NCT06147596

Brief Summary

The goal of this observational study is to evaluate the safety of heading in football. We will study the release of biomarkers in blood that reflect microscopic neural damage. The main questions this study aims to answer are:

  • Does participation in a football match lead to a change in biomarkers that reflect microscopic neural damage?
  • Is the dose of exposure during a football match related to the magnitude of change in biomarkers that reflect microscopic neural damage? Participants will participate in a regular football match and provide blood samples before and right after the football match. The football match will be recorded on video to count the number of headers of all participants.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
335

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Aug 2024

Shorter than P25 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

October 5, 2023

Completed
2 months until next milestone

First Posted

Study publicly available on registry

November 27, 2023

Completed
9 months until next milestone

Study Start

First participant enrolled

August 13, 2024

Completed
4 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 17, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 17, 2024

Completed
Last Updated

May 13, 2025

Status Verified

January 1, 2025

Enrollment Period

4 months

First QC Date

October 5, 2023

Last Update Submit

May 8, 2025

Conditions

Keywords

HeadingSoccerHead impactBlood biomarkerNeurodegeneration

Outcome Measures

Primary Outcomes (1)

  • Concentration of serum neurofilament light protein

    The difference in serum neurofilament light protein between pre-match samples and post-match samples.

    T0 (<1hour pre-match), T1 (<1hour post-match), T2 (<48hour post-match)

Secondary Outcomes (5)

  • Concentration of serum S100B protein

    T0 (<1hour pre-match), T1 (<1hour post-match), T2 (<48hour post-match)

  • Concentration of serum p-tau protein

    T0 (<1hour pre-match), T1 (<1hour post-match), T2 (<48hour post-match)

  • Concentration of serum Neuron Specific Enolase protein

    T0 (<1hour pre-match), T1 (<1hour post-match), T2 (<48hour post-match)

  • Concentration of serum Glial Fibrillary Acidic Protein

    T0 (<1hour pre-match), T1 (<1hour post-match), T2 (<48hour post-match)

  • Concentration of serum beta-synuclein

    T0 (<1hour pre-match), T1 (<1hour post-match), T2 (<48hour post-match)

Study Arms (1)

Soccer

Healthy volunteers that participate in the study by playing a regular soccer game for the sake of the HEADLINE study

Other: Head impact exposure

Interventions

The cohort is exposed to naturalistic head impacts (heading) during voluntary participation in a soccer match. All participants are regular soccer players and are therefore not exposed to excessive head impacts compared to their regular exposure.

Soccer

Eligibility Criteria

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

All senior amateur football players will be invited to participate in the study. An amateur population is chosen because of the great number of participants and the resulting societal relevance of the research question.

You may qualify if:

  • Member of the KNVB;
  • years or older;
  • Male
  • Self-reported fitness to play 70-90 minutes (absence of injury).

You may not qualify if:

  • Sustained a head injury in the last year;
  • History or current neurological condition;
  • Regular participation in other contact sports (e.g. rugby, American football, ice hockey, fighting sports);
  • (Former) military personnel with a history of fighting/blast exposure

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Amsterdam UMC

Amsterdam, 1105AZ, Netherlands

Location

Biospecimen

Retention: SAMPLES WITH DNA

Whole blood is collected with the possibility of DNA analysis in the future.

MeSH Terms

Conditions

Craniocerebral TraumaBrain ConcussionChronic Traumatic EncephalopathyNerve Degeneration

Condition Hierarchy (Ancestors)

Trauma, Nervous SystemNervous System DiseasesWounds and InjuriesBrain Injuries, TraumaticBrain InjuriesBrain DiseasesCentral Nervous System DiseasesHead Injuries, ClosedWounds, NonpenetratingBrain Injury, ChronicNeurodegenerative DiseasesBrain Damage, ChronicChronic DiseaseDisease AttributesPathologic ProcessesPathological Conditions, Signs and Symptoms

Study Officials

  • Jaap Oosterlaan, Prof.Dr.

    Amsterdam UMC

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Director Follow me programme

Study Record Dates

First Submitted

October 5, 2023

First Posted

November 27, 2023

Study Start

August 13, 2024

Primary Completion

December 17, 2024

Study Completion

December 17, 2024

Last Updated

May 13, 2025

Record last verified: 2025-01

Locations