Evaluation of [123I]MNI-420 and SPECT as a Marker of the Adenosine A2a Receptor in PD, HD and Healthy Subjects.
KW-6002 to Treat Parkinson's Disease
A Placebo- and Active Controlled Study of Preladenant in Subjects With Moderate to Severe Parkinson's Disease (Study P04938)
Study to Evaluate SYN115 in Parkinson's Disease
A Placebo- and Active-Controlled Study of Preladenant in Early Parkinson's Disease (P05664 AM5)
† Indicates status has not been verified in more than two years