U.S.-listed shares of GlaxoSmithKline GSK, 0.12% were down 1.4% in trading on Thursday after the Food and Drug Administration said it had granted accelerated approval to the company's endometrial cancer treatment. The immunotherapy, which was called dostarlimab and is now named Jemperli, is approved to treat patients with severe forms of this kind of cancer who have a genetic feature known as dMMR.