Evaluation of the Safety and Efficacy Study of RGN-137 Topical Gel for Junctional and Dystrophic Epidermolysis Bullosa

Phase 2

Terminated

• Conditions: Dystrophic Epidermolysis Bullosa; Junctional Epidermolysis Bullosa
• Interventions: Drug: Placebo; Drug: RGN-137

• Registration Number: NCT03578029
• Lead Sponsor: Lenus Therapeutics, LLC

Brief Summary

The objective of this study is to compare the efficacy and safety of RGN-137 topical gel with that of placebo gel for treatment of junctional epidermolysis bullosa (JEB) or dystrophic epidermolysis bullosa (DEB).

Detailed Description

RGN-137 will be evaluated for efficacy and safety compared to a Placebo. A matched-pair design will be used to evaluate RGN-137 treatment versus placebo for treatment of 15 subjects with JEB or DEB. Eligible subject must have 1 set of matched-pair wound. The investigator will assign pair of index wounds, each wound with an area between 5cm2 and 50cm2, inclusive, for the eligible subject on Day 1, and for each pair, one wound will be randomized to receive RGN-137 gel and the other to receive Placebo gel. Subjects and independent evaluator will be blinded to the treatment assignments for each wound.

Study Timeline

• Study First Submitted: 2018-06-14
• Study First Submitted QC: 2018-06-24
• Study First Posted: 2018-07-05
• Study Start: 2019-05-22
• Primary Completion: 2021-09-01
• Study Completion: 2021-11-23
• Status Verified: 2022-08
• Disposition First Submitted: 2022-08-18
• Disposition First Submitted QC: 2022-08-18
• Last Update Submitted: 2022-08-18
• Disposition First Posted: 2022-08-22
• Last Update Posted: 2022-08-22

Recruitment & Eligibility

• Status: TERMINATED
• Sex: All
• Target Recruitment: 4

Inclusion Criteria

• Male or female and at least 4 years old with a diagnosis of DEB or JEB

• Patients and their parents or guardians must be willing and able to provide written informed consent/assent

• Presence of 1 pair of stable index wounds within the specified size range at study

  1. Index wounds must have a surface area between 5 cm2 and 50 cm2, inclusive at the screening visit
  2. The index wounds selected as pairing must be relatively matched in terms of size and location

• Women of childbearing potential must have a negative pregnancy test prior to randomization

• Sexually active subjects must agree to use medically accepted methods of contraception during the study

Exclusion Criteria

• Have any clinical evidence of local infection of the index lesion
• Use of prior or concomitant medication (Any investigational drug within 30 days, Immunotherapy or cytotoxic chemotherapy within 60 days, Systemic steroidal therapy within 30 days, and topical steroidal therapy within 14 days)
• History of sensitivity to any component of the treatment
• Neurological, cardiovascular, respiratory, hepatic, renal, or metabolic disease likely to interfere with the subject's participation in or completion of the study (At the discretion of investigator, participants with cardiomyopathy can participate)
• Current or former malignancy, including a history of squamous cell carcinomas
• Arterial or venous disorder resulting in ulcerated wounds
• Uncontrolled diabetes mellitus
• Pregnancy or breastfeeding during the study
• Girls or women who have had menarche but have not completed menopause
• Any condition or situation likely to cause the subject to be unable or unwilling to participate in the study procedures

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Placebo	Placebo	It is composed of the same excipients as RGN-137 formulation without the active ingredient.
RGN-137	RGN-137	It is formulated as a gel for topical administration.

Primary Outcome Measures

Name	Time	Method
Time to achieving 50% reduction in area of each index wound from Day 1 up to Day 84.	up to Day 84	This primary endpoint will the time to achieving 50% reduction in area of each index wound from Day 1 up to Day 84, defined as date of the first study visit on which 50% reduction in index wound area is achieved minus date of Day 1 visit.

Secondary Outcome Measures

Name	Time	Method
Time to achieving 50%, 75%, and 100% (with drainage or without drainage) reduction in area of each index wound from Day 1 up to Day 84.	up to Day 84	This secondary endpoint will the time to achieving 50%, 75%, and 100% reduction in area of each index wound from Day 1 up to Day 84, defined as date of the first study visit on which 50% reduction in index wound area is achieved minus date of Day 1 visit.
Incidence of 50%, 75%, and 100% reduction and complete re-epithelialization without drainage in area of each index wound at the scheduled visits.	up to Day 84	This secondary endpoint will be summarized by treatment using frequency counts and percentages.
Change from Baseline and percent change from Baseline in surface area of each index wound at the scheduled visits.	up to Day 84	This secondary endpoint will be computed for each treatment group as well as for treatment difference at each visit.

Trial Locations

Locations (5)

The Children's Hospital of Philadelphia; 🇺🇸 Philadelphia, Pennsylvania, United States

SUNY Downstate Medical Center; 🇺🇸 Brooklyn, New York, United States

Northwestern University; 🇺🇸 Evanston, Illinois, United States

Cincinnati Children's Hospital Medical Center; 🇺🇸 Cincinnati, Ohio, United States

Texas Dermatology and Laser Specialists; 🇺🇸 San Antonio, Texas, United States