{"nct_id":"NCT00568295","title":"A Four-Week Study Comparing Acetaminophen Extended Release and Rofecoxib in the Treatment of Osteoarthritis of the Knee","status":"COMPLETED","status_verified_date":"2011-08","start_date":"1999-10","start_date_type":null,"primary_completion_date":"2000-10","primary_completion_date_type":"ACTUAL","completion_date":"2000-10","completion_date_type":"ACTUAL","phases":["PHASE3"],"tickers":["JNJ"]}