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Purpose   Bevacizumab is a monoclonal antibody that targets vascular endothelial growth factor (VEGF) with demonstrated efficacy in combination with carboplatin and paclitaxel (PCB) for the treatment of advanced non–small-cell lung cancer (NSCLC). Administration of bevacizumab is postulated to decrease nitric oxide synthesis and lead to hypertension, which may be a physiological sign that the VEGF pathway is more actively being blocked and could result in improved outcomes.Patients and Methods   Eastern Cooperative Oncology Group (ECOG) 4599 randomly assigned patients with nonsquamous NSCLC to carboplatin and paclitaxel (PC) versus PCB. Hypertensive patients were compared with nonhypertensive patients with respect to overall survival (OS) and progression-free survival (PFS) using blood pressure data and adverse event data separately. High blood pressure (HBP) by the end of cycle 1 was defined as blood pressure &gt; 150/100 at any previous time or at least a 20-mmHg increase in diastolic blood pressure from baseline.Results   In a multivariable Cox model adjusting for HBP as a time-varying covariate, comparing those on PCB with HBP with those on PC gave an OS hazard ratio (HR) of 0.60 (95% CI, 0.43 to 0.81; P = .001); comparing those on PCB without HBP with those on PC alone, the OS HR was 0.86 (95% CI, 0.74 to 1.00; P = .05). Comparing the PCB HBP group with PC gave an adjusted PFS HR of 0.54 (95% CI, 0.41 to 0.73; P &lt; .0001) and comparing those on PCB without HBP to those on PC, the HR was 0.72 (95% CI, 0.62 to 0.84; P &lt; .0001). The 6-month cumulative incidence of hypertension was 6.2% (95% CI, 3.9% to 8.6%).Conclusion   Data from ECOG 4599 suggest that onset of HBP during treatment with PCB may be associated with improved outcomes, and additional studies of the downstream effects of VEGF suppression and hypertension are needed.

journal of clinical oncology

Clinical Course of Advanced Non–Small-Cell Lung Cancer Patients Experiencing Hypertension During Treatment With Bevacizumab in Combination With Carboplatin and Paclitaxel on ECOG 4599