NCT07854925

Brief Summary

Endometriosis is a common chronic condition in which tissue resembling the lining of the uterus grows outside the uterus. It affects up to 10% of all women, causes severe pain, and places a significant burden on those affected. Current treatments often provide insufficient relief, and the impact of psychosocial factors on the well-being of those affected has received little research attention to date. With this study, the investigators aim to improve the well-being of women with endometriosis. To this end, the investigators have developed the EMPOWER intervention, a couple-based program designed to enhance well-being. The intervention is intended to alleviate pain, improve well-being, and help both partners cope better with the condition. The findings will be published in a free self-help manual intended to benefit those affected worldwide.

Trial Health

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Trial Health Score

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

Enrollment
200

participants targeted

Target at P75+ for not_applicable

Timeline
37mo left

Started Oct 2026

Typical duration for not_applicable

Status
not yet recruiting

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

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

September 21, 2026

Completed
10 days until next milestone

Study Start

First participant enrolled

October 1, 2026

Completed
1 day until next milestone

First Posted

Study publicly available on registry

October 2, 2026

Completed
3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 1, 2029

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2029

Last Updated

October 2, 2026

Status Verified

September 1, 2026

Enrollment Period

3 years

First QC Date

September 21, 2026

Last Update Submit

September 28, 2026

Conditions

Keywords

EndometriosisWomen's healthMindfulnessPartner SupportWell-being

Outcome Measures

Primary Outcomes (4)

  • WHO-5 Well-Being Index (World Health Organization, 1998)

    Six-point Likert scale ("0 = Never" - "5 = All the time"); higher scores indicate higher levels of well-being.

    Baseline; immediately before and after each intervention session; one month post-intervention; seven months post-intervention.

  • Diurnal Salivary Cortisol Slope (nmol/L; Psychobiological Stress Regulation)

    Salivary cortisol concentration (nmol/L) from four self-collected saliva samples per day (60 minutes after awakening, 2.5 hours later, 8 hours later, and at bedtime); the diurnal slope is calculated as the rate of decline from the morning peak to the evening nadir; steeper negative slopes indicate healthier hypothalamic-pituitary-adrenal (HPA) axis regulation.

    On two consecutive days pre-intervention; on the six intervention days, four samples per day.

  • Current pain Intensity (Numeric Rating Scale)

    11-point Likert scale ("0 = No Pain" - "10 = Strongest imaginable pain" ); higher scores indicate higher levels of pain.

    Baseline; immediately before and after each intervention session; one month post-intervention; seven months post-intervention.

  • Relationship Assessment Scale (RAS; Hendrick, 1988)

    Five-point Likert scale ("0 = Very dissatisfied" - "4 = Very satisfied"; phrasing varies by item); higher scores indicate higher relationship satisfaction.

    Baseline; immediately before and after each intervention session; one month post-intervention; seven months post-intervention.

Secondary Outcomes (10)

  • Satisfaction with Life Scale (SWLS; Diener et al., 1985)

    Baseline; one month post-intervention; seven months post-intervention.

  • Five Facet Mindfulness Questionnaire (FFMQ; Baer et al., 2008)

    Baseline; one month post-intervention; seven months post-intervention.

  • Practical and Emotional Support Provision and Receipt (Shrout et al., 2006)

    Baseline; one month post-intervention; seven months post-intervention.

  • Endometriosis Health Profile-30 (EHP-30; Jones et al., 2001)

    Baseline; one month post-intervention; seven months post-intervention.

  • Endometriosis Pain and Bleeding Diary (Deal et al., 2010)

    Baseline; one month post-intervention; seven months post-intervention.

  • +5 more secondary outcomes

Other Outcomes (15)

  • Dyadic Coping Inventory (DCI; Bodenmann, 1997)

    Baseline; one month post-intervention; seven months post-intervention.

  • Self-Compassion Scale Short Form (SCS-SF; Raes et al., 2011)

    Baseline; one month post-intervention; seven months post-intervention.

  • State Mindfulness Scale (SMF; Van Der Gucht et al., 2019)

    Immediately before and after each intervention session.

  • +12 more other outcomes

Study Arms (2)

Control

ACTIVE COMPARATOR
Behavioral: Control

EMPOWER-Intervention

EXPERIMENTAL
Behavioral: EMPOWER

Interventions

EMPOWERBEHAVIORAL

The EMPOWER intervention consists of six 30-60 minute couple sessions (3x per week over two weeks), conducted at home via guided audio. Each session combines a structured mindfulness exercise (progressing difficulty) with a mutual partner support conversation (structured speaker-listener format, progressing difficulty).

EMPOWER-Intervention
ControlBEHAVIORAL

The active control condition consists of six sessions of similar length, comprising psychoeducation about endometriosis and chronic pain, unguided relaxation to music, and less structured couple conversations without the partner support component.

Control

Eligibility Criteria

Age18 Years+
Sexfemale(Gender-based eligibility)
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • clinically confirmed endometriosis diagnosis
  • subjective impact on well-being
  • currently in a relationship
  • both partners willing to participate
  • fluency in German
  • residency in German-speaking Switzerland
  • ability to provide informed consent

You may not qualify if:

  • self-diagnosed endometriosis
  • asymptomatic endometriosis
  • single individuals
  • only one partner willing to participate
  • no access to a mobile device
  • pregnancy

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Endometriosis

Condition Hierarchy (Ancestors)

Genital Diseases, FemaleFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesGenital Diseases

Study Officials

  • Maximiliane Uhlich, PhD

    University of Basel

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Maximiliane Uhlich, PhD

CONTACT

Simone Wyss, MSc

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

September 21, 2026

First Posted

October 2, 2026

Study Start

October 1, 2026

Primary Completion (Estimated)

October 1, 2029

Study Completion (Estimated)

October 1, 2029

Last Updated

October 2, 2026

Record last verified: 2026-09

Data Sharing

IPD Sharing
Will share

After the study is completed, anonymized data will be made publicly available via appropriate science platforms (e.g., OSF). Demographic information will only be published in aggregated form and will be removed before posting data on open science repositories. Participants are informed about this in the consent form.