Abstract
•Progestins can produce clinical benefit in a subset of women with metastatic endometrial cancer.•Corticosteroid-related effects of megestrol can cause morbidity over the long term.•Norethindrone is a progestin without corticosteroid side effects.•A switch from megestrol to norethindrone decreased toxicity with continued benefit.•A clinical trial of norethindrone for this population of patients would be welcome.