{"nct_id":"NCT01245751","title":"Safety, Tolerability, and Immunogenicity of a Booster Dose of Zoster Vaccine, Live (V211-029)","status":"COMPLETED","status_verified_date":"2017-03","start_date":"2011-04","start_date_type":null,"primary_completion_date":"2012-07","primary_completion_date_type":"ACTUAL","completion_date":"2015-05","completion_date_type":"ACTUAL","phases":["PHASE3"],"tickers":["MRK"]}