US drug major Schering-Plough's preladenant met the primary endpoint in a Phase II dose-finding trial in patients suffering from moderate-to-severe Parkinson's disease experiencing motor fluctuations and dyskinesias.
The novel and selective adenosine2a receptor antagonist was statistically-significantly more effective than the control group at the doses of 5mg and 10mg, respectively, in reducing the "off-time."
The 253-patient study was a randomized, placebo-controlled, double-blind, multicenter, multinational clinical trial that evaluated the efficacy and safety of four different doses (1mg, 2mg, 5mg or 10mg) of preladenant compared to a control group.
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