Geneva, March 20 -- International Clinical Trials Registry received information related to the study (ChiCTR2600119596) titled 'Determining the ED50 of Oliceridine Combined with various doses of Cyclopropofol Sedation in Elderly Patients Undergoing Gastrointestinal Endoscopy' on Feb. 28.

Study Type: Interventional study

Study Design: Single arm

Primary Sponsor: The First Affiliated Hospital of Nanjing Medical University

Condition: Painless gastrointestinal endoscopy

Intervention: 0.4mg group:Intravenous anesthesia with oliceridine combined with cyclopropofol. The dose of cyclopropofol is fixed at 0.4 mg/kg, and the initial dose of oliceridine is 0.02 mg/kg. Subsequently, the dose of oliceridine administered to each subsequent sub...