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NCT06101303Recruiting

Endometriosis Pain

The Mechanisms Underlying Endometriosis Pain

Source: ClinicalTrials.gov · Last updated 13 Jul 2026

Brief summary (registry, in English)

Aim 1. To determine the factors contributing to pain in patients with chronic pelvic pain with and without endometriosis Aim 2. To determine the changes following endometriosis lesion removal surgery in pain and sex hormone levels. Aim 3. To identify factors predicting clinical pain reduction after lesion removal surgery. Additional exploratory aims might compare subgroups of patients such as patients with vs. without endometriosis, with vs. without additional chronic pain syndromes, and with vs. without hormonal treatment. In addition, the role of lesion-specific immune signatures and psychological factors on pain will be explored. Patients with pelvic pain potentially due to endometriosis will complete questionnaires including social, health, behavioral, and psychological questionnaires. Patients will also complete a 2.5 hours study visit of psychophysical assessments of thermal and pressure stimuli. In addition, blood, urine, and saliva samples will be collected for hormonal, immune, and genetic analyses. Additional samples might be collected and stored for future analyses. For some participants, these procedures will be completed several times, including before the surgery as well as 3 months, 6 months and 1 year after surgery. After the surgery, surveys assessing pain and other symptoms will be sent every week on the first month and then monthly for 1 year. In addition, during the surgery, biopsies will be collected and analyzed to determine hormonal, immune and genetic factors. For adolescents, a parent/legal guardian will be asked to assist in completing some of the health-related surveys (i.e., physical developmental survey, health survey, migraine history survey).

Status (registry)
Recruiting
Study type
Observational
Enrollment
120 (estimated)
First submitted
2 Oct 2023
Start date
29 Sept 2023
Primary completion date
1 Sept 2028
Lead sponsor
Washington University School of Medicine
NCT number
NCT06101303

What you commit to

  • Study type: Observational
  • Planned participants: 120
  • From 29 Sept 2023 to the primary completion date, 1 Sept 2028
  • 1 site in 1 country
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Age

  • For patients aged 12-17 not having a parent/legal guardian willing to sign the consent and answer surveys about their child's health

Other

  • Pregnancy
  • Planned hysterectomy or oophorectomy
  • Co-occurring vaginismus and/or vulvodynia

Who the study is looking for

  • Patients with pelvic pain with and without endometriosis scheduled for an operative laparoscopic surgery for endometriosis diagnosis and/or treatment
  • Age 12-45
  • Females

Age in the registry: 12 years to 45 years · Sex: Female · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (1)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
Washington University School of Medicine
Coordinator of this site? Confirm its status
St LouisUnited StatesRecruiting

This page is information, not medical advice. Discuss any trial with your doctor.