NCT06417125

Brief Summary

The goal of this clinical trial is to learn the effect of dexmedetomidine premedication in postoperative negative behavior changes in children compared to midazolam premedication. It will also learn about the effect of dexmedetomidine and midazolam in emergence delirium. The main questions are:

  • Dose dexmedetomidine lower the incidence of postoperative negative behavior changes compared to midazolam?
  • Dose dexmedetomidine lower the incidence of emergence delirium compared to midazolam? Researchers will compare dexmedetomidine to midazolam (a common pediatric premedication) to see if dexmedetomidine works to treat postoperative negative behavior change and emergence delirium. Participants will:
  • Take intranasal dexmedetomidine or oral midazolam or placebo (a look-alike substance that contains no drug) premedication
  • Fill in the Post hospitalization behavior questionnaire for ambulatory surgery postoperative 1, 3, 7, and 30

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
324

participants targeted

Target at P75+ for phase_4

Timeline
Completed

Started May 2024

Geographic Reach
1 country

1 active site

Status
completed

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

May 9, 2024

Completed
7 days until next milestone

First Posted

Study publicly available on registry

May 16, 2024

Completed
6 days until next milestone

Study Start

First participant enrolled

May 22, 2024

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 22, 2025

Completed
29 days until next milestone

Study Completion

Last participant's last visit for all outcomes

October 21, 2025

Completed
Last Updated

December 22, 2025

Status Verified

December 1, 2025

Enrollment Period

1.3 years

First QC Date

May 9, 2024

Last Update Submit

December 16, 2025

Conditions

Keywords

dexmedetomidinemidazolampostoperative negative behavior changeemergence deliriumtonsillectomy

Outcome Measures

Primary Outcomes (1)

  • Incidence of postoperative negative behavior changes

    Postoperative negative behavior changes will be assessed using the Post Hospitalization Behavior Questionnaire for Ambulatory Surgery (PHBQ-AS).

    Day 7 postoperatively

Secondary Outcomes (11)

  • Incidence of postoperative negative behavior changes

    Day 1 postoperatively

  • Incidence of postoperative negative behavior changes

    Day 3 postoperatively

  • Incidence of postoperative negative behavior changes

    Day 30 postoperatively

  • Incidence of emergence delirium

    Within 30 min after extubation

  • Preoperative anxiety

    Before the intervention in holding area

  • +6 more secondary outcomes

Study Arms (3)

Dexmedetomidine group

EXPERIMENTAL

Participants were premedicated with intranasal dexmedetomidine 2 μg/kg and oral sweet solution 0.25 mL/kg.

Drug: Dexmedetomidine HydrochlorideDrug: Glucose solution

Midazolam group

ACTIVE COMPARATOR

Participants were premedicated with intranasal 0.9% saline 0.02 mL/kg and oral midazolam 0.5 mg/kg.

Drug: MidazolamDrug: normal Saline

Placebo group

PLACEBO COMPARATOR

Participants were premedicated with intranasal 0.9% saline 0.02 mL/kg and oral sweet solution 0.25 mL/kg.

Drug: normal SalineDrug: Glucose solution

Interventions

Patients were premedicated with oral sweet solution 0.25 mL/kg in the holding area.

Dexmedetomidine groupPlacebo group

Patients were premedicated with intranasal dexmedetomidine 2 μg/kg in the holding area.

Also known as: Dexmedetomidine hydrochloride Injection
Dexmedetomidine group

Patients were premedicated with oral midazolam 0.5 mg/kg in the holding area.

Also known as: Midazolam oral solution
Midazolam group

Patients were premedicated with normal saline 0.02 mL/kg in the holding area.

Midazolam groupPlacebo group

Eligibility Criteria

Age2 Years - 5 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17)

You may qualify if:

  • ASA physical status I or II;
  • Aged 2-5 years;
  • Scheduled for elective tonsillectomy and (or) adenoidectomy.

You may not qualify if:

  • Parents refusing to allow their children to participate;
  • Intake of sedative or analgesic medication within 48 hours before surgery;
  • Developmental delay;
  • Psychosis;
  • Body mass index \> 30 kg/m2;
  • Allergy to study drugs;
  • Major life changes 1 month before the operation, such as the divorce of parents, death of parents, moving to a new home, changing to a new kindergarten, etc.;

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Fujian Provincial Hospital

Fuzhou, Fujian, 350001, China

Location

MeSH Terms

Conditions

Mental DisordersEmergence Delirium

Interventions

DexmedetomidineMidazolamSaline Solution

Condition Hierarchy (Ancestors)

DeliriumConfusionNeurobehavioral ManifestationsNeurologic ManifestationsNervous System DiseasesPostoperative ComplicationsPathologic ProcessesPathological Conditions, Signs and SymptomsSigns and SymptomsNeurocognitive Disorders

Intervention Hierarchy (Ancestors)

ImidazolesAzolesHeterocyclic Compounds, 1-RingHeterocyclic CompoundsBenzodiazepinesBenzazepinesHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-RingCrystalloid SolutionsIsotonic SolutionsSolutionsPharmaceutical Preparations

Study Officials

  • Xiaochun Zheng, MD

    Fujian Provincial Hospital

    STUDY CHAIR

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Clinical Professor

Study Record Dates

First Submitted

May 9, 2024

First Posted

May 16, 2024

Study Start

May 22, 2024

Primary Completion

September 22, 2025

Study Completion

October 21, 2025

Last Updated

December 22, 2025

Record last verified: 2025-12

Data Sharing

IPD Sharing
Will share

After publication, the individual deidentified participant data underlying published results, the study protocol, and the statistical analysis plan can be accessed upon reasonable request from the corresponding author.

Shared Documents
STUDY PROTOCOL, SAP, ICF, CSR
Time Frame
We would like to share our individual deidentified participant data beginning three months following the publication of the main results.
Access Criteria
All the individual participant data collected during the trial, the study protocol, the statistical analysis plan, and the clinical study report can be accessed with approval from the corresponding author.

Locations