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First-line nivolumab plus ipilimumab with two cycles of chemotherapy versus chemotherapy alone (four cycles) in advanced non-small-cell lung cancer: CheckMate 9LA 2-year update

M. Reck 1 T.-E. Ciuleanu 2 M. Cobo 3 M. Schenker 4 B. Zurawski 5 J. Menezes 6 E. Richardet 7 J. Bennouna 8 E. Felip 9 O. Juan-Vidal 10 A. Alexandru 11 H. Sakai 12 A. Lingua 13 F. Reyes 14 P.-J. Souquet 15 P. de Marchi 16 C. Martin 17 M. Pérol 18 A. Scherpereel 19 S. Lu 20 L. Paz-Ares 21 D.P. Carbone 22 A. Memaj 23 S. Marimuthu 23 X. Zhang 23 P. Tran 23 T. John 24 
Abstract : Background: To further characterize survival benefit with first-line nivolumab plus ipilimumab with two cycles of chemotherapy versus chemotherapy alone, we report updated data from the phase III CheckMate 9LA trial with a 2-year minimum follow-up. Patients and methods: Adult patients were treatment naïve, with stage IV/recurrent non-small-cell lung cancer, no known sensitizing EGFR/ALK alterations, and an Eastern Cooperative Oncology Group performance status ≤1. Patients were randomized 1 : 1 to nivolumab 360 mg every 3 weeks plus ipilimumab 1 mg/kg every 6 weeks with two cycles of chemotherapy, or four cycles of chemotherapy. Updated efficacy and safety outcomes are reported, along with progression-free survival (PFS) after next line of treatment (PFS2), treatment-related adverse events (TRAEs) by treatment cycle, and efficacy outcomes in patients who discontinued all treatment components in the experimental arm due to TRAEs. Results: With a median follow-up of 30.7 months, nivolumab plus ipilimumab with chemotherapy continued to prolong overall survival (OS) versus chemotherapy. Median OS was 15.8 versus 11.0 months [hazard ratio 0.72 (95% confidence interval 0.61-0.86)]; 2-year OS rate was 38% versus 26%. Two-year PFS rate was 20% versus 8%. ORR was 38% versus 25%, respectively; 34% versus 12% of all responses were ongoing at 2 years. Median PFS2 was 13.9 versus 8.7 months. Improved efficacy outcomes in the experimental versus control arm were observed across most subgroups, including by programmed death-ligand 1 and histology. No new safety signals were observed; onset of grade 3/4 TRAEs was mostly observed during the first two treatment cycles in the experimental arm. In patients who discontinued all components of nivolumab plus ipilimumab with chemotherapy treatment due to TRAEs (n = 61) median OS was 27.5 months; 56% of responders had an ongoing response ≥1 year after discontinuation. Conclusions: With a 2-year minimum follow-up, nivolumab plus ipilimumab with two cycles of chemotherapy provided durable efficacy benefits over chemotherapy with a manageable safety profile and remains an efficacious first-line treatment of advanced non-small-cell lung cancer.
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https://www.hal.inserm.fr/inserm-03540859
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Submitted on : Monday, January 24, 2022 - 11:46:13 AM
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M. Reck, T.-E. Ciuleanu, M. Cobo, M. Schenker, B. Zurawski, et al.. First-line nivolumab plus ipilimumab with two cycles of chemotherapy versus chemotherapy alone (four cycles) in advanced non-small-cell lung cancer: CheckMate 9LA 2-year update. ESMO Open, European Society for Medical Oncology, 2021, 6 (5), pp.100273. ⟨10.1016/j.esmoop.2021.100273⟩. ⟨inserm-03540859⟩

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