Clinical trial Recruiting at 1 site Interventional Ages 40 to 80

Examining the effects of a Mediterranean diet on Parkinson's Disease

Official title: Canadian Parkinson's Microbiome Initiative: A Pilot Phase 2 Feasibility Randomized Controlled Trial of the MIND Diet in Parkinson's Disease

Run by University of British Columbia · NCT06207136 · Data updated 2026-11-12

This study is trying out a Mediterranean diet for people with Parkinson's Disease to see if it helps improve their symptoms and overall health compared to a regular diet.

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Quick facts

Study typeInterventional
Ages40 Years to 80 Years
SexAll
Enrollment40 (estimated)
SponsorUniversity of British Columbia
Academic / other
Locations1 site (Vancouver, British Columbia)
StatusRecruiting
StartedDecember 3, 2024
Main results expectedDecember 31, 2027
Study endsDecember 31, 2027
Registry record updatedMarch 23, 2026
Trial IDNCT06207136 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are individuals aged 40-80 with a clinical diagnosis of Parkinson's Disease who are cognitively stable and can commit to the study's requirements.

Probably not a fit

Patients with atypical parkinsonism, significant medical conditions, or those unable to participate fully in the nutrition intervention may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This pilot study aims to assess the feasibility and effects of an 18-month Mediterranean-style diet intervention compared to a standard diet in individuals living with Parkinson's Disease who do not have dementia. Participants will be randomly assigned to either diet group and will receive virtual nutrition coaching and cooking classes, along with regular in-person assessments at the University of British Columbia. The study will monitor changes in gut microbiome and Parkinson's symptoms, utilizing wearable devices to track physical activity and lifestyle factors throughout the intervention period.

Why it matters

Potential benefit: If successful, this study could provide insights into dietary interventions that may improve symptoms and quality of life for patients with Parkinson's Disease.

How similar studies have gone: While there is existing research linking Mediterranean diets to reduced risk and mortality in Parkinson's Disease, this specific intervention is novel and has not been extensively tested.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

Eligible if the person living with Parkinson's has/is:

1. a clinical diagnosis of PD,
2. cognitively stable (no clinical dementia),
3. between 40-80 years old,
4. able to travel to UBC for 6 onsite visits over 18 months,
5. sufficient English proficiency (coaching and cooking classes are in English only),
6. on a stable dopaminergic medication for at least one month before baseline,
7. computer and internet access at home, and can be available via video link for at least 80% of the study sessions.

Exclusion Criteria:

Not eligible, if person has/is:

1. a diagnosis of atypical parkinsonism,
2. medical or psychiatric conditions that would prevent full participation in the nutrition intervention (such as food allergies), significant dysphagia, diabetes on insulin, anti-coagulation on warfarin, and inflammatory bowel disease,
3. clinical dementia,
4. unable to complete questionnaires or understand study instructions,
5. using of immunomodulatory agents,
6. used Probiotics in the last 4 weeks prior to study start,
7. used Antibiotics in the last 3 months prior to study start,
8. contraindications for MRI.

Where it's running

  • UBC Pacific Parkinson's Research Centre
    Vancouver, British Columbia, Canada
    Recruiting

Study contacts

  • Principal investigator: Silke Appel-Cresswell, MD, FRCPC — University of British Columbia
  • Study coordinator: Annie Kuan
  • Email: annie.kuan@ubc.ca
  • Phone: 604-827-0576

Similar studies

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.