GSK Plc has received a new indication from the US Food and Drug Administration for its endometrial cancer medicine Jemperli (dostarlimab) that significantly increases the scope of its coverage. Jemperli is a checkpoint inhibitor that has already been approved for three endometrial cancer indications and for the treatment of patients with mismatch repair-deficient advanced solid tumours. Mismatch repair is a process that corrects errors during the replication of DNA. When this process fails, it can cause cancer.