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ENGOT-en11/GOG-3053/KEYNOTE-B21: a randomised, double-blind, phase III study of pembrolizumab or placebo plus adjuvant chemotherapy with or without radiotherapy in patients with newly diagnosed, high-risk endometrial cancer

T. Van Gorp, D. Cibula, W. Lv, F. Backes, F. Ortaç, K. Hasegawa, K. Lindemann, A. Savarese, A. Laenen, YM. Kim, L. Bodnar, MP. Barretina-Ginesta, L. Gilbert, B. Pothuri, X. Chen, MB. Flores, T. Levy, N. Colombo, C. Papadimitriou, T. Buchanan, LC....

. 2024 ; 35 (11) : 968-980. [pub] 20240914

Jazyk angličtina Země Anglie, Velká Británie

Typ dokumentu časopisecké články, klinické zkoušky, fáze III, randomizované kontrolované studie, multicentrická studie

Perzistentní odkaz   https://www.medvik.cz/link/bmc25003646

BACKGROUND: Pembrolizumab plus chemotherapy provides clinically meaningful benefit as first-line therapy for advanced (locoregional extension and residual disease after surgery)/metastatic/recurrent mismatch repair-proficient (pMMR) and mismatch repair-deficient (dMMR) endometrial cancer, with greater magnitude of benefit in the dMMR phenotype. We evaluated the addition of pembrolizumab to adjuvant chemotherapy (with/without radiation therapy) among patients with newly diagnosed, high-risk endometrial cancer without any residual macroscopic disease following curative-intent surgery. METHODS: We included patients with histologically confirmed high-risk [International Federation of Gynecology and Obstetrics (FIGO) stage I/II of non-endometrioid histology or endometrioid histology with p53/TP53 abnormality, or stage III/IVA of any histology] endometrial cancer following surgery with curative intent and no evidence of disease postoperatively, with no prior radiotherapy or systemic therapy. Patients were randomised to pembrolizumab 200 mg or placebo every 3 weeks (Q3W) for six cycles added to carboplatin-paclitaxel followed by pembrolizumab 400 mg or placebo every 6 weeks (Q6W) for six cycles per treatment assignment. Radiotherapy was at the investigator's discretion. The primary endpoints were investigator-assessed disease-free survival (DFS) and overall survival in the intention-to-treat population. RESULTS: A total of 1095 patients were randomised (pembrolizumab, n = 545; placebo, n = 550). At this interim analysis (data cut-off, 4 March 2024), 119 (22%) DFS events occurred in the pembrolizumab group and 121 (22%) occurred in the placebo group [hazard ratio 1.02, 95% confidence interval (CI) 0.79-1.32; P = 0.570]. Kaplan-Meier estimates of 2-year DFS rates were 75% and 76% in the pembrolizumab and placebo groups, respectively. The hazard ratio for DFS was 0.31 (95% CI 0.14-0.69) in the dMMR population (n = 281) and 1.20 (95% CI 0.91-1.57) in the pMMR population (n = 814). Grade ≥3 adverse events (AEs) occurred in 386 of 543 (71%) and 348 of 549 (63%) patients in the pembrolizumab and placebo groups, respectively. No treatment-related grade 5 AEs occurred. CONCLUSIONS: Adjuvant pembrolizumab plus chemotherapy did not improve DFS in patients with newly diagnosed, high-risk, all-comer endometrial cancer. Preplanned subgroup analyses for stratification factors suggest that pembrolizumab plus chemotherapy improved DFS in patients with dMMR tumours. Safety was manageable. TRIAL REGISTRATION: ClinicalTrials.gov, NCT04634877; EudraCT, 2020-003424-17. RESEARCH SUPPORT: Merck Sharp & Dohme LLC, a subsidiary of Merck & Co., Inc., Rahway, NJ, USA.

Ankara University School of Medicine Ankara Turkey

Aretaieio University Hospital National and Kapodistrian University of Athens Athens Greece

Belgian and Luxembourg Gynaecological Oncology Group Leuven Belgium

Catalan Institute of Oncology and Girona Biomedical Research Institute Medical School University of Girona Girona Spain

Central and Eastern European Gynecologic Oncology Group Prague Czech Republic

Centre Catherine de Sienne Hôpital Privé du Confluent Nantes France

Department of Clinical Oncology and Radiotherapy Mazovia Regional Hospital Siedlce Oncology Center Siedlce Poland

Department of Gynecologic Oncology Saitama Medical University International Medical Center Hidaka Saitama Prefecture Japan

Department of Gynecologic Oncology Women's Hospital School of Medicine Zhejiang University Hangzhou Zhejiang China

Department of Gynecological Oncology Oslo University Hospital Oslo Norway

Department of Gynecology and Obstetrics University Hospital Muenster Muenster Germany

Department of Gynecology Obstetrics and Neonatology General University Hospital Prague 1st Faculty of Medicine Charles University Prague Czech Republic

Department of Medicine and Surgery University of Milan Bicocca Milan Italy

Department of Obstetrics and Gynecology and Medicine Division of Gynecologic Oncology Perlmutter Cancer Center NYU Langone Health New York USA

Department of Obstetrics and Gynecology Asan Medical Center University of Ulsan Seoul Republic of Korea

Department of Obstetrics and Gynecology Faculty Hospital Kralovske Vinohrady 3rd Faculty of Medicine Charles University Prague Czech Republic

Department of Obstetrics and Gynecology LSU Health Shreveport Shreveport USA

Department of Oncology Obstetrics and Gynecology Hospital of Fudan University Shanghai China

Division of Gynaecological Oncology University Hospital Leuven Leuven Cancer Institute Leuven Belgium

Division of Gynecologic Oncology McGill University Health Centre Montreal Canada

Division of Gynecologic Oncology Ohio State University and James Cancer Hospital Columbus USA

Faculty of Medicine Institute of Clinical Medicine University of Oslo Oslo Norway

Gerald Bronfman Department of Oncology McGill University Health Centre Montreal Canada

German Gynecological Oncology Group Wiesbaden Germany

GOG Foundation Philadelphia USA

Gynecologic Oncology Program European Institute of Oncology IRCCS Milan Italy

Gynecologic Oncology Unit Department of Obstetrics and Gynecology Israeli Society of Gynecology Oncology Wolfson Medical Center Affiliated with the Faculty of Medical and Health Sciences Tel Aviv University Holon Israel

Hellenic Cooperative Oncology Group Athens Greece

Instituto Oncológico Fundación Arturo López Pérez Santiago Chile

IRCCS Regina Elena National Cancer Institute Rome Italy

Jefferson Health Asplundh Cancer Pavilion Willow Grove USA

Leuven Biostatistics and Statistical Bioinformatics Center KU Leuven Leuven Belgium

Mario Negri Gynecologic Oncology Milan Italy

Merck and Co Inc Rahway USA

Mount Sinai Medical Center Miami Beach USA

MSD London UK

Multicenter Italian Trials in Ovarian Cancer and Gynecologic Malignancies Rome Italy

National Cancer Research Institute London UK

National Investigators Group for the Study of Ovarian and Breast Cancers Paris France

Nordic Society of Gynaecological Oncology Clinical Trial Unit Copenhagen Denmark

Polish Group of Gynaecological Oncology Warsaw Poland

Shanghai Gynecologic Oncology Group Shanghai China

Spanish Ovarian Cancer Research Group Madrid Spain

Turkish Society of Gynecologic Oncology Istanbul Turkey

University College London Hospitals and University College London London UK

University Hospital Schleswig Holstein Lubeck Germany

Willis Knighton Physician Network Shreveport USA

Women's Health Research Unit Research Institute McGill University Health Centre Montreal Canada

Citace poskytuje Crossref.org

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