Carbon Dioxide for Traumatic Brain Injury

(COPETBI Trial)

This trial explores whether inhaling specific amounts of carbon dioxide (CO2) can help the brain clear waste products more effectively. Researchers are studying individuals with a history of traumatic brain injury (TBI) and those without to observe how their brains respond to CO2. Participants will receive different doses of CO2 during separate visits. Suitable candidates include adults who have experienced a traumatic brain injury or are healthy without a history of severe head injuries or major health issues like severe asthma or heart problems. As an unphased trial, this study offers a unique opportunity to contribute to groundbreaking research on brain health.

The trial information does not specify whether you need to stop taking your current medications. However, if you have a respiratory disease or a condition that might increase the risk of the study procedures, you may be excluded from participating.

Research has shown that carbon dioxide (CO2) levels are important in patients with traumatic brain injury (TBI). Some studies have found that higher CO2 levels in the blood are linked to worse outcomes for these patients, highlighting the need to closely monitor CO2 levels.

This trial aims to determine if different CO2 levels can help the brain clear waste safely. Participants will receive varying amounts of CO2 to test this. The study is in the "Not Applicable" phase, indicating it isn't yet focused on human safety. However, since CO2 is naturally found in the body and used in controlled settings, it is generally safe in small, controlled amounts.

Researchers are excited about using carbon dioxide administration for traumatic brain injury (TBI) because it explores a unique method of treatment. Unlike traditional approaches that focus on managing symptoms or preventing further injury, this technique aims to regulate blood flow in the brain directly by adjusting levels of carbon dioxide. This could potentially offer a more immediate and targeted way to help the brain recover after trauma, especially since current treatments mainly involve supportive care and medications that can take longer to show effects. By fine-tuning the carbon dioxide levels, researchers hope to optimize brain function and enhance recovery in individuals with TBI.

This trial will explore the effects of carbon dioxide (CO2) administration on individuals with traumatic brain injury (TBI) and healthy subjects. Research has shown that CO2 levels can affect recovery outcomes for TBI patients. Higher CO2 levels in the blood are linked to worse outcomes for TBI patients who need breathing support. Studies have also found a connection between the CO2 levels in a person's breath and the severity of their TBI. While the exact reasons are still under investigation, these findings suggest that managing CO2 levels might help remove waste from the brain more effectively, possibly leading to better recovery for TBI patients.¹³⁶⁷⁸