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Intranasal Dexmedetomidine-esketamine on Sleep and Cognition in Older Adults With Mild-to-moderate Cognitive Impairment

NCT07610343 · Status: NOT_YET_RECRUITING · Phase: PHASE4 · Type: INTERVENTIONAL · Enrollment: 60

Last updated 2026-06-01

No results posted yet for this study

Summary

Patients with cognitive decline are frequently comorbid with sleep disorders which may in turn aggravate cognitive decline. Sedative dose dexmedetomidine improved sleep quality but incresed bradycardia and hypotension; low dose dexmedetomidine produce less side effects, but the sleep promoting effects are relatively weak. Low dose esketamine also has sleep-promoting effects but may produce neuropsychiatric side effects. Both dexmedetomidine and esketamine are approved for intranasal administration. We suppose that intranasal administration of dexmedetomidine-esketamine combination may improve sleep quality and therefore cognitive function in older ptients with Alzheimer's disease cognitive impairment and sleep disorders.

Conditions

Interventions

DRUG

Dexmedetomidine-esketamine combination

The dosage will be calculated based on body weight (approximately 0.4 μg/kg of dexmedetomidine and 0.2 mg/kg of esketamine). The mixture of study drugs will be administered via a nasal spray device, alternating between the two nostrils every 5 minutes, until the target dose is reached. The combination will be administered twice a week for 4 consecutive weeks (8 sessions in total).

DRUG

Placebo

The dosage (volume) will be calculated based on body weight in the same way as that in the intervention group. The placebo (normal saline) will be administered via a nasal spray device, alternating between the two nostrils every 5 minutes, until the target dose is reached. The placebo will be administered twice a week for 4 consecutive weeks (8 sessions in total).

Sponsors & Collaborators

  • Peking University First Hospital

    lead OTHER

Principal Investigators

  • Dong-Xin Wang, MD, PhD · Peking University First Hospital

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Model
PARALLEL

Eligibility

Min Age
60 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-06-30
Primary Completion
2027-11-30
Completion
2027-12-31

Countries

  • China

Study Locations

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Entities

Drugs
Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07610343 on ClinicalTrials.gov