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  • Title: A phase II study of bevacizumab with carboplatin-pemetrexed in non-squamous non-small cell lung carcinoma patients with malignant pleural effusions: North East Japan Study Group Trial NEJ013A.
    Author: Usui K, Sugawara S, Nishitsuji M, Fujita Y, Inoue A, Mouri A, Watanabe H, Sakai H, Kinoshita I, Ohhara Y, Maemondo M, Kagamu H, Hagiwara K, Kobayashi K, North East Japan Study Group.
    Journal: Lung Cancer; 2016 Sep; 99():131-6. PubMed ID: 27565928.
    Abstract:
    BACKGROUND: Vascular endothelial growth factor (VEGF) plays a pivotal role in the pathogenesis of malignant pleural effusion (MPE). Here, a multicenter phase II trial to evaluate bevacizumab in non-squamous non-small cell lung carcinoma patients with MPE was conducted. METHODS: Patients having MPE with no prior treatment and performance status of 0-2 received carboplatin (area under the curve: AUC 6; up to 6 cycles) and pemetrexed (500mg/m(2)) with bevacizumab (15mg/kg) every 3 weeks. The primary endpoint was the control rate of MPE without pleurodesis at 8 weeks after treatment. VEGF levels in plasma and MPE were measured by enzyme immunoassay. RESULTS: Of 30 patients entered (median 66 years; 24 males; adenocarcinoma; 4 epidermal growth factor receptor: EGFR mutations), 28 patients (2 withdrawn patients) were given a median of 4 cycles of carboplatin, and 68% of the patients received maintenance pemetrexed with bevacizumab (median 8 cycles). At eight weeks, MPE was controlled without pleurodesis in 93% of treated patients (95% confidence interval: 77-99%). At the median follow-up time of 12.8 months, 78.6% of the cases required no pleurodesis. Response rate was 46%, and median progression-free survival (PFS) and overall survival (OS) were 8.2 months and 18.6 months, respectively. Toxicities of grade ≥3 included neutropenia (28.6%), thrombocytopenia (28.6%), proteinuria (3.6%), and hypertension (3.6%). Assessment of VEGF levels before treatment indicated that patients with low VEGF (<1000pg/ml) in MPE frequently needed pleurodesis (p=0.011), and that high VEGF (≥100pg/ml) in plasma was indicative of poor prognosis in the context of PFS (p=0.012). CONCLUSION: The combination of bevacizumab with carboplatin and pemetrexed demonstrated efficacy with acceptable toxicities in patients with MPE.
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