{"nct_id":"NCT00306592","title":"Natalizumab Re-Initiation of Dosing","status":"COMPLETED","status_verified_date":"2017-02","start_date":"2006-03","start_date_type":null,"primary_completion_date":"2007-12","primary_completion_date_type":"ACTUAL","completion_date":"2008-02","completion_date_type":"ACTUAL","phases":["PHASE3"],"tickers":["BIIB"]}