{"nct_id":"NCT01859130","title":"Zimmer POLAR - Total Knee Arthroplasty (TKA)","status":"COMPLETED","status_verified_date":"2023-10","start_date":"2013-10-21","start_date_type":"ACTUAL","primary_completion_date":"2021-12-31","primary_completion_date_type":"ACTUAL","completion_date":"2021-12-31","completion_date_type":"ACTUAL","phases":["NA"],"tickers":["ZBH"]}