The purpose of this study was to assess whether the topical use of SD-101 cream (3% or 6%) was effective in treating wounds in participants with Simplex, Recessive Dystrophic, or Junctional non-Herlitz Epidermolysis Bullosa (EB).
This was a Phase 2b, multi-center, randomized, double-blind, vehicle-controlled study to assess the efficacy and safety of SD-101 dermal cream (3% or 6%) on skin lesions in participants with Simplex, Recessive Dystrophic, or Junctional non-Herlitz EB. SD-101 cream \[containing 3% or 6% or vehicle (0%)\] was applied topically, once a day to the entire body for a period of 90 days. Eligible participants had a target wound assessed at baseline. Selected target wound had to be at least a certain age and within a prespecified size range at study entry. Photographic confirmation of the target wound location was collected at baseline, and the picture saved from the first visit was used to confirm location of the target wound at subsequent visits. The participant returned to the study site at Week 2, Month 1, Month 4, and Month 5 (at 14, 30, 60, and 90 days, respectively) to have the target wound previously identified at baseline re-assessed for the level of healing. In addition, changes in itching, pain, body surface area coverage of blisters and lesions, and scaring of the healed target wound were also assessed at each visit.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Enrollment
48
SD-101 is a white, crystalline powder that is formulated within an odorless, soft, white cream base. SD-101-3.0 cream contains allantoin, a diureide glyoxylic acid, at a concentration of 3% and other excipients.
SD-101 is a white, crystalline powder that is formulated within an odorless, soft, white cream base. SD-101-6.0 cream contains allantoin, a diureide glyoxylic acid, at a concentration of 6% and other excipients.
A white, crystalline powder that is formulated within an odorless, soft, white cream base. It contains no allantoin, only excipients.
Unnamed facility
Palo Alto, California, United States
Unnamed facility
Chicago, Illinois, United States
Unnamed facility
St Louis, Missouri, United States
Unnamed facility
Hackensack, New Jersey, United States
Participants With Documented Complete Closure Of The Target Wound Within 1 Month After Initiation Of Treatment
The ARANZ SilhouetteStar™, a wound imaging, measurement, and documentation system providing accurate wound assessment, was used to measure the target wound at all visits. Information captured included photographic images, quantitative measures, and other target wound assessment data input to the device by the clinician, all obtained with no contact to the participant's skin. Information about the target wound's measurement history was available on this system so that the serial progression of the target wound status could also be calculated and presented.
Time frame: Baseline to 1 Month
Participants With Documented Complete Closure Of The Target Wound Within 2 And 3 Months After Initiation Of Treatment
The ARANZ SilhouetteStar™, a wound imaging, measurement, and documentation system providing accurate wound assessment, was used to measure the target wound at all visits. Information captured included photographic images, quantitative measures, and other target wound assessment data input to the device by the clinician, all obtained with no contact to the participant's skin. Information about the target wound's measurement history was available on this system so that the serial progression of the target wound status could also be calculated and presented.
Time frame: Baseline to Month 2 and Month 3
Percentage Change From Baseline In Lesional Skin Based On Body Surface Area Index (BSAI) Measurements At Month 3
The BSAI is a global measure of disease "spread" with weighting factors. Lesional skin consisted of area(s) that could contain any of the following: blisters, bullae, erosions, ulcerations, scabbing and eschars, as well as areas that are weeping, sloughing, oozing, crusted and denuded. The percentage, ranging from 0% to 100%, of affected body surface area was recorded for each defined body region (head/neck, upper limbs, trunk \[includes groin\], and lower limbs), multiplied by the weighting factor, and then summed for all body regions to calculate the BSAI. The BSAI affected with blisters and wounds was calculated at baseline and Month 3 to assess the total affected area. Percentage change from baseline was calculated as follows: Percentage change from baseline = 100\*(Post-baseline value minus Baseline value) divided by Baseline value. Mean percentage change from baseline in BSAI is reported. Only participants with data available for analysis at the specified time point are presented.
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Unnamed facility
Chapel Hill, North Carolina, United States
Unnamed facility
San Antonio, Texas, United States
Unnamed facility
Seattle, Washington, United States
Time frame: Baseline, Month 3
Participants Experiencing A Change From Baseline In Itching At Day 7
The Itch Man Pruritus Assessment Tool was used to measure the intensity of itching. Itching was assessed and reported at Baseline and Day 7. For participants 6 months to 5 years of age, itching was assessed using the caretaker's response, while in participants 6 years and older, itching was self-reported.
Time frame: Baseline, Day 7
Change From Baseline In Pain At Day 7
Pain was assessed at Baseline and Day 7. The presence and intensity of pain was assessed using the Face, Legs, Activity, Cry, Consolability (FLACC) Pain Scale for participants 6 months to 3 years of age. For participants aged 4 years and older, the Wong Faces Pain Scale was used. Scores were attributed for each of the 5 categories in the FLACC scale from 0 to 2, which resulted in a total score between 0 and 10. The Wong Faces Pain scale used 1 item to rate pain on a 0 to 10 scale. Higher score values indicated more pain.
Time frame: Baseline, Day 7
Participants With Scarring At Week 2, Month 1, Month 2, And Month 3
In the event of a healed wound, where complete closure was confirmed, the extent of scarring was assessed as "Present" or "Absent" at all post-baseline visits (Week 2 and Months 1, 2, and 3).
Time frame: Week 2, Month 1, Month 2, and Month 3