{"nct_id":"NCT00237172","title":"Phase II Clinical Study of Imatinib Mesylate in Patients With Malignant Gastrointestinal Stromal Tumors (Extension Study)","status":"COMPLETED","status_verified_date":"2012-04","start_date":"2002-09","start_date_type":null,"primary_completion_date":"2005-07","primary_completion_date_type":"ACTUAL","completion_date":null,"completion_date_type":null,"phases":["PHASE2"],"tickers":["NVS"]}