This is a phase IIa, multicenter ,randomized, double-blind, Double-Dummy, Active- and placebo-controlled study designed to evaluate the efficacy, safety and kinetic characteristics of TRD205 tablets for postoperative analgesia after unilateral hip arthroplasty
This study used Active and placebo as a control to explore the efficacy, safety and pharmacokinetic characteristics of multiple administration of different doses of TRD205 tablets for postoperative analgesia after unilateral total hip replacement surgery
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
200
First dose 2-4 hours before anesthesia induction; subsequent doses q12h (±4 hours window if nighttime)
First dose 2-4 hours before anesthesia induction; subsequent doses q12h (±4 hours window if nighttime)
First dose 2-4 hours before anesthesia induction; subsequent doses q12h (±4 hours window if nighttime)
The Third Affiliated Hospital of Southern Medical University
Guangzhou, Guangdong, China
RECRUITINGArea under the pain intensity-time curve (AUC0-48h) of resting pain NRS from 0 to 48 hours after surgery
Time frame: 0 to 48 hours after surgery
AUC of resting pain NRS at 0-4, 0-6, 0-12, 0-24, 24-48 hours postoperatively
Time frame: 0-4, 0-6, 0-12, 0-24, 24-48 hours postoperatively
AUC of movement pain NRS at 0-4, 0-6, 0-12, 0-24, 24-48 hours postoperatively
Time frame: 0-4, 0-6, 0-12, 0-24, 24-48 hours postoperatively
Cumulative morphine-equivalent rescue analgesic dose at 0-4, 0-6, 0-12, 0-24, 0-48 hours
Time frame: 0-4, 0-6, 0-12, 0-24, 0-48 hours after surgery
Time to first rescue analgesia
Time frame: Within 48 hours after the surgery, the period from the end of the surgery to the first administration of analgesic medication for relief purposes
Number and proportion of participants using rescue analgesia
Time frame: 0-48 hours postoperatively
Participant and investigator satisfaction with analgesia with the 5-point scale,the score range from 0 to 4, where 0 indicates poor, 1 indicates average, 2 indicates good, 3 indicates very good, and 4 indicates excellent.
At 48 hours after the surgery, the participants and the research doctors respectively evaluated the overall pain relief satisfaction of the test drug used on a 5-point scale, with the score range from 0 to 4, where 0 indicates poor, 1 indicates average, 2 indicates good, 3 indicates very good, and 4 indicates excellent.
Time frame: 48 hours postoperatively
By evaluating security metrics such as AEs, SAEs and TEAEs to evaluate the safety of multiple administration of TRD205 tablets in patients with postoperative analgesia after unilateral hip arthroplasty.
xiaohong zhang Beijing Tide Pharmaceutical Co., Ltd
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First dose 2-4 hours before anesthesia induction; subsequent doses q12h (±4 hours window if nighttime)
First dose 2-4 hours before anesthesia induction; subsequent doses q12h (±4 hours window if nighttime)
Time frame: 5 days