In this study we want to find out more about an investigational drug, Nirogacestat, in people with ovarian granulosa cell tumors. The purpose of this research study is to investigate the safety and how well nirogacestat works in participants with relapsed/refractory ovarian granulosa cell tumors. Relapsed disease means a cancer has come back. Refractory disease means a cancer has stopped responding to treatment.
This phase 2 clinical trial will study the effectiveness of nirogacestat in ovarian granulosa cell tumors (OvGCTs).
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