BACKGROUND: Hypertension is a common toxicity of bevacizumab, but the frequency of assessment of blood pressure and standardized grading remain to be defined. This study aimed to describe the incidence of bevacizumab-induced hypertension and factors associated with its development, then to retrospectively assess its relation with activity. PATIENTS AND METHODS: One hundred nineteen patients with advanced or metastatic non-small cell lung cancer, colorectal cancer, or ovarian cancer receiving bevacizumab (2.5 mg/kg per week) and chemotherapy were eligible for this analysis. Blood pressure was measured at home twice daily according to international guidelines, and graded according to the National Cancer Institute Common Toxicity Criteria (NCI-CTC), version 3.0, and the European Society of Hypertension (ESH) criteria. RESULTS: Home-based measurements detected significantly more cases of hypertension than in-clinic measurements did, according to the ESH criteria (54.6% versus 24.4%; p < .001) or the NCI-CTC (42.9% versus 22.7%; p = .0015). Very early hypertension (within 42 days, according to the ESH criteria) but not hypertension (occurring at any time during treatment period) was predictive of response (p = .0011 and p = .26, respectively). CONCLUSIONS: Our preliminary results indicate that home-based measurement and grading according to the ESH criteria represents a reliable method to detect bevacizumab-induced hypertension. Whether hypertension is a biomarker of bevacizumab activity remains to be determined in a prospective study.
BACKGROUND:Hypertension is a common toxicity of bevacizumab, but the frequency of assessment of blood pressure and standardized grading remain to be defined. This study aimed to describe the incidence of bevacizumab-induced hypertension and factors associated with its development, then to retrospectively assess its relation with activity. PATIENTS AND METHODS: One hundred nineteen patients with advanced or metastatic non-small cell lung cancer, colorectal cancer, or ovarian cancer receiving bevacizumab (2.5 mg/kg per week) and chemotherapy were eligible for this analysis. Blood pressure was measured at home twice daily according to international guidelines, and graded according to the National Cancer Institute Common Toxicity Criteria (NCI-CTC), version 3.0, and the European Society of Hypertension (ESH) criteria. RESULTS: Home-based measurements detected significantly more cases of hypertension than in-clinic measurements did, according to the ESH criteria (54.6% versus 24.4%; p < .001) or the NCI-CTC (42.9% versus 22.7%; p = .0015). Very early hypertension (within 42 days, according to the ESH criteria) but not hypertension (occurring at any time during treatment period) was predictive of response (p = .0011 and p = .26, respectively). CONCLUSIONS: Our preliminary results indicate that home-based measurement and grading according to the ESH criteria represents a reliable method to detect bevacizumab-induced hypertension. Whether hypertension is a biomarker of bevacizumab activity remains to be determined in a prospective study.
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