{"nct_id":"NCT00638807","title":"Safety and Efficacy of Celecoxib Versus Placebo in the Treatment of Knee Osteoarthritis in Patients Who Were Unresponsive to Naproxen and Ibuprofen","status":"COMPLETED","status_verified_date":"2021-01","start_date":"2003-12","start_date_type":null,"primary_completion_date":null,"primary_completion_date_type":null,"completion_date":"2004-07","completion_date_type":"ACTUAL","phases":["PHASE4"],"tickers":["PFE"]}