{"nct_id":"NCT00748592","title":"A Dose-Ranging, Multicenter Polysomnography Trial of PD 0200390 in Elderly Subjects With Primary Insomnia","status":"WITHDRAWN","status_verified_date":"2009-02","start_date":"2009-01","start_date_type":null,"primary_completion_date":"2009-06","primary_completion_date_type":"ESTIMATED","completion_date":"2009-06","completion_date_type":"ESTIMATED","phases":["PHASE2"],"tickers":["PFE"]}