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Keunchil Park



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    ESMO-IASLC Best Abstracts (ID 62)

    • Event: ELCC 2019
    • Type: Proffered Paper session
    • Track:
    • Presentations: 1
    • Moderators:
    • Coordinates: 4/11/2019, 14:45 - 16:15, Room B
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      LBA1_PR - Nivolumab (nivo) plus ipilimumab (ipi), nivo, or placebo (pbo) as maintenance therapy in patients (pts) with extensive disease small cell lung cancer (ED-SCLC) after first-line (1L) platinum-based chemotherapy (chemo): Results from the double-blind, randomized phase III CheckMate 451 study (ID 683)

      14:45 - 16:15  |  Author(s): Keunchil Park

      • Abstract
      • Presentation
      • Slides

      Background

      In pts with ED-SCLC, response rates to 1L platinum-based chemo are high but lack durability. Treatments (txs) that prolong response duration and improve survival are needed. CheckMate 451 (NCT02538666) is a global, double-blind, phase 3 study of nivo+ipi or nivo vs pbo as maintenance therapy in pts with ED-SCLC who did not progress on 1L platinum-based chemo.

      a9ded1e5ce5d75814730bb4caaf49419 Methods

      Pts (N = 834) with ED-SCLC, ECOG performance status (PS) ≤ 1 and response or stable disease after 4 cycles of 1L platinum-based chemo were randomized 1:1:1 (3–9 weeks from last dose of 1L chemo or 3–11 weeks for pts who received prophylactic cranial irradiation [PCI]) to nivo 1 mg/kg + ipi 3 mg/kg Q3W intravenously (IV; 4 doses followed by nivo 240 mg Q2W IV; n = 279), nivo 240 mg Q2W IV (n = 280), or pbo (n = 275), stratified by PS, sex and prior PCI. Pts were treated up to 2 years or until progression or unacceptable toxicity. Primary endpoint was overall survival (OS) for nivo+ipi vs pbo. Secondary endpoints included OS for nivo vs pbo and progression-free survival (PFS) per blinded independent central review for nivo+ipi vs pbo and nivo vs pbo.

      20c51b5f4e9aeb5334c90ff072e6f928 Results

      Minimum study follow-up was 9 months. Baseline characteristics were balanced between arms. OS was not significantly prolonged with nivo+ipi vs pbo (HR, 0.92; 95% CI 0.75–1.12; P = 0.3693). OS was also not prolonged for nivo vs pbo (HR, 0.84; 95% CI 0.69–1.02), although not formally tested due to statistical hierarchy. PFS HRs vs pbo were: nivo+ipi, 0.72 (0.60–0.87); nivo, 0.67 (0.56–0.81). Rates of all-grade (grade 3–4) tx-related adverse events were: nivo+ipi, 86% (52%); nivo, 61% (12%); pbo, 50% (8%). Rates of discontinuation due to tx toxicity were: nivo+ipi, 31%; nivo, 9%; pbo, <1%. Tx-related deaths were: nivo+ipi, 7 (2.5%); nivo, 1 (<1%); pbo, 1 (<1%).

      fd69c5cf902969e6fb71d043085ddee6 Conclusions

      In CheckMate 451, maintenance therapy with nivo+ipi (primary endpoint) or nivo did not prolong OS vs pbo for ED-SCLC patients who did not progress on 1L chemo. Safety profiles of nivo+ipi and nivo were consistent with previous reports at this dose/schedule in SCLC.

      b651e8a99c4375feb982b7c2cad376e9 Clinical trial identification

      NCT02538666; Release date: 2 September 2015.

      7a6a3ffa2dadc03a6151ee2c4d6fa383 Editorial acknowledgement

      Writing and editorial assistance was provided by Cristina Tomas, PhD, of Caudex and funded by Bristol-Myers Squibb.

      934ce5ff971f1ab29e840a35e3ca96e9 Legal entity responsible for the study

      Bristol-Myers Squibb.

      213f68309caaa4ccc14d5f99789640ad Funding

      Bristol-Myers Squibb.

      682889d0a1d3b50267a69346a750433d Disclosure

      T.K. Owonikoko: Research support: AbbVie, Adaptimmune, Amgen, AstraZeneca, Bristol-Myers Squibb, Corvus, G1 Therapeutics, Novartis, Pfizer, Regeneron/Sanofi; Advisory board: AbbVie, Amgen, AstraZeneca, Boehringer Ingelheim, Bristol-Myers Squibb, Lilly/Armo, PharmaMar, Xcovery; IRC/DSMB: EMD Serono, Roche/Genentech; Co-founder: Cambium Oncology. H.R. Kim: Speakers bureau, honoraria: AstraZeneca, ONO/Bristol-Myers Squibb; Consultant: Roche. R. Govindan: Consultant/advisory committees: AbbVie, Adaptimmune, AstraZeneca, Celgene, Ignyta, Inivata, Merck, Nektar, Pfizer, Roche. N. Ready: Advisor: AbbVie, G1 therapeutics, Merck, Novartis; Advisor/speaker: Bristol-Myers Squibb, Celgene; Education: AstraZeneca, EMD Serrano, Tesaro. M. Reck: Honoraria for lectures and consultancy: AbbVie, Amgen, AstraZeneca, Bristol-Myers Squibb, Boehringer Ingelheim, Celgene, Lilly, Merck, MSD, Novartis, Pfizer, Roche. S. Peters: Honoraria, education grants, consultancy, attended advisory boards, and/or provided lectures: AbbVie, Amgen, AstraZeneca, Bayer, Biocartis, Boehringer Ingelheim, Bristol-Myers Squibb, Clovis, Daiichi Sankyo, Debiopharm, Eli Lilly, F. Hoffmann-La Roche, Foundation Medicine, Illumina, Janssen, Merck Sharp and Dohme, Merck Serono, Merrimack, Novartis, PharmaMar, Pfizer, Regeneron, Sanofi, Seattle Genetics, Takeda. A. Navarro: Advisory role: Boehringer Ingelheim, Bristol-Myers Squibb, Pfizer, Roche; Safety committee member: Oryzon Genomics; Travel support: Boehringer Ingelheim, Pfizer. J. Rodriguez-Cid: Investigational resources: AstraZeneca, Bayer, Boehringer Ingelheim, Bristol-Myers Squibb, Celgene, Eli Lilly, MSD, Novartis, Roche, Takeda; Advisory role: AbbVie, AstraZeneca, Bayer, Boehringer Ingelheim, Bristol-Myers Squibb, Eisai, MSD, Novartis, Pfizer, Roche, Takeda; Speaker role: AstraZeneca, Bayer, Boehringer Ingelheim, Bristol-Myers Squibb, Eli Lilly, MSD, Novartis, Pfizer, Roche, Takeda. M. Schenker: For clinical trial participation (as PI/SI) my institution and I have received funds from: AbbVie, Amgen, Astellas, AstraZeneca, Bayer, Bioven, Bristol-Myers Squibb, Eisai, Eli Lilly, Gilead, Merck Serono, MSD, Mylan, Nano Carrier, Novartis, Pfizer, PharmaMar, Regeneron, Roche, Samsung D. Morgensztern: Advisory board: AbbVie, Bristol-Myers Squibb, PharmaMar, Takeda. J. Fairchild: Stock ownership: Bristol-Myers Squibb. C. Baudelet: Employee: Bristol-Myers Squibb. K. Park: Advisor: Bristol-Myers Squibb. All other authors have declared no conflicts of interest.

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    Optimising treatment in stage III (ID 10)

    • Event: ELCC 2019
    • Type: Educational session
    • Track:
    • Presentations: 1
    • Moderators:
    • Coordinates: 4/10/2019, 16:30 - 18:00, Room A
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      Integration of I-O in the management of stage III (ID 26)

      16:30 - 18:00  |  Presenting Author(s): Keunchil Park

      • Abstract
      • Presentation
      • Slides

      Abstract not provided

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