Trial Outcomes & Findings for Excimer Light Treatment for Idiopathic Guttate Hypomelanosis: A Pilot Study (NCT NCT01956435)

NCT ID: NCT01956435

Last Updated: 2017-12-02

Results Overview

Effectiveness will be graded by the blinded observer scal via photographic comparisons at the end of the study. Efficacy was assessed by improvement from baseline using the following scale: -1 = Worsening of IGH; 0 = No Improvement (IGH remained stable); 1 = Mild improvement of IGH (some re-pigmentation on \<50% IGH); 2 = Moderate improvement (some re-pigmentation on \>50% or full re-pigmentation on \<75% IGH); 3 = Full re-pigmentation on \>75% IGH.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

6 participants

Primary outcome timeframe

12 weeks

Results posted on

2017-12-02

Participant Flow

Participant milestones

Participant milestones
Measure
Excimer Light Treatment Right Leg, Control Left Leg
Excimer light treatment will be performed on patients randomized to receive treatment on the right leg and left leg will be untreated control
Excimer Light Treatment Left Leg, Control Right Leg
Excimer light treatment will be performed on patients randomized to receive treatment on the left leg and right leg will be untreated control
Overall Study
STARTED
3
3
Overall Study
COMPLETED
3
3
Overall Study
NOT COMPLETED
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Excimer Light Treatment for Idiopathic Guttate Hypomelanosis: A Pilot Study

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
All Participants
n=6 Participants
All Study Participants
Age, Categorical
<=18 years
0 Participants
n=5 Participants
Age, Categorical
Between 18 and 65 years
6 Participants
n=5 Participants
Age, Categorical
>=65 years
0 Participants
n=5 Participants
Sex: Female, Male
Female
6 Participants
n=5 Participants
Sex: Female, Male
Male
0 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
Race (NIH/OMB)
Asian
0 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
1 Participants
n=5 Participants
Race (NIH/OMB)
White
5 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
Region of Enrollment
United States
6 participants
n=5 Participants

PRIMARY outcome

Timeframe: 12 weeks

Population: healthy adult patients with bilateral IGH lesions on lower extremities

Effectiveness will be graded by the blinded observer scal via photographic comparisons at the end of the study. Efficacy was assessed by improvement from baseline using the following scale: -1 = Worsening of IGH; 0 = No Improvement (IGH remained stable); 1 = Mild improvement of IGH (some re-pigmentation on \<50% IGH); 2 = Moderate improvement (some re-pigmentation on \>50% or full re-pigmentation on \<75% IGH); 3 = Full re-pigmentation on \>75% IGH.

Outcome measures

Outcome measures
Measure
Excimer Light Treatment
n=6 Participants
Lesions treated with excimer light
Control
n=6 Participants
Lesions not treated with excimer light
Efficacy Outcome
2.31 units on a scale
Interval 2.08 to 2.54
1.15 units on a scale
Interval 0.92 to 1.39

SECONDARY outcome

Timeframe: 12 weeks

Population: healthy adult patients with bilateral IGH lesions on lower extremities

Subject reported level of re-pigmentation for treated lesions was assessed by improvement from baseline using a scale from 1 - 4 with 1 being the least amount of re-pigmentation and 4 being the most re-pigmentation: 1 = Worsening of the light spots that were treated (the light spots seem to have gotten lighter or I have more light spots in the areas that were treated); 2 = No Improvement of the light spots (light spots have not changed since starting this study); 3 = Mild improvement of the light spots (there is some darkening of the light spots, but not in more than half of them); 4 = Moderate improvement (there is some darkening of the light spots in more than half of the light spots, but not more than 75% of them).

Outcome measures

Outcome measures
Measure
Excimer Light Treatment
n=6 Participants
Lesions treated with excimer light
Control
Lesions not treated with excimer light
Subject Self-reported Assessment of Re-pigmentation for Treated Lesions
4.5 units on a scale
Standard Deviation 0.223

Adverse Events

Excimer Light Treatment

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

Control

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

Serious adverse events

Adverse event data not reported

Other adverse events

Adverse event data not reported

Additional Information

Ammar Ahmed, MD

University of Texas at Austin Medical School and Seton Family of Hospitals

Phone: 512-504-0855

Results disclosure agreements

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