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Introduction Dans l’essai CM 227 partie 1, l’association NIVO + IPI a ameliore la survie globale (OS) en 1L de traitement du CBNPC avance, independamment de l’expression de PD-L1. CM 9LA ( NCT03215706 ) est une etude randomisee de phase 3 evaluant l’association NIVO + IPI + 2 cycles CT vs CT en 1L de traitement du CBNPC avance. Methodes Les adultes atteints d’un CBNPC avance, naifs de traitement, ont ete randomises dans les groupes NIVO 360 mg Q3W + IPI 1 mg/kg Q6W + CT (2 cycles) (n = 361) ou CT seule (4 cycles) (n = 358), stratifies selon le statut PD-L1 ( Resultats Lors d’une analyse intermediaire pre-specifiee (suivi minimum : 8,1 mois), l’OS etait prolongee significativement avec NIVO + IPI + CT vs CT (HR : 0,69, IC a 96,71 %C : 0,55–0,87 ; p = 0,0006), de meme pour la PFS et l’ORR. Avec un suivi plus long (minimum 12,7 mois), l’OS restait plus importante avec NIVO + IPI + CT vs CT : mediane 15,6 vs 10,9 mois (HR : 0,66, IC a 95 % : 0,55–0,80) ; les taux d’OS a 1 an etaient de 63 % vs 47 %. Le benefice clinique etait coherent pour tous les criteres d’efficacite parmi les differents sous-groupes cles, y compris par PD-L1 et par histologie. Des evenements indesirables de grade 3–4 lies aux traitements etaient de 47 % dans le bras NIVO + IPI + CT vs 38 % dans le bras CT. Conclusion L’OS a ete amelioree de maniere statistiquement significative avec NIVO + IPI + CT vs CT (4 cycles) en 1L de traitement du CBNPC avance. Aucun nouveau signal de securite n’a ete identifie.

Background Part 1 of CheckMate 227 (NCT02477826), a phase III study in 1L NSCLC, has dual primary endpoints. The primary endpoint of progression-free survival (PFS) with NIVO + IPI vs chemo in patients (pts) with tumor mutational burden ≥ 10 mut/Mb was met, as reported previously. Here we present the primary endpoint of overall survival (OS) for NIVO + IPI vs chemo in pts with tumor PD-L1 expression ≥ 1%. Methods Pts were chemo-naive, with stage IV or recurrent NSCLC without EGFR or known ALK alterations, ECOG PS 0–1. Pts with PD-L1 ≥1% (n=1189) were randomized 1:1:1 to NIVO 3mg/kg Q2W + IPI 1mg/kg Q6W, NIVO 240mg Q2W, or histology-based chemo; pts with PD-L1 Results Baseline characteristics were balanced across tx arms. Minimum follow-up for the primary endpoint was 29.3mo. For pts with PD-L1 ≥ 1%, OS was significantly longer with NIVO + IPI vs chemo (HR 0.79, 97.72% CI: 0.65–0.96; P=0.007); PFS, objective response rates, and duration of response favored NIVO + IPI vs chemo. OS benefit was also observed in pts with PD-L1 Conclusions CheckMate 227 met its primary endpoint of significantly improved OS with NIVO + IPI vs chemo in 1L advanced NSCLC with PD-L1 ≥ 1%. OS was also improved with NIVO + IPI in PD-L1 Clinical trial identification NCT02477826; Release date: June 23, 2015. Editorial acknowledgement Writing and editorial assistance was provided by Namiko Abe, PhD, of Caudex, funded by Bristol-Myers Squibb. Legal entity responsible for the study Bristol-Myers Squibb. Funding Bristol-Myers Squibb. Disclosure S. Peters: Advisory / Consultancy, Research grant / Funding (institution): AbbVie, Amgen, AstraZeneca, Bayer, Biocartis, Bioinvent, Blueprint Medicines, Boehringer Ingelheim, Bristol-Myers Squibb, Clovis, Daiichi Sankyo, Debiopharm, Eli Lilly, F. Hoffmann-La Roche, Foundation Medicine, Illumina, Janssen, Merck Sharp and Dohme, M. S.S. Ramalingam: Research grant / Funding (institution): Bristol-Myers Squibb; Honoraria (self), Advisory / Consultancy, Research grant / Funding (institution), Personal fees, advisory board: Amgen; Honoraria (self), Advisory / Consultancy, Personal fees, advisory board: AbbVie; Honoraria (self), Advisory / Consultancy, Personal fees, advisory board: Lilly; Honoraria (self), Advisory / Consultancy, Personal fees, advisory board: Genentech; Honoraria (self), Advisory / Consultancy, Research grant / Funding (institution), Personal fees, advisory board: Takeda; Honoraria (self), Personal fees: Loxo; Research grant / Funding (institution): Advaxis; Honoraria (self), Research grant / Funding (institution), Personal fees: Tesaro; Honoraria (self), Research grant / Funding (institution), Personal fees: Merck; Honoraria (self), Research grant / Funding (self), Personal fees: AstraZeneca. L. Paz-Ares: Advisory / Consultancy, Advisory board: Genomica; Honoraria (self), Personal fees: Lilly, MSD, Roche, Pharmamar, Merck, AstraZeneca, Novartis, Boehringer Ingelheim, Celgene, Servier, Sysmex, Amgen, Incyte, Pfizer, Ipsen, Adacap, Sanofi, Bayer, Blueprint, Bristol-Myers Squibb; Advisory / Consultancy, Scientific advice/speaker: Lilly, MSD, Roche, Pharmamar, Merck, AstraZeneca, Novartis, Boehringer Ingelheim, Celgene, Servier, Sysmex, Amgen, Incyte, Pfizer, Ipsen, Adacap, Sanofi, Bayer, Blueprint, Bristol-Myers Squibb; Officer / Board of Directors, Co-founder and board member: Altum Sequencing; Research grant / Funding (institution), Grant: MSD, AstraZeneca, Pfizer, Bristol-Myers Squibb. H. Sakai: Research grant / Funding (institution), Grant: Ono Pharmaceutical Company, Bristol-Myers Squibb Company, AstraZeneca, Chugai Pharmaceutical Company, Merck & Co, Merck KGaA; Honoraria (self), Personal fees: Ono Pharmaceutical Company, Bristol-Myers Squibb Company, AstraZeneca, Chugai Pharmaceutical Company, Merck & Co, Merck KGaA. A. Vergnenegre: Honoraria (self), Advisory / Consultancy, Personal fees, travels for medical conferences and fees for consulting: Bristol-Myers Squibb, MSD, AstraZeneca. M. Reck: Honoraria (self), Advisory / Consultancy, Honoraria for lectures and consultancy: AbbVie, Amgen, AstraZeneca, Boehringer Ingelheim, Bristol-Myers Squibb, Celgene, Lilly, Merck, MSD, Novartis, Pfizer, Roche. H. Borghaei: Research grant / Funding (institution): Millennium, Merck/Celgene, Bristol-Myers Squibb/Lilly; Advisory / Consultancy: BMS, Lilly, Genentech, Celgene, Pfizer, Merck, EMD-Serono, Boehringer Ingelheim, AstraZeneca, Novartis, Genmab, Regeneron, BioNTech, Cantargia AB, Amgen, AbbVie, Axiom, PharmaMar, Takeda, Huya Bio, Diiachi; Advisory / Consultancy, Data Safety and Monitoring Board: University of Pennsylvania, CAR T Program; Takeda; Full / Part-time employment: Fox Chase Cancer Center. J.R. Brahmer: Advisory / Consultancy, Research grant / Funding (institution), Grant, advisory board: Bristol-Myers Squibb; Advisory / Consultancy, Advisory board: AstraZeneca, Genentech, Merck. K.J. O'Byrne: Advisory / Consultancy, Speaker Bureau / Expert testimony, Advisory board and speaker bureau fees and travel grants to national and international meetings: Bristol-Myers Squibb, Pfizer, AstraZeneca, MSD, Roche-Genentech, Boehringer Ingelheim; Advisory / Consultancy, Advisory board: Novartis, Teva, Natera; Advisory / Consultancy, Speaker Bureau / Expert testimony, Advisory board and speaker bureau fees: Janssen-Cilag; Speaker Bureau / Expert testimony, Speaker bureau: Mundipharma; Shareholder / Stockholder / Stock options, Shareholder: Carp Pharmaceuticals, Carpe Vitae Pharmaceuticals; Licensing / Royalties, Various patents issues with licensee as listed: Queensland University of Technology and Trinity College Dublin. W.J. Geese: Shareholder / Stockholder / Stock options, Full / Part-time employment: Bristol-Myers Squibb. P. Bhagavatheeswaran: Shareholder / Stockholder / Stock options, Full / Part-time employment: Bristol-Myers Squibb. F.E. Nathan: Full / Part-time employment: Bristol-Myers Squibb. M.D. Hellmann: Advisory / Consultancy, Fees for consulting: Genentech, Merck, Novartis, Janssen, Mirati, Syndax, Nektar, Blueprint Medicines; Advisory / Consultancy, Research grant / Funding (institution), Research grant to institution, fees for consulting and travel (grant, personal fees, non-financial support): Bristol-Myers Squibb; Advisory / Consultancy, Fees for consulting and travel: AstraZeneca; Advisory / Consultancy, Fees for consulting and equity: Shattuck Labs, Immunai; Licensing / Royalties, Patent filed by Memorial Sloan Kettering related to the use of tumor mutation burden to predict response to immunotherapy: PGDx. All other authors have declared no conflicts of interest.