Study to Evaluate Efficacy of OLX10010 in Reducing Recurrence of Hypertrophic Scarring After Scar Revision Surgery
Summary
Phase 2a, prospective, randomized, double-blind, intra-subject, placebo-controlled, proof of concept study. Approximately twenty subjects will be randomized 1:1 to one of two treatment arms: Arm A: 2.0 mg/cm OLX10010 biweekly (every two weeks) Arm B: 5.0 mg/cm OLX10010 biweekly (every two weeks) Each treatment arm will have approximately 10 subjects. Each subject will receive both active (OLX10010) and control (placebo) treatment post-hypertrophic scar surgery biweekly (every two weeks) for a total of six doses. Dosing will occur post-surgery on Weeks 2, 4, 6, 8, 10, and 12. Post-treatment follow-up visits will occur at Weeks 18 and 24, and a long-term follow-up visit will occur at Month 12. The Patient and Observer Scar Assessment Scale (both physician and patient scales), Stony Brook Scar Evaluation Scale, Vancouver Scar Scale, and a photograph-based visual analog scale by blinded experts will be completed prior to scar revision surgery, at Weeks 2, 8, 12, 18, and 24, and at Month 12. The overall opinion responses on the physician scales of the POSAS at Week 24 will be used for primary endpoint analysis. The total length of the linear hypertrophic scar line will be divided equally for treatment with OLX10010 and placebo, injected intradermally per centimeter (cm). The OLX10010 end and placebo end of the scar line will be separated by a 2 cm or greater distance depending on the scar length. After the Week 24 visit, all data collected will be cleaned and all data management activities will be completed. After the database is frozen/locked, the primary endpoint efficacy analysis will be completed. If at least one of the treatment arms are shown to be appropriate to reduce recurrence of hypertrophic scars, all analyses will be performed. If the efficacy analysis of Arms A and B indicate the study doses are not as effective as expected, the sponsor may decide to add a third arm (Arm C) to explore the weekly dosing regimen. See detailed summary. Subjects in all study arms will continue in the study until their Month 12 visit. After all subjects complete that visit, data are collected, and data management activities are completed, Month 12 data will be analyzed.
Timeline
- Start
- 2021-08-19
- Primary completion
- 2023-01-11
- Completion
- 2023-07-12
Outcome
Met primary endpoint
release “OLX10010 시험군에서 비대흉터의 재발을 억제하는 임상적 효력이 확인됐다.” olixpharma.com ↗
release “OLX10010을 투여한 시험군의 1차 평가 지표의 P값(p-value)은 0.017로 나타나 통계적 유의성을 충족한 반면” olixpharma.com ↗
Drugs
| Evaluation | Drug | Modality | Dose | Route |
|---|---|---|---|---|
| Subject | OLX10010 | Small interfering RNA (siRNA) | 2 unknown | Other |
| Subject | OLX10010 | Small interfering RNA (siRNA) | 5 unknown | Other |