{"nct_id":"NCT01267058","title":"Booster Study of Combined Diphtheria-tetanus-acellular Pertussis Vaccine in Healthy Adults","status":"COMPLETED","status_verified_date":"2010-12","start_date":"1997-09","start_date_type":null,"primary_completion_date":"1998-02","primary_completion_date_type":"ACTUAL","completion_date":"1998-02","completion_date_type":"ACTUAL","phases":["PHASE3"],"tickers":["GSK"]}