This study aims to evaluate the safety and effectiveness of an experimental biological dressing called TrophiPatch, applied to adults with chronic leg ulcers of diabetic or vascular orign. TrophiPatch contains stromal cells derived from a donor's fat tissue, which are purified and processed in a certified laboratory. These cells have shown wound-healing, anti-inflammatory and pro-angiogenic properties in preclinical studies.
All 18 participants will receive a single application of TrophiPatch on their wound. The total study duration is up to 24 weeks, with 23 scheduled visits for follow-up and monitoring.