{"nct_id":"NCT00452686","title":"Study to Assess Safety & Immunogenicity of GSK Biologicals' Boostrix (dTpa) Vaccine vs. Chinese DT Vaccine","status":"COMPLETED","status_verified_date":"2016-10","start_date":"2007-03","start_date_type":null,"primary_completion_date":null,"primary_completion_date_type":null,"completion_date":"2007-05","completion_date_type":"ACTUAL","phases":["PHASE3"],"tickers":["GSK"]}