Clinical trial Recruiting at 1 site Phase 4 Interventional Ages 18 and up

Combining dexmedetomidine and esketamine to improve sleep after major surgery

Official title: Effect of Dexmedetomidine-esketamine Combination on Sleep Disturbances After Major Noncardiac Surgery: a Single-center, Randomised, Double-blind, Placebo-controlled Trial

Run by Peking University First Hospital · NCT06859892 · Data updated 2026-11-12

This study is testing whether a mix of two medications, dexmedetomidine and esketamine, can help adults sleep better after major surgery compared to a placebo.

More Dexmedetomidine trials

Quick facts

PhasePhase 4
Study typeInterventional
Ages18 Years and up
SexAll
Enrollment476 (estimated)
SponsorPeking University First Hospital
Academic / other
Locations1 site (Beijing)
StatusRecruiting
StartedMarch 18, 2025
Main results expectedNovember 2026
Study endsDecember 2026
Registry record updatedMarch 19, 2025
Trial IDNCT06859892 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults aged 18 and older scheduled for major noncardiac surgery requiring general anesthesia and postoperative intravenous analgesia.

Probably not a fit

Patients undergoing emergency surgeries, those with specific psychiatric or neurological conditions, or those requiring preoperative hypnotics or antidepressants may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This trial investigates the effects of a dexmedetomidine-esketamine combination on postoperative sleep disturbances in adults undergoing major noncardiac surgery. The study aims to determine if this combination, used during general anesthesia and for postoperative pain management, can enhance sleep quality and reduce the incidence of sleep disturbances. Previous research indicated that this combination improved analgesia and subjective sleep quality in patients after scoliosis surgery, prompting further exploration in a broader surgical context. The trial will compare the effects of the combination against a placebo.

Why it matters

Potential benefit: If successful, this approach could significantly improve sleep quality and recovery outcomes for patients after major surgery.

How similar studies have gone: Previous studies have shown success with similar combinations in improving postoperative outcomes, indicating potential for this approach.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Aged ≥18 years.
2. Scheduled for major noncardiac surgery (≥60 minutes) under general anesthesia with an expected end of surgery no later than 18:00 pm.
3. Required patient-controlled intravenous analgesia after surgery.

Exclusion Criteria:

1. Emergency surgery, transurethral surgery, organ transplantation.
2. Pregnant or lactating women.
3. Patients who need hypnotics for sleep disturbance or antidepressants for depression prior to surgery.
4. History of schizophrenia, epilepsy, Parkinson's disease, or myasthenia gravis.
5. Inability to communicate due to coma, severe dementia, or speech disorders, endured hypoxic encephalopathy or traumatic brain injury, or after neurosurgery.
6. Comorbid with hyperthyroidism and pheochromocytoma.
7. Preoperative left ventricular ejection fraction \<30%, sick sinus syndrome, severe sinus bradycardia (heart rate \<50 beats/min), atrioventricular block of degree II or higher without pacemaker implantation, or systolic blood pressure below 90 mmHg despite use of vasopressors.
8. Diagnosed as sleep apnea, or judged to be at high risk of moderate-to-severe sleep apnea as assessed by STOP-Bang.
9. Severe hepatic dysfunction (Child-Pugh class C), severe renal dysfunction (on dialysis), or ASA classification ≥IV.
10. Hypersensitive to dexmedetomidine and/or esketamine.
11. Other conditions that are deemed unsuitable for study participation.

Where it's running

  • Peking University First Hospital
    Beijing, China
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 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.