NCT04221945

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Official title

A Randomized, Phase 3, Double-Blind Study of Chemoradiotherapy With or Without Pembrolizumab for the Treatment of High-risk, Locally Advanced Cervical Cancer (KEYNOTE-A18/ENGOT-cx11/GOG-3047)

Phase

Phase 3

Status

Completed

Conditions

Uterine Cervical Neoplasms

Interventions

Pembrolizumab; Placebo for pembrolizumab; Cisplatin; External Beam Radiotherapy (EBRT); Brachytherapy

Arms

• chemoradiotherapy + pembrolizumab · Experimental
• chemoradiotherapy + placebo for pembrolizumab · Experimental

Enrollment

1,060

Primary outcomes

• Progression-Free Survival (PFS) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) as Assessed by the Investigator
• Overall Survival (OS)

Sponsor

Merck Sharp & Dohme LLC with GOG Foundation, European Network of Gynaecological Oncological Trial Groups (ENGOT)

Start

May 12, 2020

Primary completion

Jan 7, 2025

Results posted

Yes

Registry record

NCT04221945 · updated Feb 20, 2026

• Lorusso D, Xiang Y, Hasegawa K, Scambia G, Leiva M, Ramos-Elias P, Acevedo A, Sukhin V, Cloven N, Pereira de Santana Gomes AJ, Contreras Mejia F, Reiss A, Ayhan A, Lee JY, Saevets V, Zagouri F, Gilbert L, Sehouli J, Tharavichitkul E, Lindemann K, Lazzari R, Chang CL, Lampe R, Zhu H, Oaknin A, Christiaens M, Polterauer S, Usami T, Li K, Yamada K, Toker S, Keefe SM, Pignata S, Duska LR; ENGOT-cx11/GOG-3047/KEYNOTE-A18 investigators. Pembrolizumab or placebo with chemoradiotherapy followed by pembrolizumab or placebo for newly diagnosed, high-risk, locally advanced cervical cancer (ENGOT-cx11/GOG-3047/KEYNOTE-A18): a randomised, double-blind, phase 3 clinical trial. Lancet. 2024 Apr 6;403(10434):1341-1350. doi: 10.1016/S0140-6736(24)00317-9. Epub 2024 Mar 20. PubMed 38521086
• Lorusso D, Xiang Y, Hasegawa K, Scambia G, Leiva M, Ramos-Elias P, Acevedo A, Cvek J, Randall L, Pereira de Santana Gomes AJ, Contreras Mejia F, Helpman L, Akilli H, Lee JY, Saevets V, Zagouri F, Gilbert L, Sehouli J, Tharavichitkul E, Lindemann K, Colombo N, Chang CL, Bednarikova M, Zhu H, Oaknin A, Christiaens M, Petru E, Usami T, Liu P, Yamada K, Toker S, Keefe SM, Pignata S, Duska LR; ENGOT-cx11/GOG-3047/KEYNOTE-A18 investigators. Pembrolizumab or placebo with chemoradiotherapy followed by pembrolizumab or placebo for newly diagnosed, high-risk, locally advanced cervical cancer (ENGOT-cx11/GOG-3047/KEYNOTE-A18): overall survival results from a randomised, double-blind, placebo-controlled, phase 3 trial. Lancet. 2024 Oct 5;404(10460):1321-1332. doi: 10.1016/S0140-6736(24)01808-7. Epub 2024 Sep 14. PubMed 39288779
• Randall L, Xiang Y, Matsumoto T, Giannarelli D, Milla DP, Lopez KA, Acevedo A, Vizkeleti J, Salani R, Nogueira-Rodrigues A, Mejia FC, Korach J, Akilli H, Lee JY, Saevets VV, Samouelian V, Sehouli J, Tharavichikul E, Sukhin V, Colombo N, Chang CL, Cueva JF, Lalondrelle S, Petru E, Szamreta E, Nguyen AM, Yamada K, Li K, Pignata S, Lorusso D. Patient-reported outcomes from the phase 3, randomized, double-blind, placebo-controlled ENGOT-cx11/GOG-3047/KEYNOTE-A18 study of pembrolizumab plus concurrent chemoradiotherapy in participants with high-risk locally advanced cervical cancer. Gynecol Oncol. 2025 Aug;199:88-95. doi: 10.1016/j.ygyno.2025.06.003. Epub 2025 Jun 30. PubMed 40592026