Finding the right dose of remimazolam for sedation in young children

Effective Dose of Remimazolam for Loss of Consciousness in Children: A Prospective Dose Finding Study

Phase 2 Interventional Seoul National University Hospital · NCT05975255

This study is testing the right amount of a medication called remimazolam to safely help young children aged 2 to 8 fall asleep for medical procedures.

Quick facts

PhasePhase 2
Study typeInterventional
Enrollment50 (estimated)
Ages2 Years to 8 Years
SexAll
SponsorSeoul National University Hospital Academic / other
Locations1 site (Seoul)
Trial IDNCT05975255 on ClinicalTrials.gov

What this trial studies

This study aims to determine the effective dose of remimazolam for inducing loss of consciousness in children aged 2 to 8 years. Participants will receive intravenous remimazolam, which will be administered over 30 seconds, and the researchers will assess sedation after 2 minutes. The study employs an up-and-down method with a biased-coin design to adjust the dosage based on whether the previous participant was sedated. The goal is to establish the effective dose (ED90) for this age group.

Who should consider this trial

Good fit: Ideal candidates are children aged 2 to 8 years scheduled for general anesthesia or sedation with an American Society of Anesthesiologist Physical Status of 1 or 2.

Not a fit: Patients with respiratory issues, hypersensitivity to certain medications, or other specific health conditions may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide a safe and effective sedation protocol for young children undergoing procedures requiring anesthesia.

How similar studies have performed: Other studies have explored sedation in children, but this specific approach to determining the effective dose of remimazolam is novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Children scheduled to undergo general anesthesia or sedation
* American Society of Anesthesiologist Physical Status of 1 or 2

Exclusion Criteria:

* Presence of Upper respiratory tract infection or any pulmonary disease
* Presence of subglottic stenosis, laryngomalacia, or tracheomalacia
* History of hypersensitivity to benzodiazepines or propofol
* History of hypersensitivity to beans or peanut
* History of seizure
* Presence of arrhythmia, tachycardia, or bradycardia
* Presence of acute closed-angle glaucoma
* Patients with unstable vital sign
* Presence of sleep apnea
* Presence of galactose intolerance, Lapp lactase deficiency, or glucose-galactose absorption disorder
* History of hypersensitivity to dextran 40
* Refusal to enroll by one or more parents or legal guardian
* Other conditions the researchers regarded as inappropriate to enroll

Where this trial is running

Seoul

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Drug EffectRemimazolamChildrenDose
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.