NCT06955221

Brief Summary

The goal of this clinical trial is to evaluate whether ultrasound-guided alcohol sclerotherapy can improve pelvic pain and quality of life in women aged 18 to 45 diagnosed with ovarian endometriomas, compared to expectant management. The main questions it aims to answer are:

  • Be randomly assigned to one of two groups: (1) Sclerotherapy group: undergo ultrasound-guided puncture and alcohol sclerotherapy; (2) Control group: expectant management
  • Complete quality of life and pain assessments at baseline and after 6 months
  • Provide blood and urine samples for biomarker analysis (e.g., cortisol, IL-6, hsCRP, catecholamines)
  • Undergo ovarian reserve assessments (AMH, antral follicle count)
  • Be followed for adverse events, recurrence, fertility outcomes, and treatment-related costs The study will follow an intention-to-treat and per-protocol analysis approach.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
288

participants targeted

Target at P75+ for not_applicable

Timeline
20mo left

Started Jan 2025

Typical duration for not_applicable

Geographic Reach
1 country

28 active sites

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress45%
Jan 2025Dec 2027

Study Start

First participant enrolled

January 1, 2025

Completed
3 months until next milestone

First Submitted

Initial submission to the registry

April 8, 2025

Completed
24 days until next milestone

First Posted

Study publicly available on registry

May 2, 2025

Completed
1.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2026

Expected
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2027

Last Updated

April 23, 2026

Status Verified

April 1, 2026

Enrollment Period

2 years

First QC Date

April 8, 2025

Last Update Submit

April 22, 2026

Conditions

Outcome Measures

Primary Outcomes (1)

  • Quality of Life of patients with endometrioma

    Endometriosis Health Profile-5 (EHP-5), the minimum and maximum values (1-5), higher scores mean a worse outcome.

    Baseline and at 6 months

Secondary Outcomes (4)

  • Pelvic pain

    Baseline and at 6 months

  • Fertility preservation

    Baseline and at 6 months

  • Antral follicle

    Baseline and at 6 months

  • Pregnacy

    through study completion, an average of 2 year

Study Arms (2)

Ultrasound-guided aspiration and alcohol sclerotherapy

EXPERIMENTAL

US-guided alcohol sclerotherapy of endometriomas with absolute etanol during 15 minutes, followed by a posterior wash.

Procedure: Ultrasound-guided aspiration and alcohol sclerotherapy

Control group

NO INTERVENTION

Expectant management with standard pain management if required

Interventions

Ultrasound-guided puncture and alcohol sclerotherapy

Ultrasound-guided aspiration and alcohol sclerotherapy

Eligibility Criteria

Age18 Years - 45 Years
Sexfemale
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Female sex
  • Age ≥18 and ≤45 years
  • Ultrasound suspicion of unilocular endometrioma or with a thin septum less than 3 mm
  • Size between 30-100 mm, persistent for at least 3-6 months since diagnosis
  • Ca125 marker \<300 UI/mL and HE4 \< 70 pM
  • Signed informed consent

You may not qualify if:

  • Age \<18 or \>45 years
  • History of ovarian or uterine cancer
  • Endometrioma size \<30 mm or \>100 mm
  • Indication for surgical treatment of the endometrioma due to suspected severe extra-ovarian endometriosis or any other cause
  • Ultrasound suspicion of dermoid cysts, anechoic cysts, or cysts with high risk of malignancy
  • Ca125 \>300 UI/mL
  • HE4 \>70 pM
  • Pregnant women
  • Patients who do not wish to participate in the study or who are mentally incapacitated

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (28)

Hospital Universitario Son Espases

Palma de Mallorca, Balearic Islands, 07210, Spain

NOT YET RECRUITING

Hospital Universitario Germans Trias i Pujol

Badalona, Barcelona, 08916, Spain

NOT YET RECRUITING

Hospital General de Granollers

Granollers, Barcelona, 08042, Spain

NOT YET RECRUITING

Consorci Sanitari de l'Anoia

Igualada, Barcelona, 08700, Spain

NOT YET RECRUITING

Consorci Sanitari Integral

L'Hospitalet de Llobregat, Barcelona, 08906, Spain

RECRUITING

Hospital Universitario de Bellvitge

L'Hospitalet de Llobregat, Barcelona, 08907, Spain

RECRUITING

Consorci Corporació Sanitària Parc Taulí

Sabadell, Barcelona, 08208, Spain

NOT YET RECRUITING

Parc Sanitari Sant Joan de Deu

Sant Boi de Llobregat, Barcelona, 08830, Spain

NOT YET RECRUITING

Hospital Universitari General de Catalunya

Sant Cugat del Vallès, Barcelona, 08195, Spain

NOT YET RECRUITING

Hospital de Viladecans

Viladecans, Barcelona, 08840, Spain

RECRUITING

Hospital Universitario Doctor José Molina Orosa

Arrecife, Canary Islands, 35500, Spain

NOT YET RECRUITING

Hospital Universitario San Pedro

Logroño, La Rioja, 26006, Spain

NOT YET RECRUITING

Hospital General Universitario Los Arcos del Mar Menor

San Javier, Murcia, 30739, Spain

NOT YET RECRUITING

Hospital Universitario de Cabueñes

Gijón, Principality of Asturias, 33394, Spain

NOT YET RECRUITING

Hospital Universitario Central de Asturias

Oviedo, Principality of Asturias, 33011, Spain

NOT YET RECRUITING

Hospital Universitari Sant Joan de Reus

Reus, Tarragona, 43204, Spain

NOT YET RECRUITING

Hospital del Mar

Barcelona, 08003, Spain

RECRUITING

Hospital Universitario de Burgos

Burgos, 09006, Spain

NOT YET RECRUITING

Clínica Sanabria

Granada, 18012, Spain

NOT YET RECRUITING

Hospital Universitario de Jaén

Jaén, 23007, Spain

NOT YET RECRUITING

Hospital Universitario Ramón y Cajal

Madrid, 28034, Spain

RECRUITING

Hospital Clínico San Carlos

Madrid, 28040, Spain

RECRUITING

Hospital Universitario 12 de Octubre

Madrid, 28041, Spain

NOT YET RECRUITING

Hospital Universitario Virgen del Rocío

Seville, 41013, Spain

NOT YET RECRUITING

Hospital Universitario Joan XXIII

Tarragona, 43005, Spain

NOT YET RECRUITING

Hospital Recoletas Salud Campo Grande

Valladolid, 47007, Spain

RECRUITING

Hospital Clínico Universitario Lozano Blesa

Zaragoza, 50009, Spain

NOT YET RECRUITING

Hospital Universitario de Álava - Txagorritxu

Vitoria-Gasteiz, Álava, 01009, Spain

NOT YET RECRUITING

MeSH Terms

Conditions

EndometriosisPelvic Pain

Interventions

Ethanol

Condition Hierarchy (Ancestors)

Genital Diseases, FemaleFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesGenital DiseasesPainNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

AlcoholsOrganic Chemicals

Study Officials

  • Amparo Garcia-Tejedor, MDPhD

    Hospital Universitario de Bellvitge

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Amparo Garcia-Tejedor, MDPhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Masking Details
Masking Description
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Model Description
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Clinical Professor, Principal Investigator

Study Record Dates

First Submitted

April 8, 2025

First Posted

May 2, 2025

Study Start

January 1, 2025

Primary Completion (Estimated)

December 31, 2026

Study Completion (Estimated)

December 31, 2027

Last Updated

April 23, 2026

Record last verified: 2026-04

Data Sharing

IPD Sharing
Will not share

Locations