Summary
The purpose of this study is to evaluate the efficacy and safety of selinexor as a
maintenance treatment in patients with p53 wt endometrial carcinoma (EC), who have
achieved a partial response (PR) or complete response (CR) (per Response Evaluation
Criteria in Solid Tumors version 1.1 [RECIST v 1.1]) after completing at least 12 weeks
of platinum-based therapy. A total of 220 participants will be enrolled in the study and
randomized in a 1:1 ratio to maintenance therapy with either selinexor or placebo.