The study is looking at a potential new medication (an "investigational medication") for women with moderate to severe endometriosis-related pain. Researchers want to know whether the investigational medication can help to lessen the severity of endometriosis-related pain.

This study will also see how safe the investigational medication is and whether it may cause any side effects.

We plan to enroll a wide variety of participants because endometriosis and medications may affect women of all body types differently.

About the study medication
Endometriosis is thought to be caused partly by inflammation related to the hormone estrogen. Many current treatments for endometriosis related pain (ERP) decrease estrogen production throughout the whole body. The study drug is designed to slow the production of estrogen in endometriosis lesions only. It is hoped this may reduce endometriosis lesions and lessen ERP, while having fewer side effects than current standard of care  treatments.