An Open-Label, Interventional, Prospective, Real-World Evidence Study to Evaluate a Multimodal Wound Matrix in Patients with Refractory Wounds

Objective: The objective of this open-label, interventional, prospective clinical study was to evaluate the effectiveness of a multimodal wound matrix (MWM) in moving chronic, nonhealing wounds that had failed prior therapies onto a healing trajectory. The overall response rate was the proportion of subjects who had greater than 40% reduction in size after 4 weeks of treatment. Secondary objectives included the percentage area reduction (PAR) after 4 and 12 weeks, incidence of ulcer closing, and changes in quality of life. Approach: An open-label, interventional, prospective cohort, real-world evidence study was conducted following the STROBE criteria. Criteria included chronic nonhealing wounds of multiple etiologies in subjects with extensive comorbidities. Results were compared with data from the U.S. Wound Registry. Results: A total of 111 subjects entered the screening phase and 64 were treated. Fifty-three wounds were eligible for the dataset that included 18 diabetic foot ulcers, 19 venous leg ulcers, 2 pressure injuries, 1 surgical, 1 lower extremity wound, and 12 unclassified etiologies. The objective response rate was 42%. The 4-week PAR was 34%. The 12-week PAR was 66%. Eighteen wounds closed by week 12. Innovation: MWM is a formulation technology developed to address the major obstacles that prevent healing. Results were evaluated in a patient population with extensive comorbidities that had failed prior treatments and would be generally excluded from controlled trials. Conclusion: The results from this study support the contention that MWM achieves substantial clinical improvement in a complex patient population not enrolled in clinical trials and demonstrates an advancement in wound management.