{"nct_id":"NCT00474175","title":"Benzocaine Gel Toothache Dose-Response Study","status":"COMPLETED","status_verified_date":"2013-02","start_date":"2007-05","start_date_type":null,"primary_completion_date":"2010-12","primary_completion_date_type":"ACTUAL","completion_date":"2010-12","completion_date_type":"ACTUAL","phases":["PHASE4"],"tickers":["PFE"]}