| NCT Number | NCT06859892 |
| Lead Sponsor | Peking University First Hospital |
| Conditions | Adults, Major Noncardiac Surgery, Dexmedetomidine, Esketamine, Postoperative Sleep Disturbances |
| Enrollment | 476 participants |
| Start Date | 2025-03-18 |
| Primary Completion | 2026-11 (estimated) |
| Study Completion | 2026-12 (estimated) |
| Updated on ClinicalTrials.gov | 2025-03-19 |