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  • Title: A randomized, controlled trial of Promogran (a collagen/oxidized regenerated cellulose dressing) vs standard treatment in the management of diabetic foot ulcers.
    Author: Veves A, Sheehan P, Pham HT.
    Journal: Arch Surg; 2002 Jul; 137(7):822-7. PubMed ID: 12093340.
    Abstract:
    HYPOTHESIS: Promogran, a wound dressing consisting of collagen and oxidized regenerated cellulose, is more effective that standard care in treating chronic diabetic plantar ulcers. DESIGN: Randomized, prospective, controlled multicenter trial. SETTING: University teaching hospitals and primary care centers. PATIENTS: A total of 276 patients from 11 centers were enrolled in the study. The mean age of the patients was 58.3 years (range, 23-85 years). All patients had at least 1 diabetic foot ulcer. INTERVENTIONS: Patients were randomized to receive Promogran (n = 138) or moistened gauze (control group; n = 138) and a secondary dressing. Dressings were changed when clinically required. The maximum follow-up for each patient was 12 weeks. MAIN OUTCOME MEASURE: Complete healing of the study ulcer (wound). RESULTS: After 12 weeks of treatment, 51 (37.0%) Promogran-treated patients had complete wound closure compared with 39 (28.3%) control patientss, but this difference was not statistically significant (P =.12). The difference in healing between treatment groups achieved borderline significance in the subgroup of patients with wounds of less than 6 months' duration. In patients with ulcers of less than 6 months' duration, 43 (45%) of 95 Promogran-treated patients healed compared with 29 (33%) of 89 controls (P =.056). In the group with wounds of at least 6 months' duration, similar numbers of patients healed in the control (10/49 [20%]) and the Promogran (8/43 [19%]; P =.83) groups. No differences were seen in the safety measurements between groups. Patients and investigators expressed a strong preference for Promogran compared with moistened gauze. CONCLUSIONS: Promogran was comparable to moistened gauze in promoting wound healing in diabetic foot ulcers. It showed an additional efficacy for ulcers of less than 6 months' duration that was of marginal statistical significance. Furthermore, Promogran had a safety profile that was similar to that of moistened gauze, with greater user satisfaction. Therefore, Promogran may be a useful adjunct in the management of diabetic foot ulceration, especially in ulcers of less than 6 months' duration.
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