{"nct_id":"NCT00055367","title":"Safety, Tolerability and Effectiveness of Natalizumab in Adolescents With Active Crohn's Disease","status":"COMPLETED","status_verified_date":"2012-03","start_date":"2002-04","start_date_type":null,"primary_completion_date":"2004-05","primary_completion_date_type":"ACTUAL","completion_date":"2004-05","completion_date_type":"ACTUAL","phases":["PHASE2"],"tickers":["BIIB"]}