Comparative Evaluation of Clinical Efficacy and Safety of Collagen Laminin-Based Dermal Matrix Combined With Resveratrol Microparticles (Dermalix) and Standard Wound Care for Diabetic Foot Ulcers

Abstract

This is an open, prospective, comparative parallel-arm medical device clinical study of Dermalix (Dx) in diabetic foot wounds. Dx is a 3-dimensional collagen-laminin porous-structured dermal matrix prepared and additionally impregnated with resveratrol-loaded hyaluronic acid and dipalmitoylphosphatidylcholine-based microparticles. The aim was to evaluate the efficacy and safety of Dx, an investigational medical device, in Wagner 1 and 2 wounds in comparison to a standard wound care (SWC) that consists of irrigation and cleaning with sterile saline solution. Forty-eight patients were randomized to receive either SWC or SWC + Dx. A 4-week treatment period was followed by a 2-month follow-up without treatment. The wound area measurement, total collagen, vascular epidermal growth factor, tumor necrosis factor, interleukin 1, caspase 3, glutathione, reduced/oxidized glutathione, and lipid peroxidation levels were evaluated. At the end of 4 weeks, the percentage closures of wounds were determined as 57.82% for Dx, and 26.63% for SWC groups. Dx had a significant effect on tumor necrosis factor, caspase 3, and reduced/oxidized glutathione levels. Dx provided 2 times faster wound healing and decreased oxidative stress. Application of Dx in the first phase of wound would help the wound area heal faster with a safe profile.

Keywords: collagen scaffold; diabetic foot wound; hyaluronic acid; laminin; resveratrol; wound healing.