Diabetes Care, Vol 18, Issue 1 39-46, Copyright © 1995 by American Diabetes Association

ARTICLES

Promotion and acceleration of diabetic ulcer healing by arginine-glycine-aspartic acid (RGD) peptide matrix. RGD Study Group

DL Steed, JJ Ricotta, JJ Prendergast, RJ Kaplan, MW Webster, JB McGill and SL Schwartz
Department of Surgery, University of Pittsburg, Pennsylvania 15213.

OBJECTIVE--To determine the effectiveness and safety of arginine-glycine-aspartic acid (RGD) peptide matrix in the treatment of diabetic foot ulcers. RESEARCH DESIGN AND METHODS--This randomized placebo-controlled investigator- and patient-blinded prospective multicenter investigation was conducted at three institutional and three private U.S. clinics providing ambulatory care. Sixty-five diabetic patients with chronic full-thickness neurotrophic foot ulcers were enrolled. Six discontinued the study because of adverse events. RGD peptide matrix (Argidene Gel; formerly Telio-Derm Gel) was applied topically twice weekly for up to 10 weeks in patients who otherwise received standard care. Control group patients received topical saline as a placebo plus standard care. The primary method of assessment was the incidence and rate of ulcer closure. All patients enrolled were included in the data analysis. RESULTS--The percentage of patients whose ulcers healed completely in the RGD peptide matrix group (35%; 14 of 40 patients) was over fourfold greater (P = 0.02) than that in the placebo group (8%; 2 of 25 patients). By the study end point (either day of healing or week 10), 30 of 40 (75%) RGD peptide matrix patients had achieved > 50% ulcer closure compared with 12 of 25 (48%) placebo patients (P = 0.03). RGD peptide matrix also significantly (P = 0.03) increased the rate of ulcer closure over the 10 weeks of the study. CONCLUSIONS--RGD peptide matrix treatment promoted and accelerated the healing of chronic diabetic foot ulcers to a significant degree.
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