Overview Melatonin in Smoke-induced Vascular Injury Status: Completed Trial end date: 2015-10-01 Target enrollment: Participant gender: Summary The main purpose of this study was to evaluate the effects of melatonin in the regulation of the vascular injury in smokers through population-based, randomized, double-blind, placebo-controlled trial. Phase: Phase 4 Details Lead Sponsor: Peking Union Medical College HospitalTreatments: Melatonin