{"nct_id":"NCT00741884","title":"A Study to Evaluate the Safety and Efficacy of Three Doses of a Controlled Release Formulation of Varenicline for Smoking Cessation","status":"WITHDRAWN","status_verified_date":"2015-04","start_date":"2010-08","start_date_type":null,"primary_completion_date":"2011-08","primary_completion_date_type":"ESTIMATED","completion_date":"2011-08","completion_date_type":"ESTIMATED","phases":["PHASE2"],"tickers":["PFE"]}