Trial Outcomes & Findings for Short-incubation Levulan Photodynamic Therapy Versus Vehicle for Face/Scalp Actinic Keratosis (AK) (NCT NCT01475955)

NCT ID: NCT01475955

Last Updated: 2016-10-28

Results Overview

The proportion of subjects in each treatment group with a count of zero lesions in the Treatment Area

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

235 participants

Primary outcome timeframe

Week 12

Results posted on

2016-10-28

Participant Flow

Participant milestones

Participant milestones
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5
Broad Area ALA 2-hour + BLUE Light Treatment
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
Vehicle (VEH) group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5. Subjects receiving VEH were considered a single treatment group. Vehicle (VEH) Photodynamic Therapy (PDT) : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Overall Study
STARTED
48
48
47
46
46
Overall Study
COMPLETED
47
48
44
46
46
Overall Study
NOT COMPLETED
1
0
3
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Short-incubation Levulan Photodynamic Therapy Versus Vehicle for Face/Scalp Actinic Keratosis (AK)

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation prior to BLUE light treatment at Visit 1 and Visit 5
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation prior to BLUE light treatment at Visit 1 and Visit 5
Broad Area ALA 3-hour + BLUE Light Treatment
n=47 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation prior to BLUE light treatment at Visit 1 and Visit 5
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation prior to BLUE light treatment at Visit 1 and Visit 5
Vehicle (VEH) + BLUE Light Treatment
n=46 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visit 1 and Visit 5. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Total
n=235 Participants
Total of all reporting groups
Age, Continuous
66.3 years
STANDARD_DEVIATION 7.0 • n=93 Participants
67.1 years
STANDARD_DEVIATION 9.4 • n=4 Participants
66.4 years
STANDARD_DEVIATION 10.6 • n=27 Participants
69.5 years
STANDARD_DEVIATION 9.7 • n=483 Participants
68.4 years
STANDARD_DEVIATION 9.4 • n=36 Participants
67.5 years
STANDARD_DEVIATION 9.3 • n=10 Participants
Sex: Female, Male
Female
3 Participants
n=93 Participants
5 Participants
n=4 Participants
7 Participants
n=27 Participants
2 Participants
n=483 Participants
6 Participants
n=36 Participants
23 Participants
n=10 Participants
Sex: Female, Male
Male
45 Participants
n=93 Participants
43 Participants
n=4 Participants
40 Participants
n=27 Participants
44 Participants
n=483 Participants
40 Participants
n=36 Participants
212 Participants
n=10 Participants
Region of Enrollment
United States
48 participants
n=93 Participants
48 participants
n=4 Participants
47 participants
n=27 Participants
46 participants
n=483 Participants
46 participants
n=36 Participants
235 participants
n=10 Participants

PRIMARY outcome

Timeframe: Week 12

Population: Intent to Treat (ITT) with last observation carried forward (LOCF) to impute missing data

The proportion of subjects in each treatment group with a count of zero lesions in the Treatment Area

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=47 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=46 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Complete Clearance Rate
14 participants
7 participants
13 participants
8 participants
1 participants

SECONDARY outcome

Timeframe: Week 4

Population: ITT LOCF

The proportion of subjects in each treatment group with a count of zero lesions in the Treatment Area

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=47 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=46 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Complete Clearance Rate
5 participants
8 participants
5 participants
4 participants
0 participants

SECONDARY outcome

Timeframe: Week 8

The proportion of subjects in each treatment group with a count of zero lesions in the Treatment Area

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=47 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=46 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Complete Clearance Rate
3 participants
7 participants
8 participants
4 participants
0 participants

SECONDARY outcome

Timeframe: Week 24

the proportion of subjects in each treatment group with a count of zero lesions in the Treatment Area

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=47 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=46 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Complete Clearance Rate
11 participants
3 participants
12 participants
2 participants
1 participants

SECONDARY outcome

Timeframe: Baseline, Week 4

proportion of subjects with 75% or more reduction in the AK count in the Treatment Area as compared to baseline.

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=47 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=46 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Partial Clearance Rate
12 participants
16 participants
14 participants
12 participants
2 participants

SECONDARY outcome

Timeframe: Baseline, Week 8

proportion of subjects with 75% or more reduction in the AK count in the Treatment Area as compared to baseline.

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=47 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=46 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Partial Clearance Rate
10 participants
13 participants
15 participants
13 participants
1 participants

SECONDARY outcome

Timeframe: Baseline, Week 12

proportion of subjects with 75% or more reduction in the AK count in the Treatment Area as compared to baseline.

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=47 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=46 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Partial Clearance Rate
23 participants
24 participants
25 participants
20 participants
5 participants

SECONDARY outcome

Timeframe: Baseline Week 24

proportion of subjects with 75% or more reduction in the AK count in the Treatment Area as compared to baseline.

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=47 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=46 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Partial Clearance Rate
18 participants
19 participants
24 participants
17 participants
3 participants

SECONDARY outcome

Timeframe: Baseline, Week 4

AK Clearance Rate (AKCR) for a subject is defined as: 100% x \[1 - (Number of AK lesions in the Treatment Area at follow-up visit/Number of AK lesions in the Treatment Area at Baseline)\]

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=47 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=46 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
AK Clearance Rate
40 percent clearance
Standard Deviation 41.8
58.4 percent clearance
Standard Deviation 34.8
54.5 percent clearance
Standard Deviation 30.4
56.3 percent clearance
Standard Deviation 54.3
0.0 percent clearance
Standard Deviation 28.7

SECONDARY outcome

Timeframe: Baseline, Week 8

AK Clearance Rate (AKCR) for a subject is defined as: 100% x \[1 - (Number of AK lesions in the Treatment Area at follow-up visit/Number of AK lesions in the Treatment Area at Baseline)\]

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=47 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=46 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
AK Clearance Rate
35.7 percent clearance
Standard Deviation 42.0
52.5 percent clearance
Standard Deviation 37.2
57.1 percent clearance
Standard Deviation 37.0
57.1 percent clearance
Standard Deviation 43.8
5.7 percent clearance
Standard Deviation 33.5

SECONDARY outcome

Timeframe: Baseline, Week 12

AK Clearance Rate (AKCR) for a subject is defined as: 100% x \[1 - (Number of AK lesions in the Treatment Area at follow-up visit/Number of AK lesions in the Treatment Area at Baseline)\]

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=47 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=46 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
AK Clearance Rate
71.4 percent clearance
Standard Deviation 34.8
73.6 percent clearance
Standard Deviation 31.1
78.6 percent clearance
Standard Deviation 30.5
68.3 percent clearance
Standard Deviation 39.4
7.1 percent clearance
Standard Deviation 44.3

SECONDARY outcome

Timeframe: Baseline, Week 24

AK Clearance Rate (AKCR) for a subject is defined as: 100% x \[1 - (Number of AK lesions in the Treatment Area at follow-up visit/Number of AK lesions in the Treatment Area at Baseline)\]

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=47 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=46 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
AK Clearance Rate
66.7 percent clearance
Standard Deviation 43.4
64.9 percent clearance
Standard Deviation 36.3
75.0 percent clearance
Standard Deviation 46.3
63.4 percent clearance
Standard Deviation 44.3
14.3 percent clearance
Standard Deviation 44.0

SECONDARY outcome

Timeframe: Week 24

0 = no improvement or worsening (not satisfied at all) 1. = slight improvement (slightly satisfied) 2. = moderate improvement (moderately satisfied) 3. = excellent improvement (very satisfied)

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=44 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=46 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Subject Satisfaction Score
0 = no improvement or worsening (not satisfied at
7 participants
2 participants
4 participants
7 participants
24 participants
Subject Satisfaction Score
3 = excellent improvement (very satisfied)
20 participants
21 participants
20 participants
20 participants
7 participants
Subject Satisfaction Score
2 = moderate improvement (moderately satisfied)
14 participants
16 participants
19 participants
17 participants
9 participants
Subject Satisfaction Score
1 = slight improvement (slightly satisfied)
6 participants
9 participants
1 participants
2 participants
6 participants

SECONDARY outcome

Timeframe: Baseline

HYPERPIGMENTATION SCALE Grade 0 = No hyperpigmentation Grade 1 = Light hyperpigmentation involving small areas Grade 2 = Moderate hyperpigmentation involving small areas; light hyperpigmentation involving moderate areas Grade 3 = Moderate hyperpigmentation involving moderate sized areas; light hyperpigmentation involving large areas; small areas of marked hyperpigmentation Grade 4 = Marked hyperpigmentation involving moderate or large sized areas

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=47 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=46 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Hyperpigmentation at Baseline
Grade 1 - Light
23 participants
24 participants
23 participants
21 participants
27 participants
Hyperpigmentation at Baseline
Grade 3 - Moderate/moderate
0 participants
2 participants
1 participants
2 participants
1 participants
Hyperpigmentation at Baseline
Grade 0 - None
12 participants
8 participants
17 participants
14 participants
11 participants
Hyperpigmentation at Baseline
Grade 2 - Moderate/small
12 participants
14 participants
6 participants
9 participants
7 participants

SECONDARY outcome

Timeframe: 24-48 Hours after PDT #1

HYPERPIGMENTATION SCALE Grade 0 = No hyperpigmentation Grade 1 = Light hyperpigmentation involving small areas Grade 2 = Moderate hyperpigmentation involving small areas; light hyperpigmentation involving moderate areas Grade 3 = Moderate hyperpigmentation involving moderate sized areas; light hyperpigmentation involving large areas; small areas of marked hyperpigmentation Grade 4 = Marked hyperpigmentation involving moderate or large sized areas

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=47 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=46 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Hyperpigmentation at Visit 2
Grade 2 - Moderate/small
9 participants
11 participants
5 participants
11 participants
4 participants
Hyperpigmentation at Visit 2
Grade 0 - None
17 participants
12 participants
18 participants
15 participants
16 participants
Hyperpigmentation at Visit 2
Grade 1 - Light
19 participants
24 participants
23 participants
19 participants
25 participants
Hyperpigmentation at Visit 2
Grade 3 - Moderate/moderate
2 participants
1 participants
1 participants
1 participants
1 participants

SECONDARY outcome

Timeframe: Week 2

HYPERPIGMENTATION SCALE Grade 0 = No hyperpigmentation Grade 1 = Light hyperpigmentation involving small areas Grade 2 = Moderate hyperpigmentation involving small areas; light hyperpigmentation involving moderate areas Grade 3 = Moderate hyperpigmentation involving moderate sized areas; light hyperpigmentation involving large areas; small areas of marked hyperpigmentation Grade 4 = Marked hyperpigmentation involving moderate or large sized areas

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=47 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=46 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Hyperpigmentation at Visit 3
Grade 0 - None
16 participants
10 participants
20 participants
16 participants
15 participants
Hyperpigmentation at Visit 3
Grade 2 - Moderate/small
12 participants
10 participants
5 participants
7 participants
4 participants
Hyperpigmentation at Visit 3
Grade 3 - Moderate/moderate
1 participants
1 participants
1 participants
0 participants
2 participants
Hyperpigmentation at Visit 3
Grade 1 - Light
18 participants
27 participants
21 participants
23 participants
24 participants

SECONDARY outcome

Timeframe: Week 4

Population: Number of participants analyzed reflects ITT analysis of Tolerability Data, with no imputation techniques for missing data.

HYPERPIGMENTATION SCALE Grade 0 = No hyperpigmentation Grade 1 = Light hyperpigmentation involving small areas Grade 2 = Moderate hyperpigmentation involving small areas; light hyperpigmentation involving moderate areas Grade 3 = Moderate hyperpigmentation involving moderate sized areas; light hyperpigmentation involving large areas; small areas of marked hyperpigmentation Grade 4 = Marked hyperpigmentation involving moderate or large sized areas

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=46 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=45 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Hyperpigmentation at Visit 4
Grade 0 - None
16 participants
11 participants
22 participants
16 participants
12 participants
Hyperpigmentation at Visit 4
Grade 3 - Moderate/moderate
0 participants
1 participants
3 participants
0 participants
1 participants
Hyperpigmentation at Visit 4
Grade 1 - Light
21 participants
25 participants
15 participants
21 participants
25 participants
Hyperpigmentation at Visit 4
Grade 2 - Moderate/small
10 participants
11 participants
6 participants
9 participants
7 participants

SECONDARY outcome

Timeframe: Week 8

Population: Number of participants analyzed reflects ITT analysis of Tolerability Data, with no imputation techniques for missing data.

HYPERPIGMENTATION SCALE Grade 0 = No hyperpigmentation Grade 1 = Light hyperpigmentation involving small areas Grade 2 = Moderate hyperpigmentation involving small areas; light hyperpigmentation involving moderate areas Grade 3 = Moderate hyperpigmentation involving moderate sized areas; light hyperpigmentation involving large areas; small areas of marked hyperpigmentation Grade 4 = Marked hyperpigmentation involving moderate or large sized areas

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=45 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=44 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Hyperpigmentation at Visit 5
Grade 0 - None
16 participants
11 participants
17 participants
14 participants
11 participants
Hyperpigmentation at Visit 5
Grade 2 - Moderate/small
12 participants
10 participants
7 participants
8 participants
6 participants
Hyperpigmentation at Visit 5
Grade 3 - Moderate/moderate
0 participants
1 participants
1 participants
1 participants
2 participants
Hyperpigmentation at Visit 5
Grade 1 - Light
19 participants
26 participants
20 participants
23 participants
25 participants

SECONDARY outcome

Timeframe: Week 12

Population: Number of participants analyzed reflects ITT analysis of Tolerability Data, with no imputation techniques for missing data.

HYPERPIGMENTATION SCALE Grade 0 = No hyperpigmentation Grade 1 = Light hyperpigmentation involving small areas Grade 2 = Moderate hyperpigmentation involving small areas; light hyperpigmentation involving moderate areas Grade 3 = Moderate hyperpigmentation involving moderate sized areas; light hyperpigmentation involving large areas; small areas of marked hyperpigmentation Grade 4 = Marked hyperpigmentation involving moderate or large sized areas

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=45 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=44 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Hyperpigmentation at Visit 6
Grade 0 - None
17 participants
9 participants
18 participants
17 participants
11 participants
Hyperpigmentation at Visit 6
Grade 1 - Light
18 participants
29 participants
16 participants
20 participants
24 participants
Hyperpigmentation at Visit 6
Grade 2 - Moderate/small
11 participants
8 participants
9 participants
8 participants
8 participants
Hyperpigmentation at Visit 6
Grade 3 - Moderate/moderate
1 participants
2 participants
1 participants
1 participants
1 participants

SECONDARY outcome

Timeframe: Week 24

Population: Number of participants analyzed reflects ITT analysis of Tolerability Data, with no imputation techniques for missing data.

HYPERPIGMENTATION SCALE Grade 0 = No hyperpigmentation Grade 1 = Light hyperpigmentation involving small areas Grade 2 = Moderate hyperpigmentation involving small areas; light hyperpigmentation involving moderate areas Grade 3 = Moderate hyperpigmentation involving moderate sized areas; light hyperpigmentation involving large areas; small areas of marked hyperpigmentation Grade 4 = Marked hyperpigmentation involving moderate or large sized areas

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=44 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=46 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Hyperpigmentation at Visit 7
Grade 2 - Moderate/small
7 participants
10 participants
4 participants
6 participants
7 participants
Hyperpigmentation at Visit 7
Grade 0 - None
16 participants
9 participants
20 participants
18 participants
13 participants
Hyperpigmentation at Visit 7
Grade 1 - Light
23 participants
27 participants
19 participants
21 participants
25 participants
Hyperpigmentation at Visit 7
Grade 3 - Moderate/moderate
0 participants
2 participants
1 participants
1 participants
1 participants
Hyperpigmentation at Visit 7
Grade 4 - Marked
1 participants
0 participants
0 participants
0 participants
0 participants

SECONDARY outcome

Timeframe: Baseline

HYPOPIGMENTATION SCALE Grade 0 = No hypopigmentation Grade 1 = Light hypopigmentation involving small areas Grade 2 = Moderate hypopigmentation involving small areas; light hypopigmentation involving moderate areas Grade 3 = Moderate hypopigmentation involving moderate sized areas; light hypopigmentation involving large areas; small areas of marked hypopigmentation Grade 4 = Marked hypopigmentation involving moderate or large sized areas

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=47 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=46 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Hypopigmentation at Baseline
Grade 0 - None
21 participants
20 participants
30 participants
22 participants
18 participants
Hypopigmentation at Baseline
Grade 1 - Light
21 participants
25 participants
16 participants
23 participants
24 participants
Hypopigmentation at Baseline
Grade 2 - Moderate/small
5 participants
3 participants
1 participants
1 participants
4 participants

SECONDARY outcome

Timeframe: 24-48 Hours after PDT #1

HYPOPIGMENTATION SCALE Grade 0 = No hypopigmentation Grade 1 = Light hypopigmentation involving small areas Grade 2 = Moderate hypopigmentation involving small areas; light hypopigmentation involving moderate areas Grade 3 = Moderate hypopigmentation involving moderate sized areas; light hypopigmentation involving large areas; small areas of marked hypopigmentation Grade 4 = Marked hypopigmentation involving moderate or large sized areas

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=47 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=46 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Hypopigmentation at Visit 2
Grade 1 - Light
16 participants
20 participants
14 participants
22 participants
20 participants
Hypopigmentation at Visit 2
Grade 0 - None
25 participants
24 participants
31 participants
23 participants
23 participants
Hypopigmentation at Visit 2
Grade 2 - Moderate/small
6 participants
4 participants
2 participants
1 participants
3 participants

SECONDARY outcome

Timeframe: Week 2

Population: Number of participants analyzed reflects ITT analysis of Tolerability Data, with no imputation techniques for missing data.

HYPOPIGMENTATION SCALE Grade 0 = No hypopigmentation Grade 1 = Light hypopigmentation involving small areas Grade 2 = Moderate hypopigmentation involving small areas; light hypopigmentation involving moderate areas Grade 3 = Moderate hypopigmentation involving moderate sized areas; light hypopigmentation involving large areas; small areas of marked hypopigmentation Grade 4 = Marked hypopigmentation involving moderate or large sized areas

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=47 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=45 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Hypopigmentation at Visit 3
Grade 0 - None
25 participants
23 participants
31 participants
21 participants
20 participants
Hypopigmentation at Visit 3
Grade 1 - Light
17 participants
22 participants
14 participants
24 participants
21 participants
Hypopigmentation at Visit 3
Grade 2 - Moderate/small
5 participants
3 participants
2 participants
1 participants
4 participants

SECONDARY outcome

Timeframe: Week 4

Population: Number of participants analyzed reflects ITT analysis of Tolerability Data, with no imputation techniques for missing data.

HYPOPIGMENTATION SCALE Grade 0 = No hypopigmentation Grade 1 = Light hypopigmentation involving small areas Grade 2 = Moderate hypopigmentation involving small areas; light hypopigmentation involving moderate areas Grade 3 = Moderate hypopigmentation involving moderate sized areas; light hypopigmentation involving large areas; small areas of marked hypopigmentation Grade 4 = Marked hypopigmentation involving moderate or large sized areas

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=46 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=45 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Hypopigmentation at Visit 4
Grade - None
25 participants
20 participants
29 participants
19 participants
19 participants
Hypopigmentation at Visit 4
Grade 2 - Moderate/small
5 participants
1 participants
0 participants
1 participants
4 participants
Hypopigmentation at Visit 4
Grade 1 - Light
17 participants
21 participants
16 participants
26 participants
22 participants
Hypopigmentation at Visit 4
Grade 3 - Moderate/moderate
0 participants
0 participants
1 participants
0 participants
0 participants

SECONDARY outcome

Timeframe: Week 8

Population: Number of participants analyzed reflects ITT analysis of Tolerability Data, with no imputation techniques for missing data.

HYPOPIGMENTATION SCALE Grade 0 = No hypopigmentation Grade 1 = Light hypopigmentation involving small areas Grade 2 = Moderate hypopigmentation involving small areas; light hypopigmentation involving moderate areas Grade 3 = Moderate hypopigmentation involving moderate sized areas; light hypopigmentation involving large areas; small areas of marked hypopigmentation Grade 4 = Marked hypopigmentation involving moderate or large sized areas

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=45 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=44 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Hypopigmentation at Visit 5
Grade 1 - Light
21 participants
26 participants
17 participants
25 participants
23 participants
Hypopigmentation at Visit 5
Grade 0 - None
23 participants
19 participants
28 participants
17 participants
18 participants
Hypopigmentation at Visit 5
Grade 2 - Moderate/small
3 participants
3 participants
0 participants
4 participants
3 participants

SECONDARY outcome

Timeframe: Week 12

Population: Number of participants analyzed reflects ITT analysis of Tolerability Data, with no imputation techniques for missing data.

HYPOPIGMENTATION SCALE Grade 0 = No hypopigmentation Grade 1 = Light hypopigmentation involving small areas Grade 2 = Moderate hypopigmentation involving small areas; light hypopigmentation involving moderate areas Grade 3 = Moderate hypopigmentation involving moderate sized areas; light hypopigmentation involving large areas; small areas of marked hypopigmentation Grade 4 = Marked hypopigmentation involving moderate or large sized areas

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=44 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=44 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Hypopigmentation at Visit 6
Grade 0 - None
23 participants
20 participants
26 participants
19 participants
15 participants
Hypopigmentation at Visit 6
Grade 1 - Light
21 participants
26 participants
18 participants
20 participants
26 participants
Hypopigmentation at Visit 6
Grade 2 - Moderate/small
3 participants
2 participants
0 participants
6 participants
3 participants
Hypopigmentation at Visit 6
Grade 3 - Moderate/moderate
0 participants
0 participants
0 participants
1 participants
0 participants

SECONDARY outcome

Timeframe: Week 24

Population: Number of participants analyzed reflects ITT analysis of Tolerability Data, with no imputation techniques for missing data.

HYPOPIGMENTATION SCALE Grade 0 = No hypopigmentation Grade 1 = Light hypopigmentation involving small areas Grade 2 = Moderate hypopigmentation involving small areas; light hypopigmentation involving moderate areas Grade 3 = Moderate hypopigmentation involving moderate sized areas; light hypopigmentation involving large areas; small areas of marked hypopigmentation Grade 4 = Marked hypopigmentation involving moderate or large sized areas

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=44 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=46 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Hypopigmentation at Visit 7
Grade 0 - None
22 participants
18 participants
28 participants
20 participants
17 participants
Hypopigmentation at Visit 7
Grade 1 - Light
22 participants
27 participants
15 participants
24 participants
25 participants
Hypopigmentation at Visit 7
Grade 2 - Moderate/small
3 participants
3 participants
1 participants
2 participants
4 participants

SECONDARY outcome

Timeframe: Baseline

Erythema Scale - Grade 0 = None Grade 1 = Minimal - barely perceptible erythema Grade 2 = Mild - predominantly minimal erythema (pink) in the treated area with or without a few isolated areas of more intense erythema Grade 3 = Moderate - predominantly moderate erythema (red) in the treated area with or without a few isolated areas of intense erythema (bright red) Grade 4 = Severe - predominantly intense erythema (bright red) in the treated area with or without a few isolated areas of very intense (fiery red) erythema

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=47 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=46 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Erythema at Baseline
Grade 1 - Minimal
23 participants
23 participants
24 participants
19 participants
18 participants
Erythema at Baseline
Grade 0 - None
14 participants
10 participants
15 participants
19 participants
15 participants
Erythema at Baseline
Grade 2 Mild
10 participants
15 participants
8 participants
8 participants
11 participants
Erythema at Baseline
Grade 3 - Moderate
0 participants
0 participants
0 participants
0 participants
2 participants

SECONDARY outcome

Timeframe: 5 minutes after PDT #1

Erythema Scale - Grade 0 = None Grade 1 = Minimal - barely perceptible erythema Grade 2 = Mild - predominantly minimal erythema (pink) in the treated area with or without a few isolated areas of more intense erythema Grade 3 = Moderate - predominantly moderate erythema (red) in the treated area with or without a few isolated areas of intense erythema (bright red) Grade 4 = Severe - predominantly intense erythema (bright red) in the treated area with or without a few isolated areas of very intense (fiery red) erythema

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=47 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=46 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Erythema Post-Light Treatment
Grade 0 - None
2 participants
0 participants
0 participants
0 participants
4 participants
Erythema Post-Light Treatment
Grade 1 - Minimal
8 participants
4 participants
5 participants
9 participants
25 participants
Erythema Post-Light Treatment
Grade 2 Mild
19 participants
16 participants
13 participants
18 participants
14 participants
Erythema Post-Light Treatment
Grade 3 - Moderate
16 participants
26 participants
22 participants
18 participants
3 participants
Erythema Post-Light Treatment
Grade 4 - Severe
2 participants
2 participants
7 participants
1 participants
0 participants

SECONDARY outcome

Timeframe: 24-48 hours after PDT #1

Erythema Scale - Grade 0 = None Grade 1 = Minimal - barely perceptible erythema Grade 2 = Mild - predominantly minimal erythema (pink) in the treated area with or without a few isolated areas of more intense erythema Grade 3 = Moderate - predominantly moderate erythema (red) in the treated area with or without a few isolated areas of intense erythema (bright red) Grade 4 = Severe - predominantly intense erythema (bright red) in the treated area with or without a few isolated areas of very intense (fiery red) erythema

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=47 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=46 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Erythema at Visit 2
Grade 4 - Severe
2 participants
8 participants
12 participants
2 participants
0 participants
Erythema at Visit 2
Grade 0 - None
2 participants
0 participants
1 participants
0 participants
13 participants
Erythema at Visit 2
Grade 1 - Minimal
8 participants
3 participants
4 participants
11 participants
17 participants
Erythema at Visit 2
Grade 2 Mild
10 participants
14 participants
12 participants
9 participants
14 participants
Erythema at Visit 2
Grade 3 - Moderate
25 participants
23 participants
18 participants
24 participants
2 participants

SECONDARY outcome

Timeframe: Week 2

Population: Number of participants analyzed reflects ITT analysis of Tolerability Data, with no imputation techniques for missing data.

Erythema Scale - Grade 0 = None Grade 1 = Minimal - barely perceptible erythema Grade 2 = Mild - predominantly minimal erythema (pink) in the treated area with or without a few isolated areas of more intense erythema Grade 3 = Moderate - predominantly moderate erythema (red) in the treated area with or without a few isolated areas of intense erythema (bright red) Grade 4 = Severe - predominantly intense erythema (bright red) in the treated area with or without a few isolated areas of very intense (fiery red) erythema

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=47 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=45 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Erythema at Visit 3
Grade 1 - Minimal
22 participants
23 participants
19 participants
26 participants
21 participants
Erythema at Visit 3
Grade 3 - Moderate
1 participants
2 participants
3 participants
0 participants
1 participants
Erythema at Visit 3
Grade 4 - Severe
0 participants
0 participants
0 participants
0 participants
0 participants
Erythema at Visit 3
Grade 0 - None
11 participants
5 participants
11 participants
14 participants
15 participants
Erythema at Visit 3
Grade 2 Mild
13 participants
18 participants
14 participants
6 participants
8 participants

SECONDARY outcome

Timeframe: Week 4

Population: Number of participants analyzed reflects ITT analysis of Tolerability Data, with no imputation techniques for missing data.

Erythema Scale - Grade 0 = None Grade 1 = Minimal - barely perceptible erythema Grade 2 = Mild - predominantly minimal erythema (pink) in the treated area with or without a few isolated areas of more intense erythema Grade 3 = Moderate - predominantly moderate erythema (red) in the treated area with or without a few isolated areas of intense erythema (bright red) Grade 4 = Severe - predominantly intense erythema (bright red) in the treated area with or without a few isolated areas of very intense (fiery red) erythema

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=46 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=45 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Erythema at Visit 4
Grade 0 - None
12 participants
13 participants
16 participants
12 participants
14 participants
Erythema at Visit 4
Grade 1 - Minimal
27 participants
22 participants
20 participants
26 participants
18 participants
Erythema at Visit 4
Grade 2 Mild
8 participants
13 participants
9 participants
7 participants
12 participants
Erythema at Visit 4
Grade 3 - Moderate
0 participants
0 participants
1 participants
1 participants
1 participants
Erythema at Visit 4
Grade 4 - Severe
0 participants
0 participants
0 participants
0 participants
0 participants

SECONDARY outcome

Timeframe: Week 8 pre-drug

Population: Number of participants analyzed reflects ITT analysis of Tolerability Data, with no imputation techniques for missing data.

Erythema Scale - Grade 0 = None Grade 1 = Minimal - barely perceptible erythema Grade 2 = Mild - predominantly minimal erythema (pink) in the treated area with or without a few isolated areas of more intense erythema Grade 3 = Moderate - predominantly moderate erythema (red) in the treated area with or without a few isolated areas of intense erythema (bright red) Grade 4 = Severe - predominantly intense erythema (bright red) in the treated area with or without a few isolated areas of very intense (fiery red) erythema

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=45 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=44 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Erythema at Visit 5 (Pre-drug)
Grade 1 - Minimal
25 participants
17 participants
22 participants
19 participants
20 participants
Erythema at Visit 5 (Pre-drug)
Grade 2 Mild
9 participants
16 participants
5 participants
6 participants
10 participants
Erythema at Visit 5 (Pre-drug)
Grade 0 - None
13 participants
15 participants
17 participants
21 participants
12 participants
Erythema at Visit 5 (Pre-drug)
Grade 3 - Moderate
0 participants
0 participants
1 participants
0 participants
2 participants
Erythema at Visit 5 (Pre-drug)
Grade 4 - Severe
0 participants
0 participants
0 participants
0 participants
0 participants

SECONDARY outcome

Timeframe: Week 8 5 minutes post light treatment

Population: Number of participants analyzed reflects ITT analysis of Tolerability Data, with no imputation techniques for missing data.

Erythema Scale - Grade 0 = None Grade 1 = Minimal - barely perceptible erythema Grade 2 = Mild - predominantly minimal erythema (pink) in the treated area with or without a few isolated areas of more intense erythema Grade 3 = Moderate - predominantly moderate erythema (red) in the treated area with or without a few isolated areas of intense erythema (bright red) Grade 4 = Severe - predominantly intense erythema (bright red) in the treated area with or without a few isolated areas of very intense (fiery red) erythema

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=41 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=37 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=31 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=41 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=44 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Erythema at Visit 5 (Post-light)
Grade 0 - None
1 participants
0 participants
1 participants
0 participants
4 participants
Erythema at Visit 5 (Post-light)
Grade 1 - Minimal
8 participants
5 participants
7 participants
9 participants
28 participants
Erythema at Visit 5 (Post-light)
Grade 2 Mild
19 participants
10 participants
7 participants
19 participants
7 participants
Erythema at Visit 5 (Post-light)
Grade 3 - Moderate
12 participants
19 participants
16 participants
13 participants
5 participants
Erythema at Visit 5 (Post-light)
Grade 4 - Severe
1 participants
3 participants
0 participants
0 participants
0 participants

SECONDARY outcome

Timeframe: Week 12

Population: Number of participants analyzed reflects ITT analysis of Tolerability Data, with no imputation techniques for missing data.

Erythema Scale - Grade 0 = None Grade 1 = Minimal - barely perceptible erythema Grade 2 = Mild - predominantly minimal erythema (pink) in the treated area with or without a few isolated areas of more intense erythema Grade 3 = Moderate - predominantly moderate erythema (red) in the treated area with or without a few isolated areas of intense erythema (bright red) Grade 4 = Severe - predominantly intense erythema (bright red) in the treated area with or without a few isolated areas of very intense (fiery red) erythema

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=44 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=44 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Erythema at Visit 6
Grade 3 - Moderate
0 participants
0 participants
0 participants
1 participants
1 participants
Erythema at Visit 6
Grade 0 - None
16 participants
15 participants
18 participants
22 participants
17 participants
Erythema at Visit 6
Grade 1 - Minimal
24 participants
23 participants
19 participants
19 participants
18 participants
Erythema at Visit 6
Grade 2 Mild
7 participants
10 participants
7 participants
4 participants
8 participants
Erythema at Visit 6
Grade 4 - Severe
0 participants
0 participants
0 participants
0 participants
0 participants

SECONDARY outcome

Timeframe: Week 24

Population: Number of participants analyzed reflects ITT analysis of Tolerability Data, with no imputation techniques for missing data.

Erythema Scale - Grade 0 = None Grade 1 = Minimal - barely perceptible erythema Grade 2 = Mild - predominantly minimal erythema (pink) in the treated area with or without a few isolated areas of more intense erythema Grade 3 = Moderate - predominantly moderate erythema (red) in the treated area with or without a few isolated areas of intense erythema (bright red) Grade 4 = Severe - predominantly intense erythema (bright red) in the treated area with or without a few isolated areas of very intense (fiery red) erythema

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=44 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=46 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Erythema at Visit 7
Grade 0 - None
20 participants
16 participants
19 participants
27 participants
21 participants
Erythema at Visit 7
Grade 1 - Minimal
19 participants
20 participants
20 participants
15 participants
16 participants
Erythema at Visit 7
Grade 2 Mild
7 participants
12 participants
5 participants
4 participants
7 participants
Erythema at Visit 7
Grade 3 - Moderate
1 participants
0 participants
0 participants
0 participants
2 participants
Erythema at Visit 7
Grade 4 - Severe
0 participants
0 participants
0 participants
0 participants
0 participants

SECONDARY outcome

Timeframe: Baseline

EDEMA SCALE Grade 0 = None Grade 1 = Minimal - scant, rare edema Grade 2 = Mild - easily seen edema, minimally palpable, involving up to 1/3 of the treatment area Grade 3 = Moderate - easily seen edema and typically palpable, involving between 1/3 to 2/3 of the treatment area Grade 4 = Severe - easily seen edema, indurated in some areas, involving over 2/3 of the treatment area

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=47 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=46 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Edema at Baseline
Grade 0 - None
0 participants
0 participants
1 participants
0 participants
0 participants
Edema at Baseline
Grade 1 - Minimal
0 participants
0 participants
0 participants
0 participants
0 participants
Edema at Baseline
Grade 2 - Mild
0 participants
0 participants
0 participants
0 participants
0 participants
Edema at Baseline
Grade 3 - Moderate
0 participants
0 participants
0 participants
0 participants
0 participants
Edema at Baseline
Grade 4 - Severe
0 participants
0 participants
0 participants
0 participants
0 participants

SECONDARY outcome

Timeframe: 5 minutes after PDT #1

EDEMA SCALE Grade 0 = None Grade 1 = Minimal - scant, rare edema Grade 2 = Mild - easily seen edema, minimally palpable, involving up to 1/3 of the treatment area Grade 3 = Moderate - easily seen edema and typically palpable, involving between 1/3 to 2/3 of the treatment area Grade 4 = Severe - easily seen edema, indurated in some areas, involving over 2/3 of the treatment area

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=47 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=46 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Edema Post-Light Treatment
Grade 4 - Severe
0 participants
0 participants
0 participants
0 participants
0 participants
Edema Post-Light Treatment
Grade 0 - None
37 participants
28 participants
27 participants
33 participants
44 participants
Edema Post-Light Treatment
Grade 1 - Minimal
8 participants
12 participants
11 participants
10 participants
2 participants
Edema Post-Light Treatment
Grade 2 - Mild
2 participants
7 participants
3 participants
3 participants
0 participants
Edema Post-Light Treatment
Grade 3 - Moderate
0 participants
1 participants
6 participants
0 participants
0 participants

SECONDARY outcome

Timeframe: 24-48 hours post PDT#1

EDEMA SCALE Grade 0 = None Grade 1 = Minimal - scant, rare edema Grade 2 = Mild - easily seen edema, minimally palpable, involving up to 1/3 of the treatment area Grade 3 = Moderate - easily seen edema and typically palpable, involving between 1/3 to 2/3 of the treatment area Grade 4 = Severe - easily seen edema, indurated in some areas, involving over 2/3 of the treatment area

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=47 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=46 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Edema at Visit 2
Grade 0 - None
32 participants
31 participants
26 participants
27 participants
44 participants
Edema at Visit 2
Grade 1 - Minimal
8 participants
10 participants
10 participants
13 participants
2 participants
Edema at Visit 2
Grade 2 - Mild
5 participants
3 participants
6 participants
4 participants
0 participants
Edema at Visit 2
Grade 3 - Moderate
2 participants
3 participants
4 participants
2 participants
0 participants
Edema at Visit 2
Grade 4 - Severe
0 participants
1 participants
1 participants
0 participants
0 participants

SECONDARY outcome

Timeframe: Week 2

Population: Number of participants analyzed reflects ITT analysis of Tolerability Data, with no imputation techniques for missing data.

EDEMA SCALE Grade 0 = None Grade 1 = Minimal - scant, rare edema Grade 2 = Mild - easily seen edema, minimally palpable, involving up to 1/3 of the treatment area Grade 3 = Moderate - easily seen edema and typically palpable, involving between 1/3 to 2/3 of the treatment area Grade 4 = Severe - easily seen edema, indurated in some areas, involving over 2/3 of the treatment area

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=47 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=45 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Edema at Visit 3
Grade 3 - Moderate
0 participants
0 participants
0 participants
0 participants
0 participants
Edema at Visit 3
Grade 0 - None
46 participants
44 participants
42 participants
44 participants
44 participants
Edema at Visit 3
Grade 1 - Minimal
1 participants
2 participants
1 participants
2 participants
1 participants
Edema at Visit 3
Grade 2 - Mild
0 participants
2 participants
4 participants
0 participants
0 participants
Edema at Visit 3
Grade 4 - Severe
0 participants
0 participants
0 participants
0 participants
0 participants

SECONDARY outcome

Timeframe: Week 4

Population: Number of participants analyzed reflects ITT analysis of Tolerability Data, with no imputation techniques for missing data.

EDEMA SCALE Grade 0 = None Grade 1 = Minimal - scant, rare edema Grade 2 = Mild - easily seen edema, minimally palpable, involving up to 1/3 of the treatment area Grade 3 = Moderate - easily seen edema and typically palpable, involving between 1/3 to 2/3 of the treatment area Grade 4 = Severe - easily seen edema, indurated in some areas, involving over 2/3 of the treatment area

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=46 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=45 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Edema at Visit 4
Grade 2 - Mild
0 participants
0 participants
0 participants
0 participants
0 participants
Edema at Visit 4
Grade 3 - Moderate
0 participants
0 participants
0 participants
0 participants
0 participants
Edema at Visit 4
Grade 0 - None
46 participants
47 participants
46 participants
46 participants
45 participants
Edema at Visit 4
Grade 1 - Minimal
1 participants
1 participants
0 participants
0 participants
0 participants
Edema at Visit 4
Grade 4 - Severe
0 participants
0 participants
0 participants
0 participants
0 participants

SECONDARY outcome

Timeframe: Week 8 pre-drug

Population: Number of participants analyzed reflects ITT analysis of Tolerability Data, with no imputation techniques for missing data.

EDEMA SCALE Grade 0 = None Grade 1 = Minimal - scant, rare edema Grade 2 = Mild - easily seen edema, minimally palpable, involving up to 1/3 of the treatment area Grade 3 = Moderate - easily seen edema and typically palpable, involving between 1/3 to 2/3 of the treatment area Grade 4 = Severe - easily seen edema, indurated in some areas, involving over 2/3 of the treatment area

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=45 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=44 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Edema at Visit 5 (Pre-drug)
Grade 2 - Mild
0 participants
0 participants
0 participants
0 participants
0 participants
Edema at Visit 5 (Pre-drug)
Grade 3 - Moderate
0 participants
0 participants
0 participants
0 participants
0 participants
Edema at Visit 5 (Pre-drug)
Grade 0 - None
47 participants
48 participants
45 participants
46 participants
44 participants
Edema at Visit 5 (Pre-drug)
Grade 1 - Minimal
0 participants
0 participants
0 participants
0 participants
0 participants
Edema at Visit 5 (Pre-drug)
Grade 4 - Severe
0 participants
0 participants
0 participants
0 participants
0 participants

SECONDARY outcome

Timeframe: 5 minutes post PDT #2

Population: Number of participants analyzed reflects ITT analysis of Tolerability Data, with no imputation techniques for missing data.

EDEMA SCALE Grade 0 = None Grade 1 = Minimal - scant, rare edema Grade 2 = Mild - easily seen edema, minimally palpable, involving up to 1/3 of the treatment area Grade 3 = Moderate - easily seen edema and typically palpable, involving between 1/3 to 2/3 of the treatment area Grade 4 = Severe - easily seen edema, indurated in some areas, involving over 2/3 of the treatment area

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=41 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=37 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=31 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=41 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=44 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Edema Post PDT #2
Grade 1 - Minimal
6 participants
12 participants
7 participants
11 participants
1 participants
Edema Post PDT #2
Grade 0 - None
32 participants
20 participants
18 participants
26 participants
43 participants
Edema Post PDT #2
Grade 2 - Mild
2 participants
4 participants
3 participants
4 participants
0 participants
Edema Post PDT #2
Grade 3 - Moderate
1 participants
1 participants
3 participants
0 participants
0 participants
Edema Post PDT #2
Grade 4 - Severe
0 participants
0 participants
0 participants
0 participants
0 participants

SECONDARY outcome

Timeframe: Week 12

Population: Number of participants analyzed reflects ITT analysis of Tolerability Data, with no imputation techniques for missing data.

EDEMA SCALE Grade 0 = None Grade 1 = Minimal - scant, rare edema Grade 2 = Mild - easily seen edema, minimally palpable, involving up to 1/3 of the treatment area Grade 3 = Moderate - easily seen edema and typically palpable, involving between 1/3 to 2/3 of the treatment area Grade 4 = Severe - easily seen edema, indurated in some areas, involving over 2/3 of the treatment area

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=44 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=44 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Edema at Week 12
Grade 3 - Moderate
0 participants
0 participants
0 participants
0 participants
0 participants
Edema at Week 12
Grade 4 - Severe
0 participants
0 participants
0 participants
0 participants
0 participants
Edema at Week 12
Grade 0 - None
47 participants
48 participants
43 participants
46 participants
44 participants
Edema at Week 12
Grade 1 - Minimal
0 participants
0 participants
1 participants
0 participants
0 participants
Edema at Week 12
Grade 2 - Mild
0 participants
0 participants
0 participants
0 participants
0 participants

SECONDARY outcome

Timeframe: Week 24

Population: Number of participants analyzed reflects ITT analysis of Tolerability Data, with no imputation techniques for missing data.

EDEMA SCALE Grade 0 = None Grade 1 = Minimal - scant, rare edema Grade 2 = Mild - easily seen edema, minimally palpable, involving up to 1/3 of the treatment area Grade 3 = Moderate - easily seen edema and typically palpable, involving between 1/3 to 2/3 of the treatment area Grade 4 = Severe - easily seen edema, indurated in some areas, involving over 2/3 of the treatment area

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=44 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=46 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Edema at Week 24
Grade 2 - Mild
0 participants
0 participants
0 participants
0 participants
0 participants
Edema at Week 24
Grade 0 - None
47 participants
48 participants
43 participants
45 participants
45 participants
Edema at Week 24
Grade 1 - Minimal
0 participants
0 participants
1 participants
1 participants
1 participants
Edema at Week 24
Grade 3 - Moderate
0 participants
0 participants
0 participants
0 participants
0 participants
Edema at Week 24
Grade 4 - Severe
0 participants
0 participants
0 participants
0 participants
0 participants

SECONDARY outcome

Timeframe: Baseline

STINGING AND BURNING SCALE Grade 0 = None Grade 1 = Minimal, barely perceptible -tolerable and little discomfort Grade 2 = Moderate - tolerable, but causes some discomfort Grade 3 = Severe - very uncomfortable or intolerable The most intense stinging/burning sensation during the 16 minute 40 second light treatment will be recorded.

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=47 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=46 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Stinging/Burning at Baseline
Grade 2 - Moderate
0 participants
0 participants
0 participants
0 participants
0 participants
Stinging/Burning at Baseline
Grade 0 - None
47 participants
48 participants
47 participants
46 participants
44 participants
Stinging/Burning at Baseline
Grade 1 - MInimal
0 participants
0 participants
0 participants
0 participants
2 participants
Stinging/Burning at Baseline
Grade 3 - Severe
0 participants
0 participants
0 participants
0 participants
0 participants

SECONDARY outcome

Timeframe: During PDT #1 (most intense sensation)

STINGING AND BURNING SCALE Grade 0 = None Grade 1 = Minimal, barely perceptible -tolerable and little discomfort Grade 2 = Moderate - tolerable, but causes some discomfort Grade 3 = Severe - very uncomfortable or intolerable The most intense stinging/burning sensation during the 16 minute 40 second light treatment will be recorded.

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=47 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=46 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Stinging/Burning During Light Treatment
Grade 0 - None
2 participants
1 participants
0 participants
3 participants
35 participants
Stinging/Burning During Light Treatment
Grade 2 - Moderate
23 participants
29 participants
22 participants
19 participants
6 participants
Stinging/Burning During Light Treatment
Grade 1 - MInimal
15 participants
9 participants
10 participants
16 participants
11 participants
Stinging/Burning During Light Treatment
Grade 3 - Severe
7 participants
9 participants
15 participants
8 participants
0 participants

SECONDARY outcome

Timeframe: 5 minutes post PDT #1

STINGING AND BURNING SCALE Grade 0 = None Grade 1 = Minimal, barely perceptible -tolerable and little discomfort Grade 2 = Moderate - tolerable, but causes some discomfort Grade 3 = Severe - very uncomfortable or intolerable The most intense stinging/burning sensation during the 16 minute 40 second light treatment will be recorded.

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=47 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=46 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Stinging/Burning Post Light-Treatment
Grade 2 - Moderate
8 participants
25 participants
19 participants
13 participants
0 participants
Stinging/Burning Post Light-Treatment
Grade 3 - Severe
2 participants
1 participants
8 participants
0 participants
0 participants
Stinging/Burning Post Light-Treatment
Grade 0 - None
8 participants
5 participants
1 participants
8 participants
40 participants
Stinging/Burning Post Light-Treatment
Grade 1 - MInimal
29 participants
17 participants
19 participants
25 participants
6 participants

SECONDARY outcome

Timeframe: 24-48 hours post PDT #1

STINGING AND BURNING SCALE Grade 0 = None Grade 1 = Minimal, barely perceptible -tolerable and little discomfort Grade 2 = Moderate - tolerable, but causes some discomfort Grade 3 = Severe - very uncomfortable or intolerable The most intense stinging/burning sensation during the 16 minute 40 second light treatment will be recorded.

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=47 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=46 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Stinging/Burning at Visit 2
Grade 0 - None
25 participants
23 participants
20 participants
35 participants
41 participants
Stinging/Burning at Visit 2
Grade 3 - Severe
0 participants
1 participants
3 participants
0 participants
0 participants
Stinging/Burning at Visit 2
Grade 1 - MInimal
18 participants
20 participants
17 participants
10 participants
4 participants
Stinging/Burning at Visit 2
Grade 2 - Moderate
4 participants
4 participants
7 participants
1 participants
1 participants

SECONDARY outcome

Timeframe: Week 2

Population: Number of participants analyzed reflects ITT analysis of Tolerability Data, with no imputation techniques for missing data.

STINGING AND BURNING SCALE Grade 0 = None Grade 1 = Minimal, barely perceptible -tolerable and little discomfort Grade 2 = Moderate - tolerable, but causes some discomfort Grade 3 = Severe - very uncomfortable or intolerable The most intense stinging/burning sensation during the 16 minute 40 second light treatment will be recorded.

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=47 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=45 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Stinging/Burning at Visit 3
Grade 0 - None
46 participants
45 participants
44 participants
46 participants
45 participants
Stinging/Burning at Visit 3
Grade 2 - Moderate
0 participants
0 participants
1 participants
0 participants
0 participants
Stinging/Burning at Visit 3
Grade 3 - Severe
0 participants
0 participants
0 participants
0 participants
0 participants
Stinging/Burning at Visit 3
Grade 1 - MInimal
1 participants
3 participants
2 participants
0 participants
0 participants

SECONDARY outcome

Timeframe: Week 4

Population: Number of participants analyzed reflects ITT analysis of Tolerability Data, with no imputation techniques for missing data.

STINGING AND BURNING SCALE Grade 0 = None Grade 1 = Minimal, barely perceptible -tolerable and little discomfort Grade 2 = Moderate - tolerable, but causes some discomfort Grade 3 = Severe - very uncomfortable or intolerable The most intense stinging/burning sensation during the 16 minute 40 second light treatment will be recorded.

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=46 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=44 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Stinging/Burning at Visit 4
Grade 1 - MInimal
2 participants
1 participants
0 participants
0 participants
0 participants
Stinging/Burning at Visit 4
Grade 2 - Moderate
0 participants
0 participants
0 participants
0 participants
1 participants
Stinging/Burning at Visit 4
Grade 3 - Severe
0 participants
0 participants
0 participants
0 participants
0 participants
Stinging/Burning at Visit 4
Grade 0 - None
45 participants
47 participants
46 participants
46 participants
44 participants

SECONDARY outcome

Timeframe: Week 8 prior to drug

Population: Number of participants analyzed reflects ITT analysis of Tolerability Data, with no imputation techniques for missing data.

STINGING AND BURNING SCALE Grade 0 = None Grade 1 = Minimal, barely perceptible -tolerable and little discomfort Grade 2 = Moderate - tolerable, but causes some discomfort Grade 3 = Severe - very uncomfortable or intolerable The most intense stinging/burning sensation during the 16 minute 40 second light treatment will be recorded.

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=45 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=44 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Stinging/Burning at Visit 5 (Pre-drug)
Grade 0 - None
47 participants
48 participants
45 participants
45 participants
42 participants
Stinging/Burning at Visit 5 (Pre-drug)
Grade 1 - MInimal
0 participants
0 participants
0 participants
1 participants
2 participants
Stinging/Burning at Visit 5 (Pre-drug)
Grade 3 - Severe
0 participants
0 participants
0 participants
0 participants
0 participants
Stinging/Burning at Visit 5 (Pre-drug)
Grade 2 - Moderate
0 participants
0 participants
0 participants
0 participants
0 participants

SECONDARY outcome

Timeframe: during PDT #2

Population: Number of participants analyzed reflects ITT analysis of Tolerability Data, with no imputation techniques for missing data.

STINGING AND BURNING SCALE Grade 0 = None Grade 1 = Minimal, barely perceptible -tolerable and little discomfort Grade 2 = Moderate - tolerable, but causes some discomfort Grade 3 = Severe - very uncomfortable or intolerable The most intense stinging/burning sensation during the 16 minute 40 second light treatment will be recorded.

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=41 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=37 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=31 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=41 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=44 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Stinging/Burning at Visit 5 During PDT#2
Grade 0 - None
4 participants
1 participants
0 participants
4 participants
28 participants
Stinging/Burning at Visit 5 During PDT#2
Grade 1 - MInimal
20 participants
11 participants
7 participants
23 participants
16 participants
Stinging/Burning at Visit 5 During PDT#2
Grade 2 - Moderate
15 participants
20 participants
16 participants
13 participants
0 participants
Stinging/Burning at Visit 5 During PDT#2
Grade 3 - Severe
2 participants
5 participants
8 participants
1 participants
0 participants

SECONDARY outcome

Timeframe: 5 minutes post PDT #2

Population: Number of participants analyzed reflects ITT analysis of Tolerability Data, with no imputation techniques for missing data.

STINGING AND BURNING SCALE Grade 0 = None Grade 1 = Minimal, barely perceptible -tolerable and little discomfort Grade 2 = Moderate - tolerable, but causes some discomfort Grade 3 = Severe - very uncomfortable or intolerable The most intense stinging/burning sensation during the 16 minute 40 second light treatment will be recorded.

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=31 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=37 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=31 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=41 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=44 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Stinging/Burning at Visit 5 Post PDT#2
Grade 0 - None
7 participants
2 participants
2 participants
10 participants
35 participants
Stinging/Burning at Visit 5 Post PDT#2
Grade 1 - MInimal
26 participants
18 participants
14 participants
22 participants
9 participants
Stinging/Burning at Visit 5 Post PDT#2
Grade 2 - Moderate
8 participants
15 participants
11 participants
9 participants
0 participants
Stinging/Burning at Visit 5 Post PDT#2
Grade 3 - Severe
0 participants
2 participants
4 participants
0 participants
0 participants

SECONDARY outcome

Timeframe: Week 12

Population: Number of participants analyzed reflects ITT analysis of Tolerability Data, with no imputation techniques for missing data.

STINGING AND BURNING SCALE Grade 0 = None Grade 1 = Minimal, barely perceptible -tolerable and little discomfort Grade 2 = Moderate - tolerable, but causes some discomfort Grade 3 = Severe - very uncomfortable or intolerable The most intense stinging/burning sensation during the 16 minute 40 second light treatment will be recorded.

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=44 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=44 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Stinging/Burning at Visit 6
Grade 0 - None
47 participants
48 participants
44 participants
44 participants
43 participants
Stinging/Burning at Visit 6
Grade 1 - MInimal
0 participants
0 participants
0 participants
2 participants
1 participants
Stinging/Burning at Visit 6
Grade 2 - Moderate
0 participants
0 participants
0 participants
0 participants
0 participants
Stinging/Burning at Visit 6
Grade 3 - Severe
0 participants
0 participants
0 participants
0 participants
0 participants

SECONDARY outcome

Timeframe: Week 24

Population: Number of participants analyzed reflects ITT analysis of Tolerability Data, with no imputation techniques for missing data.

STINGING AND BURNING SCALE Grade 0 = None Grade 1 = Minimal, barely perceptible -tolerable and little discomfort Grade 2 = Moderate - tolerable, but causes some discomfort Grade 3 = Severe - very uncomfortable or intolerable The most intense stinging/burning sensation during the 16 minute 40 second light treatment will be recorded.

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=44 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=46 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Stinging/Burning at Visit 7
Grade 2 - Moderate
0 participants
0 participants
0 participants
0 participants
0 participants
Stinging/Burning at Visit 7
Grade 0 - None
47 participants
48 participants
44 participants
45 participants
46 participants
Stinging/Burning at Visit 7
Grade 1 - MInimal
0 participants
0 participants
0 participants
1 participants
0 participants
Stinging/Burning at Visit 7
Grade 3 - Severe
0 participants
0 participants
0 participants
0 participants
0 participants

SECONDARY outcome

Timeframe: Baseline

SCALING AND DRYNESS SCALE Grade 0 = None Grade 1 = Minimal - barely perceptible desquamation Grade 2 = Mild - limited areas of fine desquamation in up to 1/3 of the treatment area Grade 3 = Moderate - fine desquamation involving 1/3 to 2/3 of the treatment area or limited areas of coarser scaling Grade 4 = Severe - coarser scaling involving more than 2/3 of the treatment area or limited areas of very coarse scaling

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=47 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=46 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Scaling and Dryness at Baseline
Grade 1 - Minimal
16 participants
19 participants
17 participants
15 participants
21 participants
Scaling and Dryness at Baseline
Grade 2 - Mild
6 participants
5 participants
4 participants
2 participants
6 participants
Scaling and Dryness at Baseline
Grade 4 - Severe
0 participants
0 participants
0 participants
0 participants
0 participants
Scaling and Dryness at Baseline
Grade 0 - None
25 participants
24 participants
26 participants
29 participants
16 participants
Scaling and Dryness at Baseline
Grade 3 - Moderate
0 participants
0 participants
0 participants
0 participants
3 participants

SECONDARY outcome

Timeframe: 24-48 hours after PDT #1

SCALING AND DRYNESS SCALE Grade 0 = None Grade 1 = Minimal - barely perceptible desquamation Grade 2 = Mild - limited areas of fine desquamation in up to 1/3 of the treatment area Grade 3 = Moderate - fine desquamation involving 1/3 to 2/3 of the treatment area or limited areas of coarser scaling Grade 4 = Severe - coarser scaling involving more than 2/3 of the treatment area or limited areas of very coarse scaling

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=47 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=46 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Scaling and Dryness at Visit 2
Grade 1 - Minimal
13 participants
16 participants
15 participants
23 participants
22 participants
Scaling and Dryness at Visit 2
Grade 2 - Mild
10 participants
8 participants
4 participants
6 participants
6 participants
Scaling and Dryness at Visit 2
Grade 4 - Severe
0 participants
0 participants
1 participants
0 participants
0 participants
Scaling and Dryness at Visit 2
Grade 0 - None
19 participants
20 participants
22 participants
17 participants
18 participants
Scaling and Dryness at Visit 2
Grade 3 - Moderate
5 participants
4 participants
5 participants
0 participants
0 participants

SECONDARY outcome

Timeframe: Week 2

SCALING AND DRYNESS SCALE Grade 0 = None Grade 1 = Minimal - barely perceptible desquamation Grade 2 = Mild - limited areas of fine desquamation in up to 1/3 of the treatment area Grade 3 = Moderate - fine desquamation involving 1/3 to 2/3 of the treatment area or limited areas of coarser scaling Grade 4 = Severe - coarser scaling involving more than 2/3 of the treatment area or limited areas of very coarse scaling

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=47 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=46 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Scaling and Dryness at Visit 3
Grade 0 - None
22 participants
21 participants
20 participants
27 participants
19 participants
Scaling and Dryness at Visit 3
Grade 1 - Minimal
17 participants
15 participants
16 participants
16 participants
20 participants
Scaling and Dryness at Visit 3
Grade 2 - Mild
7 participants
8 participants
8 participants
3 participants
6 participants
Scaling and Dryness at Visit 3
Grade 3 - Moderate
1 participants
3 participants
3 participants
0 participants
0 participants
Scaling and Dryness at Visit 3
Grade 4 - Severe
0 participants
1 participants
0 participants
0 participants
0 participants

SECONDARY outcome

Timeframe: Week 4

Population: Number of participants analyzed reflects ITT analysis of Tolerability Data, with no imputation techniques for missing data.

SCALING AND DRYNESS SCALE Grade 0 = None Grade 1 = Minimal - barely perceptible desquamation Grade 2 = Mild - limited areas of fine desquamation in up to 1/3 of the treatment area Grade 3 = Moderate - fine desquamation involving 1/3 to 2/3 of the treatment area or limited areas of coarser scaling Grade 4 = Severe - coarser scaling involving more than 2/3 of the treatment area or limited areas of very coarse scaling

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=46 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=45 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Scaling and Dryness at Visit 4
Grade 1 - Minimal
19 participants
18 participants
17 participants
14 participants
22 participants
Scaling and Dryness at Visit 4
Grade 3 - Moderate
1 participants
0 participants
1 participants
0 participants
1 participants
Scaling and Dryness at Visit 4
Grade 4 - Severe
0 participants
0 participants
0 participants
0 participants
0 participants
Scaling and Dryness at Visit 4
Grade 0 - None
24 participants
24 participants
27 participants
28 participants
18 participants
Scaling and Dryness at Visit 4
Grade 2 - Mild
3 participants
6 participants
1 participants
4 participants
4 participants

SECONDARY outcome

Timeframe: Week 8

Population: Number of participants analyzed reflects ITT analysis of Tolerability Data, with no imputation techniques for missing data.

SCALING AND DRYNESS SCALE Grade 0 = None Grade 1 = Minimal - barely perceptible desquamation Grade 2 = Mild - limited areas of fine desquamation in up to 1/3 of the treatment area Grade 3 = Moderate - fine desquamation involving 1/3 to 2/3 of the treatment area or limited areas of coarser scaling Grade 4 = Severe - coarser scaling involving more than 2/3 of the treatment area or limited areas of very coarse scaling

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=45 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=44 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Scaling and Dryness at Visit 5
Grade 0 - None
23 participants
30 participants
31 participants
31 participants
17 participants
Scaling and Dryness at Visit 5
Grade 1 - Minimal
21 participants
16 participants
11 participants
13 participants
18 participants
Scaling and Dryness at Visit 5
Grade 2 - Mild
3 participants
2 participants
3 participants
2 participants
9 participants
Scaling and Dryness at Visit 5
Grade 3 - Moderate
0 participants
0 participants
0 participants
0 participants
0 participants
Scaling and Dryness at Visit 5
Grade 4 - Severe
0 participants
0 participants
0 participants
0 participants
0 participants

SECONDARY outcome

Timeframe: Week 12

Population: Number of participants analyzed reflects ITT analysis of Tolerability Data, with no imputation techniques for missing data.

SCALING AND DRYNESS SCALE Grade 0 = None Grade 1 = Minimal - barely perceptible desquamation Grade 2 = Mild - limited areas of fine desquamation in up to 1/3 of the treatment area Grade 3 = Moderate - fine desquamation involving 1/3 to 2/3 of the treatment area or limited areas of coarser scaling Grade 4 = Severe - coarser scaling involving more than 2/3 of the treatment area or limited areas of very coarse scaling

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=44 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=44 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Scaling and Dryness at Visit 6
Grade 1 - Minimal
13 participants
12 participants
13 participants
11 participants
17 participants
Scaling and Dryness at Visit 6
Grade 2 - Mild
2 participants
2 participants
0 participants
2 participants
4 participants
Scaling and Dryness at Visit 6
Grade 3 - Moderate
0 participants
0 participants
1 participants
0 participants
0 participants
Scaling and Dryness at Visit 6
Grade 4 - Severe
0 participants
0 participants
0 participants
0 participants
0 participants
Scaling and Dryness at Visit 6
Grade 0 - None
32 participants
34 participants
30 participants
33 participants
23 participants

SECONDARY outcome

Timeframe: Week 24

Population: Number of participants analyzed reflects ITT analysis of Tolerability Data, with no imputation techniques for missing data.

SCALING AND DRYNESS SCALE Grade 0 = None Grade 1 = Minimal - barely perceptible desquamation Grade 2 = Mild - limited areas of fine desquamation in up to 1/3 of the treatment area Grade 3 = Moderate - fine desquamation involving 1/3 to 2/3 of the treatment area or limited areas of coarser scaling Grade 4 = Severe - coarser scaling involving more than 2/3 of the treatment area or limited areas of very coarse scaling

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=44 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=46 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Scaling and Dryness at Visit 7
Grade 0 - None
31 participants
26 participants
32 participants
37 participants
28 participants
Scaling and Dryness at Visit 7
Grade 2 - Mild
3 participants
0 participants
1 participants
1 participants
5 participants
Scaling and Dryness at Visit 7
Grade 3 - Moderate
0 participants
0 participants
0 participants
0 participants
1 participants
Scaling and Dryness at Visit 7
Grade 4 - Severe
0 participants
0 participants
0 participants
0 participants
0 participants
Scaling and Dryness at Visit 7
Grade 1 - Minimal
13 participants
22 participants
11 participants
8 participants
12 participants

SECONDARY outcome

Timeframe: Baseline

OOZING/VESICULATION/CRUSTING Grade 0 = None Grade 1 = Minimal - a single area of oozing, vesiculation or crusting 3 mm diameter or less in size Grade 2 = Mild - two to four areas of oozing, vesiculation or crusting 3 mm diameter or less in size OR a single area larger than 3 mm diameter in size Grade 3 = Moderate - more than a single area of oozing, vesiculation or crusting larger than 3 mm diameter in size or more than four areas of 3 mm diameter or less in size Grade 4 = Severe - any degree of oozing, vesiculation or crusting greater than (3) above

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=47 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=46 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Oozing/Vesiculation/Crusting at Baseline
Grade 0 - None
45 participants
47 participants
46 participants
43 participants
44 participants
Oozing/Vesiculation/Crusting at Baseline
Grade 1 - Minimal
1 participants
0 participants
1 participants
3 participants
1 participants
Oozing/Vesiculation/Crusting at Baseline
Grade 2 - Mild
1 participants
1 participants
0 participants
0 participants
1 participants
Oozing/Vesiculation/Crusting at Baseline
Grade 3 - Moderate
0 participants
0 participants
0 participants
0 participants
0 participants

SECONDARY outcome

Timeframe: 24-48 hours after PDT #1

OOZING/VESICULATION/CRUSTING Grade 0 = None Grade 1 = Minimal - a single area of oozing, vesiculation or crusting 3 mm diameter or less in size Grade 2 = Mild - two to four areas of oozing, vesiculation or crusting 3 mm diameter or less in size OR a single area larger than 3 mm diameter in size Grade 3 = Moderate - more than a single area of oozing, vesiculation or crusting larger than 3 mm diameter in size or more than four areas of 3 mm diameter or less in size Grade 4 = Severe - any degree of oozing, vesiculation or crusting greater than (3) above

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=47 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=46 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Oozing/Vesiculation/Crusting at Visit 2
Grade 0 - None
43 participants
39 participants
34 participants
34 participants
43 participants
Oozing/Vesiculation/Crusting at Visit 2
Grade 1 - Minimal
2 participants
4 participants
5 participants
9 participants
2 participants
Oozing/Vesiculation/Crusting at Visit 2
Grade 2 - Mild
2 participants
4 participants
4 participants
2 participants
1 participants
Oozing/Vesiculation/Crusting at Visit 2
Grade 3 - Moderate
0 participants
1 participants
4 participants
1 participants
0 participants
Oozing/Vesiculation/Crusting at Visit 2
Grade 4 - Severe
0 participants
0 participants
0 participants
0 participants
0 participants

SECONDARY outcome

Timeframe: Week 2

Population: Number of participants analyzed reflects ITT analysis of Tolerability Data, with no imputation techniques for missing data.

OOZING/VESICULATION/CRUSTING Grade 0 = None Grade 1 = Minimal - a single area of oozing, vesiculation or crusting 3 mm diameter or less in size Grade 2 = Mild - two to four areas of oozing, vesiculation or crusting 3 mm diameter or less in size OR a single area larger than 3 mm diameter in size Grade 3 = Moderate - more than a single area of oozing, vesiculation or crusting larger than 3 mm diameter in size or more than four areas of 3 mm diameter or less in size Grade 4 = Severe - any degree of oozing, vesiculation or crusting greater than (3) above

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=47 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=45 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Oozing/Vesiculation/Crusting at Visit 3
Grade 2 - Mild
1 participants
1 participants
1 participants
1 participants
0 participants
Oozing/Vesiculation/Crusting at Visit 3
Grade 0 - None
45 participants
42 participants
45 participants
45 participants
45 participants
Oozing/Vesiculation/Crusting at Visit 3
Grade 1 - Minimal
1 participants
5 participants
1 participants
0 participants
0 participants
Oozing/Vesiculation/Crusting at Visit 3
Grade 3 - Moderate
0 participants
0 participants
0 participants
0 participants
0 participants

SECONDARY outcome

Timeframe: Week 4

Population: Number of participants analyzed reflects ITT analysis of Tolerability Data, with no imputation techniques for missing data.

OOZING/VESICULATION/CRUSTING Grade 0 = None Grade 1 = Minimal - a single area of oozing, vesiculation or crusting 3 mm diameter or less in size Grade 2 = Mild - two to four areas of oozing, vesiculation or crusting 3 mm diameter or less in size OR a single area larger than 3 mm diameter in size Grade 3 = Moderate - more than a single area of oozing, vesiculation or crusting larger than 3 mm diameter in size or more than four areas of 3 mm diameter or less in size Grade 4 = Severe - any degree of oozing, vesiculation or crusting greater than (3) above

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=46 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=45 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Oozing/Vesiculation/Crusting at Visit 4
Grade 0 - None
46 participants
45 participants
46 participants
46 participants
45 participants
Oozing/Vesiculation/Crusting at Visit 4
Grade 3 - Moderate
0 participants
0 participants
0 participants
0 participants
0 participants
Oozing/Vesiculation/Crusting at Visit 4
Grade 1 - Minimal
1 participants
3 participants
0 participants
0 participants
0 participants
Oozing/Vesiculation/Crusting at Visit 4
Grade 2 - Mild
0 participants
0 participants
0 participants
0 participants
0 participants

SECONDARY outcome

Timeframe: Week 8

Population: Number of participants analyzed reflects ITT analysis of Tolerability Data, with no imputation techniques for missing data.

OOZING/VESICULATION/CRUSTING Grade 0 = None Grade 1 = Minimal - a single area of oozing, vesiculation or crusting 3 mm diameter or less in size Grade 2 = Mild - two to four areas of oozing, vesiculation or crusting 3 mm diameter or less in size OR a single area larger than 3 mm diameter in size Grade 3 = Moderate - more than a single area of oozing, vesiculation or crusting larger than 3 mm diameter in size or more than four areas of 3 mm diameter or less in size Grade 4 = Severe - any degree of oozing, vesiculation or crusting greater than (3) above

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=45 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=44 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Oozing/Vesiculation/Crusting at Visit 5
Grade 0 - None
47 participants
47 participants
45 participants
44 participants
42 participants
Oozing/Vesiculation/Crusting at Visit 5
Grade 1 - Minimal
0 participants
1 participants
0 participants
2 participants
1 participants
Oozing/Vesiculation/Crusting at Visit 5
Grade 2 - Mild
0 participants
0 participants
0 participants
0 participants
0 participants
Oozing/Vesiculation/Crusting at Visit 5
Grade 3 - Moderate
0 participants
0 participants
0 participants
0 participants
1 participants

SECONDARY outcome

Timeframe: Week 12

Population: Number of participants analyzed reflects ITT analysis of Tolerability Data, with no imputation techniques for missing data.

OOZING/VESICULATION/CRUSTING Grade 0 = None Grade 1 = Minimal - a single area of oozing, vesiculation or crusting 3 mm diameter or less in size Grade 2 = Mild - two to four areas of oozing, vesiculation or crusting 3 mm diameter or less in size OR a single area larger than 3 mm diameter in size Grade 3 = Moderate - more than a single area of oozing, vesiculation or crusting larger than 3 mm diameter in size or more than four areas of 3 mm diameter or less in size Grade 4 = Severe - any degree of oozing, vesiculation or crusting greater than (3) above

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=44 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=44 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Oozing/Vesiculation/Crusting at Visit 6
Grade 0 - None
46 participants
48 participants
44 participants
46 participants
44 participants
Oozing/Vesiculation/Crusting at Visit 6
Grade 1 - Minimal
1 participants
0 participants
0 participants
0 participants
0 participants
Oozing/Vesiculation/Crusting at Visit 6
Grade 2 - Mild
0 participants
0 participants
0 participants
0 participants
0 participants
Oozing/Vesiculation/Crusting at Visit 6
Grade 3 - Moderate
0 participants
0 participants
0 participants
0 participants
0 participants

SECONDARY outcome

Timeframe: Week 24

Population: Number of participants analyzed reflects ITT analysis of Tolerability Data, with no imputation techniques for missing data.

OOZING/VESICULATION/CRUSTING Grade 0 = None Grade 1 = Minimal - a single area of oozing, vesiculation or crusting 3 mm diameter or less in size Grade 2 = Mild - two to four areas of oozing, vesiculation or crusting 3 mm diameter or less in size OR a single area larger than 3 mm diameter in size Grade 3 = Moderate - more than a single area of oozing, vesiculation or crusting larger than 3 mm diameter in size or more than four areas of 3 mm diameter or less in size Grade 4 = Severe - any degree of oozing, vesiculation or crusting greater than (3) above

Outcome measures

Outcome measures
Measure
Broad Area ALA 1-hour + BLUE Light Treatment
n=47 Participants
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 2-hour + BLUE Light Treatment
n=48 Participants
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Broad Area ALA 3-hour + BLUE Light Treatment
n=44 Participants
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Spot ALA 2-hour + BLUE Light Treatment
n=46 Participants
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation, prior to BLUE light treatment at Visits 1 and 5.
Vehicle + BLUE Light Treatment
n=46 Participants
VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment at Visits 1 and 5.. Subjects receiving VEH were considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group was randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH were considered a single treatment group.
Oozing/Vesiculation/Crusting at Visit 7
Grade 2 - Mild
0 participants
0 participants
0 participants
0 participants
0 participants
Oozing/Vesiculation/Crusting at Visit 7
Grade 0 - None
47 participants
48 participants
44 participants
45 participants
46 participants
Oozing/Vesiculation/Crusting at Visit 7
Grade 1 - Minimal
0 participants
0 participants
0 participants
1 participants
0 participants
Oozing/Vesiculation/Crusting at Visit 7
Grade 3 - Moderate
0 participants
0 participants
0 participants
0 participants
0 participants

Adverse Events

Broad Area ALA 1-hour

Serious events: 5 serious events
Other events: 0 other events
Deaths: 0 deaths

Broad Area ALA 2-hour

Serious events: 1 serious events
Other events: 1 other events
Deaths: 0 deaths

Broad Area ALA 3-hour

Serious events: 3 serious events
Other events: 1 other events
Deaths: 0 deaths

Spot ALA 2-hour

Serious events: 2 serious events
Other events: 4 other events
Deaths: 0 deaths

Vehicle PDT

Serious events: 2 serious events
Other events: 4 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Broad Area ALA 1-hour
n=48 participants at risk
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation
Broad Area ALA 2-hour
n=48 participants at risk
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation
Broad Area ALA 3-hour
n=47 participants at risk
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation
Spot ALA 2-hour
n=46 participants at risk
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation
Vehicle PDT
n=46 participants at risk
VEH group will be randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH will be considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group will be randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH will be considered a single treatment group.
Renal and urinary disorders
Kidney stone
2.1%
1/48 • Number of events 1
0.00%
0/48
0.00%
0/47
0.00%
0/46
0.00%
0/46
Nervous system disorders
transient ischemic attack
2.1%
1/48 • Number of events 1
0.00%
0/48
0.00%
0/47
0.00%
0/46
0.00%
0/46
Infections and infestations
community-acquired pneumonia
2.1%
1/48 • Number of events 1
0.00%
0/48
0.00%
0/47
0.00%
0/46
0.00%
0/46
Vascular disorders
deep vein thrombosis
2.1%
1/48 • Number of events 1
0.00%
0/48
0.00%
0/47
0.00%
0/46
0.00%
0/46
Respiratory, thoracic and mediastinal disorders
pulmonary emboli
2.1%
1/48 • Number of events 2
0.00%
0/48
0.00%
0/47
0.00%
0/46
0.00%
0/46
Infections and infestations
upper respiratory infection
2.1%
1/48 • Number of events 1
0.00%
0/48
0.00%
0/47
0.00%
0/46
0.00%
0/46
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
leukemia
0.00%
0/48
2.1%
1/48 • Number of events 1
0.00%
0/47
0.00%
0/46
0.00%
0/46
Respiratory, thoracic and mediastinal disorders
pneumothorax
0.00%
0/48
2.1%
1/48 • Number of events 1
2.1%
1/47 • Number of events 1
0.00%
0/46
0.00%
0/46
Respiratory, thoracic and mediastinal disorders
pleural effusion
0.00%
0/48
2.1%
1/48 • Number of events 1
0.00%
0/47
0.00%
0/46
0.00%
0/46
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
lung cancer
0.00%
0/48
0.00%
0/48
2.1%
1/47 • Number of events 1
0.00%
0/46
0.00%
0/46
Gastrointestinal disorders
gastrointestinal bleed
0.00%
0/48
0.00%
0/48
2.1%
1/47 • Number of events 1
0.00%
0/46
0.00%
0/46
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
renal cell carcinoma
0.00%
0/48
0.00%
0/48
2.1%
1/47 • Number of events 1
0.00%
0/46
0.00%
0/46
Nervous system disorders
stroke
0.00%
0/48
0.00%
0/48
0.00%
0/47
2.2%
1/46 • Number of events 1
0.00%
0/46
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
prostate cancer
0.00%
0/48
0.00%
0/48
0.00%
0/47
2.2%
1/46 • Number of events 1
0.00%
0/46
Gastrointestinal disorders
small bowel obstruction
0.00%
0/48
0.00%
0/48
0.00%
0/47
0.00%
0/46
2.2%
1/46 • Number of events 1
Cardiac disorders
exacerbation of atrial fibrillation
0.00%
0/48
0.00%
0/48
0.00%
0/47
0.00%
0/46
2.2%
1/46 • Number of events 1
Surgical and medical procedures
splenectomy
0.00%
0/48
0.00%
0/48
0.00%
0/47
0.00%
0/46
2.2%
1/46 • Number of events 1

Other adverse events

Other adverse events
Measure
Broad Area ALA 1-hour
n=48 participants at risk
Broad Area ALA 1-hour incubation : 20% ALA, broad area, 1 hour incubation
Broad Area ALA 2-hour
n=48 participants at risk
Broad Area ALA 2-hr incubation : 20% ALA broad area 2-hour incubation
Broad Area ALA 3-hour
n=47 participants at risk
broad area ALA 3-hour incubation : 20% ALA broad area 3 hour incubation
Spot ALA 2-hour
n=46 participants at risk
Spot application ALA 2 hour incubation : 20% ALA spot application 2 hour incubation
Vehicle PDT
n=46 participants at risk
VEH group will be randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH will be considered a single treatment group. Vehicle PDT : Levulan Kerastick containing vehicle ingredients only.VEH group will be randomized (1:1:1:1) to be balanced for the four active groups; broad area application for 1, 2 or 3 hours or spot application for 2 hours prior to BLUE light treatment. Subjects receiving VEH will be considered a single treatment group.
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
squamous cell carcinoma of skin
0.00%
0/48
2.1%
1/48 • Number of events 1
2.1%
1/47 • Number of events 1
8.7%
4/46 • Number of events 4
8.7%
4/46 • Number of events 5

Additional Information

Manager of Clinical Studies

DUSA Pharmaceuticals, Inc

Results disclosure agreements

  • Principal investigator is a sponsor employee The first publication of results from multi-center trial will be made by the Sponsor. If publication is not submitted within 12 months after conclusion of the study, the PI may publish the results from the site individually, subject to compliance with the other terms of the clinical trial agreement, including a requirement that the PI provide a draft of the publication for the sponsor's review 60 days before publication so that sponsor can review the publication for confidential information.
  • Publication restrictions are in place

Restriction type: OTHER