Post-Concussion Study

Recruitment Paused

Photobiomodulation Therapy for Post-Concussion Symptoms

We are looking for individuals who have been experiencing concussion symptoms for more than 3 months to participate in a study investigating the effectiveness of light therapy on brain function and concussion symptoms. Photobiomodulation therapy (PBMT) is a painless, non-invasive procedure that uses red and near infrared light to penetrate tissues up to a certain depth. Several studies have shown benefit in using PBMT in the treatment of certain neurological conditions, including chronic traumatic brain injury.

What the study will include:

  • The 8 week study consists of three 1-hour sessions weekly for a total of 24 hours of treatment. Current COVID-19 safety measures are included at the clinic.
  • In this study, active or sham (placebo) PBMT will be offered through the BioFlex Dualport system, which is approved for use in Canada for the treatment of the cervical spine, but has not yet been approved for individuals with post-concussion syndrome.


You may qualify as a study participant if:

  • You have persistent (>3 months) post-concussive symptoms following a closed-head mild traumatic brain injury
  • You have not previously used photobiomodulation therapy, taken photosensitizing medication, or have a history of other major neurological disorder(s)
  • You are 19 years or older
  • You are fluent in English


The study requires you to participate in-person at the Surrey Neuroplasticity Clinic (located at City Centre 1, 13737 96th Avenue, Unit 204, Surrey, BC)

Phone number: 778-580-5844

Email: [email protected]

Site Principal Investigator (Study Doctor):


Dr George Medvedev, MD, FRCPC Neurology


The recruitment has been paused at our location for this study.
Recruitment is ongoing at the Bioflex Laser Therapy Clinic in Toronto, Ontario. Contact [email protected] for more information. 

If you are interested in being contacted about future studies for concussion or traumatic brain injury
at our location in Surrey, BC, please register below.