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NCT Number: NCT04708613

University of Pittsburgh Brain Health Initiative

This project will define the prevalence of brain health (i.e., normal cognitive, neuromotor, behavioral function) in living professional football retirees and group-matched controls through a comprehensive assessment of clinical, neuroimaging, and biomarker measures.

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Key information

Age range

29 year–59 year

Sex eligibility

Male

Study type

Observational

Primary location

University of Pittsburgh Department of Neurosurgery

Pittsburgh, Pennsylvania, 15213, United States

Location status: Recruiting

Location contact

Anthony Kontos, PhD

PRINCIPAL_INVESTIGATOR

David O Okonkwo, MD, PhD

PRINCIPAL_INVESTIGATOR

James Mountz, MD, PhD

PRINCIPAL_INVESTIGATOR

Jane Sharpless, MS

CONTACT

[email protected]

412-648-2176

Kathryn Edelman, MS

CONTACT

[email protected]

412-624-1077

Michael Collins, PhD

PRINCIPAL_INVESTIGATOR

Oscar Lopez, MD

PRINCIPAL_INVESTIGATOR

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Former professional football player/exposed group:

  • Professional football retiree aged 29-59
  • Played a minimum of 3 professional football seasons, with a minimum of 3 games in each season
  • Fluent in English (translations are not available/validated for most neuropsychological tests)

Control/unexposed group:

  • Age 29-59 male
  • High school education or beyond
  • Fluent in English (translations are not available/validated for most neuropsychological tests)

Exclusion criteria

Control/unexposed group:

  • Played organized football beyond high school
  • History of severe TBI
  • Current unstable cardiovascular disorder

For both groups:

  • Prior history of psychosis (such as schizophrenia), or other major neurological disorder that would interfere with testing, in the opinion of the primary investigator.
  • Contraindication to MR imaging, such as ferrous metal, pacemakers, or concerns about claustrophobia

Treatment and study plan

Cognitive/Neuropsychological Testing

Diagnostic Test

Comprehensive testing of cognitive function and brain health.

Vestibular/Ocular-Motor Testing

Diagnostic Test

A series of tests and questionnaires that asses vestibular function, balance, ocular-motor coordination, and reflexes.

Sleep Evaluation

Diagnostic Test

A full assessment of sleep health, including insomnia (duration, frequency, daytime consequences) and other sleep disorders such as obstructive sleep apnea. Overnight sleep study is included.

MRI, High-Resolution

Diagnostic Test

A high-resolution MRI to provide qualitative and quantitative assessments of brain structure.

Health & Physical Exam

Diagnostic Test

Participants will undergo an executive history and physical exam of all body systems.

Physical Function

Diagnostic Test

These assessments will involve a series of tests and questionnaires that focus on physical function.

Blood Testing and Biomarker Analysis

Diagnostic Test

A blood draw will be performed to measure standard clinical labs as part of a full history and physical, as well as additional analysis of biomarkers indicative of brain health.

An optional lumbar puncture will be performed and CSF samples (20-30 mL) stored in the NCTC Biorepository until shipment to the CLIA-certified laboratory.

Both CSF and blood samples will be analyzed for t-tau, p-tau, and Aβ42 and stored for future testing,

Applanation tonometry

Diagnostic Test

Hearth health is evaluated through testing of arterial stiffness and pulse wave reflections using a high fidelity applanation tonometer.

Other names: Continuous arterial pressure

PET brain imaging

Diagnostic Test

PET imaging of the brain using tau and amyloid ligands.

[C-11]6-OH-BTA-1

Drug

PET imaging of the brain using an amyloid ligand.

Other names: Pittsburgh Compound B

[F-18]AV-1451

Drug

PET imaging of the brain using a tau ligand.

Other names: [F-18]T807, LY3191748

Primary outcomes

  1. Rates of Brain Health versus Cognitive Impairment

    Time frame: 1-week

    The diagnosis of cognitive impairment is based on the ADRC National Alzheimer's Coordinating Center (NACC) criteria for mild cognitive impairment. This criteria is adjudicated following a comprehensive neuropsychological exam, and includes: (1) Self- or informant-reported cognitive complaint, (2) Objective cognitive impairment, (3) Preserved independence in functional abilities, and (4) No dementia.

Secondary outcomes

  1. Clinical Syndromes of Neurodegeneration

    Time frame: 1-week

    The determination of trauma-related neurodegeneration will be based on: 1) presence of cognitive deficits, and/or neuromotor manifestations, and/or behavioral/mood-related symptoms; 2) PET scans demonstrating abnormal amyloid and/or tau deposition; 3) quantitative MR evidence of cortical volume loss and/or white matter injury; and 4) elevated CSF tau/Aβ42 ratio.

    These multiple measures will be combined to arrive at a single overall outcome measure. This will be adjudicated at a blinded Diagnostic Consensus Conference comprised of experts from each field.

Study contacts

Contact information is provided by the study sponsor or research team.

Kathryn L Edelman, MS

CONTACT

[email protected]

412-624-1077

Sponsors and collaborators

Lead sponsor

David Okonkwo, MD, PhD

Other

Collaborators

  • Avid Radiopharmaceuticals, Inc.
  • Harvard University
  • National Football League

Registry information

Official study title

Prevalence of Brain Health Versus Neurodegeneration in Former Professional Football Players

Acronym: BHI

Important dates

Study start
2019
Primary completion
2026
Study completion
2026
First posted
Jan 14, 2021
Registry last updated
Jun 22, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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