GSK Jemperli Trial Meets Endpoint

Share

GSK says a Phase 3 trial evaluating its Jemperli (dostarlimab) in adult patients with primary advanced or recurrent endometrial cancer met its primary endpoint of overall survival (OS). The trial (RUBY/ENGOT-EN6/GOG3031/NSGO) is investigating dostarlimab plus standard-of-care chemotherapy (carboplatin and paclitaxel), followed by dostarlimab as a single agent, compared to placebo plus chemotherapy followed by placebo.

“A clinically meaningful OS benefit was observed in both prespecified subpopulations in the trial: mismatch repair deficient (dMMR)/microsatellite instability-high (MSI-H) and mismatch repair proficient (MMRp)/microsatellite stable (MSS) patient subgroups,” the company says. Previously, the trial met its other primary endpoint of progression-free survival, demonstrating a 72% and 36% reduction in the risk of disease progression or death observed in the studied population, it adds.

Jemperli is described as a programmed death receptor-1 (PD-1)-blocking antibody that binds to the PD-1 receptor and blocks its interaction with the PD-1 ligands PD-L1 and PD-L2. It is currently indicated in combination with carboplatin and paclitaxel, followed by single agent Jemperli for treating adult patients with primary advanced or recurrent endometrial cancer that is mismatch repair deficient.

Read more