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Video-assisted Thoracoscopic Surgery (VATS)NCT07591220

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

A study testing Loxoprofen Sodium Patch on the incision site and Loxoprofen Sodium Patch on the contralateral side in people with Video-assisted Thoracoscopic Surgery (VATS) and Loxoprofen Sodium Patch, run by Beijing Tiantan Hospital.

Not yet recruiting

Opening soon. The study is approved but enrolment has not started yet. Sites may already take enquiries.

Sites and contacts
Official record
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Trial summary

Video-assisted thoracoscopic surgery (VATS) is less invasive compared to traditional thoracotomy, but it is still reported that the incidence of acute pain following VATS exceeds 80%. Read more about this study

Who is it for?
Ages 18 to 64 years
What is being tested?
Loxoprofen Sodium Patch on the incision site and Loxoprofen Sodium Patch on the contralateral side
Could I receive a placebo?
No, everyone receives an active treatment
How many people
156 participants
Where
No sites listed yet
Study dates
1 Jun 2026to 30 Apr 2028
Phase
Interventional
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 64 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

  • Patients scheduled for elective Video-assisted thoracoscopic surgery for wedge resection, segmentectomy and lobectomy of the lungs under general anesthesia;
  • 8 to 64 years old;
  • American Society of Anesthesiologists (ASA) physical status of I-III;
  • Patients must be able to understand the nature and potential personal consequences of the clinical trial and cooperate with follow-up investigations
  • signing of the informed consent form.

Who cannot join

  • History of chronic pain syndrome of any cause and mental illness;
  • 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;
  • History of hypertension (Grade 3, extremely high risk);
  • Pregnancy or breastfeeding;
  • Extreme body mass index (BMI) (< 15 or > 35);
  • Participation in another interventional trial that interferes with the intervention or outcome of this trial;
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  • Digestive system diseases (such as peptic ulcers, gastric bleeding);
  • Patients with coronary artery disease;
  • 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);
  • 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;
  • Patients with a history of allergy to anyone of the study drugs;

Trial locations and contacts

No sites are listed yet. Contact the study team or a site near you to ask about taking part.

About this study

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

Video-assisted thoracoscopic surgery (VATS) is less invasive compared to traditional thoracotomy, but it is still reported that the incidence of acute pain following VATS exceeds 80%. Inadequate postoperative analgesia may trigger a series of adverse physiological stress responses, increase the occurrence of postoperative complications, and affect the rehabilitation process. If acute pain is not managed promptly and sufficiently, nearly one-quarter of patients may develop chronic pain, impacting normal life and sleep quality after discharge. Acute pain after VATS is mainly caused by the release of inflammatory mediators after soft tissue injury at the surgical site, which activates peripheral pain receptors and leads to abnormal action potentials transmitted along A δ and C fibers. Inflammatory mediators released from the soft tissues around 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. Therefore, drugs with potent local anti-inflammatory properties such as Loxoprofen Sodium may play a key role in preventing or reducing postoperative pain. The investigators conducted a multicenter, prospective, randomized controlled clinical study to explore the use of Loxoprofen Sodium Patch for preoperative local incision analgesia in VATS 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 VATS patients, promoting rapid recovery after VATS.

Being tested
Loxoprofen Sodium Patch on the incision site, Loxoprofen Sodium Patch on the contralateral side
Medical subject headings
Pain, Postoperative

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Loxoprofen Sodium Patch on the incision siteDrug

    Apply Loxoprofen Sodium Patch on the incision site of patients undergoing Video-assisted thoracoscopic surgery 12 hours before surgery

  • Loxoprofen Sodium Patch on the contralateral sideDrug

    Apply Loxoprofen Sodium Patch on the contralateral side of patients undergoing Video-assisted thoracoscopic surgery 12 hours before surgery

Study groups in NCT07591220
Study groupRoleWhat they receive
Loxoprofen Sodium Patch on the contralateral sideActive comparatorWe apply Loxoprofen Sodium Patch on the contralateral side of the incision in patients undergoing Video-assisted thoracoscopic surgery 12 hours before surgery.
Receives: Drug: Loxoprofen Sodium Patch on the contralateral side
Loxoprofen Sodium Patch on the incision siteExperimentalApply Loxoprofen Sodium Patch to the incision site of patients undergoing Video-assisted thoracoscopic surgery 12 hours before surgery
Receives: Drug: Loxoprofen Sodium Patch on the incision site

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Intravenous Morphine Equivalents of Rescue Analgesic Medications Within 48 Hours Postoperatively

    Measured: The postoperative period 48 hours

Secondary outcomes (8)
  1. Area Under the Curve (AUC) of Numeric Rating Scale at rest (NRSr) Within 0-72 Hours Postoperatively

    scores of 1-3 indicate mild pain, 4-6 denote moderate pain, and 7-10 signify severe pain

    Measured: Data will be collected at 4、12、24、36 and 72 hours postoperatively

  2. Area under the curve (AUC) of the Numerical Rating Scale during movement (NRSm) within 0-72 hours postoperatively

    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.

    Measured: Data will be collected at 4、12、24、36 and 72 hours postoperatively

  3. Numeric Rating Scale at rest (NRSr) at 1 week, 1 month, and 3 months postoperatively

    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.

    Measured: Postoperative 7 day, 1 month and 3 month.

  4. Patient Satisfaction Scale(PSS)

    Patient Satisfaction Scale(PSS) on a scale ranging from 0 to 10, where 0 denotes "completely dissatisfied" and 10 signifies "extremely satisfied.

    Measured: Postoperative hours 4、12、24 and 48 hours

  5. Postoperative nausea and vomiting(PONV)

    Measured: Postoperatively within 48 hours

  6. wound healing score

    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.

    Measured: Postoperative 72 hours、1 and 3 months.

  7. postoperatively and patient and observer scar assessment scale

    Postoperatively 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.

    Measured: Postoperative 72 hours、1 and 3 months

  8. Adverse events

    Such as itching, erythema, contact dermatitis, discomfort in the stomach, elevated ALT (GPT) and elevated AST (GOT)

    Measured: Within 72 hours postoperatively

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted15 May 2026
  2. Study start1 Jun 2026 (estimated)
  3. Primary completion31 Dec 2027 (estimated)
  4. Study completion30 Apr 2028 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
156 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07591220
Sponsor's protocol ID
KY2025-338-02-2
Status last verified
Jun 2026
First submitted
9 May 2026
Last updated
10 Jun 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes

Questions about this trial

What is this clinical trial studying?

A study testing Loxoprofen Sodium Patch on the incision site and Loxoprofen Sodium Patch on the contralateral side in people with Video-assisted Thoracoscopic Surgery (VATS) and Loxoprofen Sodium Patch, run by Beijing Tiantan Hospital.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 11 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: opening soon, as of the sponsor's last update on 10 Jun 2026. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Fang Luo (+86 13611326978, 13611326978@163.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Intravenous Morphine Equivalents of Rescue Analgesic Medications Within 48 Hours Postoperatively (time frame: The postoperative period 48 hours). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 10 Jun 2026; AzTrials last refreshed its copy on 8 Nov 2026.

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