{"nct_id":"NCT00887601","title":"BOLD Functional Magnetic Resonance Imaging (fMRI) and Cerebral Blood Flow Measurements as Biomarkers for Cognition Enhancing Drugs (3134-006)","status":"COMPLETED","status_verified_date":"2015-07","start_date":"2007-08","start_date_type":null,"primary_completion_date":"2008-05","primary_completion_date_type":"ACTUAL","completion_date":"2008-05","completion_date_type":"ACTUAL","phases":["PHASE1"],"tickers":["MRK"]}