Geneva, Jan. 12 -- International Clinical Trials Registry received information related to the study (ChiCTR2500114668) titled 'The Effect of Oliceridine on Postoperative Cerebral Function in Patients Undergoing Gastrointestinal Tumor Resection for Postoperative Analgesia: A Single-Center, Randomized, Double-Blind, Controlled Study' on Dec. 16, 2025.

Study Type: Interventional study

Study Design: Parallel

Primary Sponsor: Affiliated Hospital of Jiangnan University

Condition: gastrointestinal tumor

Intervention: sufentanil group:postoperative intravenous analgesia with sufentanil

Recruitment Status: Not Recruiting

Phase: 0

Date of First Enrollment: 2026-01-01

Target Sample Size: sufentanil group:71;medium-dose oliceridine gro...