Trial Outcomes & Findings for A Safety and Efficacy Study of AGN-214868 in Patients With Postherpetic Neuralgia (NCT NCT01678924)

NCT ID: NCT01678924

Last Updated: 2020-01-07

Results Overview

The average pain intensity score at each week was the mean of the daily average pain intensity scores reported in the patient's eDiary during each 7-day period, starting with the day of study treatment injection. Patients used the 11-point Likert scale, with anchors at 0 = "no pain" and 10 = "pain as bad as you can imagine" Baseline was defined as the mean of the daily average pain intensity scores reported during the baseline period for the 7 days immediately prior to the treatment.

Recruitment status

TERMINATED

Study phase

PHASE2

Target enrollment

280 participants

Primary outcome timeframe

Baseline to Week 12

Results posted on

2020-01-07

Participant Flow

Participant milestones

Participant milestones
Measure
AGN 214868 130µg
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 65µg
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Overall Study
STARTED
64
63
30
123
Overall Study
COMPLETED
54
51
28
105
Overall Study
NOT COMPLETED
10
12
2
18

Reasons for withdrawal

Reasons for withdrawal
Measure
AGN 214868 130µg
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 65µg
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Overall Study
Adverse Event
1
1
0
1
Overall Study
Lack of Efficacy
7
2
0
5
Overall Study
Lost to Follow-up
0
4
0
2
Overall Study
Personal Reasons
2
2
2
7
Overall Study
Withdrawal by Subject
0
3
0
2
Overall Study
Unable to attend scheduled visits
0
0
0
1

Baseline Characteristics

A Safety and Efficacy Study of AGN-214868 in Patients With Postherpetic Neuralgia

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
AGN 214868 130µg
n=64 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 65µg
n=63 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=30 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
n=123 Participants
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Total
n=280 Participants
Total of all reporting groups
Race/Ethnicity, Customized
Other
0 Participants
n=5 Participants
1 Participants
n=7 Participants
0 Participants
n=5 Participants
1 Participants
n=4 Participants
2 Participants
n=21 Participants
Weight
84.9 kg
STANDARD_DEVIATION 19.15 • n=5 Participants
82.3 kg
STANDARD_DEVIATION 17.67 • n=7 Participants
80.0 kg
STANDARD_DEVIATION 14.48 • n=5 Participants
78.8 kg
STANDARD_DEVIATION 17.83 • n=4 Participants
81.1 kg
STANDARD_DEVIATION 17.86 • n=21 Participants
Height
169.8 cm
STANDARD_DEVIATION 10.22 • n=5 Participants
167.7 cm
STANDARD_DEVIATION 10.98 • n=7 Participants
169.1 cm
STANDARD_DEVIATION 8.91 • n=5 Participants
166.4 cm
STANDARD_DEVIATION 9.07 • n=4 Participants
167.7 cm
STANDARD_DEVIATION 9.83 • n=21 Participants
Age, Continuous
66.6 years
STANDARD_DEVIATION 10.47 • n=5 Participants
65.3 years
STANDARD_DEVIATION 12.82 • n=7 Participants
65.0 years
STANDARD_DEVIATION 11.99 • n=5 Participants
67.0 years
STANDARD_DEVIATION 8.13 • n=4 Participants
66.3 years
STANDARD_DEVIATION 10.28 • n=21 Participants
Age, Customized
18 years to less than 40 years
1 participants
n=5 Participants
3 participants
n=7 Participants
1 participants
n=5 Participants
0 participants
n=4 Participants
5 participants
n=21 Participants
Age, Customized
40 years to less than 65 years
20 participants
n=5 Participants
19 participants
n=7 Participants
12 participants
n=5 Participants
46 participants
n=4 Participants
97 participants
n=21 Participants
Age, Customized
65 years and over
43 participants
n=5 Participants
41 participants
n=7 Participants
17 participants
n=5 Participants
77 participants
n=4 Participants
178 participants
n=21 Participants
Sex/Gender, Customized
Male
37 Participants
n=5 Participants
34 Participants
n=7 Participants
13 Participants
n=5 Participants
50 Participants
n=4 Participants
134 Participants
n=21 Participants
Sex/Gender, Customized
Female
27 Participants
n=5 Participants
29 Participants
n=7 Participants
17 Participants
n=5 Participants
73 Participants
n=4 Participants
146 Participants
n=21 Participants
Race/Ethnicity, Customized
Caucasian
56 Participants
n=5 Participants
52 Participants
n=7 Participants
26 Participants
n=5 Participants
112 Participants
n=4 Participants
246 Participants
n=21 Participants
Race/Ethnicity, Customized
Black
3 Participants
n=5 Participants
4 Participants
n=7 Participants
1 Participants
n=5 Participants
7 Participants
n=4 Participants
15 Participants
n=21 Participants
Race/Ethnicity, Customized
Asian
0 Participants
n=5 Participants
2 Participants
n=7 Participants
2 Participants
n=5 Participants
1 Participants
n=4 Participants
5 Participants
n=21 Participants
Race/Ethnicity, Customized
Hispanic
5 Participants
n=5 Participants
4 Participants
n=7 Participants
1 Participants
n=5 Participants
2 Participants
n=4 Participants
12 Participants
n=21 Participants

PRIMARY outcome

Timeframe: Baseline to Week 12

Population: Two cohorts of patients with postherpetic neuralgia (PHN) were randomized to receive 1 treatment of either AGN-214868 (cohort 1: 32.5 or 65 μg; cohort 2: 130 μg) or placebo. Cohort 1 includes 154 patients from the modified intent to treat (mITT) population

The average pain intensity score at each week was the mean of the daily average pain intensity scores reported in the patient's eDiary during each 7-day period, starting with the day of study treatment injection. Patients used the 11-point Likert scale, with anchors at 0 = "no pain" and 10 = "pain as bad as you can imagine" Baseline was defined as the mean of the daily average pain intensity scores reported during the baseline period for the 7 days immediately prior to the treatment.

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=63 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=30 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
n=61 Participants
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Change From Baseline in Average Pain Intensity Score - Cohort 1
Week 1
-0.88 units on a scale
Interval -1.249 to -0.538
-1.02 units on a scale
Interval -1.38 to -0.587
-1.11 units on a scale
Interval -1.425 to -0.808
Change From Baseline in Average Pain Intensity Score - Cohort 1
Week 2
-1.33 units on a scale
Interval -1.746 to -0.968
-1.56 units on a scale
Interval -1.963 to -1.017
-1.57 units on a scale
Interval -1.97 to -1.174
Change From Baseline in Average Pain Intensity Score - Cohort 1
Week 3
-1.66 units on a scale
Interval -2.143 to -1.203
-1.93 units on a scale
Interval -2.426 to -1.227
-1.84 units on a scale
Interval -2.248 to -1.388
Change From Baseline in Average Pain Intensity Score - Cohort 1
Week 4
-1.78 units on a scale
Interval -2.277 to -1.31
-2.20 units on a scale
Interval -2.721 to -1.432
-1.98 units on a scale
Interval -2.423 to -1.482
Change From Baseline in Average Pain Intensity Score - Cohort 1
Week 5
-1.83 units on a scale
Interval -2.321 to -1.384
-2.19 units on a scale
Interval -2.675 to -1.379
-2.10 units on a scale
Interval -2.557 to -1.554
Change From Baseline in Average Pain Intensity Score - Cohort 1
Week 6
-1.97 units on a scale
Interval -2.442 to -1.495
-2.07 units on a scale
Interval -2.597 to -1.297
-2.34 units on a scale
Interval -2.755 to -1.697
Change From Baseline in Average Pain Intensity Score - Cohort 1
Week 7
-2.00 units on a scale
Interval -2.481 to -1.506
-2.08 units on a scale
Interval -2.572 to -1.328
-2.32 units on a scale
Interval -2.746 to -1.673
Change From Baseline in Average Pain Intensity Score - Cohort 1
Week 8
-2.11 units on a scale
Interval -2.591 to -1.618
-2.02 units on a scale
Interval -2.53 to -1.263
-2.40 units on a scale
Interval -2.825 to -1.745
Change From Baseline in Average Pain Intensity Score - Cohort 1
Week 9
-2.21 units on a scale
Interval -2.66 to -1.701
-2.15 units on a scale
Interval -2.682 to -1.352
-2.52 units on a scale
Interval -2.805 to -1.733
Change From Baseline in Average Pain Intensity Score - Cohort 1
Week 10
-2.28 units on a scale
Interval -2.679 to -1.674
-2.29 units on a scale
Interval -2.812 to -1.481
-2.48 units on a scale
Interval -2.743 to -1.634
Change From Baseline in Average Pain Intensity Score - Cohort 1
Week 11
-2.27 units on a scale
Interval -2.684 to -1.672
-2.46 units on a scale
Interval -2.996 to -1.57
-2.56 units on a scale
Interval -2.807 to -1.724
Change From Baseline in Average Pain Intensity Score - Cohort 1
Week 12
-2.20 units on a scale
Interval -2.626 to -1.6
-2.53 units on a scale
Interval -3.061 to -1.605
-2.65 units on a scale
Interval -2.886 to -1.783

PRIMARY outcome

Timeframe: Baseline to Week 12

Population: Two cohorts of patients with postherpetic neuralgia (PHN) were randomized to receive 1 treatment of either AGN-214868 (cohort 1: 32.5 or 65 μg; cohort 2: 130 μg) or placebo. Cohort 2 includes 125 patients from the mITT population

The average pain intensity score at each week was the mean of the daily average pain intensity scores reported in the patient's eDiary during each 7-day period, starting with the day of study treatment injection. patients used the 11-point Likert scale, with anchors at 0 = "no pain" and 10 = "pain as bad as you can imagine" Baseline was defined as the mean of the daily average pain intensity scores reported during the baseline period for the 7 days immediately prior to the treatment.

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=64 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=61 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Change From Baseline in Average Pain Intensity Score - Cohort 2
Week 1
-0.78 units on a scale
Interval -1.093 to -0.451
-0.88 units on a scale
Interval -1.19 to -0.492
Change From Baseline in Average Pain Intensity Score - Cohort 2
Week 2
-1.12 units on a scale
Interval -1.508 to -0.701
-1.37 units on a scale
Interval -1.791 to -0.799
Change From Baseline in Average Pain Intensity Score - Cohort 2
Week 3
-1.45 units on a scale
Interval -1.788 to -0.952
-1.65 units on a scale
Interval -2.064 to -1.057
Change From Baseline in Average Pain Intensity Score - Cohort 2
Week 4
-1.62 units on a scale
Interval -1.934 to -1.072
-1.90 units on a scale
Interval -2.344 to -1.269
Change From Baseline in Average Pain Intensity Score - Cohort 2
Week 5
-1.88 units on a scale
Interval -2.202 to -1.301
-1.88 units on a scale
Interval -2.366 to -1.257
Change From Baseline in Average Pain Intensity Score - Cohort 2
Week 6
-2.04 units on a scale
Interval -2.226 to -1.305
-1.90 units on a scale
Interval -2.339 to -1.235
Change From Baseline in Average Pain Intensity Score - Cohort 2
Week 7
-2.14 units on a scale
Interval -2.345 to -1.352
-1.90 units on a scale
Interval -2.352 to -1.225
Change From Baseline in Average Pain Intensity Score - Cohort 2
Week 8
-2.29 units on a scale
Interval -2.405 to -1.404
-1.96 units on a scale
Interval -2.412 to -1.27
Change From Baseline in Average Pain Intensity Score - Cohort 2
Week 9
-2.35 units on a scale
Interval -2.493 to -1.497
-2.00 units on a scale
Interval -2.457 to -1.293
Change From Baseline in Average Pain Intensity Score - Cohort 2
Week 10
-2.44 units on a scale
Interval -2.584 to -1.557
-2.04 units on a scale
Interval -2.515 to -1.311
Change From Baseline in Average Pain Intensity Score - Cohort 2
Week 11
-2.49 units on a scale
Interval -2.647 to -1.581
-2.03 units on a scale
Interval -2.489 to -1.314
Change From Baseline in Average Pain Intensity Score - Cohort 2
Week 12
-2.49 units on a scale
Interval -2.659 to -1.632
-2.03 units on a scale
Interval -2.538 to -1.354

SECONDARY outcome

Timeframe: Baseline to Week 1

Population: The total modified intent to treat (mITT) population of 279 patients, consists of all randomized patients who received treatment and at least 1 post-baseline weekly average pain intensity score. Cohort 1 includes 154 patients from the mITT population

Average Pain Intensity Score Responder is defined as a patient who had at least a 30% improvement (decrease) in average pain intensity score at each week compared with baseline

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=61 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=30 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
n=61 Participants
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Percentage of Average Pain Intensity Score Responders - Cohort 1 - Week 1
18.0 percentage of patients
33.3 percentage of patients
21.3 percentage of patients

SECONDARY outcome

Timeframe: Baseline to Week 2

Population: The total modified intent to treat (mITT) population of 279 patients, consists of all randomized patients who received treatment and at least 1 post-baseline weekly average pain intensity score. Cohort 1 includes 154 patients from the mITT population

Average Pain Intensity Score Responder is defined as a patient who had at least a 30% improvement (decrease) in average pain intensity score at each week compared with baseline

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=63 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=30 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
n=60 Participants
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Percentage of Average Pain Intensity Score Responders - Cohort 1 - Week 2
27.0 percentage of patients
40.0 percentage of patients
36.7 percentage of patients

SECONDARY outcome

Timeframe: Baseline to Week 3

Population: The total modified intent to treat (mITT) population of 279 patients, consists of all randomized patients who received treatment and at least 1 post-baseline weekly average pain intensity score. Cohort 1 includes 154 patients from the mITT population

Average Pain Intensity Score Responder is defined as a patient who had at least a 30% improvement (decrease) in average pain intensity score at each week compared with baseline

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=60 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=30 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
n=60 Participants
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Percentage of Average Pain Intensity Score Responders - Cohort 1 - Week 3
35.0 percentage of patients
50.0 percentage of patients
50.0 percentage of patients

SECONDARY outcome

Timeframe: Baseline to Week 4

Population: The total modified intent to treat (mITT) population of 279 patients, consists of all randomized patients who received treatment and at least 1 post-baseline weekly average pain intensity score. Cohort 1 includes 154 patients from the mITT population

Average Pain Intensity Score Responder is defined as a patient who had at least a 30% improvement (decrease), and in 10% increments, up to 100% improvement, in average pain intensity score at each week compared with baseline

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=61 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=30 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
n=59 Participants
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Percentage of Average Pain Intensity Score Responders - Cohort 1 - Week 4
37.7 percentage of patients
53.3 percentage of patients
50.8 percentage of patients

SECONDARY outcome

Timeframe: Baseline to Week 5

Population: The total modified intent to treat (mITT) population of 279 patients, consists of all randomized patients who received treatment and at least 1 post-baseline weekly average pain intensity score. Cohort 1 includes 154 patients from the mITT population

Average Pain Intensity Score Responder is defined as a patient who had at least a 30% improvement (decrease) in average pain intensity score at each week compared with baseline

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=59 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=30 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
n=57 Participants
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Percentage of Average Pain Intensity Score Responders - Cohort 1 - Week 5
40.7 percentage of patients
53.3 percentage of patients
52.6 percentage of patients

SECONDARY outcome

Timeframe: Baseline to Week 6

Population: The total modified intent to treat (mITT) population of 279 patients, consists of all randomized patients who received treatment and at least 1 post-baseline weekly average pain intensity score. Cohort 1 includes 154 patients from the mITT population

Average Pain Intensity Score Responder is defined as a patient who had at least a 30% improvement (decrease) in average pain intensity score at each week compared with baseline

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=58 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=30 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
n=55 Participants
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Percentage of Average Pain Intensity Score Responders - Cohort 1 - Week 6
41.4 percentage of patients
50.0 percentage of patients
54.5 percentage of patients

SECONDARY outcome

Timeframe: Baseline to Week 7

Population: The total modified intent to treat (mITT) population of 279 patients, consists of all randomized patients who received treatment and at least 1 post-baseline weekly average pain intensity score. Cohort 1 includes 154 patients from the mITT population

Average Pain Intensity Score Responder is defined as a patient who had at least a 30% improvement (decrease) in average pain intensity score at each week compared with baseline

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=60 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=30 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
n=57 Participants
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Percentage of Average Pain Intensity Score Responders - Cohort 1 - Week 7
43.3 percentage of patients
56.7 percentage of patients
50.9 percentage of patients

SECONDARY outcome

Timeframe: Baseline to Week 8

Population: The total modified intent to treat (mITT) population of 279 patients, consists of all randomized patients who received treatment and at least 1 post-baseline weekly average pain intensity score. Cohort 1 includes 154 patients from the mITT population

Average Pain Intensity Score Responder is defined as a patient who had at least a 30% improvement (decrease) in average pain intensity score at each week compared with baseline

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=58 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=30 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
n=56 Participants
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Percentage of Average Pain Intensity Score Responders - Cohort 1 - Week 8
43.1 percentage of patients
50.0 percentage of patients
55.4 percentage of patients

SECONDARY outcome

Timeframe: Baseline to Week 9

Population: The total modified intent to treat (mITT) population of 279 patients, consists of all randomized patients who received treatment and at least 1 post-baseline weekly average pain intensity score. Cohort 1 includes 154 patients from the mITT population

Average Pain Intensity Score Responder is defined as a patient who had at least a 30% improvement (decrease) in average pain intensity score at each week compared with baseline

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=55 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=27 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
n=52 Participants
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Percentage of Average Pain Intensity Score Responders - Cohort 1 - Week 9
43.6 percentage of patients
51.9 percentage of patients
51.9 percentage of patients

SECONDARY outcome

Timeframe: Baseline to Week 10

Population: The total modified intent to treat (mITT) population of 279 patients, consists of all randomized patients who received treatment and at least 1 post-baseline weekly average pain intensity score. Cohort 1 includes 154 patients from the mITT population

Average Pain Intensity Score Responder is defined as a patient who had at least a 30% improvement (decrease) in average pain intensity score at each week compared with baseline

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=56 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=28 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
n=52 Participants
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Percentage of Average Pain Intensity Score Responders - Cohort 1 - Week 10
46.4 percentage of patients
53.6 percentage of patients
55.8 percentage of patients

SECONDARY outcome

Timeframe: Baseline to Week 11

Population: The total modified intent to treat (mITT) population of 279 patients, consists of all randomized patients who received treatment and at least 1 post-baseline weekly average pain intensity score. Cohort 1 includes 154 patients from the mITT population

Average Pain Intensity Score Responder is defined as a patient who had at least a 30% improvement (decrease) in average pain intensity score at each week compared with baseline

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=53 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=28 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
n=52 Participants
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Percentage of Average Pain Intensity Score Responders - Cohort 1 - Week 11
47.2 percentage of patients
53.6 percentage of patients
59.6 percentage of patients

SECONDARY outcome

Timeframe: Baseline to Week 12

Population: The total modified intent to treat (mITT) population of 279 patients, consists of all randomized patients who received treatment and at least 1 post-baseline weekly average pain intensity score. Cohort 1 includes 154 patients from the mITT population

Average Pain Intensity Score Responder is defined as a patient who had at least a 30% improvement (decrease) in average pain intensity score at each week compared with baseline

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=50 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=27 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
n=49 Participants
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Percentage of Average Pain Intensity Score Responders - Cohort 1 - Week 12
48.0 percentage of patients
63.0 percentage of patients
63.3 percentage of patients

SECONDARY outcome

Timeframe: Baseline to Week 1

Population: The total mITT population of 279 patients, consists of all randomized patients who received treatment and at least 1 post-baseline weekly average pain intensity score. The mITT population for Cohort 2 is 125 patients

Average Pain Intensity Score Responder is defined as a patient who had at least a 30% improvement (decrease) in average pain intensity score at each week compared with baseline

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=63 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=59 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Percentage of Average Pain Intensity Score Responders - Cohort 2 - Week 1
14.3 percentage of patients
20.3 percentage of patients

SECONDARY outcome

Timeframe: Baseline to Week 2

Population: The total mITT population of 279 patients, consists of all randomized patients who received treatment and at least 1 post-baseline weekly average pain intensity score. The mITT population for Cohort 2 is 125 patients

Average Pain Intensity Score Responder is defined as a patient who had at least a 30% improvement (decrease) in average pain intensity score at each week compared with baseline

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=62 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=58 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Percentage of Average Pain Intensity Score Responders - Cohort 2 - Week 2
25.8 percentage of patients
27.6 percentage of patients

SECONDARY outcome

Timeframe: Baseline to Week 3

Population: The total mITT population of 279 patients, consists of all randomized patients who received treatment and at least 1 post-baseline weekly average pain intensity score. The mITT population for Cohort 2 is 125 patients

Average Pain Intensity Score Responder is defined as a patient who had at least a 30% improvement (decrease) in average pain intensity score at each week compared with baseline

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=59 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=58 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Percentage of Average Pain Intensity Score Responders - Cohort 2 - Week 3
30.5 percentage of patients
39.7 percentage of patients

SECONDARY outcome

Timeframe: Baseline to Week 4

Population: The total mITT population of 279 patients, consists of all randomized patients who received treatment and at least 1 post-baseline weekly average pain intensity score. The mITT population for Cohort 2 is 125 patients

Average Pain Intensity Score Responder is defined as a patient who had at least a 30% improvement (decrease) in average pain intensity score at each week compared with baseline

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=60 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=58 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Percentage of Average Pain Intensity Score Responders - Cohort 2 - Week 4
35.0 percentage of patients
43.1 percentage of patients

SECONDARY outcome

Timeframe: Baseline to Week 5

Population: The total mITT population of 279 patients, consists of all randomized patients who received treatment and at least 1 post-baseline weekly average pain intensity score. The mITT population for Cohort 2 is 125 patients

Average Pain Intensity Score Responder is defined as a patient who had at least a 30% improvement (decrease) in average pain intensity score at each week compared with baseline

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=57 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=57 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Percentage of Average Pain Intensity Score Responders - Cohort 2 - Week 5
42.1 percentage of patients
45.6 percentage of patients

SECONDARY outcome

Timeframe: Baseline to Week 6

Population: The total mITT population of 279 patients, consists of all randomized patients who received treatment and at least 1 post-baseline weekly average pain intensity score. The mITT population for Cohort 2 is 125 patients

Average Pain Intensity Score Responder is defined as a patient who had at least a 30% improvement (decrease) in average pain intensity score at each week compared with baseline

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=53 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=57 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Percentage of Average Pain Intensity Score Responders - Cohort 2 - Week 6
45.3 percentage of patients
45.6 percentage of patients

SECONDARY outcome

Timeframe: Baseline to Week 7

Population: The total mITT population of 279 patients, consists of all randomized patients who received treatment and at least 1 post-baseline weekly average pain intensity score. The mITT population for Cohort 2 is 125 patients

Average Pain Intensity Score Responder is defined as a patient who had at least a 30% improvement (decrease) in average pain intensity score at each week compared with baseline

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=50 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=56 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Percentage of Average Pain Intensity Score Responders - Cohort 2 - Week 7
50.0 percentage of patients
48.2 percentage of patients

SECONDARY outcome

Timeframe: Baseline to Week 8

Population: The total mITT population of 279 patients, consists of all randomized patients who received treatment and at least 1 post-baseline weekly average pain intensity score. The mITT population for Cohort 2 is 125 patients

Average Pain Intensity Score Responder is defined as a patient who had at least a 30% improvement (decrease) in average pain intensity score at each week compared with baseline

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=51 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=55 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Percentage of Average Pain Intensity Score Responders - Cohort 2 - Week 8
54.9 percentage of patients
49.1 percentage of patients

SECONDARY outcome

Timeframe: Baseline to Week 9

Population: The total mITT population of 279 patients, consists of all randomized patients who received treatment and at least 1 post-baseline weekly average pain intensity score. The mITT population for Cohort 2 is 125 patients

Average Pain Intensity Score Responder is defined as a patient who had at least a 30% improvement (decrease) in average pain intensity score at each week compared with baseline

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=51 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=55 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Percentage of Average Pain Intensity Score Responders - Cohort 2 - Week 9
58.8 percentage of patients
45.5 percentage of patients

SECONDARY outcome

Timeframe: Baseline to Week 10

Population: The total mITT population of 279 patients, consists of all randomized patients who received treatment and at least 1 post-baseline weekly average pain intensity score. The mITT population for Cohort 2 is 125 patients

Average Pain Intensity Score Responder is defined as a patient who had at least a 30% improvement (decrease) in average pain intensity score at each week compared with baseline

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=51 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=55 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Percentage of Average Pain Intensity Score Responders - Cohort 2 - Week 10
64.7 percentage of patients
47.3 percentage of patients

SECONDARY outcome

Timeframe: Baseline to Week 11

Population: The total mITT population of 279 patients, consists of all randomized patients who received treatment and at least 1 post-baseline weekly average pain intensity score. The mITT population for Cohort 2 is 125 patients

Average Pain Intensity Score Responder is defined as a patient who had at least a 30% improvement (decrease) in average pain intensity score at each week compared with baseline

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=50 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=54 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Percentage of Average Pain Intensity Score Responders - Cohort 2 - Week 11
64.0 percentage of patients
42.6 percentage of patients

SECONDARY outcome

Timeframe: Baseline to Week 12

Population: The total mITT population of 279 patients, consists of all randomized patients who received treatment and at least 1 post-baseline weekly average pain intensity score. The mITT population for Cohort 2 is 125 patients

Average Pain Intensity Score Responder is defined as a patient who had at least a 30% improvement (decrease) in average pain intensity score at each week compared with baseline

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=44 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=50 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Percentage of Average Pain Intensity Score Responders - Cohort 2 - Week 12
61.4 percentage of patients
40.0 percentage of patients

SECONDARY outcome

Timeframe: Baseline to Week 2

Population: The total modified intent to treat (mITT) population of 279 patients, consists of all randomized patients who received treatment and at least 1 post-baseline weekly average pain intensity score assessment. Cohort 1 includes 154 patients from the mITT population

The assessment of maximal area of spontaneous pain (MASP) was conducted by a qualified and trained investigator or designee (eg, physician, physician's assistant, nurse practitioner, and nurse). This assessment is based on color photographs taken of the patient and that the patient was asked to circle their MASP on with a black marker. Areas of pain were quantified at a central reading center.

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=61 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=27 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
n=60 Participants
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Change From Baseline in Maximal Area of Spontaneous Pain - Cohort 1 - Week 2
-25.07 Square Centimeters (cm^2)
Interval -37.544 to -13.564
-34.07 Square Centimeters (cm^2)
Interval -60.871 to -4.114
-26.10 Square Centimeters (cm^2)
Interval -38.58 to -14.053

SECONDARY outcome

Timeframe: Baseline to Week 4

Population: The total modified intent to treat (mITT) population of 279 patients, consists of all randomized patients who received treatment and at least 1 post-baseline weekly average pain intensity score assessment. Cohort 1 includes 154 patients from the mITT population

The assessment of maximal area of spontaneous pain (MASP) was conducted by a qualified and trained investigator or designee (eg, physician, physician's assistant, nurse practitioner, and nurse). This assessment is based on color photographs taken of the patient in which the patient was asked to outline their MASP with a black marker. Areas of pain were quantified at a central reading center.

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=62 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=29 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
n=60 Participants
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Change From Baseline in Maximal Area of Spontaneous Pain - Cohort 1 - Week 4
-27.65 Square Centimeters (cm^2)
Interval -40.978 to -15.412
-25.96 Square Centimeters (cm^2)
Interval -49.316 to 0.309
-32.23 Square Centimeters (cm^2)
Interval -48.543 to -16.214

SECONDARY outcome

Timeframe: Baseline to Week 8

Population: The total modified intent to treat (mITT) population of 279 patients, consists of all randomized patients who received treatment and at least 1 post-baseline weekly average pain intensity score assessment. Cohort 1 includes 154 patients from the mITT population

The assessment of maximal area of spontaneous pain (MASP) was conducted by a qualified and trained investigator or designee (eg, physician, physician's assistant, nurse practitioner, and nurse). This assessment is based on color photographs taken of the patient in which the patient was asked to outline their MASP with a black marker. Areas of pain were quantified at a central reading center.

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=56 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=28 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
n=55 Participants
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Change From Baseline in Maximal Area of Spontaneous Pain - Cohort 1 - Week 8
-29.86 Square Centimeters (cm^2)
Interval -45.876 to -15.566
-37.18 Square Centimeters (cm^2)
Interval -64.825 to -1.989
-34.04 Square Centimeters (cm^2)
Interval -48.026 to -22.134

SECONDARY outcome

Timeframe: Baseline to Week 12

Population: The total modified intent to treat (mITT) population of 279 patients, consists of all randomized patients who received treatment and at least 1 post-baseline weekly average pain intensity score assessment. Cohort 1 includes 154 patients from the mITT population

The assessment of maximal area of spontaneous pain (MASP) was conducted by a qualified and trained investigator or designee (eg, physician, physician's assistant, nurse practitioner, and nurse). This assessment is based on color photographs taken of the patient in which the patient was asked to outline their MASP with a black marker. Areas of pain were quantified at a central reading center.

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=57 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=29 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
n=54 Participants
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Change From Baseline in Maximal Area of Spontaneous Pain - Cohort 1 - Week 12
-30.99 Square Centimeters (cm^2)
Interval -46.118 to -17.138
-31.40 Square Centimeters (cm^2)
Interval -61.185 to 3.853
-35.03 Square Centimeters (cm^2)
Interval -53.242 to -18.425

SECONDARY outcome

Timeframe: Baseline to Week 2

Population: The total mITT population of 279 patients, consists of all randomized patients who received treatment and at least 1 post-baseline weekly average pain intensity score assessment. The mITT population for Cohort 2 is 125 patients

The assessment of maximal area of spontaneous pain (MASP) was conducted by a qualified and trained investigator or designee (eg, physician, physician's assistant, nurse practitioner, and nurse). This assessment is based on color photographs taken of the patient in which the patient was asked to outline their MASP with a black marker. Areas of pain were quantified at a central reading center.

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=57 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=57 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Change From Baseline in Maximal Area of Spontaneous Pain - Cohort 2 - Week 2
-9.86 Square Centimeters (cm^2)
Interval -38.087 to 18.02
-27.52 Square Centimeters (cm^2)
Interval -43.841 to -10.854

SECONDARY outcome

Timeframe: Baseline to Week 4

Population: The total mITT population of 279 patients, consists of all randomized patients who received treatment and at least 1 post-baseline weekly average pain intensity score assessment. The mITT population for Cohort 2 is 125 patients.

The assessment of maximal area of spontaneous pain (MASP) was conducted by a qualified and trained investigator or designee (eg, physician, physician's assistant, nurse practitioner, and nurse). This assessment is based on color photographs taken of the patient in which the patient was asked to outline their MASP with a black marker. Areas of pain were quantified at a central reading center.

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=58 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=59 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Change From Baseline in Maximal Area of Spontaneous Pain - Cohort 2 - Week 4
-22.23 Square Centimeters (cm^2)
Interval -48.893 to 3.903
-25.67 Square Centimeters (cm^2)
Interval -42.901 to -7.909

SECONDARY outcome

Timeframe: Baseline to Week 8

Population: The total mITT population of 279 patients, consists of all randomized patients who received treatment and at least 1 post-baseline weekly average pain intensity score assessment. The mITT population for Cohort 2 is 125 patients.

The assessment of maximal area of spontaneous pain (MASP) was conducted by a qualified and trained investigator or designee (eg, physician, physician's assistant, nurse practitioner, and nurse). This assessment is based on color photographs taken of the patient in which the patient was asked to outline their MASP with a black marker. Areas of pain were quantified at a central reading center.

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=53 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=57 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Change From Baseline in Maximal Area of Spontaneous Pain - Cohort 2 - Week 8
-42.92 Square Centimeters (cm^2)
Interval -65.58 to -23.08
-31.95 Square Centimeters (cm^2)
Interval -47.299 to -13.978

SECONDARY outcome

Timeframe: Baseline to Week 12

Population: The total mITT population of 279 patients, consists of all randomized patients who received treatment and at least 1 post-baseline weekly average pain intensity score assessment. The mITT population for Cohort 2 is 125 patients.

The assessment of maximal area of spontaneous pain (MASP) was conducted by a qualified and trained investigator or designee (eg, physician, physician's assistant, nurse practitioner, and nurse). This assessment is based on color photographs taken of the patient in which the patient was asked to outline their MASP with a black marker. Areas of pain were quantified at a central reading center.

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=54 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=57 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Change From Baseline in Maximal Area of Spontaneous Pain - Cohort 2 - Week 12
-36.73 Square Centimeters (cm^2)
Interval -67.719 to -8.696
-32.60 Square Centimeters (cm^2)
Interval -49.823 to -12.574

SECONDARY outcome

Timeframe: Baseline to Week 2

Population: The total mITT population of 279 patients, consists of all randomized patients who received treatment and at least 1 post-baseline weekly average pain intensity score assessment. The mITT population for Cohort 1 is 154 patients.

The assessment of maximal area of allodynia was conducted by a qualified and trained investigator or designee (eg, physician, physician's assistant, nurse practitioner, and nurse). This assessment is based on color photographs taken of the patient in which the patient was asked to outline their maximal area of skin that feels unpleasant to the touch (allodynic skin) with a red marker. Areas of allodynia were quantified at a central reading center.

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=61 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=27 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
n=60 Participants
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Change From Baseline in Area of Allodynia - Cohort 1 - Week 2
-40.06 Square Centimeters (cm^2)
Interval -89.75 to -12.158
-14.42 Square Centimeters (cm^2)
Interval -34.431 to 23.824
-52.73 Square Centimeters (cm^2)
Interval -67.258 to -24.248

SECONDARY outcome

Timeframe: Baseline to Week 4

Population: The total mITT population of 279 patients, consists of all randomized patients who received treatment and at least 1 post-baseline weekly average pain intensity score assessment. The mITT population for Cohort 1 is 154 patients.

The assessment of maximal area of allodynia was conducted by a qualified and trained investigator or designee (eg, physician, physician's assistant, nurse practitioner, and nurse). This assessment is based on color photographs taken of the patient in which the patient was asked to outline their maximal area of skin that feels unpleasant to the touch (allodynic skin) with a red marker. Areas of allodynia were quantified at a central reading center.

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=62 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=29 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
n=60 Participants
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Change From Baseline in Area of Allodynia - Cohort 1 - Week 4
-54.12 Square Centimeters (cm^2)
Interval -118.867 to -19.566
-23.07 Square Centimeters (cm^2)
Interval -41.985 to 19.468
-58.14 Square Centimeters (cm^2)
Interval -70.452 to -26.048

SECONDARY outcome

Timeframe: Baseline to Week 8

Population: The total mITT population of 279 patients, consists of all randomized patients who received treatment and at least 1 post-baseline weekly average pain intensity score assessment. The mITT population for Cohort 1 is 154 patients.

The assessment of maximal area of allodynia was conducted by a qualified and trained investigator or designee (eg, physician, physician's assistant, nurse practitioner, and nurse). This assessment is based on color photographs taken of the patient in which the patient was asked to outline their maximal area of skin that feels unpleasant to the touch (allodynic skin) with a red marker. Areas of allodynia were quantified at a central reading center.

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=56 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=28 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
n=55 Participants
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Change From Baseline in Area of Allodynia - Cohort 1 - Week 8
-74.46 Square Centimeters (cm^2)
Interval -136.541 to -43.526
-50.47 Square Centimeters (cm^2)
Interval -75.433 to -4.124
-71.54 Square Centimeters (cm^2)
Interval -85.155 to -37.104

SECONDARY outcome

Timeframe: Baseline to Week 12

Population: The total mITT population of 279 patients, consists of all randomized patients who received treatment and at least 1 post-baseline weekly average pain intensity score assessment. The mITT population for Cohort 1 is 154 patients.

The assessment of maximal area of allodynia was conducted by a qualified and trained investigator or designee (eg, physician, physician's assistant, nurse practitioner, and nurse). This assessment is based on color photographs taken of the patient in which the patient was asked to outline their maximal area of skin that feels unpleasant to the touch (allodynic skin) with a red marker. Areas of allodynia were quantified at a central reading center.

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=57 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=29 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
n=54 Participants
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Change From Baseline in Area of Allodynia - Cohort 1 - Week 12
-67.71 Square Centimeters (cm^2)
Interval -130.695 to -35.611
-39.96 Square Centimeters (cm^2)
Interval -62.646 to 8.446
-70.46 Square Centimeters (cm^2)
Interval -92.167 to -29.97

SECONDARY outcome

Timeframe: Baseline to Week 2

Population: The total mITT population of 279 patients, consists of all randomized patients who received treatment and at least 1 post-baseline weekly average pain intensity score assessment. The mITT population for Cohort 2 is 125 patients.

The assessment of maximal area of allodynia was conducted by a qualified and trained investigator or designee (eg, physician, physician's assistant, nurse practitioner, and nurse). This assessment is based on color photographs taken of the patient in which the patient was asked to outline their maximal area of skin that feels unpleasant to the touch (allodynic skin) with a red marker. Areas of allodynia were quantified at a central reading center.

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=57 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=57 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Change From Baseline in Area of Allodynia - Cohort 2 - Week 2
-36.66 Square Centimeters (cm^2)
Interval -59.461 to -0.328
-60.71 Square Centimeters (cm^2)
Interval -98.564 to -36.369

SECONDARY outcome

Timeframe: Baseline to Week 4

Population: The total mITT population of 279 patients, consists of all randomized patients who received treatment and at least 1 post-baseline weekly average pain intensity score assessment. The mITT population for Cohort 2 is 125 patients.

The assessment of maximal area of allodynia was conducted by a qualified and trained investigator or designee (eg, physician, physician's assistant, nurse practitioner, and nurse). This assessment is based on color photographs taken of the patient in which the patient was asked to outline their maximal area of skin that feels unpleasant to the touch (allodynic skin) with a red marker. Areas of allodynia were quantified at a central reading center.

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=58 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=59 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Change From Baseline in Area of Allodynia - Cohort 2 - Week 4
-54.33 Square Centimeters (cm^2)
Interval -72.041 to -13.677
-69.39 Square Centimeters (cm^2)
Interval -116.234 to -45.112

SECONDARY outcome

Timeframe: Baseline to Week 8

Population: The total mITT population of 279 patients, consists of all randomized patients who received treatment and at least 1 post-baseline weekly average pain intensity score assessment. The mITT population for Cohort 2 is 125 patients.

The assessment of maximal area of allodynia was conducted by a qualified and trained investigator or designee (eg, physician, physician's assistant, nurse practitioner, and nurse). This assessment is based on color photographs taken of the patient in which the patient was asked to outline their maximal area of skin that feels unpleasant to the touch (allodynic skin) with a red marker. Areas of allodynia were quantified at a central reading center.

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=53 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=57 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Change From Baseline in Area of Allodynia - Cohort 2 - Week 8
-78.78 Square Centimeters (cm^2)
Interval -99.958 to -43.748
-75.58 Square Centimeters (cm^2)
Interval -113.401 to -50.634

SECONDARY outcome

Timeframe: Baseline to Week 12

Population: The total mITT population of 279 patients, consists of all randomized patients who received treatment and at least 1 post-baseline weekly average pain intensity score assessment. The mITT population for Cohort 2 is 125 patients.

The assessment of maximal area of allodynia was conducted by a qualified and trained investigator or designee (eg, physician, physician's assistant, nurse practitioner, and nurse). This assessment is based on color photographs taken of the patient in which the patient was asked to outline their maximal area of skin that feels unpleasant to the touch (allodynic skin) with a red marker. Areas of allodynia were quantified at a central reading center.

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=54 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=57 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Change From Baseline in Area of Allodynia - Cohort 2 - Week 12
-77.98 Square Centimeters (cm^2)
Interval -99.148 to -36.515
-79.99 Square Centimeters (cm^2)
Interval -129.775 to -49.428

SECONDARY outcome

Timeframe: Baseline to Week 2

Population: The total modified intent to treat (mITT) population of 279 patients, consists of all randomized patients who received treatment and at least 1 post-baseline weekly average pain intensity score assessment. Cohort 1 includes 154 patients from the mITT population.

Assessment of evoked pain were conducted by a qualified and trained investigator or designee (eg, physician, physician's assistant, nurse practitioner, and nurse). Evoked pain was scored using a visual analog scale (VAS; 0 to100 mm scale with anchors of 0 = No pain and 100 = Worst pain imaginable). The patient was asked to use the VAS to rate the unpleasantness of 3 brush strokes within the center of the area of allodynia and pain.

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=48 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=21 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
n=50 Participants
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Change From Baseline in Evoked Pain Score in the Area of Allodynia Cohort 1 - Week 2
-17.4 units on a scale
Interval -25.67 to -10.68
-21.2 units on a scale
Interval -30.01 to -10.09
-15.3 units on a scale
Interval -22.76 to -7.32

SECONDARY outcome

Timeframe: Baseline to Week 4

Population: The total modified intent to treat (mITT) population of 279 patients, consists of all randomized patients who received treatment and at least 1 post-baseline weekly average pain intensity score assessment. Cohort 1 includes 154 patients from the mITT population.

Assessment of evoked pain were conducted by a qualified and trained investigator or designee (eg, physician, physician's assistant, nurse practitioner, and nurse). Evoked pain was scored using a visual analog scale (VAS; 0 to100 mm scale with anchors of 0 = No pain and 100 = Worst pain imaginable). The patient was asked to use the VAS to rate the unpleasantness of 3 brush strokes within the center of the area of allodynia and pain.

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=50 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=25 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
n=51 Participants
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Change From Baseline in Evoked Pain Score in the Area of Allodynia Cohort 1 - Week 4
-21.9 units on a scale
Interval -29.67 to -15.57
-20.5 units on a scale
Interval -28.34 to -11.34
-12.3 units on a scale
Interval -19.02 to -5.01

SECONDARY outcome

Timeframe: Baseline to Week 8

Population: The total modified intent to treat (mITT) population of 279 patients, consists of all randomized patients who received treatment and at least 1 post-baseline weekly average pain intensity score assessment. Cohort 1 includes 154 patients from the mITT population.

Assessment of evoked pain were conducted by a qualified and trained investigator or designee (eg, physician, physician's assistant, nurse practitioner, and nurse). Evoked pain was scored using a visual analog scale (VAS; 0 to100 mm scale with anchors of 0 = No pain and 100 = Worst pain imaginable). The patient was asked to use the VAS to rate the unpleasantness of 3 brush strokes within the center of the area of allodynia and pain.

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=51 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=22 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
n=49 Participants
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Change From Baseline in Evoked Pain Score in the Area of Allodynia Cohort 1 - Week 8
-22.7 units on a scale
Interval -31.18 to -15.8
-24.8 units on a scale
Interval -34.73 to -14.45
-19.4 units on a scale
Interval -27.27 to -10.15

SECONDARY outcome

Timeframe: Baseline to Week 12

Population: The total modified intent to treat (mITT) population of 279 patients, consists of all randomized patients who received treatment and at least 1 post-baseline weekly average pain intensity score assessment. Cohort 1 includes 154 patients from the mITT population.

Assessment of evoked pain were conducted by a qualified and trained investigator or designee (eg, physician, physician's assistant, nurse practitioner, and nurse). Evoked pain was scored using a visual analog scale (VAS; 0 to100 mm scale with anchors of 0 = No pain and 100 = Worst pain imaginable). The patient was asked to use the VAS to rate the unpleasantness of 3 brush strokes within the center of the area of allodynia and pain.

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=51 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=23 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
n=46 Participants
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Change From Baseline in Evoked Pain Score in the Area of Allodynia Cohort 1 - Week 12
-19.2 units on a scale
Interval -27.51 to -12.14
-21.6 units on a scale
Interval -33.46 to -9.41
-21.5 units on a scale
Interval -28.99 to -12.79

SECONDARY outcome

Timeframe: Baseline to Week 2

Population: The total mITT population of 279 patients, consists of all randomized patients who received treatment and at least 1 post-baseline weekly average pain intensity score assessment. The mITT population for Cohort 2 is 125 patients.

Assessment of evoked pain were conducted by a qualified and trained investigator or designee (eg, physician, physician's assistant, nurse practitioner, and nurse). Evoked pain was scored using a visual analog scale (VAS; 0 to100 mm scale with anchors of 0 = No pain and 100 = Worst pain imaginable). The patient was asked to use the VAS to rate the unpleasantness of 3 brush strokes within the center of the area of allodynia and pain.

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=53 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=55 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Change From Baseline in Evoked Pain Score in the Area of Allodynia - Cohort 2 - Week 2
-19.0 units on a scale
Interval -26.102 to -11.03
-16.2 units on a scale
Interval -23.4 to -9.691

SECONDARY outcome

Timeframe: Baseline to Week 4

Population: The total mITT population of 279 patients, consists of all randomized patients who received treatment and at least 1 post-baseline weekly average pain intensity score assessment. The mITT population for Cohort 2 is 125 patients.

Assessment of evoked pain were conducted by a qualified and trained investigator or designee (eg, physician, physician's assistant, nurse practitioner, and nurse). Evoked pain was scored using a visual analog scale (VAS; 0 to100 mm scale with anchors of 0 = No pain and 100 = Worst pain imaginable). The patient was asked to use the VAS to rate the unpleasantness of 3 brush strokes within the center of the area of allodynia and pain.

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=52 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=55 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Change From Baseline in Evoked Pain Score in the Area of Allodynia - Cohort 2 - Week 4
-20.6 units on a scale
Interval -27.941 to -10.867
-20.5 units on a scale
Interval -29.487 to -13.64

SECONDARY outcome

Timeframe: Baseline to Week 8

Population: The total mITT population of 279 patients, consists of all randomized patients who received treatment and at least 1 post-baseline weekly average pain intensity score assessment. The mITT population for Cohort 2 is 125 patients.

Assessment of evoked pain were conducted by a qualified and trained investigator or designee (eg, physician, physician's assistant, nurse practitioner, and nurse). Evoked pain was scored using a visual analog scale (VAS; 0 to100 mm scale with anchors of 0 = No pain and 100 = Worst pain imaginable). The patient was asked to use the VAS to rate the unpleasantness of 3 brush strokes within the center of the area of allodynia and pain.

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=48 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=52 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Change From Baseline in Evoked Pain Score in the Area of Allodynia - Cohort 2 - Week 8
-28.7 units on a scale
Interval -35.924 to -21.285
-19.7 units on a scale
Interval -27.721 to -11.895

SECONDARY outcome

Timeframe: Baseline to Week 12

Population: The total mITT population of 279 patients, consists of all randomized patients who received treatment and at least 1 post-baseline weekly average pain intensity score assessment. The mITT population for Cohort 2 is 125 patients.

Assessment of evoked pain were conducted by a qualified and trained investigator or designee (eg, physician, physician's assistant, nurse practitioner, and nurse). Evoked pain was scored using a visual analog scale (VAS; 0 to100 mm scale with anchors of 0 = No pain and 100 = Worst pain imaginable). The patient was asked to use the VAS to rate the unpleasantness of 3 brush strokes within the center of the area of allodynia and pain.

Outcome measures

Outcome measures
Measure
AGN 214868 65µg
n=47 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=51 Participants
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Change From Baseline in Evoked Pain Score in the Area of Allodynia - Cohort 2 - Week 12
-26.9 units on a scale
Interval -37.75 to -16.548
-19.1 units on a scale
Interval -26.996 to -10.612

Adverse Events

AGN 214868 130µg

Serious events: 2 serious events
Other events: 15 other events
Deaths: 0 deaths

AGN 214868 65µg

Serious events: 8 serious events
Other events: 15 other events
Deaths: 0 deaths

AGN 214868 32.5µg

Serious events: 2 serious events
Other events: 8 other events
Deaths: 0 deaths

Placebo

Serious events: 10 serious events
Other events: 30 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
AGN 214868 130µg
n=64 participants at risk
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 65µg
n=63 participants at risk
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=30 participants at risk
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
n=123 participants at risk
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
Blood and lymphatic system disorders
Anaemia
0.00%
0/64
0.00%
0/63
0.00%
0/30
0.81%
1/123
Cardiac disorders
Atrial fibrillation
1.6%
1/64
0.00%
0/63
0.00%
0/30
0.00%
0/123
Cardiac disorders
Myocardial infarction
1.6%
1/64
0.00%
0/63
0.00%
0/30
0.00%
0/123
Cardiac disorders
Angina unstable
0.00%
0/64
1.6%
1/63
0.00%
0/30
0.00%
0/123
Gastrointestinal disorders
Gastrooesophageal reflux disease
0.00%
0/64
0.00%
0/63
0.00%
0/30
0.81%
1/123
General disorders
Oedema peripheral
0.00%
0/64
0.00%
0/63
0.00%
0/30
0.81%
1/123
Hepatobiliary disorders
Cholecystitis
0.00%
0/64
3.2%
2/63
0.00%
0/30
0.00%
0/123
Infections and infestations
Pyelonephritis
0.00%
0/64
1.6%
1/63
0.00%
0/30
0.00%
0/123
Infections and infestations
Erysipelas
0.00%
0/64
0.00%
0/63
0.00%
0/30
0.81%
1/123
Infections and infestations
Furuncle
0.00%
0/64
0.00%
0/63
0.00%
0/30
0.81%
1/123
Infections and infestations
Labyrinthitis
0.00%
0/64
0.00%
0/63
0.00%
0/30
0.81%
1/123
Injury, poisoning and procedural complications
Fractured sacrum
0.00%
0/64
0.00%
0/63
0.00%
0/30
0.81%
1/123
Injury, poisoning and procedural complications
Pubis fracture
0.00%
0/64
0.00%
0/63
0.00%
0/30
0.81%
1/123
Injury, poisoning and procedural complications
Rib fracture
0.00%
0/64
0.00%
0/63
0.00%
0/30
0.81%
1/123
Injury, poisoning and procedural complications
Urethral injury
0.00%
0/64
0.00%
0/63
0.00%
0/30
0.81%
1/123
Musculoskeletal and connective tissue disorders
Joint crepitation
0.00%
0/64
0.00%
0/63
0.00%
0/30
0.81%
1/123
Musculoskeletal and connective tissue disorders
Osteoarthritis
0.00%
0/64
0.00%
0/63
0.00%
0/30
0.81%
1/123
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Basal cell carcinoma
0.00%
0/64
1.6%
1/63
3.3%
1/30
0.00%
0/123
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Breast cancer
0.00%
0/64
1.6%
1/63
0.00%
0/30
0.81%
1/123
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Squamous cell carcinoma
0.00%
0/64
1.6%
1/63
0.00%
0/30
0.00%
0/123
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Adenocarcinoma of colon
0.00%
0/64
0.00%
0/63
3.3%
1/30
0.00%
0/123
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Malignant melanoma
0.00%
0/64
0.00%
0/63
3.3%
1/30
0.00%
0/123
Nervous system disorders
Thalamic infarction
0.00%
0/64
1.6%
1/63
0.00%
0/30
0.00%
0/123
Respiratory, thoracic and mediastinal disorders
Haemothorax
0.00%
0/64
0.00%
0/63
0.00%
0/30
0.81%
1/123
Respiratory, thoracic and mediastinal disorders
Pneumothorax
0.00%
0/64
0.00%
0/63
0.00%
0/30
0.81%
1/123
Respiratory, thoracic and mediastinal disorders
Respiratory failure
0.00%
0/64
0.00%
0/63
0.00%
0/30
0.81%
1/123
Vascular disorders
Aortic aneurysm
0.00%
0/64
1.6%
1/63
0.00%
0/30
0.81%
1/123

Other adverse events

Other adverse events
Measure
AGN 214868 130µg
n=64 participants at risk
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 65µg
n=63 participants at risk
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
AGN 214868 32.5µg
n=30 participants at risk
Single administration of AGN-214868, total dose given as injections into the area of pain on Day 1
Placebo
n=123 participants at risk
Single administration of AGN-214868 placebo, given as injections into the area of pain on Day 1
General disorders
Injection site pain
9.4%
6/64
1.6%
1/63
0.00%
0/30
4.9%
6/123
Infections and infestations
Upper respiratory tract infection
6.2%
4/64
7.9%
5/63
3.3%
1/30
6.5%
8/123
Infections and infestations
Nasopharyngitis
4.7%
3/64
7.9%
5/63
6.7%
2/30
7.3%
9/123
Nervous system disorders
Dizziness
1.6%
1/64
3.2%
2/63
10.0%
3/30
1.6%
2/123
Infections and infestations
Urinary tract infection
1.6%
1/64
3.2%
2/63
6.7%
2/30
5.7%
7/123

Additional Information

Therapeutic Area Head

Allergan plc

Phone: 714-246-4500

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place

Restriction type: OTHER