Keytruda (pembrolizumab) + chemoradiotherapy (CRT) significantly improved overall survival versus CRT alone in patients with newly diagnosed high-risk locally advanced cervical cancer.- Merck Inc.,
Merck Inc., known as MSD outside of the United States and Canada, announced that the Phase III KEYNOTE-A18 trial, also known as ENGOT-cx11/GOG-3047, investigating Keytruda, Merck’s anti-PD-1 therapy, in combination with chemoradiotherapy (CRT) met its primary endpoint of overall survival (OS) for the treatment of newly diagnosed patients with high-risk locally advanced cervical cancer.
At a pre-specified interim analysis conducted by an independent Data Monitoring Committee, Keytruda in combination with concurrent CRT showed a statistically significant and clinically meaningful improvement in OS versus concurrent CRT alone. The safety profile of Keytruda in this trial was consistent with that observed in previously reported studies; no new safety signals were identified. Results will be presented at an upcoming medical meeting and shared with regulatory authorities worldwide.
As previously reported, KEYNOTE-A18 met its other primary endpoint of progression-free survival (PFS) in 2023. These PFS data were presented at the European Society for Medical Oncology (ESMO) Congress 2023 and supported the FDA approval of Keytruda in combination with CRT for the treatment of patients with FIGO (International Federation of Gynecology and Obstetrics) 2014 Stage III-IVA cervical cancer in January 2024.
“This is the first Phase III trial in which an immunotherapy-based regimen has shown a statistically significant and clinically meaningful improvement in overall survival compared to chemoradiotherapy alone,” said Dr. Gursel Aktan, vice president, global clinical development, Merck Research Laboratories. “Building on the positive progression-free survival findings from this study, these results underscore our commitment to exploring the role of Keytruda across different types of cancers in earlier stages of disease, where there is a greater potential for better outcomes.”
“These findings are important for patients and the medical community alike and reinforce previous data from the KEYNOTE-A18 trial, now showing this regimen has the potential to extend the lives of patients with locally advanced cervical cancer,” said Prof. Domenica Lorusso, the study’s overall principal investigator, lead investigator for ENGOT, and professor of Obstetrics and Gynecology at Humanitas University.
In the U.S.Keytruda has two additional approved indications in cervical cancer: in combination with chemotherapy, with or without bevacizumab, for the treatment of patients with persistent, recurrent, or metastatic cervical cancer whose tumors express PD-L1 [Combined Positive Score (CPS) greater than 1] as determined by an FDA-approved test; and as a single agent, for the treatment of patients with recurrent or metastatic cervical cancer with disease progression on or after chemotherapy whose tumors express PD-L1 (CPS greater than 1) as determined by an FDA-approved test.
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