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The Efficacy and Safety of Loxoprofen Sodium Patch in Relieving Postoperative Pain After Laparoscopic Surgery

The Efficacy and Safety of Incisional Preemptive Analgesia Using Loxoprofen Sodium Patch in Patients Undergoing Laparoscopic Surgery: a Multi-center Randomized Controlled Trial.

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07591207
Enrollment
134
Registered
2026-05-15
Start date
2026-06-01
Completion date
2028-05-31
Last updated
2026-06-16

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Appendectomy, Laparoscopic, Hernia Repair, Laparoscopic Cholecystectomy, Local Incision, Loxoprofen Sodium Patch

Brief summary

Studies have shown that up to 80% of patients experience postoperative pain following laparoscopic surgery due to inflammation caused by surgical incisions and surrounding tissues, necessitating pharmacological relief. Inflammatory mediators released from the soft tissues around laparoscopic incisions not only significantly alters the chemical microenvironment at the peripheral terminals of nociceptors, directly inducing pain, but also sensitizes afferent fibers, contributing to peripheral sensitization. The investigators conducted a multicenter, prospective, randomized controlled clinical study to explore the use of Loxoprofen Sodium Patch for preoperative local incision analgesia in laparoscopic surgery patients. The investigators aim to observe whether this method can effectively alleviate postoperative incision pain, reduce the dosage of postoperative analgesics and the side effects caused using postoperative analgesics, improve patient satisfaction, and provide new ideas for postoperative analgesia in laparoscopic surgery patients, promoting rapid recovery after laparoscopic surgery.

Interventions

Apply Loxoprofen Sodium Patch on the contralateral side of the incision in patients undergoing laparoscopic surgery 12 hours before surgery.

Apply Loxoprofen Sodium Patch on the incision site of patients undergoing laparoscopic surgery 12 hours before surgery

Sponsors

Beijing Tiantan Hospital
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 64 Years
Healthy volunteers
No

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.

Design outcomes

Primary

MeasureTime frame
Intravenous Morphine Equivalents of Rescue Analgesic Medications Within 48 Hours PostoperativelyThe postoperative period 48 hours

Secondary

MeasureTime frameDescription
Area Under the Curve (AUC) of Numeric Rating Scale at rest (NRSr) Within 0-72 Hours PostoperativelyData will be collected at 4、12、24、36 and 72 hours postoperativelyscores of 1-3 indicate mild pain, 4-6 denote moderate pain, and 7-10 signify severe pain
Area under the curve (AUC) of the Numerical Rating Scale during movement (NRSm) within 0-72 hours postoperativelyData will be collected at 4、12、24、36 and 72 hours postoperativelyThe Numeric Rating Scale (NRS) designates 0 as representing no pain and 10 as representing the most severe pain, scores of 1-3 indicate mild pain, 4-6 denote moderate pain, and 7-10 signify severe pain.
Numeric Rating Scale at rest (NRSr) at 1 week, 1 month, and 3 months postoperativelyPostoperative day 7, month 1, and month 3.The Numeric Rating Scale (NRS) designates 0 as representing no pain and 10 as representing the most severe pain; scores of 1-3 indicate mild pain, 4-6 denote moderate pain, and 7-10 signify severe pain.
Patient Satisfaction Scale(PSS)Postoperative hours 4、12、24 and 48 hoursPatient Satisfaction Scale(PSS) on a scale ranging from 0 to 10, where 0 denotes "completely dissatisfied" and 10 signifies "extremely satisfied."
Postoperative nausea and vomiting(PONV)Postoperatively within 48 hours
wound healing scorePostoperative 72hours、1 and 3 months.The wound healing score is evaluated by independent researchers based on the wound healing score table, which includes three aspects: skin healing, incision infection, and hair growth. The total score is obtained by adding up the three scores. Excellent wound healing: 3 points; Good wound healing is 4-5; Poor wound healing: total score greater than or equal to 6 points.
postoperatively and patient and observer scar assessment scalePostoperative 72 hours、1 and 3 monthsPostoperatively and patient and observer scar assessment scale: the observer scores the scar based on the distribution of blood vessels around the incision, color, scar thickness, surface roughness, area, and softness. Each score ranges from 1 to 10 points and higher scores indicating more severe scars; The patient evaluates the scar based on whether there is pain or itching, color, softness, thickness, and self-perception. Each score range is also 1-10 points, with 1 point indicating no difference from normal skin and a higher score indicating more severe scars.
Adverse eventsWithin 72 hours postoperativelySuch as itching, erythema, contact dermatitis, discomfort in the stomach, elevated ALT (GPT) and elevated AST (GOT)

Countries

China

Contacts

CONTACTFang Luo
13611326978@163.com+86 13611326978

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 17, 2026