Verapamil is Less Effective than Triamcinolone for Prevention of Keloid Scar Recurrence After Excision in a Randomized Controlled Trial

Autor: Patricia L Danielsen, Suzanne Rea, Mitali Manzur, Hilary J. Wallace, Mansour A. Alghamdi, Thilanee U Gankande, Helena M. Viola, Andrew W. Stevenson, Fiona M. Wood, Livia C. Hool, Mark W. Fear
Rok vydání: 2016
Předmět:
Zdroj: Acta dermato-venereologica. 96(6)
ISSN: 1651-2057
Popis: A double-blind randomized controlled trial with a paired split-scar design compared verapamil, an L-type Ca2+ channel antagonist, and triamcinolone for prevention of keloid recurrence after excision. Ca2+ channel blocking activity of verapamil in keloid cells was explored. One keloid was excised per subject and each wound half randomized to receive intralesional injections of triamcinolone (10 mg/ml) or verapamil (2.5 mg/ml) at monthly intervals (4 doses). Interim analysis was performed after 14 subjects were completed. Survival analysis demonstrated significantly higher keloid recurrence with verapamil compared to triamcinolone 12 months post-surgery (log-rank test, p = 0.01) and higher overall risk of recurrence with verapamil (hazard ratio 8.44, 95% CI 1.62-44.05). The study was terminated early according to the stopping guideline (p
Databáze: OpenAIRE