| NCT Number | NCT03012971 |
| Lead Sponsor | Peking University First Hospital
Collaborators: Affiliated Hospital of Hebei University, Qingdao Municipal Hospital, The Second Affiliated Hospital of Air Force Military Medical University, Peking University International Hospital, Guizhou Provincial People's Hospital, The Third Xiangya Hospital of Central South University, Shanxi Province Cancer Hospital, Tianjin Nankai Hospital, Fuling Central Hospital of Chongqing City, Tianjin Third Central Hospital, Xiyuan Hospital of China Academy of Chinese Medical Sciences |
| Conditions | Elderly, Surgery, Analgesia, Dexmedetomidine, Long-term Outcome |
| Enrollment | 1,500 participants |
| Start Date | 2017-01-06 |
| Primary Completion | 2026-12-11 (estimated) |
| Study Completion | 2026-12-11 (estimated) |
| Updated on ClinicalTrials.gov | 2026-07-28 |