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Dietary Changes

Dietary Changes for Fibromyalgia

N/A
Waitlist Available
Led By Yoram Shir, MD
Research Sponsored by McGill University Health Centre/Research Institute of the McGill University Health Centre
Eligibility Criteria Checklist
Specific guidelines that determine who can or cannot participate in a clinical trial
Must have
Chronic widespread pain index >= 9 and pain intensity >= 6
Women over the age of 18, diagnosed with FM
Must not have
Any major illness (e.g. malignancy, active inflammatory disease, metabolic disease, etc.)
Inflammatory bowel disease
Timeline
Screening 3 weeks
Treatment Varies
Follow Up four weeks after the initiation of the new diet compared to baseline.
Awards & highlights
No Placebo-Only Group

Summary

This trial will test whether a gluten-free or low-FODMAP diet can help relieve symptoms of fibromyalgia and if these changes are linked to changes in gut bacteria.

Who is the study for?
This trial is for women over 18 with fibromyalgia, experiencing widespread pain. Participants must be able to read and write in French or English. It's not suitable for those with major illnesses, severe depression, pregnancy, inflammatory bowel disease, or those already on low-FODMAP or gluten-free diets.
What is being tested?
The study tests the effectiveness of a gluten-free diet versus a low-FODMAP diet compared to no dietary change (control group) in reducing fibromyalgia symptoms and altering gut bacteria.
What are the potential side effects?
Dietary changes may lead to temporary digestive discomfort such as bloating or constipation. Long-term effects are unknown but could include nutritional deficiencies if not properly managed.

Eligibility Criteria

Inclusion Criteria

You may be eligible if you check “Yes” for the criteria below
Select...
I experience widespread pain almost all the time.
Select...
I am a woman over 18 diagnosed with fibromyalgia.

Exclusion Criteria

You may be eligible for the trial if you check “No” for criteria below:
Select...
I do not have any major illnesses like cancer or metabolic diseases.
Select...
I have inflammatory bowel disease.
Select...
I have severe depression.

Timeline

Screening ~ 3 weeks
Treatment ~ Varies
Follow Up ~four weeks after the initiation of the new diet compared to baseline.
This trial's timeline: 3 weeks for screening, Varies for treatment, and four weeks after the initiation of the new diet compared to baseline. for reporting.

Treatment Details

Study Objectives

Study objectives can provide a clearer picture of what you can expect from a treatment.
Primary study objectives
Changes in blood microbiota-related metabolites, affecting host physiology, in response to dietary intervention
Changes in gut microbiome composition in response to dietary intervention
Changes in stool microbiota-related metabolites affecting host physiology, in response to dietary intervention.
Secondary study objectives
Hospital Anxiety and Depression Scale (HADS) score
ROME IV criteria for irritable bowel syndrome
The Fibromyalgia Impact Questionnaire (FIQ) score
+2 more

Awards & Highlights

No Placebo-Only Group
All patients enrolled in this study will receive some form of active treatment.

Trial Design

3Treatment groups
Experimental Treatment
Group I: Low-FODMAP DietExperimental Treatment1 Intervention
Participants will be instructed to maintain their usual diet, while eliminating FODMAPs (A subgroup of carbohydrates are considered fermentable, given the lack of suitable hydrolase enzymes in the colon, required for their digestion and absorption, thus making them available for fermentation).
Group II: Gluten-Free DietExperimental Treatment1 Intervention
Participants will be instructed to maintain their usual diet, while eliminating all dietary gluten.
Group III: ControlExperimental Treatment1 Intervention
Patients of this group will be asked to adhere to their regular, daily diet.
Treatment
First Studied
Drug Approval Stage
How many patients have taken this drug
Low-FODMAP diet
2016
N/A
~40
Control group
2020
N/A
~1870

Find a Location

Who is running the clinical trial?

McGill University Health Centre/Research Institute of the McGill University Health CentreLead Sponsor
470 Previous Clinical Trials
166,911 Total Patients Enrolled
1 Trials studying Fibromyalgia
32 Patients Enrolled for Fibromyalgia
Louise and Alan Edwards FoundationUNKNOWN
2 Previous Clinical Trials
370 Total Patients Enrolled
Yoram Shir, MDPrincipal InvestigatorMcGill University Health Centre/Research Institute of the McGill University Health Centre
5 Previous Clinical Trials
329 Total Patients Enrolled
1 Trials studying Fibromyalgia
19 Patients Enrolled for Fibromyalgia

Media Library

Gluten-free Diet (Dietary Changes) Clinical Trial Eligibility Overview. Trial Name: NCT05329571 — N/A
Gluten-free Diet (Dietary Changes) 2023 Treatment Timeline for Medical Study. Trial Name: NCT05329571 — N/A
Fibromyalgia Research Study Groups: Low-FODMAP Diet, Gluten-Free Diet, Control
Fibromyalgia Clinical Trial 2023: Gluten-free Diet Highlights & Side Effects. Trial Name: NCT05329571 — N/A
Fibromyalgia Patient Testimony for trial: Trial Name: NCT05329571 — N/A
~11 spots leftby Nov 2025