Randomized open-label controlled study of cancer vaccine OSE2101 versus chemotherapy in HLA-A2-positive patients with advanced non-small-cell lung cancer with resistance to immunotherapy: ATALANTE-1.

BACKGROUND

Patients with advanced non-small-cell lung cancer (NSCLC) treated with immune checkpoint blockers (ICBs) ultimately progress either rapidly (primary resistance) or after durable benefit (secondary resistance). The cancer vaccine OSE2101 may invigorate antitumor-specific immune responses after ICB failure. The objective of ATALANTE-1 was to evaluate its efficacy and safety in these patients.

PATIENTS AND METHODS

ATALANTE-1 was a two-step open-label study to evaluate the efficacy and safety of OSE2101 compared to standard-of-care (SoC) chemotherapy (CT). Patients with human leukocyte antigen (HLA)-A2-positive advanced NSCLC without actionable alterations, failing sequential or concurrent CT and ICB were randomized (2 : 1) to OSE2101 or SoC (docetaxel or pemetrexed). Primary endpoint was overall survival (OS). Interim OS futility analysis was planned as per Fleming design. In April 2020 at the time of interim analysis, a decision was taken to prematurely stop the accrual due to coronavirus disease 2019 (COVID-19). Final analysis was carried out in all patients and in the subgroup of patients with ICB secondary resistance defined as failure after ICB monotherapy second line ≥12 weeks.

RESULTS

Two hundred and nineteen patients were randomized (139 OSE2101, 80 SoC); 118 had secondary resistance to sequential ICB. Overall, median OS non-significantly favored OSE2101 over SoC {hazard ratio (HR) [95% confidence interval (CI)] 0.86 [0.62-1.19], P = 0.36}. In the secondary resistance subgroup, OSE2101 significantly improved median OS versus SoC [11.1 versus 7.5 months; HR (95% CI) 0.59 (0.38-0.91), P = 0.017], and significantly improved post-progression survival (HR 0.46, P = 0.004), time to Eastern Cooperative Oncology Group (ECOG) performance status deterioration (HR 0.43, P = 0.006) and Quality of Life Questionnaire Core 30 (QLQ-C30) global health status compared to SoC (P = 0.045). Six-month disease control rates and progression-free survival were similar between groups. Grade ≥3 adverse effects occurred in 11.4% of patients with OSE2101 and 35.1% in SoC (P = 0.002).

CONCLUSIONS

In HLA-A2-positive patients with advanced NSCLC and secondary resistance to immunotherapy, OSE2101 increased survival with better safety compared to CT. Further evaluation in this population is warranted.

Informations de copyright

Copyright © 2023 The Author(s). Published by Elsevier Ltd.. All rights reserved.

Déclaration de conflit d'intérêts

Disclosure BB: research funding, institution: Abbvie, Amgen, AstraZeneca, Chugai pharmaceutical, Daiichi-Sankyo, Ellipse pharma, EISAI, Genmab, Genzyme Corporation, Hedera Dx, Inivata, IPSEN, Janssen, MSD, Pharmamar, Roche-Genentech, Sanofi, Socar research, Taiho Oncology, Turning Point Therapeutics. EF: consulting or advisory role, personal: Amgen, AstraZeneca, Bayer, Bristol-Myers Squibb, Lilly, GlaxoSmithKline, Janssen, Merck Serono, Novartis, Pfizer, Sanofi, Takeda, Peptomyc, Daiichi Sankyo Europe GmbH, F. Hoffmann LaRoche, Merck Sharp & Dohme; speakers’ bureau, personal: AstraZeneca, Bristol-Myers Squibb, Lilly, Medscape, Merck Sharp & Dohme, PeerVoice, Pfizer, Takeda, Amgen, F. Hoffmann LaRoche, Janssen, Medical Trends, Merck Serono, Sanofi, Touch ONCOLOGY; other relationship, personal: GRIFOLS; research funding, institution: Merck, Merck KGaA. RGC: consulting or advisory role, personal: Roche/Genentech, MSD Oncology, AstraZeneca, Bristol-Myers Squibb, Pfizer, Novartis, Takeda, Boehringer Ingelheim, Janssen Oncology; speakers’ bureau, personal: Roche, AstraZeneca, Bristol-Myers Squibb, Pfizer, Novartis, Takeda, Boehringer Ingelheim, MSD Oncology, Sanofi/Aventis, Janssen Oncology, Amgen, Lilly; travel, accommodations, expenses, personal: Roche/Genentech, MSD Oncology, Pfizer. CM: consulting or advisory role, personal: Roche, Sanofi, Takeda, Pfizer, Bristol-Myers Squibb, MSD, AstraZeneca, Kephren, AMGEN, Janssen, GlaxoSmithKline; honoraria, personal: Roche, AstraZeneca, Kephren, Bristol-Myers Squibb, Pfizer, Sanofi, MSD, Takeda, Janssen; travel, accommodations, expenses, personal: MSD; other, uncompensated relationships: Boehringer Ingelheim. FC: consulting or advisory role, personal: Roche/Genentech, AstraZeneca/MedImmune, Pfizer, Bristol-Myers Squibb, Takeda, Lilly, MSD Oncology, Bayer, Amgen, Sanofi, PharmaMar, Novocure; honoraria, personal: Pfizer, Roche/Genentech, AstraZeneca/MedImmune, Lilly, MSD Oncology, Bristol-Myers Squibb, Takeda, Bayer, Amgen, Sanofi, PharmaMar, Novocure; travel, accommodations, expenses, personal: OSE Immunotherapeutics. WH: consulting or advisory role, personal: AstraZeneca, Janssen; honoraria, personal: MSD Oncology. FD: consulting or advisory role, institution: SIVAN Innovation; honoraria, personal: AstraZeneca, MSD, Ipsen, Roche Belgium, Pfizer/EMD Serono, Takeda; stock and other ownership interests, institution: Kelindi; other relationship, personal: Takeda, Novartis, Ipsen, Janssen-Cilag, Merck Serono, Chugai Pharma, Ferring. SV: consulting or advisory role, personal: Roche; company: Bristol-Myers Squibb, Janssen, Takeda, Reddy Pharma Iberia, Merck KGaA, Puma Biotechnology; speakers’ bureau, personal: Bristol-Myers Squibb, Roche, MSD, AstraZeneca Spain; travel, accommodations, expenses, personal: Roche, MSD, Merck KGaA. DD: consulting or advisory role, personal: BMS, OSE Immunotherapeutics, Amgen, AstraZeneca; honoraria, personal: AstraZeneca, BMS, Janssen, Amgen, Novartis, Sanofi Aventis, Ipsen, MSD, GSK, Hoffmann-La Roche, Pfizer, OSE Immunotherapeutics; research funding, institution: AstraZeneca, Chugaï, Hoffmann-La Roche, Lilly, BMS, MSD, Boehringer-Ingelheim, Pfizer, Takeda, Bayer, Janssen, Sanofi-Aventis; travel, accommodations, expenses, personal: Amgen, BMS, AstraZeneca, MSD, Novartis, Roche, Pfizer, Janssen, Takeda. DG: consulting or advisory role, personal: Eli Lilly, Novartis, AZ, BMS, Pfizer; speakers’ bureau, personal: Eli Lilly, Takeda, Novartis, BMS, MSD, Roche; travel, accommodations, expenses, personal: Amgen. GR: consulting or advisory role, personal: MSD, Astra Zeneca, BMS; honoraria, personal: Roche, MSD, Astra Zeneca; research funding, institution: Roche; travel, accommodations, expenses, personal: Roche, MSD, Astra Zeneca. MM: consulting or advisory role, personal: Alfasigma, Amgen, AstraZeneca, Bristol-Myers Squibb, GlaxoSmithKline, Incyte, Lilly, Merck Serono, MSD, Pierre Fabre, Roche, Sanofi; honoraria: Alfasigma, Amgen, AstraZeneca, Bristol-Myers Squibb, GlaxoSmithKline, Lilly, Merck Serono, MSD, Pierre Fabre, Roche, Sanofi, SciClone; stock and other ownership interests: Epigen Therapeutics, Theravance. AD: consulting or advisory role, personal: Novartis, Pfizer, Immunocore; research funding, institution: MSD; travel, accommodations, expenses, personal: MSD. BR: consulting or advisory role, personal: Amgen, AstraZeneca, BMS, Chugaï, Lilly, Roche, Takeda; speaker’s bureau: BMS, Roche; travel, accommodations, expenses, personal: BMS, Amgen, MSD, Roche, Novartis. WS: consulting or advisory role, personal: Roche, MSD, Novartis; honoraria, personal: Roche, MSD, Novartis. AZ: consulting or advisory role, personal: Boehringer Ingelheim, Roche, MSD, Oncotest/Rhenium, Lilly; honoraria, personal: MSD, Roche, AstraZeneca, Takeda, Novartis; stock and other ownership interests, personal: Nixio; research funding, institution: Bristol-Myers Squibb; travel, accommodations, expenses, personal: AstraZeneca, MSD, Roche. DC: employment, personal: OSE Immunotherapeutics; leadership, personal: OSE Immunotherapeutics; stock and other ownership interests, personal: OSE Immunotherapeutics. BV: employment, personal: OSE Immunotherapeutics; patents, royalties, other intellectual property, personal: uses of anti-SIRPa antibodies in the treatment of cancer; stock and other ownership interests, personal: OSE Immunotherapeutics. RD: consulting or advisory role, personal: Regeneron, Karyopharm Therapeutics; honoraria, personal: Roche/Genentech, Novartis, Pfizer, Bristol-Myers Squibb, Takeda, AstraZeneca, MSD Oncology, Boehringer Ingelheim, Seattle Genetics; travel, accommodations, expenses, personal: Roche, AstraZeneca. GG: consulting or advisory role, personal: Daiichi Sankyo, Novartis, Radiomics, Janssen Oncology, Sanofi, Eisai, Spectrum Pharmaceuticals, Sanofi/Regeneron; research funding, institution: MedImmune, Karyopharm Therapeutics, Cantargia AB; starting in September 2022, employee of Amgen. All other authors have declared no conflicts of interest.