Published in:
Open Access
01-08-2008 | PHASE III STUDIES
Gastrointestinal ulceration as a possible side effect of bevacizumab which may herald perforation
Authors:
J. Tol, A. Cats, L. Mol, M. Koopman, M. M. E. M. Bos, J. J. M. van der Hoeven, N. F. Antonini, J. H. J. M. van Krieken, C. J. A. Punt
Published in:
Investigational New Drugs
|
Issue 4/2008
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Summary
Chemotherapy plus bevacizumab is currently considered as the standard 1st line treatment of advanced colorectal cancer (ACC). Whereas GI perforation is a known side effect of bevacizumab, the development of GI ulcers has not been reported. We identified 18 patients with ACC who participated in a phase III multicentre trial which included chemotherapy and bevacizumab, who developed a GI ulcer (n = 6), perforation (n = 8) or both (n = 4). The risk of developing a symptomatic GI ulcer or perforation was 1.3% and 1.6%, respectively. Central review of the histology specimens showed ulceration and/or granulation tissue with neovascularisation. The majority (89%) of events developed early during treatment. Given these observations, as well as the relationship between VEGF and mucosal injury healing, we suggest that GI ulcers may occur as a side effect of treatment with bevacizumab and may herald perforation.