NFL LONG Prospective Study

NCT04263337 · Status: ACTIVE_NOT_RECRUITING · Phase: PHASE1 · Type: INTERVENTIONAL · Enrollment: 250

Last updated 2026-04-22

No results posted yet for this study

Summary

The purpose of this 5-year prospective research study is to characterize the association between concussions, sub-concussive exposure, and long-term neurologic health outcomes in former NFL players. To achieve the study aims, the investigators will conduct detailed research visits that include clinical outcome assessments, blood-based biomarkers, advanced magnetic resonance imaging (MRI), positron emission tomography (PET) using investigational tracers and genetic testing. Ultimately, the goal of this study is to translate the findings from this study into clinical, interventional studies for at risk former NFL players.

Conditions

  • Concussion, Brain

Interventions

DRUG

[11C] PiB

Per study protocol static PET images will be acquired after IV infusion of CPiB to generate standard uptake values (SUVs). PET imaging is necessary in order to address the primary and secondary outcome measures as a component of neurological health (i.e., presence of proteinopathies empirically associated with neurodegenerative disease, cognitive decline, and neurological signs/symptoms). All groups will participate in this portion of the protocol.

DRUG

[18F] PBR111

Per study protocol static PET images will be acquired after IV infusion of F-PBR111 to generate standard uptake values (SUVs). PET imaging is necessary in order to address the primary and secondary outcome measures as a component of neurological health (i.e., presence of proteinopathies empirically associated with neurodegenerative disease, cognitive decline, and neurological signs/symptoms). All groups will participate in this portion of the protocol.

DRUG

[18F] Flortaucipir

Per study protocol static PET images will be acquired after IV infusion of F-T807 to generate standard uptake values (SUVs). PET imaging is necessary in order to address the primary and secondary outcome measures as a component of neurological health (i.e., presence of proteinopathies empirically associated with neurodegenerative disease, cognitive decline, and neurological signs/symptoms). All groups will participate in this portion of the protocol.

Sponsors & Collaborators

  • Boston Children's Hospital

    collaborator OTHER
  • Medical College of Wisconsin

    collaborator OTHER
  • National Football League

    collaborator OTHER
  • University of North Carolina, Chapel Hill

    lead OTHER

Principal Investigators

  • William Meehan, MD · Boston Children's Hospital

  • Michael McCrea, PhD · Medical College of Wisconsin

  • Jason Mihalik, PhD · University of North Carolina, Chapel Hill

Study Design

Allocation
NON_RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
50 Years
Max Age
70 Years
Sex
MALE
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2020-03-12
Primary Completion
2028-08-31
Completion
2028-08-31
FDA Drug
Yes

Countries

  • United States

Study Locations

More Related Trials

Entities

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04263337 on ClinicalTrials.gov