U.S., Nov. 3 -- ClinicalTrials.gov registry received information related to the study (NCT07909902) titled 'A Clinical Trial of Local Infiltration With Injection CZ1S for Postoperative Analgesia After Hemorrhoidectomy' on Oct. 19.
Brief Summary: This is a multicenter, randomized, double-blind, active-controlled and placebo-controlled phase III clinical trial, aiming to evaluate the efficacy and safety of intravenous injection of CZ1S for local infiltration after hemorrhoidectomy in terms of pain relief.
Study Start Date: May 21, 2025
Study Type: INTERVENTIONAL
Condition:
Hemorrhoids Second Degree
Hemorrhoids Third Degree
Analgesia
Intervention:
DRUG: CZ1S for injection
intervention group
DRUG: ropivacaine
positive control
DRUG: N...