{"nct_id":"NCT04535453","title":"A Study to Evaluate a Range of Dose Levels and Vaccination Intervals of Ad26.COV2.S in Healthy Adults and Adolescents","status":"COMPLETED","status_verified_date":"2023-06","start_date":"2020-08-28","start_date_type":"ACTUAL","primary_completion_date":"2022-03-09","primary_completion_date_type":"ACTUAL","completion_date":"2022-03-09","completion_date_type":"ACTUAL","phases":["PHASE2"],"tickers":["JNJ"]}