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A Multicenter Randomized Controlled Trial: The Efficacy of Suvorexant in Prevention of Postoperative Delirium after Cardiac Surgery

A Multicenter Randomized Controlled Trial: The Efficacy of Suvorexant in Prevention of Postoperative Delirium after Cardiac Surgery - A Multicenter Randomized Controlled Trial: The Efficacy of Suvorexant in Prevention of Postoperative Delirium after Cardiac Surgery

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000027311
Enrollment
176
Registered
2017-05-15
Start date
2017-04-17
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

delirium

Interventions

suvorexant 15 mg/day during ICU stay (for a maximum of 7 days) placebo during ICU stay (for a maximum of 7 days)

Sponsors

Yokohama City University
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Patients meeting the following requirements ? undergoing elective cardiac surgery using cardiopulmonary bypass and without circulatory arrest or selective cerebral perfusion ? admitted to ICU after surgery ? at high risk for / with symptoms of insomnia ? first-person consent to participation

Exclusion criteria

Exclusion criteria: Patients meeting any of the following criteria ? taking suvorexant at the time of enrollment ? taking ramelteon at the time of enrollment ? history of hypersensitivity to suvorexant ? taking a drug that is incompatible with suvorexant ? intracranial organic lesion ? diagnosed as dementia or scored 21 or less on Mini-Mental State Examination ? depression ? taking anti-psychotic drugs ? alcohol abuse ? severe renal dysfunction that requires maintenance dialysis (preoperatively) ? severe hepatic dysfunction (Child-Pugh class B or C) ? restriction in the evaluation of delirium using CAM-ICU in terms of impairment in communication (in Japanese) and/or physical disability

Design outcomes

Primary

MeasureTime frame
incidence of delirium determined by CAM-ICU (for a maximum of 7 days) after cardiac surgery in ICU

Secondary

MeasureTime frame
1. Proportion of the number of times that a patient is deemed CAM-ICU positive to the total number of CAM-ICU assessment during ICU stay 2. Length of mechanical ventilation 3. Length of ICU stay 4. Length of hospital stay 5. Development of hyperactive delirium requiring psychiatric consultation or antipsychotic medication

Countries

Japan

Contacts

Public ContactTakayuki Kariya

Yokohama City University Medical Center Intensive Care Department

tkariya@yokohama-cu.ac.jp+81-45-261-5656

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026