| Summary: | Abstract Background Metastatic colorectal cancer imposes a substantial burden on patients and society. Over the last years, progresses in the treatment have been made especially due to the introduction of monoclonal antibodies, such as bevacizumab which, on the other hand, has considerably increased the costs of treatment. We performed a cost-effectiveness analysis of bevacizumab plus XELOX in comparison with XELOX alone in metastatic colorectal cancer in first-line therapy, from the perspective of a public hospital school in Brazil. Methods This was a cost-effectiveness analysis performed by a decision tree and Markov models. Costs were expressed in local currency and outcomes were expressed in months of life gained. The model was constructed using the TreeAge Pro 2013® software. Results The incremental difference in years of life gained was 2.25 months, with an extra cost of 47,833.57 BRL, resulting in an incremental cost-effectiveness of 21,231.43 BRL per month of life gained. Conclusions Although the XELOX plus bevacizumab regimen is a more expensive and more effective treatment than XELOX, it does not fit the reimbursement values fixed by the public healthcare system in Brazil.
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