OBJECTIVE To assess the efficacy of topically applied CT-102 APST for treating diabetic neurotrophic foot ulcers.

RESEARCH DESIGN AND METHODS Thirteen patients entered a randomized, double-blind trial of topically applied CT-102 APST vs. placebo (normal saline) gauze dressings for the treatment of nonhealing diabetic neurotrophic foot ulcers. CT-102 APST (Curative Technologies, Setauket, NY) was prepared from homologous platelets and contained multiple growth factors including PDGF, PDAF, EGF, PF-4, TGF-β, aFGF, and bFGF. Inclusion criteria for subjects included diabetes, ulcer of > 8 wk duration, peri-wound transcutaneous oxygen tension > 30 mmHg, platelet count > 100,000/mm³, and no wound infection. Wounds were excised before entry and were > 700 mm³ but < 50,000 mm³ in volume, < 100 cm² in area, and involved subcutaneous tissue.

RESULTS In the CT-102 group, 5 of 7 ulcers were healed (100% epithelialized) by 15 wk, but only 1 of 6 ulcers was healed by 20 wk with placebo (P < 0.05). Average percent reduction in ulcer area at 20 wk was 94% for CT-102 vs. 73% for placebo. Daily reduction in ulcer volume was 73.8 ± 42.4 mm³/day (mean ± SE) for CT-102 vs. 21.8 ± 8.1 mm³/day for placebo (P < 0.05). Daily reduction in ulcer area was 6.2 ± 1.8 mm²/day for CT-102 vs. 1.8 ± 0.4 mm²/day for placebo (P < 0.05).

CONCLUSIONS CT-102 significantly accelerated wound closure in diabetic leg ulcers when administered as part of a comprehensive program for the healing of chronic ulcers.