{"nct_id":"NCT01670617","title":"DeNovo NT Natural Tissue Graft Stratified Knee Study","status":"UNKNOWN","status_verified_date":"2016-12","start_date":"2012-03","start_date_type":null,"primary_completion_date":"2018-12","primary_completion_date_type":"ESTIMATED","completion_date":"2021-12","completion_date_type":"ESTIMATED","phases":["NA"],"tickers":["ZBH"]}