GSK File sBLA for Jemperli in Endometrial Cancer

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FDA has accepted for review a GSK supplemental BLA for Jemperli (dostarlimab) in combination with chemotherapy for treating adult patients with mismatch repair deficient (dMMR)/microsatellite instability-high primary advanced or recurrent endometrial cancer. “If approved in this patient population, dostarlimab plus chemotherapy could represent the first meaningful frontline treatment advancement in decades for patients with primary advanced or recurrent endometrial cancer,” the company says. The agency set a 9/23 user fee review action target date.

The sBLA is based on interim results from the company’s RUBY/ENGOT-EN6/GOG3031/NSGO Phase 3 trial investigating Jemperli (dostarlimab) plus standard-of-care chemotherapy (carboplatin-paclitaxel) followed by dostarlimab compared to chemotherapy plus placebo followed by placebo in adult patients with primary advanced or recurrent endometrial cancer. Trial data, according to the company, showed a “statistically significant and clinically meaningful improvement in progression-free survival…”

After first obtaining accelerated approval, GSK earlier this year was granted full approval for Jemperli and its use in adult patients with dMMR recurrent or advanced endometrial cancer that has progressed on or following a prior platinum-containing regimen in any setting and are not candidates for curative surgery or radiation (see earlier story).

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