MitoQ for Fatigue in Multiple Sclerosis (MS) (MitoQ)

April 7, 2026 updated by: VA Office of Research and Development

MitoQ for Fatigue in Multiple Sclerosis: A Placebo Controlled Trial

The purpose of this study is to determine whether MS patients who receive Oral mitoquinone (MitoQ) have less fatigue than those receiving a placebo. A comparison between patient's fatigue scored at baseline and fatigue scored 12 weeks after drug initiation will assess if MitoQ has a significant change in fatigue.

Study Overview

Detailed Description

Recruitment of subjects on hold due to COVID-19 pandemic

MitoQ is a potent antioxidant dietary supplement with potentially significant immunomodulatory and anti-inflammatory properties. While the cause of MS related fatigue is uncertain, the investigators believe that mitochondria dysfunction and resultant neuronal energy depletion may be an important contributor to fatigue in MS.

This clinical trial will evaluate the potential beneficial effects of MitoQ on MS fatigue. It will also explore the effects of MitoQ on cognitive function, quality of life and mood. If enrolled in the study, patients will take two capsules of the study drug or placebo at the same time every day for twelve weeks. There will be 4 study visits where the participant will undergo medical and nervous system examinations, questionnaires, and blood draws. Because it is a placebo-controlled trial, participants will have a 33% chance of receiving either placebo (inactive), 20mg of MitoQ, or 40mg of MitoQ. This will be a blinded randomized study, meaning neither the participant nor the investigator will know who received the placebo or study drug.

Study Type

Interventional

Enrollment (Actual)

45

Phase

  • Phase 2
  • Phase 1

Contacts and Locations

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

Study Locations

    • Oregon
      • Portland, Oregon, United States, 97207-2964
        • VA Portland Health Care System, Portland, OR

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

Ages Eligible for Study

18 years to 70 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • MS (any clinical subtype) as diagnosed by the 2017 McDonald criteria
  • EDSS score of 2 to 8
  • complaint of fatigue that has been persistent for at least two months
  • Modified Fatigue Impact Scale (MFIS) score of 38 or greater

Exclusion Criteria:

  • treatment with systemic glucocorticoids in the prior six weeks
  • Beck Depression Inventory (BDI) >31 or BDI-FS>10 (severe depression)
  • significant MS exacerbation in prior 30 days
  • previous use of MitoQ or Coenzyme Q10 (CoQ10) within thirty days of screening appointment
  • other significant health problem that might increase risk of patient experiencing Adverse Events (AEs), e.g.:

    • active coronary heart disease
    • liver disease
    • pulmonary disease
    • diabetes mellitus
  • pregnancy or intending to become pregnant or breastfeeding
  • unable to complete the self-report forms
  • unable to give informed consent
  • prisoners
  • any condition which would make the patient in the opinion of the investigator unsuitable for the study

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

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Placebo Comparator: Placebo
Subject will receive Placebo
Active Comparator: 20mg of MitoQ
20mg of oral mitoquinol
a third of subject will receive 20mg of oral MitoQ
Other Names:
  • Oral Mitoquinol
Active Comparator: 40mg of MitoQ
40mg of Oral Mitoquinol
a third of subjects will receive 40mg of MitoQ
Other Names:
  • Oral Mitoquinol

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Modified Fatigue Inventory Scale (MFIS)
Time Frame: Week 1, Week 7, Week 13
MFIS is a self - reported fatigue survey. Scale 0 - 84. Higher scores indicate a greater impact of fatigue.
Week 1, Week 7, Week 13

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Expanded Disability Status Scale (EDSS)
Time Frame: 12 weeks
EDSS measures neurological function. Scale 0-10
12 weeks
Beck's Depression Inventory (BDI)
Time Frame: 12 weeks
BDI is a self-reported questionnaire measuring depression. Scale 0-21
12 weeks
Symbol Digit Modalities Test (SDMT)
Time Frame: Week 1, Week 7, Week 13
SDMT measures cognitive function. Scale 0-110. Higher scores reflect a better outcome.
Week 1, Week 7, Week 13

Collaborators and Investigators

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

Investigators

  • Principal Investigator: Vijayshree Yadav, MBBS, VA Portland Health Care System, Portland, OR

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 (Actual)

April 1, 2020

Primary Completion (Actual)

October 15, 2024

Study Completion (Actual)

March 31, 2026

Study Registration Dates

First Submitted

February 11, 2020

First Submitted That Met QC Criteria

February 11, 2020

First Posted (Actual)

February 13, 2020

Study Record Updates

Last Update Posted (Actual)

April 24, 2026

Last Update Submitted That Met QC Criteria

April 7, 2026

Last Verified

April 1, 2026

More Information

Terms related to this study

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

Yes

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

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.

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