{"nct_id":"NCT00143299","title":"A 52-Week Placebo-Controlled Study Evaluating the Safety of Varenicline","status":"COMPLETED","status_verified_date":"2007-06","start_date":"2003-10","start_date_type":null,"primary_completion_date":null,"primary_completion_date_type":null,"completion_date":"2005-03","completion_date_type":null,"phases":["PHASE3"],"tickers":["PFE"]}