Last updated on April 2019

Post-Concussion Syndrome in Professional Athletes: A Multidisciplinary Study


Brief description of study

to examine the relationship between repeated concussions and late decline of brain function. In addition, all participants agreeing to participate in the study will be asked to will their brains to The Krembil Neuroscience Centre Concussion Project at the Toronto Western Hospital with the consent and full knowledge of their families and doctors. However, it is possible to participate in the research without agreeing to a brain donation.

The Project Team is specifically attempting a clinical-MRI-brain tissue research analysis to determine the exact mechanism of the damage to brain tissue following repeated concussions. This condition is known as chronic traumatic encephalopathy (CTE), and shows an abnormal protein in the brain called tau-protein.

Detailed Study Description

We hypothesize that repeated concussions in retired professional athletes will be associated with abnormalities in neurological, neuropsychological, biofluids and neuroimaging assessments. The primary objectives of the study are:

  1. To determine the effects of repeated concussions on neurological, neuropsychological and psychosocial functioning.
  2. To determine the relationship between repeated concussions and neuroanatomical abnormalities in brain gray and white matter subserving cognitive and motor functions using structural MRI assessment.
  3. To determine the relationship between repeated concussions and changes in the cerebrospinal fluid composition.
  4. To (i) establish the infrastructure to conduct ongoing pathological examination of donated brains.
  5. In order to investigate whether the effects of repeated concussions on brain function and brain structure are progressive and related to the condition known as Chronic Traumatic Encephalopathy, prospective, longitudinal, follow-up data will be collected

Clinical Study Identifier: NCT03218332

Find a site near you

Start Over