Understanding brain function during the dying process

Characterizing the Cerebrovascular Physiology of Circulatory Death During Withdrawal of Life Sustaining Therapies in Humans

Observational University of British Columbia · NCT06130033

This study looks at how the brain works during the dying process in ICU patients to see if it can help improve organ donation.

Quick facts

Study typeObservational
Enrollment50 (estimated)
Ages19 Years and up
SexAll
SponsorUniversity of British Columbia Academic / other
Locations1 site (Vancouver, British Columbia)
Trial IDNCT06130033 on ClinicalTrials.gov

What this trial studies

This observational study aims to investigate the physiological changes in the brain during circulatory arrest in patients at the end of life in the ICU. Researchers will monitor brain blood flow and oxygenation while collecting blood samples to assess biomarkers of brain dysfunction at the time of withdrawal of life-sustaining therapies. The findings may help determine the timing of brain function cessation, which is crucial for optimizing organ donation processes. This study represents an initial step towards enhancing the quality of organs available for transplantation.

Who should consider this trial

Good fit: Ideal candidates for this study are adults over 18 years old who are expected to have life-sustaining measures withdrawn within the next 24 hours.

Not a fit: Patients who have already been declared neurologically brain dead or do not have an in-situ arterial line will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could improve the timing and quality of organ donations, ultimately saving more lives.

How similar studies have performed: While this approach is novel in its specific focus on the physiology of circulatory death, similar studies have explored aspects of organ donation and brain function, indicating potential for success.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* a) Age \> 18 years
* b) anticipated withdrawal of life-sustaining measures (WLSM) within the next 24 hours

Exclusion Criteria:

* No in-situ arterial line
* No legal authorized representative
* Neurological brain death declared

Where this trial is running

Vancouver, British Columbia

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Circulatory Arrest
Last reviewed 2026-06-09 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.