{"nct_id":"NCT01244061","title":"A Multi-National Study To Assess How Effective And Safe The Smoking Cessation Medicine Varenicline Is In Smokers Who Have Already Tried Varenicline In The Past As A Prescription Medicine From Their Usual Healthcare Provider","status":"COMPLETED","status_verified_date":"2014-05","start_date":"2010-12","start_date_type":null,"primary_completion_date":"2012-11","primary_completion_date_type":"ACTUAL","completion_date":"2012-11","completion_date_type":"ACTUAL","phases":["PHASE4"],"tickers":["PFE"]}