Open Label Extension Study to Evaluate the Long-term Safety of Zorblisa (SD-101-6.0) in Patients With Epidermolysis Bullosa

An Open Label Multi-Center Extension Study to Evaluate the Long-term Safety of Zorblisa™ (SD-101-6.0) in Patients With Epidermolysis Bullosa

The study aimed to assess the long-term safety of topical use of Zorblisa (SD-101-6.0) in participants with Epidermolysis Bullosa (EB).

This was an open label, multi-center extension study to assess the long-term safety of topically applied SD-101-6.0 in participants with simplex, recessive dystrophic, and junctional non-Herlitz EB. SD-101-6.0 was applied topically once a day to the entire body. The planned duration of treatment with SD-101-6.0 for Study SD-006 was up to 48 months, with a safety follow-up period of 30 days; however, the study was terminated early by the sponsor. The maximum study duration completed by at least 1 participant, treatment and safety follow-up, was 37 months.

Participants who successfully completed Study SD-005 had the option to rollover into Study SD-006. The screening/baseline visit (Visit 1) occurred at Visit 5 (approximately 90 days from baseline) of Study SD-005. The Body Surface Area (BSA) assessments of lesional skin and wound burden performed at Visit 5 (approximately 90 days from baseline) for Study SD-005 were utilized as the baseline assessments for Study SD-006. Participants returned for follow-up visits at Month 1 then every 3 months.

At each visit, assessments included BSA of lesional skin and wound burden. For target wounds that are not closed by the end of Study SD-005, the ARANZ picture and calculation of target wound area at the final visit for Study SD-005 was used as the baseline area size of the target wound for Study SD-006. These unhealed target wounds from Study SD-005 were assessed via ARANZ SilhouetteStar™ at each subsequent scheduled visit until the target wound was documented as closed. Closed wounds were assessed for scarring.

Inclusion Criteria:

• Informed Consent Form signed by the participant or participant's legal representative; if the participant was under the age of 18 but capable of providing assent, signed assent from the participant.
• Participant (or caretaker) must have been willing to comply with all protocol requirements.
• Participants who completed the SD-005 study (on study drug at Visit 5, approximately 90 days from baseline).

Exclusion Criteria:

• Participants who did not meet the entry criteria outlined above.
• Pregnancy or breastfeeding during the study. (A urine pregnancy test was performed at the final visit for Study SD-005 for female participants of childbearing potential and repeated at screening/baseline visit of Study SD-006 if these visits did not occur on the same day).
• Female participants of childbearing potential who were not abstinent or not practicing a medically acceptable method of contraception.