The Effect of Remifentanil on ED95 of Remimazolam for Loss of Consciousness in Adult Patients

NCT ID: NCT05434494

Last Updated: 2022-06-28

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

80 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-07-01

Study Completion Date

2023-08-31

Brief Summary

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This study prospectively uses the biased coin technique to investigate the effect of concomitant administration of remifentanil on the 95% effective dose of intravenous remimazolam (Effective dose 95 \[ED95\]) required for loss of consciousness during anesthesia induction. .

Detailed Description

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Conditions

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Remimazolam

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

OTHER

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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remifentanil group

Start the continuous infusion of 25cc of remifantanil (labeled as a test drug) by TCI mode ( the target effect site concentration is 2.0).

While slowly injecting the prescribed dose of remimazolam over 30 seconds, observe whether it responds to the investigator's oral commands and the disappearance of the eyelash reflex for 3 minutes after administering the drug. Success in inducing loss of consciousness during anesthesia is defined as the loss of both verbal command response and eyelash reflex within 3 minutes after infusion, otherwise it is considered a failure.

The dose of remimazolam is initially 0.15 mg/kg and the next experimental dose is determined according to the biased coin design up-and-down sequential method. The standard deviation of this study is 0.05 mg.

Group Type ACTIVE_COMPARATOR

Remimazolam

Intervention Type DRUG

Remimazolam is injected for 30 seconds and the experimental dose will be determined according to the biased coin design up-and-down sequential method.

If loss of consciousness is successful, the dose of the next intravenous dose of the next study subject will be reduced from the previous dose with a probability of 1/19 or the same as the previous dose with a probability of 18/19.

remifantanil

Intervention Type DRUG

25cc infusion drug will be prepared (labeled as test drug) and infused with TCI mode. The target effect site concentration is 2.0 ng/ml.

control group

Start the continuous infusion of 25cc of normal saline (labeled as a test drug).

While slowly injecting the prescribed dose of remimazolam over 30 seconds, observe whether it responds to the investigator's oral commands and the disappearance of the eyelash reflex for 3 minutes after administering the drug. Success in inducing loss of consciousness during anesthesia is defined as the loss of both verbal command response and eyelash reflex within 3 minutes after infusion, otherwise it is considered a failure.

The dose of remimazolam is initially 0.15 mg/kg and the next experimental dose is determined according to the biased coin design up-and-down sequential method. The standard deviation of this study is 0.05 mg.

Group Type PLACEBO_COMPARATOR

Remimazolam

Intervention Type DRUG

Remimazolam is injected for 30 seconds and the experimental dose will be determined according to the biased coin design up-and-down sequential method.

If loss of consciousness is successful, the dose of the next intravenous dose of the next study subject will be reduced from the previous dose with a probability of 1/19 or the same as the previous dose with a probability of 18/19.

Interventions

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Remimazolam

Remimazolam is injected for 30 seconds and the experimental dose will be determined according to the biased coin design up-and-down sequential method.

If loss of consciousness is successful, the dose of the next intravenous dose of the next study subject will be reduced from the previous dose with a probability of 1/19 or the same as the previous dose with a probability of 18/19.

Intervention Type DRUG

remifantanil

25cc infusion drug will be prepared (labeled as test drug) and infused with TCI mode. The target effect site concentration is 2.0 ng/ml.

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* The adult patients who are scheduled to surgery under general anesthesia

Exclusion Criteria

* Severe obesity (BMI \> 30 kg/m2)
* Allergy to remimazolam or remifentanil
* Under conditions which make it difficult to respond to the investigator's verbal commends like hearing impairment, etc.
* Patients with general conditions are more than ASA class III
* Patients with brain disease (dementia, cerebral infarction, etc.)
Minimum Eligible Age

19 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Ajou University School of Medicine

OTHER

Sponsor Role lead

Responsible Party

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Jiyoung Yoo

associate professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Central Contacts

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ji young yoo

Role: CONTACT

01056902104

Other Identifiers

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AJIRB-MED-INT-22-008

Identifier Type: -

Identifier Source: org_study_id

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