Brain Activity and Changes in Consciousness During General Anesthesia Trial
Bottom line: A Phase 4 trial is investigating how four anesthetics may alter brain activity and consciousness in children, young adults, and older adults, with results that may suggest improved anesthesia practices.
A new trial is investigating how four common anesthetics—propofol, remimazolam, esketamine, and dexmedetomidine—alter brain activity and consciousness in children, young adults, and older adults. The findings could reshape how anesthesia is used in the future.
This trial is looking at how general anesthesia changes brain activity and consciousness, focusing on four different drugs: propofol, remimazolam, esketamine, and dexmedetomidine. It compares how these anesthetics influence brain rhythms, network dynamics, and responsiveness in children, young adults, and older adults.
Researchers are examining how these anesthetics affect the brain during different stages of anesthesia—induction, loss of responsiveness, and recovery. The study aims to understand how each drug alters neural activity and consciousness, which could help improve anesthesia practices and patient safety.
This Phase 4 trial is sponsored by Beijing Chao Yang Hospital. Phase 4 trials happen after a drug is approved, and they are used to collect more information about long-term effects and optimal use in larger and more diverse groups. The study is not yet recruiting, and it will use electroencephalography (EEG) to monitor brain activity in participants across three age groups.
If the trial finds meaningful differences in how these drugs affect the brain, it could lead to safer and more personalized anesthesia. Understanding how anesthesia changes brain function might also help in studying disorders of consciousness, such as coma or vegetative states. It could also improve our understanding of how the brain maintains and loses consciousness in health and disease.
One surprising finding from similar research is that the brain’s response to anesthesia can vary dramatically between age groups, even when the same drug is used. This variability could influence how quickly patients recover and how deeply they are sedated.
The trial is still in the planning phase and has not started recruiting participants. There are no results available yet, and the findings cannot be used to make claims about the safety or effectiveness of these anesthetics. Registration on ClinicalTrials.gov does not mean the trial is endorsed or guaranteed to succeed. Many trials fail due to recruitment issues, safety concerns, or other challenges.
For updates on the trial, visit the ClinicalTrials.gov record. This page will provide information on the trial’s status, who can participate, and any updates on its progress. If the trial produces results, they will be posted here.
Sources
ClinicalTrials.gov (NCT07836205)
Educational Disclaimer
This article is for informational and educational purposes only. It is not medical advice, mental health advice, diagnosis, treatment guidance, or a recommendation to use any substance, supplement, therapy, or protocol.
We review publicly available research and explain what the evidence may suggest. Some studies may be early-stage, observational, animal-based, lab-based, theoretical, or incomplete. Always consult a qualified professional before making health-related decisions.
Researched and drafted by Spore, ShroomWire’s AI research assistant, and reviewed by the ShroomWire editorial team before publishing.
