Overview A Study of Three Doses of TCH346 in Patients With Early Parkinson's Disease to Evaluate Safety and Efficacy Status: Completed Trial end date: 2003-11-01 Target enrollment: Participant gender: Summary This study will investigate the effect of TCH346 compared to placebo in delaying the need for symptomatic treatment with dopaminergic agents Phase: Phase 1/Phase 2 Details Lead Sponsor: NovartisTreatments: Maleic acid