Remimazolam Consumption: TCI vs. Manual Infusion
Comparison of Remimazolam Consumption According to Administration Method in Patients Undergoing Cerebrovascular Bypass Surgery: A Prospective Randomized Trial
1 other identifier
interventional
58
1 country
1
Brief Summary
The purpose of this prospective randomized controlled trial is to compare the total consumption of remimazolam between two different administration methods-Target-Controlled Infusion (TCI) and manual infusion-in patients undergoing cerebrovascular bypass surgery.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable
Started Feb 2026
Longer than P75 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
January 22, 2026
CompletedFirst Posted
Study publicly available on registry
January 30, 2026
CompletedStudy Start
First participant enrolled
February 4, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 31, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
December 31, 2030
April 23, 2026
April 1, 2026
11 months
January 22, 2026
April 22, 2026
Conditions
Outcome Measures
Primary Outcomes (1)
Total Consumption of Remimazolam
The total cumulative dose of remimazolam ($mg$) administered from the initiation of anesthesia induction until the completion of the surgical procedure.
From the start of anesthesia induction to the end of surgery (intraoperative period).
Study Arms (2)
TCI
EXPERIMENTALRemimazolam administered via TCI (target Ce 0.7 μg/mL)
Manual Infusion
ACTIVE COMPARATORRemimazolam administered via manual infusion (6 mg/kg/hr for induction, 1-2 mg/kg/hr for maintenance)
Interventions
Remimazolam is administered using a target-controlled infusion (TCI) pump based on the Schuttler pharmacokinetic model. The initial target effect-site concentration (Ce) is set at 0.7 μg/mL and adjusted in 0.1 μg/mL increments to maintain a depth of anesthesia between Patient State Index (PSi) 25 and 50.
Remimazolam is administered via traditional manual weight-based infusion. For anesthesia induction, a rate of 6 mg/kg/hr is used. For maintenance, the infusion rate starts at 1 mg/kg/hr and is adjusted in 0.2 mg/kg/hr increments to maintain a PSi between 25 and 50.
Eligibility Criteria
You may qualify if:
- Patients scheduled to undergo cerebrovascular bypass surgery under general anesthesia.
- American Society of Anesthesiologists (ASA) Physical Status 1, 2, or 3
- Adults aged 19 years or older
- Patients who have provided prior written informed consent to participate in the study
You may not qualify if:
- Patients who do not consent to participate in the research
- Patients classified as ASA Physical Status 4
- Patients with a BMI ≤18.5 kg/m2 or 35.0 ≥ kg/m2
- History of allergy to benzodiazepine-class medications
- Patients with acute narrow-angle glaucoma
- Patients in a state of shock or coma
- Acute alcohol intoxication with suppressed vital signs , or patients with alcohol or drug dependency
- Presence of Sleep Apnea Syndrome or severe/acute respiratory failure
- Patients with lactose intolerance or hypersensitivity to Dextran 40
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Seoul National University Bundang Hospital
Seongnam-si, Gyeonggi-do, 13620, South Korea
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- TRIPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR
- Purpose
- HEALTH SERVICES RESEARCH
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Associate professor
Study Record Dates
First Submitted
January 22, 2026
First Posted
January 30, 2026
Study Start
February 4, 2026
Primary Completion (Estimated)
December 31, 2026
Study Completion (Estimated)
December 31, 2030
Last Updated
April 23, 2026
Record last verified: 2026-04
Data Sharing
- IPD Sharing
- Will not share