Keytruda + chemotherapy met primary endpoint of progression-free survival (PFS) as first-line therapy for advanced or recurrent endometrial carcinoma.- Merck Inc.,
Merck Inc., known as MSD outside of the United States and Canada, announced that the Phase III NRG-GY018 trial evaluating Keytruda, Merck’s anti-PD-1 therapy, in combination with standard of care chemotherapy (carboplatin and paclitaxel) met its primary endpoint of progression-free survival (PFS) for the treatment of patients with stage III-IV or recurrent endometrial carcinoma regardless of mismatch repair status.
At a pre-specified interim analysis review conducted by an independent Data Monitoring Committee, Keytruda in combination with chemotherapy then continued as single agent every six weeks for up to 14 cycles demonstrated a statistically significant and clinically meaningful improvement in PFS compared with chemotherapy alone in these patients whose endometrial carcinoma was either mismatch repair proficient (pMMR) or mismatch repair deficient (dMMR).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 discussed with regulatory authorities.
“Patients with advanced stage or recurrent endometrial cancer, the most common type of gynecologic cancer in the U.S., face a poor prognosis with limited treatment options. This is particularly notable in patients who progress after prior platinum-based adjuvant therapy with disease not amenable to curative surgery or radiation,” said Dr. Ramez Eskander, principal investigator and gynecologic oncologist, University of California, San Diego. “In this study, pembrolizumab in combination with carboplatin and paclitaxel resulted in a statistically significant and clinically meaningful improvement in progression-free survival in both the dMMR and pMMR study populations. We look forward to presenting these exciting findings at an upcoming scientific congress.”
“In certain patients with advanced endometrial cancer who have progressed following prior systemic therapy and are not candidates for surgery or radiation, Keytruda has become an important treatment option, both as monotherapy and in combination,” said Dr. Eliav Barr, senior vice president, head of global clinical development and chief medical officer, Merck Research Laboratories. “These latest results in the first-line setting are very encouraging and show the potential of Keytruda plus chemotherapy for patients with stage III to IV or recurrent disease regardless of mismatch repair status. We thank our collaborators for their partnership on this study, and we are grateful to the patients and investigators for their participation.”
This trial was sponsored by the U.S. National Cancer Institute (NCI), part of the National Institutes of Health. NRG Oncology designed and led the trial with funding from the NCI and participation from all the National Clinical Trials Network (NCTN) Groups. Merck provided funding and support through a Cooperative Research and Development Agreement (CRADA) between Merck and NCI.
About NRG-GY018 :NRG-GY018 is a randomized, blinded, placebo-controlled Phase III trial (ClinicalTrials.gov, NCT03914612) evaluating Keytruda in combination with standard of care chemotherapy (paclitaxel and carboplatin) versus placebo plus standard of care chemotherapy alone for the treatment of measurable stage III, IVA, IVB or recurrent endometrial cancer in pMMR and dMMR cohorts. The primary endpoint is PFS, and secondary endpoints include overall survival, objective response rate, duration of response and safety. The trial enrolled 819 patients who were randomized to receive Keytruda plus chemotherapy every three weeks for approximately six cycles followed by Keytruda as a single agent every six weeks for up to 14 cycles, or placebo plus chemotherapy. Enrolled patients were required to have MMR testing prior to randomization; approximately 70% of patients were pMMR, and approximately 30% were dMMR.
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