Late anastomotic colonic dehiscence due to antiangiogenic treatment, a specific drug-class complication requiring specific treatment: An example of pazopanib complication - 17/03/11
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Summary |
Bevacizumab, a recombinant humanized monoclonal antibody against vascular endothelial growth factor (VEGF), was the first angiogenesis inhibitor approved for the first-line treatment of metastatic colorectal cancer in combination with intravenous fluorouracil-based chemotherapy. Two major cohort studies – BRiTE and BEAT – reported a 2% incidence of bowel perforation, which remains a rare, but serious, complication of bevacizumab treatment. Late anastomotic complications, arising>3 months after surgery, are emerging occurrences that may be associated with bowel perforation. We report here on such a case caused by pazopanib, a new antiangiogenic agent, and also include a review of the published cases in the literature (n=23) and an analysis of their management. Proctectomy was the initial surgery in 17 patients (74%) with rectal cancer, and 13 of these patients had undergone adjuvant radiation prior to surgery. The majority (84%) of the complications occurred with antiangiogenic treatment after a mean number of four cycles. Patients’ management was invariably associated with withdrawal of the antiangiogenic agent, together with conservative treatment in 14 patients (66%).
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Vol 35 - N° 2
P. 135-139 - février 2011 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.
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