{"nct_id":"NCT00643799","title":"Safety and Efficacy of Celecoxib Versus Naproxen in the 6-month Treatment of Knee Osteoarthritis","status":"COMPLETED","status_verified_date":"2021-01","start_date":"2004-03","start_date_type":null,"primary_completion_date":"2005-01","primary_completion_date_type":"ACTUAL","completion_date":"2005-01","completion_date_type":"ACTUAL","phases":["PHASE4"],"tickers":["PFE"]}