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Condition Guide

New Treatments & Clinical Trials for Endometriosis

Last updated May 2026Data from ClinicalTrials.gov175 active trials
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Endometriosis affects roughly 1 in 10 women of reproductive age and takes an average of seven years to diagnose. Treatment options have long been limited to hormones and surgery, but newer GnRH antagonist pills and a wave of non-hormonal research are beginning to change that.

What's actually going on in research

Trials are testing GnRH antagonist pills for pain, non-hormonal medications targeting inflammation, surgical techniques that preserve fertility, and treatments for adenomyosis and deep infiltrating endometriosis. Researchers are also studying earlier diagnosis through blood tests and imaging, and the link between endometriosis and chronic pain.

GnRH antagonist pills

Pills like elagolix and relugolix lower estrogen and reduce endometriosis pain without injections. Trials are testing longer-term use with add-back hormones to prevent bone loss.

Non-hormonal options

Many women cannot or do not want hormonal treatment. Trials are testing drugs that target inflammation and pain pathways without altering menstrual cycles or fertility.

Earlier diagnosis

New blood tests, MRI techniques, and pelvic ultrasound approaches are being studied to diagnose endometriosis without surgery, addressing the long delay many women experience.

What to know before you search

Eligibility often depends on confirmed endometriosis (by surgery or imaging), severity of pain, fertility goals, and prior hormonal or surgical treatments.

What types of trials are currently open

  • New medication trialsTesting GnRH antagonist pills, hormones, and non-hormonal drugs for endometriosis pain.
  • Surgical trialsComparing surgical techniques and testing fertility-sparing approaches for endometriosis.
  • Pain management trialsTesting treatments for chronic pelvic pain and related conditions.
  • Diagnostic trialsTesting blood tests and imaging to diagnose endometriosis without surgery.
  • Observational studiesFollowing women with endometriosis to understand long-term outcomes and fertility.

Recently added Endometriosis trials

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