{"nct_id":"NCT04614948","title":"A Study of Ad26.COV2.S for the Prevention of SARS-CoV-2-mediated COVID-19 in Adults","status":"COMPLETED","status_verified_date":"2025-01","start_date":"2020-11-12","start_date_type":"ACTUAL","primary_completion_date":"2023-06-18","primary_completion_date_type":"ACTUAL","completion_date":"2023-06-18","completion_date_type":"ACTUAL","phases":["PHASE3"],"tickers":["JNJ"]}