Do EEG and Neurocognitive Assessments Correlate With COVID Brainfog Symptoms?

May 14, 2025 updated by: Edward Michelson, MD, Texas Tech University Health Sciences Center, El Paso

COVID19 Effects on the Brain and Cerebral Function; Do Quantitative Measures of Brain Electrical Activity Along With Neurocognitive Assessments Correlate With Symptoms and Clinical Assessment?

Since the neurologic symptoms of some COVID patients ('brain fog') resemble those of patients with concussion, the aim of this study is to identify EEG and cognitive function changes in COVID patients. We will use the FDA cleared BrainScope medical device in conjunction with standard neurocognitive tests to identify correlations with electrical biomarkers and to potentially identify new, unique patterns of altered brain electrical activity associated with COVID-19 infection. A baseline assessment will be performed shortly after hospital presentation and then a second evaluation will be performed 45-60 days post hospital discharge to reassess clinical status, brain electrical biomarkers and neurocognitive performance. The goal will be to develop an objective measurement of brain function/dysfunction associated with COVID-19 infection which might be employed in future studies of treatments for COVID-19 brain fog and to aid in tracking recovery.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

  1. Screening and Consent - Patients with a diagnosis of COVID-19 will be asked by the research personnel if they are experiencing symptoms of 'brain fog' (confusion, altered memory, headache, trouble concentrating.) Those responding affirmatively will be asked to complete a brief mental status exam (mini MoCA). Those patients scoring 25 or less out of 30 will then move forward to the formal written consent process. We will also recruit 5 control patients who are COVID positive but are not experiencing 'brainfog' symptoms.
  2. Electroencephalogram (EEG) - We will perform an EEG using a Brainscope device.
  3. Neurocognitive Assessment (brain function tests) - While the EEG electrodes are still attached, we will perform these assessments that test attention, concentration, reaction time, processing speed, decision making, and executive function. These are called the Structural Injury classifier (SIC) and Concussion Index (CI) assessments that are computed using FDA cleared algorithms for the likelihood of structural brain injury and the likelihood and severity of brain function impairment.
  4. Full MoCA assessment - After the Brainscope evaluation patients will be asked questions on the paper-based full MoCA cognitive assessment and the score will be recorded.
  5. Concussion Symptom Inventory (CSI) - Study personnel will ask questions about symptoms using the CSI which is a standardized tool for evaluating injured patients who have concussion.
  6. Inventory of COVID Symptoms - Research personnel will collect information about COVID symptoms using standardized PROMIS surveys. (Dyspnea severity and Physical Function)
  7. Demographics - We will collect demographic information that includes age and sex, along with vital signs, pulse oximetry, and supplemental oxygen requirement, physical exam, neurological exam, lab test results, medications given during hospitalization, and results of any imaging done on the head during hospitalization. Standard laboratory results including blood counts, chemistry and biomarkers of inflammation obtained as standard of care will be recorded.
  8. Follow-up Visit - Participants will return to the clinic for a follow-up visit 45-60 days after discharge from the hospital. At that visit the Brainscope EEG, mental function tests, and symptom surveys will be repeated.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
55

Contacts and Locations

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

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • United States
    • Texas
      • EL Paso, Texas, United States, 79905
        • University Medical Center of El Paso

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 85 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

Adults with COVID-19 infection who are experiencing 'brain fog' symptoms and who will admitted to the hospital.

Description

Inclusion Criteria:

  • Current COVID 19 infection
  • Experiencing 'brain fog' symptoms (e.g.confusion, mental slowness, unable to concentrate)
  • GCS of 14 or 15
  • sufficient mental capacity to provide informed consent
  • hemodynamically stable
  • able to cooperate with EEG collection and neurometric testing
  • admitted to a floor bed rather than ICU

Exclusion Criteria:

  • Head or facial trauma
  • Any abnormality that would prevent electrodes from being placed on the head
  • Known central nervous system (CNS) disease i.e. MS, Parkinson's disease
  • Know seizure disorder
  • Known dementia
  • Metabolic encephalopathy i.e. uremia, hepatic
  • Alcohol intoxication to the point they cannot give consent
  • Hypoxia that is not corrected to 92% by nasal cannula, or simple face mask
  • Chronic alcohol or drug dependence
  • Prior cerebrovascular accident (CVA)
  • Prior brain surgery
  • Known brain mass
  • Receiving sedation medications at time of consent
  • End stage renal disease (ESRD) on dialysis
  • Acute psychosis

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

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Control
Patients with COVID who are NOT experiencing altered mental status
Diagnostic test: Brainscope modified EEG and cognitive testing
Modified EEG performed using BrainScope device along with cognitive testing performed with BrainScope device and other surveys.
COVID patients
COVID patients who are experiencing confusion,
Diagnostic test: Brainscope modified EEG and cognitive testing
Modified EEG performed using BrainScope device along with cognitive testing performed with BrainScope device and other surveys.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Identify unique brain electrical activity in patients who have COVID-19 infection and 'brain fog' symptoms
Time Frame: Baseline and follow-up evaluations (45-60 days after hospital discharge)
Compile types of EEG changes demonstrated by COVID patients with 'brain fog' symptoms compared to COVID patients without 'brain fog' symptoms.
Baseline and follow-up evaluations (45-60 days after hospital discharge)

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Persistence of neurocoginitive dysfunction over time
Time Frame: Baseline and follow-up evaluations (45-60 days after hospital discharge)
Comparison of neurocognitive test results at baseline and follow-up visits
Baseline and follow-up evaluations (45-60 days after hospital discharge)

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Texas Tech University Health Sciences Center, El Paso

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
BrainScope Company, Inc.

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Edward Michelson, MD, Chair, Dept of Emergency Medicine; TTUHSC El Paso

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
April 21, 2022

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
February 19, 2024

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
February 20, 2024

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
March 28, 2022

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 28, 2022

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
March 31, 2022

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
May 18, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
May 14, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
May 1, 2025

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • E22060

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

No

Studies a U.S. FDA-regulated device product

Yes

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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