Stocchi, F; Rascol, O; Hauser, RA; Huyck, S; Tzontcheva, A; Capece, R; Ho, TW; ... Preladenant Early Parkinson Disease Study Group; + view all Stocchi, F; Rascol, O; Hauser, RA; Huyck, S; Tzontcheva, A; Capece, R; Ho, TW; Sklar, P; Lines, C; Michelson, D; Hewitt, DJ; Preladenant Early Parkinson Disease Study Group; - view fewer (2017) Randomized trial of preladenant, given as monotherapy, in patients with early Parkinson disease. Neurology , 88 (23) pp. 2198-2206. 10.1212/WNL.0000000000004003.