{"nct_id":"NCT04505722","title":"A Study of Ad26.COV2.S for the Prevention of SARS-CoV-2-Mediated COVID-19 in Adult Participants","status":"COMPLETED","status_verified_date":"2025-01","start_date":"2020-09-07","start_date_type":"ACTUAL","primary_completion_date":"2023-03-31","primary_completion_date_type":"ACTUAL","completion_date":"2023-03-31","completion_date_type":"ACTUAL","phases":["PHASE3"],"tickers":["JNJ"]}