Effect of duration of postherpetic neuralgia on efficacy analyses in a multicenter randomized controlled study of NGX-4010 an 8 capsaicin patch evaluated for the treatment of postherpetic neuralgia

摘要

BackgroundPostherpetic neuralgia (PHN) is a painful and difficult to treat complication of acute herpes zoster. Current treatment options provide only partial relief and are often limited by poor tolerability. We evaluated the safety and efficacy of a single 60-minute application of NGX-4010, an 8% capsaicin patch, in patients with PHN.