Lenvatinib and pembrolizumab in the treatment of metastatic endometrial cancer: literature review and case report

Abstract

In 2019 in Russia endometrial carcinoma was diagnosed in 27151 patients, 6820 women died from the disease. The standard of frontline therapy for patients with advanced endometrial carcinoma is platinum and taxane-based chemotherapy with satisfactory efficacy – the median progression-free survival is about 13 months, and up to 50% of patients achieve objective response to therapy. On the other hand, for patients with recurrent endometrial cancer after frontline chemotherapy the results of chemotherapy remained generally unsatisfactory, the objective response rate to standard treatment was about 10 to 15%. During the last few years there significant progress has been made in this area – studies identified a subgroup of patients with a high level of microsatellite instability (MSI-high) highly sensitive to pembrolizumab therapy. In this subset of patients, who account for up to 25% of patients with metastatic endometrial cancer, the objective response rate to pembrolizumab monotherapy is up to 57%. Further studies have shown that the addition of lenvatinib to pembrolizumab therapy may be a highly effective therapeutic option for patients without MSI-high. This article describes a clinical case of the successful therapy of a patient with platinumresistant endometrial carcinoma with a combination of pembrolizumab and lenvatinib.