Geneva, Feb. 2 -- International Clinical Trials Registry received information related to the study (ChiCTR2600117288) titled 'Effectiveness and Safety of Oliceridine Fumarate for Postoperative Pain Management in Open Abdominal Surgery: A Randomized Controlled Trial' on Jan. 22.

Study Type: Interventional study

Study Design: Parallel

Primary Sponsor: The Affiliated Hospital of Qingdao University

Condition: Postoperative pain

Intervention: Experimental Group (Oliceridine Fumarate):In the experimental group, blinded investigators will administer a loading dose of oliceridine fumarate (5 mL, 0.20 mg/mL) prior to abdominal closure (before peritoneal suturing). Upon arrival at the Post-Anesthesia Care Unit (PACU), the patient-controlled...