Phase II trial of carboplatin, nab-paclitaxel and bevacizumab for advanced non-squamous non-small cell lung cancer (CARNAVAL study; TORG1424/OLCSG1402)
ANNALS OF ONCOLOGY(2019)
Abstract
Abstract Background Nanoparticle albumin-bound paclitaxel (nab-PTX) + carboplatin (Cb) therapy is one of the standard platinum-containing chemotherapy regimens for patients with advanced non-small cell lung cancer (NSCLC). Adding the anti-vascular endothelial growth factor antibody bevacizumab (BEV) to chemotherapy is an effective treatment option for non-squamous NSCLC. Because the efficacy and safety of the Cb + nab-PTX + BEV triplet regimen has not yet been assessed, we conducted a multicenter, open-label, phase I/II trial of Cb + nab-PTX + BEV therapy for patients with NSCLC. The phase II trial was based on the drug dose and schedule determined in the phase I trial. Methods In this phase II trial, the required number of patients was calculated to be 49 cases with α = 0.05 (one-sided) and β = 0.1 assuming a threshold response rate of 30% and an expected response rate of 50%. The patients were to receive 4–6 cycles of Cb (area under the curve = 6) + nab-PTX (100 mg/m2 on days 1, 8 and 15) + BEV (15 mg/kg on day 1) followed by a maintenance dose of nab-PTX + BEV every 3 weeks until disease progression. The primary endpoint was the overall response rate (ORR), and the secondary endpoints included overall survival (OS), progression free survival (PFS) time and toxicity. Results The trial was terminated early because of slow patient accrual. Finally, 47 cases were registered, and the main analysis was performed in 46 cases, excluding one case who was unqualified. The median age of the patients was 66 years. The transition percentage to maintenance therapy was 58.7%. The ORR based on central judgment was 56.5% (26/46 cases) with a 95% confidence interval (CI) of 42.2–70.8%, and the primary endpoint was met. The median PFS and OS were 7.79 months and 18.9 months, respectively. The main toxicity was myelosuppression, with grade 3–4 neutropenia (72.0%), anemia (28.0%), thrombocytopenia (14.0%) and febrile neutropenia (2.0%). The grade 3–4 sensory and motor neuropathy commonly seen with paclitaxel was 0%. All adverse events were manageable, and there was no treatment-related death. Conclusions Cb + nab-PTX + BEV therapy is a favorable and well-tolerated treatment for patients with advanced non-squamous NSCLC. Clinical trial identification UMI14560. Legal entity responsible for the study TORG/OLCSG. Funding Taiho Pharmaceutical CO., LTD. Disclosure T. Kubo: Honoraria (self): Taiho pharmaceutical; Honoraria (self): Chugai pharmaceutical; Honoraria (self): BMS. A. Bessho: Honoraria (self): Taiho pharmaceutical; Honoraria (self): Chugai pharmaceutical. A. Morita: Honoraria (self): Chugai pharmaceutical. T. Yokoyama: Honoraria (self): Taiho pharmaceutical; Honoraria (self): Chugai pharmaceutical. K. Kaira: Honoraria (self): Taiho pharmaceutical; Honoraria (self): BMS. T. Harada: Honoraria (self): Taiho pharmaceutical. T. Shimokawa: Research grant / Funding (institution): Taiho pharmaceutical; Research grant / Funding (institution): Chugai pharmaceutical; Research grant / Funding (institution): BMS. K. Kiura: Research grant / Funding (institution): Chugai pharmaceutical; Research grant / Funding (institution): BMS; Research grant / Funding (institution): Taiho pharmaceutical. H. Okamoto: Research grant / Funding (institution): Taiho pharmaceutical; Research grant / Funding (institution): BMS; Research grant / Funding (institution): Chugai pharmaceutical. All other authors have declared no conflicts of interest.
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Key words
cell lung cancer,lung cancer,bevacizumab,carboplatin,nab-paclitaxel,non-squamous,non-small
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