 NOTE:Patients previously failing oxaliplatin regimen receive FOLIFIRI chemotherapy comprising irinotecan hydrochloride IV over 90 minutes, leucovorin calcium over 2 hours, fluorouracil IV continuously over 46-48 hours, and bevacizumab IV over 30-90 minutes. Treatment repeats for up to 6 courses in the absence of disease progression or unacceptable toxicity. 