NCT06920628

Brief Summary

Background: SARS-CoV-2 is the virus that causes COVID-19. Some people who recover from COVID-19 have long-term symptoms that affect the brain. These include headaches; loss of taste and smell; sleep problems; thinking problems; depression; and anxiety. Researchers want to know if a tracer (a substance that is injected into a person s body before an imaging scan) can help identify inflammation in people with these brain disorders. Objective: To see if a radioactive tracer (\[11C\]PS13) can highlight brain inflammation in those who had COVID-19 but still have symptoms that affect the brain. Eligibility: Adults aged 18 to 70 years with post COVID-19 brain disorders who are enrolled in protocol 000089 or 000711. Healthy volunteers are also needed. Design: Participants will have up to 5 clinic visits. Participants will be screened. They will have blood tests and a test of their heart function. They will have imaging scans: Magnetic resonance imaging (MRI): They will lie on a table that slides into a metal tube. Pictures will be taken of the brain. Positron emission tomography (PET): A needle attached to a thin tube will be inserted into a vein in the arm. The tracer will be injected through the tube. Another needle attached to a thin tube will be inserted into the wrist or inside of the elbow of the other arm to draw blood. They will lie still on a bed while a machine captures images of their brain. The scan will last about 2 hours. Study involvement is 11 to 14 weeks....

Trial Health

77
On Track

Trial Health Score

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

Enrollment
60

participants targeted

Target at P75+ for phase_1

Timeline
34mo left

Started Jun 2025

Typical duration for phase_1

Geographic Reach
1 country

1 active site

Status
recruiting

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

Study Progress24%
Jun 2025Feb 2029

First Submitted

Initial submission to the registry

April 9, 2025

Completed
1 day until next milestone

First Posted

Study publicly available on registry

April 10, 2025

Completed
2 months until next milestone

Study Start

First participant enrolled

June 18, 2025

Completed
2.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 22, 2028

Expected
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

February 22, 2029

Last Updated

March 3, 2026

Status Verified

February 27, 2026

Enrollment Period

2.7 years

First QC Date

April 9, 2025

Last Update Submit

February 28, 2026

Conditions

Keywords

InflammationCOVIDSARSNeuro-PASC

Outcome Measures

Primary Outcomes (1)

  • To measure distribution volume for 11C-PS13

    Target quantification of COX-1

    36 months

Secondary Outcomes (4)

  • Voxel-wise correlation of distribution volume between healthy volunteers and Neuro-PASC participants

    36 months

  • Correlation of Distribution Volume with CRP

    36 months

  • Correlation of Distribution Volume with Finger Tapping Speed

    36 months

  • Correlation of Distribution Volume with Clinical Improvement

    36 months

Study Arms (1)

one arm

OTHER

All subjects will receive the same tests

Drug: 11C-PS13

Interventions

Injected IV followed by PET scanning.

one arm

Eligibility Criteria

Age18 Years - 70 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients: To be eligible for this study, Neuro-PASC participants must meet all of the following criteria:
  • Aged 18 to 70 years of age.
  • Participants must be in good general health as evidenced by medical history and physical examination.
  • Each participant must have a level of understanding sufficient to agree to all required tests and examinations and sign an informed consent document.
  • Participants must have undergone a screening assessment under protocol #000089, Natural History of Post-Coronavirus Disease 19 Convalescence at the National Institutes of Health or #000711 Immunotherapy for Neurological Post-Acute Sequelae of SARSCoV-2 (INPASC) and determined to have neuro-PASC.
  • Participants must have had their radial artery pulse checked for the presence of adequate ulnar collateral flow and the absence of any metal or foreign objects in both wrists.
  • Participants must agree to adhere to the lifestyle considerations.
  • Healthy Volunteers: To be eligible to participate in this study, healthy volunteers must meet all of the following criteria:
  • Aged 18 to 70 years of age.
  • Able to provide informed consent.
  • Be in good general health, as evidenced by medical history and physical examination, and have no cognitive impairment.
  • Does not have an active SARS-CoV-2 infection. The protocol will conform with NIH CC standards for documenting a participant does not have active SARS-CoV-2 infection. This may include screening interviews and/or testing.
  • Participants must be at least six weeks out since the onset of SARS-CoV-2 symptoms with no fever for at least one week.
  • Participants must report having at least one prior SARS-CoV-2 infection.
  • Be enrolled in 01M0254, The Evaluation of Participants with Mood and Anxiety Disorders and Healthy Volunteers or 17M0181, Recruitment and Characterization of Healthy Research Volunteers for NIMH Intramural Studies .
  • +2 more criteria

You may not qualify if:

  • Participants with Neuro-PASC who meet any of the following criteria will be excluded from participation in this study:
  • Clinically significant abnormalities on EKG or laboratory testing based on individual clinical judgement. This includes CBC and acute care panel (Na, K, Cl, CO2, creatinine, glucose, urea nitrogen). Any lab value that is two times the upper limit or lower values, as per the investigator s judgment. Creatinine level \>1.3 mg/dL.
  • Participants should not have taken Non-Steroidal Anti-Inflammatory Drug (NSAID)s for two weeks prior to each PET scan. Corticosteroids (with the exception of topical steroids), or immunosuppressants (e.g. methotrexate) must not have been taken within one month prior to each PET scan.
  • Participants who have an unstable medical condition that, in the opinion of the investigators, makes participation unsafe (e.g., an active infection or untreated malignancy).
  • Are unable to travel to the NIH.
  • Have recent exposure to radiation related to research (e.g., PET from other research) that, when combined with this study, would be above the allowable limits as determined by the study team.
  • Have an inability to lie flat and/or lie still on the camera bed for at least two hours,including claustrophobia, overweight greater than the maximum for the scanner, and uncontrollable behavioral symptoms, which will be screened by an interview with the participant during the screening visit.
  • Are unable to have an MRI scan (e.g., because of pacemakers or other implanted electrical devices, brain stimulators, dental implants, aneurysm clips (metal clips on the wall of a large artery), metallic prostheses (including metal pins and rods, heart valves, and cochlear implants), permanent eyeliner, implanted delivery pumps, shrapnel fragments, or metal fragments in the eye.
  • Pregnancy or Breastfeeding Women.
  • HIV Infection.
  • Healthy volunteers who meet any of the following criteria will be excluded from participation in this study:
  • Clinically significant abnormalities on EKG or laboratory testing. This includes CBC and acute care panel (Na, K, Cl, CO2, creatinine, glucose, urea nitrogen).
  • Participants should not have taken Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) for two weeks prior to the PET scan. Corticosteroids (with the exception of topical steroids), or immunosuppressants (e.g., methotrexate) must not have been taken within one month prior to the PET scan.
  • Participants with an active SARS-CoV-2 infection.
  • Are unable to travel to the NIH.
  • +5 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

National Institutes of Health Clinical Center

Bethesda, Maryland, 20892, United States

RECRUITING

Related Links

MeSH Terms

Conditions

Post-Acute COVID-19 SyndromeInflammation

Interventions

11C-PS13

Condition Hierarchy (Ancestors)

COVID-19Pneumonia, ViralPneumoniaRespiratory Tract InfectionsInfectionsVirus DiseasesCoronavirus InfectionsCoronaviridae InfectionsNidovirales InfectionsRNA Virus InfectionsLung DiseasesRespiratory Tract DiseasesPost-Infectious DisordersChronic DiseaseDisease AttributesPathologic ProcessesPathological Conditions, Signs and Symptoms

Study Officials

  • Robert B Innis, M.D.

    National Institute of Mental Health (NIMH)

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Tara N Turon, C.R.N.P.

CONTACT

Robert B Innis, M.D.

CONTACT

Study Design

Study Type
interventional
Phase
phase 1
Allocation
NA
Masking
NONE
Purpose
DIAGNOSTIC
Intervention Model
SINGLE GROUP
Sponsor Type
NIH
Responsible Party
SPONSOR

Study Record Dates

First Submitted

April 9, 2025

First Posted

April 10, 2025

Study Start

June 18, 2025

Primary Completion (Estimated)

February 22, 2028

Study Completion (Estimated)

February 22, 2029

Last Updated

March 3, 2026

Record last verified: 2026-02-27

Data Sharing

IPD Sharing
Will share

The results will be submitted to ClinicalTrials.gov

Shared Documents
STUDY PROTOCOL
Time Frame
18 months after closure of protocol.
Access Criteria
BTRIS

Locations