Impact of a Diagnosis or Lack of a Diagnosis of Endometriosis Via a Saliva Test on Pain Catastrophizing, Quality of Life, Symptoms of Anxiety and Depression, and Treatment Adherence (ENDETECT)

October 28, 2026 updated by: University Hospital, Lille

This non-interventional study aims to assess the impact of an endometriosis diagnosis obtained through a salivary test (Ziwig Endotest®) on pain-related cognitions, quality of life, mood, and treatment adherence, comparingthese outcomes with those of individuals who underwent the same salivary test but received a negative result and were therefore not diagnosed with endometriosis.

Participation in this study will contribute to advancing research in the field of endometriosis diagnosis and multidisciplinary management by expanding current knowledge of diagnostic protocols and their impact on pain, quality of life, treatment adherence, and potential psychiatric comorbidities. The investigators hope to enhance understanding of endometriosis and pelvic pain symptomatology in order to develop new therapeutic strategies, including psychological interventions or integrated psychological care, that better address the needs and specific characteristics of patients whether or not they receive a diagnosis of endometriosis.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Not yet recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
50

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • France
      • Lille, France
        • CHU de Lille
        • Contact:
        • Contact:
          • Chrydtele RUBOD DIT GUILLET, Pr

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 43 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Female

Sampling Method

Non-Probability Sample

Study Population

Patients referred for suspected endometriosis, with negative imaging findings and for whom an endotest has been indicated.

Description

Inclusion Criteria:

  • Patients eligible for an endotest as part of the innovation package at Jeanne de Flandre Hospital
  • Patients between 18 to 43 years old
  • Understand and can communicate in French
  • Having received medical images that do not allow the diagnosis of endometriosis
  • Presenting with symptoms suggestive of endometriosis
  • Giving oral non-opposition to participe in the study
  • Beneficiary of health insurance coverage
  • Having normal visual and auditory acuity or corrected to normal levels

Exclusion Criteria:

  • Minors, adults under guardianship, under judicial protection, and persons deprived of liberty
  • Refusal to participate after receiving clear and fair information about the study
  • Sensory, visual or auditory inability to participate in the study
  • Personal history of neurological disorders or current neurological disorder
  • Consumtion of toxic substances other than tobacco and alcohol.
  • Personal history of psychiatric disorders or current psychiatric disorders other than anxiety, depressive, or trauma- and stress-related disorders
  • Use of psychotropic medications
  • Pregnant or breastfeeding women

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: CASE_ONLY
  • Time Perspectives: PROSPECTIVE

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Changes in pain catastrophizing 1 month after being informed of the results of the saliva test among patients diagnosed with endometriosis and among patients not diagnosed with endometriosis.
Time Frame: 1 month + 3 weeks

Change in the Pain Catastrophizing Scale score between baseline and 1 month after the announcement of the salivary test results.

Use : Questionnaire Pain Catastrophizing scale-13 items divided into three dimensions: "rumination," "magnification," and "helplessness"-scored on a scale of 0 to 4-maximum total score of 52 points.
1 month + 3 weeks

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Changes 1 month after the consultation during which the results of the salivary test for pain catastrophizing were announced, based on the diagnosis of endometriosis.
Time Frame: 6 months + 3 weeks

Change from baseline to 1 month after the announcement of the salivary test results in the Pain Catastrophizing Scale score.

Use : Questionnaire Pain Catastrophizing scale-13 items divided into three dimensions: "rumination," "magnification," and "helplessness"-scored on a scale of 0 to 4-maximum total score of 52 points.
6 months + 3 weeks
Changes at 1 month and 6 months after the consultation during which the saliva test results were announced, based on whether endometriosis was diagnosed: • Quality of life • Anxiety and depressive symptoms • Treatment adherence
Time Frame: 6 months + 3 weeks

Change from baseline to 1 month after the results were announced, and from baseline to 6 months after the results were announced. Use:

  • Endometriosis Health Profile-30 questionnaire (Quality-of-life score specific to women with endometriosis) - divided into several themes: general (focusing particularly on pain and psychological impacts), work, children, sexual relations, healthcare providers, treatment, and difficulties conceiving - 53 items rated on a scale of 1 to 5,
  • World Health Organization Quality of Life (Quality of life score in the domains of "physical health," "psychological well-being," "social relationships," and "environment") - 26 items rated on a 5-point scale with a maximum total score of 130,
  • Hospital Anxiety and Depression Scale questionnaire (Anxiety and depression score) - a two-part score consisting of 7 items each, rated on a 21-point scale,
  • Medication Adherence Report Scale (Therapeutic compliance) - 10 items - score out of 10.
6 months + 3 weeks
Changes at 6 months following the consultation during which the results of the salivary test for pain catastrophizing were reported, based on the diagnosis of endometriosis.
Time Frame: 6 months + 3 weeks

To compare the change in pain catastrophizing at 6 months following the consultation disclosing the salivary test results, between patients diagnosed with endometriosis and those not diagnosed with endometriosis.

Use : Questionnaire Pain Catastrophizing scale-13 items divided into three dimensions: "rumination," "magnification," and "helplessness"-scored on a scale of 0 to 4-maximum total score of 52 points.
6 months + 3 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
University Hospital, Lille

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
November 1, 2026

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
June 1, 2028

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
June 1, 2028

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
October 14, 2026

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 28, 2026

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
November 4, 2026

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
November 4, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 28, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
October 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 2025_0266

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Cookie Settings

We use cookies to ensure that we give you the best experience on our website. For more details carefully read our Privacy and Cookies Policy. ...>>>You can change your preferences or withdraw your consent at any time by deleting the cookies from your website or computer as described in the policy. Please accept it and choose your preferences by ticking the corresponding boxes in the "Manage Settings" section below. Please carefully read our Terms of Service before you proceed with using any part of this website.
«Manage Settings