A Clinical Trial Evaluating the Efficacy, Safety, and Pharmacokinetic Profile of TRD303 for Posto… (NCT07353307) | Clinical Trial Compass
CompletedPhase 3
A Clinical Trial Evaluating the Efficacy, Safety, and Pharmacokinetic Profile of TRD303 for Postoperative Analgesia After Abdominal Surgery in China.
China333 participantsStarted 2025-12-30
Plain-language summary
A multicenter, randomized, double-blind, placebo-positive, parallel-controlled, phase Ⅲ clinical trial of the efficacy, safety and pharmacokinetics of TRD303 solution for postoperative analgesia in patients undergoing abdominal surgery was conducted. The primary objective was to evaluate the efficacy of TRD303 solution for postoperative analgesia after abdominal surgery. The secondary objective was to evaluate the safety and pharmacokinetic profile of TRD303 solution for postoperative analgesia after abdominal surgery.
Who can participate
Age range
18 Years – 80 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion criteria
. Fully understand the purpose and significance of this study, voluntarily participate in this study, voluntarily sign the informed consent, and voluntarily abide by the process of this study;
. 18 years old ≤ age ≤80 years old, regardless of gender; 18.0kg/m2≤BMI≤30.0kg/m2, ≥50.0kg for men and ≥45.0kg for women;
Exclusion criteria
. Those who are known to have allergies or contraindications to ropivacaine or other amide local anesthetics, inactive ingredients of the investigational drug, or other drugs that may be used during the trial, and who are judged by the investigator to be unsuitable for the trial;
. Use of the following drugs for less than 5 half-lives before randomization (according to the actual drug instructions, the half-life is unknown, or eluted according to 48 hours), including but not limited to: Class III antiarrhythmic drugs, glucocorticoids (systemic), anticonvulsants, sedative-hypnotic drugs, anxiolytic drugs, antidepressant drugs, CYP1A2 enzyme inhibitor, sedative drugs (except those used according to the protocol), analgesic drugs (except those used according to the protocol), the specific types refer to the list of prohibited drugs; Use of Chinese herbal medicine with definite analgesic effect assessed by investigators within 7 days before randomization;
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
Area under curve (AUC) of the pain intensity-time during 0-72h at rest
Timeframe: From administration until 72 hours after administration
Trial details
NCT IDNCT07353307
SponsorThe Third Xiangya Hospital of Central South University
. Participants who planned to use hyperthermic perfusion, intraperitoneal chemotherapy, physical therapy, or other concomitant therapies during the treatment period that the investigator judged might affect postoperative pain;
. patients who underwent abdominal surgery within 1 year before signing ICF;
. patients who planned to undergo surgery at other sites during the study period;
. Combined with other pain conditions that may confound the evaluation of postoperative pain according to the investigator;
. Participants with a history of congenital or idiopathic methemoglobinemia or glucose-6-phosphate dehydrogenase deficiency;
. Previous and/or family history of malignant hyperthermia;