{"nct_id":"NCT04838847","title":"A Study to Evaluate the Immunogenicity and Safety of the SARS-CoV-2 mRNA Vaccine CVnCoV in Elderly Adults Compared to Younger Adults for COVID-19","status":"WITHDRAWN","status_verified_date":"2021-04","start_date":"2021-10-01","start_date_type":"ESTIMATED","primary_completion_date":"2022-01","primary_completion_date_type":"ESTIMATED","completion_date":"2022-09","completion_date_type":"ESTIMATED","phases":["PHASE3"],"tickers":["CVAC"]}