Could a pill before IVF boost baby chances for endometriosis patients?

NCT ID NCT04173169

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This Phase 3 trial tested whether taking Elagolix (a hormone-blocking pill) for two months before IVF could improve live birth rates in women with endometriosis. 103 women participated, and the main goal was to see if more babies were born after this pre-treatment. The study compared Elagolix to a placebo to find out if it helps overcome infertility linked to endometriosis.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance

Elagolix (Orlissa)

What this could lead to

If successful, this could offer a new pre-treatment option to improve IVF success rates for women with endometriosis-related infertility.

What could go wrong

This is a single completed trial with 103 participants, so results may not apply to all. Elagolix can cause side effects like hot flashes and bone density loss.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Conditions

The condition(s) this trial relates to.

endometriosis infertility disorder

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • Duke Fertility

    Morrisville, North Carolina, 27560, United States

  • Johns Hopkins, Division of Reproductive Science and Women's Health Research

    Baltimore, Maryland, 21205, United States

  • Northwestern University Department of Obstetrics and Gynecology

    Chicago, Illinois, 60611, United States

  • University of Colorado Department of Obstetrics & Gynecology

    Aurora, Colorado, 80045, United States

  • Yale School of Medicine Dept.of Ob/Gyn & Reproductive Sciences

    New Haven, Connecticut, 06520, United States