Anesthesia study probes Painkiller's brain impact
NCT ID NCT06237101
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at how the painkiller remifentanil changes brain activity in 20 healthy adults (ages 18-60) having planned surgery. Participants will receive standard anesthesia with propofol and remifentanil. Researchers will measure brain waves to see if remifentanil helps propofol produce a deep sleep pattern called burst suppression. The goal is to better understand how these drugs work together.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
-
Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
-
About 20 people
The number the study aims to enrol. It can still change while the study runs.
- Started
-
Mar 2024
- Expected to finish
-
Sep 2026
An estimate. End dates often move.
- Lead sponsor
-
Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
-
18 to 60 years
- Sex
-
Anyone
- Healthy volunteers
-
Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * American Society of Anesthesiology I or II * Elective surgery of low or intermediate risk Exclusion Criteria: * Neurological disease * Psychiatric disease * Use of psychoactive drugs or opioids * Altered basal state of consciousness * Allergy to propofol * Body mass index \> 35 kg/m2 * Pre-existing renal, cardiac and/or hepatic dysfunction * Patient's refusal to participate
Get updates
Get notified about this study
Sign up to get updates when this study changes or when new studies for Anesthesia, intravenous are added.
Genom att skicka in godkänner du våra Användarvillkor
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
-
The places running it
2 sites. The list below names each one and where it is.
-
The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
-
A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
-
Centro de Investigación Cínica Avanzada (CICA), Hospital Clinico de la Universidad de Chile
RECRUITINGSantiago, RM, 7690306, Chile
-
Hospital Clinico de la Universidad de Chile
RECRUITINGSantiago, RM, 7690306, Chile
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Can a gentle electric current calm the mind in Alzheimer's?
- Ear stimulation may quiet pain — scientists scan the brain to find out how
- Cannabis compounds may rewire memory retrieval, brain scans suggest
- Vibrating muscles while exercising could rewire the brain to ease chronic shoulder pain
- Cannabis study probes memory and brain activity in regular users
- Brain bursts at anesthesia start may predict deeper sleep during surgery