Jemperli plus Zejula combo significantly improved progression-free survival in primary advanced or recurrent endometrial cancer: GSK

London: GSK plc has announced positive headline results from a planned analysis of Part 2 of the RUBY/ENGOT-EN6/GOG3031/NSGO phase III trial investigating Jemperli (dostarlimab) plus standard-of-care chemotherapy (carboplatin and paclitaxel), followed by dostarlimab plus Zejula (niraparib) as maintenance therapy, in adult patients with primary advanced or recurrent endometrial cancer.

The trial, which evaluated this combination against placebo plus chemotherapy followed by placebo, met its primary endpoint of progression-free survival (PFS), with a statistically significant and clinically meaningful benefit observed in both the overall patient population and in a subpopulation of patients with mismatch repair proficient/microsatellite stable (MMRp/MSS) tumours.

Endometrial cancer is found in the inner lining of the uterus, known as the endometrium. Endometrial cancer is the most common gynaecologic cancer in developed countries, with approximately 417,000 new cases reported each year worldwide, and incidence rates are expected to rise by almost 40% between 2020 and 2040. Approximately 15-20% of patients with endometrial cancer will be diagnosed with advanced disease at the time of diagnosis.