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

Sponsor
Peking University First Hospital
Study ID
NCT07610343
Phase
PHASE4
Status
Not Yet Recruiting

Notify me when recruiting opens

Save your spot on the interest list for this study. We'll keep your details with this study so our team can follow up when recruiting opens.

Not yet recruiting

Add your contact details and location so we can keep your interest tied to this study.

Conditions

  • Cognitive Impairment
  • Dexmedetomidine
  • Esketamine
  • Older Adults
  • Sleep Disorders

Eligibility Criteria

Sex
ALL
Age
60 Years - N/A
Healthy Volunteers
Not accepted

Interventions

  • Dexmedetomidine-esketamine combination — DRUG
    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).
  • Placebo — DRUG
    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).

Study Details

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.

Key Dates

First listed
May 27, 2026
Start date
Jun 30, 2026
Status verified
May 2026
Primary completion
Nov 30, 2027
Completion
Dec 31, 2027

Study Design

Enrollment
60 participants (estimated)
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT

Arms

  • Experimental: Intervention group
    Participants in this arm will receive intranasal administration of 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).
  • Placebo Comparator: Placebo group
    Participants in this arm will receive intranasal administration of placebo (normal sline). 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).

Primary Outcome Measure

Change in Pittsburgh Sleep Quality Index (PSQI) score from baseline to 1 month [ Time Frame: Up to day 29 post-intervention initiation ]

Central Contacts

Related Studies