Patch before surgery may cut Post-Op painkiller use
NCT ID NCT07591207
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether placing a loxoprofen sodium patch on the skin where surgical cuts will be made can reduce pain after laparoscopic surgery. About 134 adults having gallbladder, appendix, or hernia surgery will take part. The goal is to see if this simple step lowers the need for strong painkillers and improves recovery.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 134 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jun 2026
- Expected to finish
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May 2028
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 64 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. Patients scheduled for elective Laparoscopic Surgery for laparoscopic cholecystectomy, appendectomy, or hernia repair under general anesthesia; 2. Ages 18 to 64 years old 3. American Society of Anesthesiologists (ASA) physical status of I-III 4. Patients must be able to understand the nature and potential personal consequences of the clinical trial and cooperate with follow-up investigations 5. signing of the informed consent form. Exclusion Criteria: 1. History of chronic pain syndrome of any cause and mental illness 2. Excessive alcohol or drug abuse, chronic opioid use (more than 2 weeks or 3 days per week for more than 1 month), use of drugs with confirmed or suspected sedative or analgesic effects, or use of any painkiller within 24 h before surgery. 3. History of hypertension (Grade 3, extremely high risk) 4. Pregnancy or breastfeeding. 5. Extreme body mass index (BMI) (\< 15 or \> 35). 6. Participation in another interventional trial that interferes with the intervention or outcome of this trial. 7. Digestive system diseases (such as peptic ulcers, gastric bleeding). 8. Patients with coronary artery disease. 9. Patients with renal impairment (serum creatinine \> 176 µmol/L) and abnormal liver function(alanine aminotransferase (ALT) and/or aspartate aminotransferase (AST) \> 2× the upper limit of normal (ULN) or total bilirubin (TBIL) ≥ 1.5×ULN). 10. Subjects with coagulation dysfunction (prothrombin time or activated partial thromboplastin time is higher than the normal threshold) or patients who are taking oral anticoagulants for other medical reasons and have not stopped it before surgery, such as warfarin or new anticoagulants rivaroxaban or dabigatran. 11. Patients with a history of allergy to anyone of the study drugs.
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As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
2 sites. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Beijing Tiantan Hospital
NOT_YET_RECRUITINGBeijing, Beijing Municipality, 100070, China
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Beijing Tiantan Hospital
RECRUITINGBeijing, Beijing Municipality, 100070, China
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