CClinicalTrials.gg
CompletedNCT06825741Updated Feb 17, 2025

Brain Structural Abnormalities in Patients with Post-COVID-19 Headache

An observational study in COVID-19, Headache and MRI, sponsored by University of Pecs. Completed at 1 site in Hungary. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-02-17.

Sponsored by University of Pecs · Observational

Study type
Observational
Model
Case-control
Time perspective
Retrospective
Enrollment
60
Ages
18 Years and older
Sex
All
01

Study summary

Introduction: The clinical manifestations of the COVID-19 pandemic are heterogeneous and may include various symptoms (gastrointestinal, musculoskeletal, neurological). Approximately 25% of patients report headache as a neurological symptom, making it the fifth most common symptom. These headaches may arise from structural brain changes associated with the infection.

Purpose: This study aims to identify the structural abnormalities observed in brain MRI that correlate with chronic headaches in patients who had COVID-19 infection.

Methods: The study included 30 patients with post-COVID-19 headaches and 30 control patients with no history of COVID-19. Demographic characteristics were analyzed using t-tests and chi-square tests. MRI findings were categorized into six types: cortical atrophy, white matter lesions, vascular lesions, lacunar lesions, vascular encephalopathy, and sinusitis. Differences in MRI findings between the two groups were evaluated using chi-square tests. Secondary outcomes included the analysis of symptoms accompanying headaches, diagnoses following MRI, and treatments applied.

02

Conditions studied

  • COVID-19
  • Headache
  • MRI

Keywords

  • COVID-19
  • headache
  • MRI
  • brain
  • white matter lesion
03

In context

COVID-19

7,640 studies on the registry are indexed under COVID-19; 488 are open to participants now.

This study's enrollment of 60 is below the median of 261 across 3,136 observational studies indexed under COVID-19.

Browse COVID-19 studies →

Lead sponsor

University of Pecs is the lead sponsor of 100 studies on the registry; 24 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

The study population consisted of adult patients (≥18 years) with persistent headaches following COVID-19 infection who were referred for brain MRI to investigate potential structural abnormalities. A control group of individuals without a history of COVID-19 infection or chronic headaches was included for comparison. Exclusion criteria included prior neurological diseases, recent head trauma, and MRI contraindications.

Inclusion criteria

  • Age ≥18 years
  • History of COVID-19 infection
  • Persistent headache following COVID-19 infection
  • Brain MRI requested by the attending physician

Exclusion criteria

Exclusion Criteria:

  • Prior neurological disease or disorder
  • MRI contraindications (e.g., pacemaker, metal implants, claustrophobia)
05

Study design

Observational model
Case-control
Time perspective
Retrospective
Enrollment
60 participants (actual)
Patient registry
No

Groups and cohorts

  • Post-COVID-19 Headache Group

    Participants in this group had a history of COVID-19 infection and developed persistent headaches afterward. They underwent brain MRI to assess potential structural abnormalities. Exclusion criteria included pre-existing neurological disorders or other conditions that could explain the headaches.

    Other: Observational Study - No intervention

  • Control Group

    Participants in this group had no history of COVID-19 infection and no reported chronic headaches or neurological conditions. They underwent brain MRI for unrelated medical reasons and served as a comparison group to evaluate the prevalence of structural brain abnormalities in post-COVID headache patients.

    Other: Observational Study - No intervention

Interventions

  • OtherObservational Study - No intervention

    This is an observational study evaluating brain structural abnormalities in post-COVID headache patients. No experimental intervention is applied.

06

What researchers measure

Primary outcomes

  1. Number of Participants with Specific Structural Brain Abnormalities Observed on MRI

    Brain MRI scans were analyzed to determine the number of participants with specific structural abnormalities, including white matter lesions, cortical atrophy, vascular encephalopathy, lacunar infarcts, and sinusitis. Each abnormality was evaluated separately, and the number of participants affected by each type was recorded.

    Time frame: From September 2020 to December 2022

Secondary outcomes

  1. Number of Participants Reporting Additional Symptoms Associated with Post-COVID-19 Headache

    The number of participants experiencing symptoms such as dizziness, cognitive dysfunction, and visual disturbances was recorded. Each symptom was assessed separately and reported as the number of affected participants.

    Time frame: From September 2020 to December 2022

  2. Number of Participants Diagnosed with Specific Conditions After MRI

    Following MRI evaluation, the number of participants diagnosed with specific conditions (e.g., migraines, post-COVID headache, vestibular syndrome) was recorded. Each diagnosis was evaluated and reported separately.

    Time frame: From September 2020 to December 2022

  3. Number of Participants Receiving Specific Treatment Approaches for Post-COVID-19 Headache

    The number of participants receiving pharmacological treatments (e.g., cognitive enhancers, antidepressants) and lifestyle modifications was recorded. Each treatment approach was assessed separately and reported as the number of affected participants.

    Time frame: From September 2020 to December 2022

07

Study locations

1 site
  • Szent Margit Hospital
    Budapest, 1032, Hungary
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References and documents

Individual participant data

Plan to share: Yes

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 17, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT06825741
Lead sponsor
University of Pecs
Responsible party
Sponsor
First posted
Feb 13, 2025
Start date
Sep 1, 2020
Primary completion
Dec 31, 2022
Completion
Dec 31, 2022
Last update
Feb 17, 2025

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Feb 2025. You cannot join it, but the record below documents what was studied.

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