NCT00004005 2017-04-26Irinotecan Followed By Fluorouracil and Leucovorin in Treating Patients With Stage III or Stage IV Colorectal Carcinoma (Cancer), Other Refractory Carcinoma, or Metastatic Adenoma (Cancer) of Unknown Primary OriginSt. Jude Children's Research HospitalPhase 2 Completed12 enrolled