NCT07256795

Brief Summary

Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) is a complex chronic illness impacting multiple body systems and characterized by activity-limiting fatigue and post exertional symptom exacerbation, affecting over 3.5 million adults in the US and as many as half of those with long COVID. The mechanisms behind the frequently profound cognitive impairments in MECFS are elusive; however, disruption of the integrity of the blood brain barrier (BBB) and immune cell migration into the brain are thought to contribute to neuroinflammation and related neuropsychiatric burden in MECFS. This project combines brain imaging, neuropsychiatric assessments, and blood-based measures of inflammation in pre-pandemic and post-pandemic individuals with MECFS to understand the role of BBB permeability and inflammation as contributors to key aspects of cognition and mood.

Trial Health

65
Monitor

Trial Health Score

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

Enrollment
200

participants targeted

Target at P75+ for all trials

Timeline
68mo left

Started May 2026

Longer than P75 for all trials

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

November 20, 2025

Completed
11 days until next milestone

First Posted

Study publicly available on registry

December 1, 2025

Completed
5 months until next milestone

Study Start

First participant enrolled

May 1, 2026

Completed
4.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2030

Expected
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2031

Last Updated

April 8, 2026

Status Verified

April 1, 2026

Enrollment Period

4.6 years

First QC Date

November 20, 2025

Last Update Submit

April 7, 2026

Conditions

Outcome Measures

Primary Outcomes (2)

  • Permeability Surface-Area Product (PS)

    Investigate BBB permeability in MECFS patients using WEPCAST MRI as measured by Permeability Surface-Area Product (PS)

    Up to 5 years

  • Inflammatory biomarkers levels

    Inflammatory biomarkers levels and their relation to BBB or and its relationship to cognitive impairments

    Up to 5 years

Eligibility Criteria

Age18 Years - 70 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

18-70 years of age * At least 8th grade education * Onset of the following symptoms prior to July 2019 (Pre-SARS-CoV-2 pandemic) and meeting 2015 IOM diagnostic criteria for MECFS:

You may qualify if:

  • years of age
  • At least 8th grade education
  • Onset of the following symptoms prior to July 2019 (Pre-SARS-CoV-2 pandemic) and meeting 2015 IOM diagnostic criteria for MECFS:
  • Substantial reduction in functioning and persistent and profound fatigue for at least 6 months. The person is unable to undertake the same level of activity before they became - . Their fatigue is not the result of significant exertion and is not substantially alleviated by rest.
  • Post-exertional malaise.
  • Unrefreshing sleep
  • At least one of the following two symptoms:
  • Cognitive impairment (difficulty with memory, finding words, understanding etc).
  • Orthostatic intolerance (symptoms like palpitations, sweating, dizziness, nausea when standing that are reduced or eliminated when lying down).
  • years of age
  • At least 8th grade education
  • Previous suspected, probable, or confirmed SARS-CoV-2 infection, as defined by the World Health Organization:
  • Suspected case of SARS-CoV-2 infection
  • Three options, A through C:
  • Meets the clinical OR epidemiological criteria.
  • +23 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Biospecimen

Retention: SAMPLES WITH DNA

Blood

MeSH Terms

Conditions

Fatigue Syndrome, Chronic

Condition Hierarchy (Ancestors)

Muscular DiseasesMusculoskeletal DiseasesEncephalomyelitisNeuroinflammatory DiseasesNervous System DiseasesNeuromuscular DiseasesChronic DiseaseDisease AttributesPathologic ProcessesPathological Conditions, Signs and Symptoms

Study Officials

  • Alba Azola, MD

    Johns Hopkins University

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Alba Azola, MD

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
CROSS SECTIONAL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 20, 2025

First Posted

December 1, 2025

Study Start

May 1, 2026

Primary Completion (Estimated)

December 1, 2030

Study Completion (Estimated)

December 1, 2031

Last Updated

April 8, 2026

Record last verified: 2026-04