{"nct_id":"NCT04843722","title":"COVID-19 Supplemental Vaccine Boost to Enhance T Cell Protection in Those Who Have Already Received EUA S-Based Vaccines","status":"WITHDRAWN","status_verified_date":"2021-04","start_date":"2021-12","start_date_type":"ESTIMATED","primary_completion_date":"2021-12","primary_completion_date_type":"ESTIMATED","completion_date":"2021-12-14","completion_date_type":"ACTUAL","phases":["PHASE1","PHASE2"],"tickers":["IBRX"]}