{"nct_id":"NCT00174499","title":"A Pilot Drug Trial That Evaluates the Whitening Potential of Nicotine Gum","status":"COMPLETED","status_verified_date":"2012-07","start_date":"2005-07","start_date_type":null,"primary_completion_date":"2005-08","primary_completion_date_type":"ACTUAL","completion_date":"2005-09","completion_date_type":"ACTUAL","phases":["PHASE4"],"tickers":["JNJ"]}