{"nct_id":"NCT03090191","title":"Clostridium Difficile Vaccine Efficacy Trial","status":"COMPLETED","status_verified_date":"2023-01","start_date":"2017-03-29","start_date_type":"ACTUAL","primary_completion_date":"2021-12-21","primary_completion_date_type":"ACTUAL","completion_date":"2021-12-21","completion_date_type":"ACTUAL","phases":["PHASE3"],"tickers":["PFE"]}