{"nct_id":"NCT00143364","title":"A Twelve-Week Study of Varenicline for Safety and Efficacy in Comparison With Placebo and Zyban for Smoking Cessation","status":"COMPLETED","status_verified_date":"2007-06","start_date":"2003-06","start_date_type":null,"primary_completion_date":null,"primary_completion_date_type":null,"completion_date":"2005-03","completion_date_type":"ACTUAL","phases":["PHASE3"],"tickers":["PFE"]}