Dystrophic Epidermolysis Bullosa
Conditions
Keywords
DEB
Brief summary
The purpose of this study is to determine whether administration of D-Fi in addition to standard of care improves wound healing as compared to standard of care alone (control) in children, adolescents, and adults with Dystrophic Epidermolysis Bullosa.
Detailed description
CCB-EB-304 is a multi-center, intra-patient randomized and controlled, open-label, rater-blinded Phase 3 study of D-Fi for the treatment of persistent non-healing and recurrent DEB wounds in approximately 32 subjects. Each subject will serve as his/her own control. Each subject's Target Wounds will be paired then randomized to receive D-Fi (Treatment Wound) or remain untreated (Control Wound). One Target Wound Pair will be identified for each subject. Subjects will receive intradermal injections of D-Fi in each specified Treatment Wound in three or more treatment sessions. The first treatment session occurs at Day 1, the second at Week 8/Month 2 and the third at Week 16/Month 4. Additional treatment sessions may occur at Week 26/Month 6 and Week 32/Month 8 and Week 40/Month 10 when unclosed Treatment Wounds may be re-treated, and unclosed Control Wounds may be treated. Safety and efficacy assessments will occur at scheduled intervals through Week 48/Month 12, when the Treatment Period is completed, and is followed by an optional Open-Label Extension (OLE) treatment phase of an additional 96 weeks. A long-term safety follow-up period (through 15 years) commences for subjects who have received one or more D-Fi injections, either following the treatment phase or if the subject had opted-in, the OLE.
Interventions
D-Fi is composed of fibroblasts isolated from the subject's skin biopsies which are genetically corrected with the full length COL7A1 gene encoding for type VII collagen.
Sponsors
Study design
Intervention model description
Intra-patient Randomized and Controlled, Open-label, Rater-Blinded, Multi-center
Eligibility
Inclusion criteria
* Male or female ≥2 years of age at the Screening visit * Clinical diagnosis of DEB with confirmation of COL7A1 genetic mutation.
Exclusion criteria
* Medical instability limiting ability to travel to the investigative site. * Active infection with human immunodeficiency virus, hepatitis B or hepatitis C. * The presence of clinically significant COL7 antibodies. * Evidence of systemic infection. * Known allergy to any of the constituents of the product. * Female who is pregnant or breastfeeding.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The difference in Complete (100%) Wound Closure of the Target Wound Pair at either Week 22 (Visit 6), and Week 24 (Visit 7) or at Week 24 (Visit 7) and Week 26 (Visit 8) as assessed by a Blinded Assessor. | Week 26 |
Countries
United States