๐Ÿ›๏ธ Verified NIH Record โ€ข Updated 2026-02-19

Carbon Dioxide Administration and Brain Waste Clearance (NCT07357090)

Mechanisms Underlying Carbon Dioxide Induced Protein Efflux in Health and Traumatic Brain Injury

๐ŸŸข Recruiting Observational / Diagnostic ๐Ÿ“‹ Clinical Research Protocol Sponsor: Andrew Mayer

๐Ÿฉบ Plain-English Summary (8th-Grade Level)

The current study tests whether different exposures to carbon dioxide (CO2) can safely result in the increased movement of proteins from the brain into the blood. The investigators believe that this would be a proxy for the brain clearing waste products more effectively. The current study will use a counter-balanced design, in which individuals with and without a history of traumatic brain injury (TBI) will receive different levels of CO2 (targeted changes of approximately 5 or 10 mmHG in end-tidal CO2) approximately one week apart. The counter-balanced design means that each participant receives a single dose of CO2 at each visit, and different doses of CO2 at each visit. The order in which participants receive the dose is randomized, and the participant will not be informed of the dose.

Who can join: Review the eligibility criteria below.

Location: The Mind Research Network โ€” Albuquerque, New Mexico

Age range: 18 Years to 82 Years

๐Ÿงช Interventions in This Study

  • Hypercapnia task performed during fMRI (OTHER)

๐Ÿ“‹ "Do I Qualify?" โ€” 1-Minute Self Screener

Instant Checklist

Full eligibility criteria are available on the official NIH protocol. View the criteria โ†—

๐Ÿ“ All Participating Trial Locations (1 Sites)

  • The Mind Research Network โ€” Albuquerque, New Mexico

๐Ÿ“ž Contact the Study Coordinator

Phone: (505) 272-5028

Email: jroberts@mrn.org

Coordinator details come directly from the registered NIH protocol. Confirm the study is still recruiting before traveling.

๐Ÿ’ฐ Cost, Insurance & Patient Rights

  • 100% Free Items: The investigational treatment and protocol-required procedures are supplied at zero cost by the sponsor.
  • Routine Patient Care: Under federal law (ACA ยง 2709) and many state statutes, routine care costs are covered during participation.
  • Voluntary Participation: You may withdraw at any time without affecting your standard medical care.

๐Ÿ’ก How to Participate

  1. Check the checklist above to see if you may qualify.
  2. Contact the study coordinator using the phone/email above.
  3. Ask about the visit schedule, what is covered at no cost, and any travel support.
  4. Confirm with your own doctor before making a decision.
๐Ÿ›๏ธ View Official NIH Record โ†—