NCT04564287

Brief Summary

Background: COVID-19 is an infection caused by a coronavirus. It can affect different parts of the body. For most people, it causes fevers or trouble breathing. Some people can have symptoms long after they recover. Researchers want to learn if there are signs of changes in the nervous system that may be related to COVID-19. Objective: To test the nervous system (the brain and nerves) in people who have had COVID-19 yet still have certain symptoms even after recovering. Eligibility: People age 18 and older who had COVID-19 and still have neurologic symptoms after they recovered from the initial infection. Design: Participants will be screened with a medical record review. Participants will have a neurological exam. They will complete pen-and-paper tests of their memory and thinking. They will complete a smell test with 'scratch-and-sniff' booklets. They will give blood samples. Participants will have magnetic resonance imaging (MRI) of the brain. Soft padding or a coil will be placed around their head. They will lie on a table that slides in and out of the MRI scanner. They will get a contrast dye through an intravenous (IV) catheter. Participants blood pressure, blood flow, skin temperature, sweating, and breathing will be monitored. Participants will have an electrocardiogram to measure heart function. Participants will blow into a mouthpiece for several seconds. Participants will lie on a table that has a motor. The motor tilts the table. Participants will have blood drawn through an IV as the table tilts. Participants will have a lumbar puncture. A small needle will be inserted into the spinal canal to obtain fluid. Participants may repeat some tests 8 weeks to 1 year later.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
13

participants targeted

Target at below P25 for all trials

Timeline
Completed

Started Oct 2020

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

September 24, 2020

Completed
1 day until next milestone

First Posted

Study publicly available on registry

September 25, 2020

Completed
1 month until next milestone

Study Start

First participant enrolled

October 28, 2020

Completed
2.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 12, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

April 12, 2023

Completed
Last Updated

December 1, 2025

Status Verified

November 1, 2025

Enrollment Period

2.5 years

First QC Date

September 24, 2020

Last Update Submit

November 26, 2025

Conditions

Keywords

NeurologicalCOVID-19CoronavirusAutonomicBrainNatural History

Outcome Measures

Primary Outcomes (1)

  • MRI brain

    The number and character of brain MRI abnormalities on a dedicated research MRI protocol optimized to detect Covid-19-associated disease.

    NIH Clinical Center Visit

Secondary Outcomes (2)

  • Neurological Examination

    NIH Clinical Center Visit

  • Autonomic Testing

    NIH Clinical Center Visit

Study Arms (2)

Fully Recovered Individuals

Individuals with history of Covid-19 infection who have fully recovered without residual neurological symptoms

Patients with neuro-PASC

Patients with history of Covid-19 infection and persistent neurological symptoms (Post-Acute Sequelae of SARS CoV-2 Infection, neuro-PASC)

Eligibility Criteria

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

Community Sample

You may qualify if:

  • In order to be eligible to participate in the PASC cohort, an individual must meet all of the following criteria:
  • Stated willingness to comply with all study procedures and availability for the duration of the study
  • Male or female, aged at least 18 years at the time of enrollment
  • Enrolled in the screening phase of Protocol 000089 Post-Coronavirus Disease 19 Convalescence at the National Institutes of Health
  • Do you have ongoing issues with being lightheaded or dizzy and if so, are these issues made worse when you sit or stand up
  • quickly?
  • Do you have ongoing issues with gait instability, problems with vision, speech, swallowing?
  • Do you have ongoing issues with sensation or strength in your face/arms/legs?
  • Ability of subject to understand and the willingness to sign a written informed consent document.
  • In order to be eligible to participate in the Fully Recovered cohort, an individual must meet all of the following criteria:
  • Stated willingness to comply with all study procedures and availability for the duration of the study
  • Male or female, aged at least 18 years at the time of enrollment
  • Enrolled in the screening phase of Protocol 000089 Post-Coronavirus Disease 19 Convalescence at the National Institutes of Health
  • A self-reported illness narrative of recovery to prior health after a SARS/CoV2 infection, without residual fatigue, brain fog, orthostatic intolerance, or exercise intolerance.
  • Ability of subject to understand and the willingness to sign a written informed consent document.

You may not qualify if:

  • An individual who meets any of the following criteria will be excluded from participation in this study:
  • Presence of a contraindication to research MRI with gadolinium, including contraindicated metal in the body, prior allergic reaction to gadolinium, eGFR \<45 mmol/L, pregnancy or lactation, or claustrophobia that is unable to be adequately treated with a low oral dose of a benzodiazepine.
  • Contraindication to a research lumbar puncture, including use of anticoagulant medication, platelets \< 50,000/microL, PT or PTT \>1.5 x ULN for the NIH Clinical Center, or otherwise inability to complete the procedure.
  • Contraindication to autonomic testing, including refractory ventricular arrhythmias or symptomatic coronary artery disease.
  • A condition prior to the diagnosis of COVID-19 infection that would significantly confound interpretation of the research tests (e.g., prior diagnosis of postural orthostatic tachycardia syndrome), as determined by the study investigators.
  • Fever or respiratory symptoms in the last seven days.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

National Institutes of Health Clinical Center

Bethesda, Maryland, 20892, United States

Location

Related Links

MeSH Terms

Conditions

COVID-19Neurologic ManifestationsCoronavirus Infections

Condition Hierarchy (Ancestors)

Pneumonia, ViralPneumoniaRespiratory Tract InfectionsInfectionsVirus DiseasesCoronaviridae InfectionsNidovirales InfectionsRNA Virus InfectionsLung DiseasesRespiratory Tract DiseasesNervous System DiseasesSigns and SymptomsPathological Conditions, Signs and Symptoms

Study Officials

  • Avindra Nath, M.D.

    National Institute of Neurological Disorders and Stroke (NINDS)

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
NIH
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 24, 2020

First Posted

September 25, 2020

Study Start

October 28, 2020

Primary Completion

April 12, 2023

Study Completion

April 12, 2023

Last Updated

December 1, 2025

Record last verified: 2025-11

Data Sharing

IPD Sharing
Will not share

Locations