This is a multicenter, randomized, double-blind, placebo-controlled, parallel-group, phase 3 study to evaluate the efficacy and safety of TVP-1012 in Japanese participants with early Parkinson's disease.~The study period consisted of a 28-week trial period. The participants who fulfill the inclusion criteria and not meeting any of the exclusion criteria were enrolled, and randomized in a 1:1 ratio to either the 1 mg of TVP-1012 or the placebo group. In each treatment group, participants received either 1 mg of TVP-1012 or placebo once daily in a double-blinded manner.
The purpose of this study is to evaluate the efficacy and safety of TVP-1012 (1 mg/day) administered to Japanese patients with early Parkinson's disease.