San Diego-based Acadia Pharmaceuticals said that a Phase II trial of its lead drug missed its primary endpoint in treating a side effect of anti-psychotic drugs used to treat schizophrenia. Researchers mounted a five-day trial of ACP-103 for akathisia, a disorder characterized by restlessness and anxiety that is linked to anti-psychotic medications. The drug developer said that it noted significant positive trends in the study, but that a large placebo response negated any statistically significant result for the experimental drug. A separate, 400-patient Phase II study is underway.
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