Abstract
e15092 Background: Bevacizumab a monoclonal antibody against vascular endothelial growth factor (VEGF) has shown in combination with chemotherapy a significant survival improvement in pts with advanced colorectal cancer (F. Kabbinavar JCO 2005 and H. Hurwitz NEJM 2004). In this study we investigated the safety and the efficacy of the addition of bevacizumab to FOLFOX7 regimen in pts with metastatic colorectal cancer. Methods: Inclusion criteria: Histological proven colorectal carcinoma, measurable disease at time of inclusion, no prior chemotherapy (adjuvant chemotherapy allowed), no CNS metastasis, no peripheral neuropathy, no other serious concomitant illness, ECOG PS ≤ 2, Urine dipstick of proteinuria <2+, adequate renal and liver function, good bone marrow reserve and informed consent. Pts received bimonthly Oxaliplatin 130 mg/m2 D1, Folinic acid 400 mg/m2 D1, Fluorouracil 2400 mg/m2 46 hours continuous infusion and Bevacizumab 5mg/kg D3 Results: From April 2005 to June 2007, 47 pts (M/F = 28/19, colon/rectum = 28/19) were enrolled in the study. Median age is 52,7 years old (32–74). They received 452 cycles, median=7 range (1–18). All pts were evaluable for toxicity and survival and 46 for responses. Complete response (CR) was achieved in 3 pts (6.6%), partial response (PR) in 28 pts (60.8%), stable disease in 4 pts (8.7%) and progressive disease in 11 pts (24%). The overall response rate (ORR=CR+PR) is 67.3%. Severe toxicity (CTC/NCI ¾ Grade) related to chemotherapy was neuropathy 5.3%, neutropenia 8.4%, anaemia 3.3%, thrombocytopenia 1.8%, vomiting 8.2%, diarrhoea 2.9%, stomatis 4.9% and allergy 0.7%. Toxicity related to Bevacizumab was bleeding CTCNCI grade 1 and 2 in 40.8%, hypertension grade 1 qnd 2 in 3.7% qnd grqde 3 in 0.2. proteinuria grade and 2 in 13.7%. 1 case of phlebitis and 1 case of Bevacizumab allergy Conclusions: Bevacizumab and FOLFOX7 combination is a promising treatment with high efficacy and safety profile for pts with advanced colorectal cancer No significant financial relationships to disclose.
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