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This is a placebo- and active-controlled dose-range-finding study which isalso designed to assess the efficacy and safety of preladenant 2, 5, 10 mg twicedaily versus placebo as an adjunct therapy to L-dopa when administered to subjectswith moderate…
This is a active-controlled dose-range-finding study which is also designed to assess the efficacy and safety of preladenant 2, 5, 10 mg twice daily during long term use as an adjunct therapy to L-dopa when administered to subjects with moderate to…
Primary Objectives:* Change from baseline to week 48 in cognition according to the Alzheimer Disease Assessment Scale-Cognition (ADAS-Cog) compared to placebo.* Changes from baseline to week 48 in ability to perform daily activities according to the…