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The Role of a Mediterranean Diet in Patients With Endometriosis: a Feasibility Trial

The Role of a Mediterranean Diet in Long-term Management of Pelvic Pain in Patients With Endometriosis: a Feasibility Trial

Status
Enrolling by invitation
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05411549
Acronym
MDIE
Enrollment
24
Registered
2022-06-09
Start date
2023-08-22
Completion date
2026-06-01
Last updated
2026-06-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Endometriosis

Keywords

Diet Modification, Anti-Inflammatory Diet, Endometriosis Diet

Brief summary

This study aims to test if making changes to diet can affect the pelvic pain associated with endometriosis. One group will follow a Mediterranean diet for 12 weeks while the control group will continue with their current diet. We will be looking at the feasibility of a larger-scale trial as well as self-reported quality of life and self-reported pain using standardized questionnaires, that have previously been used and validated, and assessing how this diet affects biomarkers associated with endometriosis and inflammation. Further, we will test how this change in diet affects the gut microbe flora.

Interventions

BEHAVIORALDiet Modification to Adopt Mediterranean Diet

Participants enrolled in group 1 will be counselled by a dietician and asked to adopt a Mediterranean diet for a 12-week period from counselling. Participants will complete a series of Mediterranean Diet Adherence Score, pain questionnaires as well as quality of life questionnaires (EPH-30, SF-36, GIQLI) which have been previously validated. Participants in this group will give a baseline and final visit blood sample and stool samples to assess inflammation biomarkers as well as gut microflora.

Sponsors

McMaster University
Lead SponsorOTHER
Hamilton Health Sciences Corporation
CollaboratorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE
Masking
DOUBLE (Subject, Outcomes Assessor)

Masking description

Data is de-identified upon collection, Lab teams will not be aware of arm allocation, nor will the participants be aware of the opposite group of which they are enrolled. However, due to the nature of this study, masking of the clinical team and participant is not feasible in order for diet changes to occur safely.

Intervention model description

2 Arm Interventional Diet Modification Study Arm 1: Mediterranean Diet Counselling (Intervention) Arm 2: Continue Normal Diet (Control)

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 45 Years
Healthy volunteers
No

Inclusion criteria

* Identified female at birth * aged 18-45 * diagnosed with endometriosis (radiologically (ultrasound or magnetic resonance imaging (MRI)) or surgically confirmed diagnosis of endometriosis) * Able and willing to provide written consent to participate in the study.

Exclusion criteria

* History of or diagnosis of gynecologic or GI malignancy * Post-menopausal * Currently pregnant or lactating * Dietary restrictions due to medical conditions (e.g., Celiac disease, allergies) * People who are already following a formal anti-inflammatory diet.

Design outcomes

Primary

MeasureTime frameDescription
Feasibility of a large multi-site trial measured by assessing enrolment rate, dropout rate, time to sample size, adherence (Mediterranean Diet Adherence Score), time for intervention group to follow diet, food costs and frequency/type of Adverse Events.1 YearDropout rate, time it takes to reach our sample size (24), adherence to the intervention using the Mediterranean Diet Adherence Score, the time it takes for study intervention group to be subjectively following the Mediterranean diet regularly, cost of food throughout the study, and frequency and type of Adverse Eventss will be measured using a case report form at each study visit.

Secondary

MeasureTime frameDescription
If the Mediterranean Diet improves pain of patients with endometriosis assessed using a visual analog scale (VAS) as well as the Endometriosis Health Profile (EHP-30).1 YearThe VAS is measured on a 1 - 10 scale with 1 representing no pain and 10 representing life-debilitating pain. The EHP-30 is measured on a standardized scale from 0 to 100 where 0 represents the best health and 100 represents the worst health.
To assess whether the Mediterranean Diet can improve the concentration of peripheral inflammatory markers from baseline to study-end assessed using a 71 inflammatory marker protein array (EveTechnologies, Calgary, AB)1 YearCollection occurring at baseline and final visits
To assess if there is a change in the composition of the microbiota following a dietary change to the Mediterranean Diet using 16s ribosomal ribonucleic acid sequencing (McMaster Genomic Facility)1 YearCollection occurring at baseline and final visits

Countries

Canada

Contacts

PRINCIPAL_INVESTIGATORMathew Leonardi, M.D.

McMaster University

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 9, 2026