{"nct_id":"NCT00508742","title":"Study Evaluating the Impact of a 13-valent Pneumococcal Conjugate Vaccine on Nasopharyngeal Colonization","status":"COMPLETED","status_verified_date":"2013-05","start_date":"2007-12","start_date_type":null,"primary_completion_date":"2011-08","primary_completion_date_type":"ACTUAL","completion_date":"2011-08","completion_date_type":"ACTUAL","phases":["PHASE3"],"tickers":["PFE"]}