New injection could save ovaries in endometriosis cyst surgery

NCT ID NCT06775769

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Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

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Status unknown
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First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tests if injecting alcohol into endometriosis-related ovarian cysts (sclerotherapy) can better preserve egg supply and reduce cyst return compared to standard surgical removal. Sixty women aged 18-40 with cysts at least 2 cm will be randomly assigned to one of the two treatments. Researchers will track ovarian reserve, symptom changes, and cyst recurrence over two years.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 60 people

The number the study aims to enrol. It can still change while the study runs.

Started

Feb 2025

Expected to finish

Dec 2027

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 45 years

Sex

Female participants only

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Female (XX genotype, assigned female at birth) * Age 18-40 * Finding of suspected uni- or bi-lateral ovarian endometrioma(ta) of ≥ 2cm on TVUSS and/or pelvic MRI scan (TVUSS, a uni- or multi-locular ovarian cystic lesion with low level echoes and diffuse homogeneous ground glass appearance; MRI any of, ovarian lesion hyperintense T1 without loss of signal on T1 fat-suppressed images, hypointense T2 exhibiting shading sign and/or T2 dark spot sign, variable restricted diffusion on DWI) * Appropriate to be listed for laparoscopic excision of endometrioma (Endometrioma ≥2cm, pain symptoms attributable to endometriosis where medical management is unsuccessful or unacceptable to the patient, to facilitate ART) Exclusion Criteria: * Postmenopausal status * Suspicion of malignancy * Unable to undergo TVUSS * Declines to take part in the study * Unable to understand verbal or written information in English * Lack of capacity to consent at the point of recruitment * Known safeguarding issues

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

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

How to take part

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  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

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  3. A doctor treating you

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Contacts and locations

Locations

  • Chelsea and Westminster NHS Foundation Trust

    RECRUITING

    London, SW10 9NH, United Kingdom

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