Conditions: Colorectal Neoplasms
Allocation: NA | Intervention model: SINGLE_GROUP
Enrollment: 128
Healthy volunteers: no

Brief summary:
This open-label, prospective, single-arm, multicenter study will evaluate the relationship of the markers of inflammation and progression-free survival (PFS) in participants with previously untreated metastatic colorectal cancer. The study consists of two phases: Phase A treatment: oral capecitabine plus infusional oxaliplatin (XELOX) plus bevacizumab, or modified infusional 5-fluorouracil (5-FU), leucovorin (LV) and oxaliplatin (mFOLFOX6) plus bevacizmab administered until first disease progression. Participants will then continue with Phase B treatment: infusional 5-FU, LV and irinotecan (FOLFIRI) plus bevacizumab until second disease progression. The anticipated time on study treatment is 4 years.

Detailed description:

Arms:
arm 1: The trial will consist of 2 phases of treatment. Phase A: Participants will receive bevacizumab 7.5 mg/kg intravenous (IV) infusion on Day 1 every 3 weeks in combination with XELOX (capecitabine and oxaliplatin) or bevacizumab 5 mg/kg IV on Day 1 every 2 weeks in combination with mFOLFOX6 (oxaliplatin, leucovorin, and 5-fluouracil) until first disease progression or occurrence of unmanageable toxicity. Phase B: Upon documented first disease progression, participants will continue receiving bevacizumab 5 mg/kg IV on Day 1 every 2 weeks in combination with FOLFIRI (irinotecan, leucovorin, and 5-fluouracil) until second disease progression or occurrence of unmanageable toxicity. Phase B treatment should commence within 4 weeks of the date of documented first disease progression.

Interventions: intervention 1: Oxaliplatin intervention 2: Capecitabine intervention 3: Bevacizumab intervention 4: Leucovorin intervention 5: 5-Fluouracil intervention 6: Irinotecan
Intervention descriptions: intervention 1: Participants will receive oxaliplatin 85 milligrams per square meter (mg/m\^2) IV infusion on Day 1 of every 2 weeks cycle during alternative Phase A treatment or 130 mg/m\^2 on Day 1 of every 3 weeks cycle during Phase A treatment. intervention 2: Participants will receive capecitabine 1000 mg/m\^2 per oral (PO) twice daily on Days 1-14 of 3 weeks cycle during Phase A treatment. intervention 3: Participants will receive 7.5 mg/kg IV infusion on Day 1 every 3 weeks (Phase A treatment) or 5 mg/kg IV on Day 1 every 2 weeks (Alternative Phase A treatment and Phase B). intervention 4: Participants will receive leucovorin 400 mg/m\^2 IV on Day 1 every 2 weeks (Alternative Phase A treatment and Phase B). Investigators may elect to chose low dose of leucovorin (either 20 mg/m\^2 or 50 mg total dose). intervention 5: Participants will receive 5-fluouracil loading dose of 400 mg/m\^2 IV on Day 1 followed by 2400 mg/m\^2 continuous IV infusion over 46 hours Day 1 (Alternative Phase A treatment and Phase B). intervention 6: Participants will receive irinotecan 180 mg/m\^2 IV on Day 1 every 2 weeks during Phase B treatment.

Protocol document: