Overview Efficacy and Safety of Pregabalin Sustained Release Tablet for Postherpetic Neuralgia Status: Unknown status Trial end date: 2017-06-01 Target enrollment: Participant gender: Summary The purpose of this study is to evaluate the Efficacy and safety of pregabalin sustained release tablet versus placebo for postherpetic neuralgia. Phase: Phase 3 Details Lead Sponsor: Jiangsu HengRui Medicine Co., Ltd.Treatments: Pregabalin