Folfoxiri Plus Bev Followed by Reintroduction of Folfoxiri Plus Bev at Progression Versus Folfox Plus Bev Followed by Folfiri Plus Bev in mCRC (TRIBE2)

This is an interventional treatment trial for Metastatic Colorectal Cancer Read More

Main Inclusion Criteria:

Histologically proven diagnosis of colorectal cancer Initially unresectable metastatic colorectal cancer not previously treated with chemotherapy for metastatic disease At least one measurable lesion according to RECIST1.1 criteria Availability of a tumoral sample Male or female of 18-75 years of age ECOG PS < or = 2 if aged < 71 years, ECOG PS = 0 if aged 71-75 years Life expectancy of at least 12 weeks Previous adjuvant chemotherapy allowed only if with fluoropyrimidine monotherapy and more than 6 months elapsed between the end of adjuvant and first relapse Neutrophils >1.5 x 109/L, Platelets >100 x 109/L, Hgb >9 g/dl Total bilirubin 1.5 time the upper-normal limits (UNL) of the normal values and ASAT (SGOT) and/or ALAT (SGPT) <2.5 x UNL (or <5 x UNL in case of liver metastases) alkaline phosphatase <2.5 x UNL (or <5 x UNL in case of liver metastases) Creatinine clearance >50 mL/min or serum creatinine 1.5 x UNL Urine dipstick of proteinuria <2+. Patients discovered to have 2+ proteinuria on dipstick urinalysis at baseline, should undergo a 24-hour urine collection and must demonstrate <1 g of protein/24 hr Will and ability to comply with the protocol Written informed consent to study procedures and to molecular analyses -

Main Exclusion Criteria:

Radiotherapy to any site within 4 weeks before the study Previous adjuvant oxaliplatin-containing chemotherapy Previous treatment with bevacizumab Untreated brain metastases or spinal cord compression or primary brain tumours History or evidence upon physical examination of CNS disease unless adequately treated Symptomatic peripheral neuropathy > 2 grade NCIC-CTG criteria Serious, non-healing wound, ulcer, or bone fracture Evidence of bleeding diathesis or coagulopathy Uncontrolled hypertension and prior histor of hypertensive crisis or hypertensive encephalopathy Clinically significant (i.e. active) cardiovascular disease for example cerebrovascular accidents (≤6 months), myocardial infarction (≤6 months), unstable angina, New York Heart Association (NYHA) grade II or greater congestive heart failure, serious cardiac arrhythmia requiring medication Significant vascular disease (e.g. aortic aneurysm requiring surgical repair or recent arterial thrombosis) within 6 months of study enrolment Any previous venous thromboembolism > NCI CTCAE Grade 3 History of abdominal fistula, GI perforation, intra-abdominal abscess or active GI bleeding within 6 months prior to the first study treatment.

Current or recent (within 10 days prior to study treatment start) ongoing treatment with anticoagulants for therapeutic purposes Chronic, daily treatment with high-dose aspirin (>325 mg/day) Treatment with any investigational drug within 30 days prior to enrollment or 2 investigational agent half-lives (whichever is longer) Other co-existing malignancies or malignancies diagnosed within the last 5 years with the exception of localized basal and squamous cell carcinoma or cervical cancer in situ Major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to study treatment start, or anticipation of the need for major surgical procedure during the course of the study Lack of physical integrity of the upper gastrointestinal tract, malabsorption syndrome, or inability to take oral medication