Inclusion Criteria

Inclusion criteria :

- Histologically or cytologically proven adenocarcinoma of the colon or rectum

- Metastatic disease

- Eastern Cooperative Oncology Group performance status 0-1

- One and only one prior chemotherapeutic regimen for metastatic disease. This prior
chemotherapy must be an oxaliplatin containing regimen. Patients must have progressed
during or after the oxaliplatin based chemotherapy. Patients relapsed within 6 months
of completion of oxaliplatin adjuvant chemotherapy are eligible.

Exclusion criteria:

- Prior therapy with irinotecan

- Inadequate bone marrow, liver and renal function: neutrophils < 1.5x109/L, platelets
< 100x109/L, hemoglobin < 9.0 g/dL, total bilirubin >1.5 x upper normal limit (ULN),
transaminases >3 x ULN (unless liver metastasis are present), alkaline phosphatase >3
x ULN (unless liver metastasis are present), serum creatinine > 1.5 x ULN.

- Less than 4 weeks from prior radiotherapy, prior chemotherapy, prior major surgery
(or until the surgical wound is fully healed).

- Treatment with any investigational drug within the prior 30 days.

- Treatment with concomitant anticonvulsivant agents that are CYP3A4 inducers
(phenytoin, phenobarbital, carbamazepine), unless discontinued >7 days.

- History of brain metastases, uncontrolled spinal cord compression, or carcinomatous
meningitis or new evidence of brain or leptomeningeal disease.

- Prior malignancy (other than colorectal) including prior malignancy from which the
patient has been disease free for < 5 years (except adequately treated basal or
squamous cell skin cancer or carcinoma in situ of the cervix).

- Any of the following within 6 months prior to study inclusion: myocardial infarction,
severe/unstable angina pectoris, coronary/peripheral artery bypass graft, severe
congestive heart failure, stroke or transient ischemic attack.

- Any of the following within 3 months prior study inclusion: severe gastrointestinal
bleeding/hemorrhage, treatment resistant peptic ulcer disease, erosive oesophagitis
or gastritis, infectious or inflammatory bowel disease, diverticulitis, pulmonary
embolism or other uncontrolled thromboembolic event.

- Occurrence of deep vein thrombosis within 4 weeks, prior to study inclusion.

- Known dihydropyrimidine dehydrogenase deficiency.

- Predisposing colonic or small bowel disorders in which the symptoms were
uncontrolled.

- Prior history of chronic enteropathy, inflammatory enteropathy, chronic diarrhea,
unresolved bowel obstruction/sub-obstruction, more than hemicolectomy, extensive
small intestine resection with chronic diarrhea.

- Known Gilbert's syndrome.

- Unresolved or unstable toxicity from any prior anti cancer therapy at the time of
inclusion.

- History of anaphylaxis or known intolerance to atropine sulphate or loperamide or
appropriate antiemetics to be administered in conjunction with FOLFIRI (irinotecan,
5-Fluorouracil, leucovorin).

- Severe acute or chronic medical condition, which could impair the ability of the
patient to participate to the study.

- Urine protein-creatinine ratio (UPCR) >1 on morning spot urinalysis or proteinuria >
500 mg/24-h.

- Uncontrolled hypertension within 3 months prior to study inclusion.

- Patients on anticoagulant therapy with unstable dose of warfarin and/or having an
out-of-therapeutic range INR within the 4 weeks prior to study inclusion.

- Evidence of clinically significant bleeding predisposition or underlying
coagulopathy, non-healing wound.

- Pregnant or breast-feeding women.

- Patients with reproductive potential who do not agree to use an accepted effective
method of contraception.

The above information is not intended to contain all considerations relevant to a
patient's potential participation in a clinical trial.