CI

At a glance

ClinicalIndex Comparison Record
Phase 4Completed· 340 enrolled
Drug / intervention
Dexmedetomidine +2 moredrug
Likely dose
Dexmedetomidine 0.5 µgfrom record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT06566469
NCT06566469Phase 4Completed

Effect of Dexmedetomidine-esketamine Combined Nasal Administration on Emergence Delirium in Elderly Patients After Surgery: a Randomized, Double-blind, Placebo-controlled Trial

Peking University First Hospital·interventional·Posted Aug 22, 2024·Updated Jul 31, 2025

In Brief

A Phase 4 clinical trial evaluating Dexmedetomidine, Esketamine, and 1 other intervention for Older Patients and 5 related conditions. Completed, enrolled 340 participants across 1 site.

Detailed Summary

Emergence delirium is common in older patients after surgery and associated with worse perioperative outcomes, including increased postoperative delirium. Nasal administrations of both dexmedetomidine and esketamine are approved for medical purposes. Combination of low-dose dexmedetomidine and esketamine has shown some synergic effects in analgesia and anxiolysis. In a recent randomized trial, combined nasal administration of dexmedetomidine and esketamine was more effective in reducing pre-dental anxiety in pediatric patients. The investigators hypothesize that perioperative nasal administration of dexmedetomidine-esketamine combination can reduce the incidence of emergence delirium in older patients after surgery.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesChina
Collaborators--

Timeline

Phase 4CompletedFinished
20252026
First PostedAug 22, 2024
Enrollment StartSep 2, 2024
Primary CompletionMar 28, 2025
Study CompletionMay 1, 2025
TodayJul 1, 2026
Enrollment to primary: 7 monthsPosted 1.9 years ago

Interventions

Dexmedetomidinedrug

Dexmedetomidine 0.5 µg/kg is administered via nasal spray at 20:30 pm the day before surgery and at 07:30 am and 20:30 pm the day of surgery.

Esketaminedrug

Esketamine 0.2 mg/kg is administered via nasal spray at 20:30 pm the day before surgery and at 07:30 am and 20:30 pm the day of surgery.

Normal salinedrug

Normal saline at the same volume is administered via nasal spray at 20:30 pm the day before surgery and at 07:30 am and 20:30 pm the day of surgery.