Analgesia With Transdermal Buprenorphine Patch in Adults Undergoing Video-Assisted Thoracoscopic Surgery
Analgesia With a 5 mcg/Hour Transdermal Buprenorphine Patch as Part of Multimodal Analgesia in Adults Undergoing Unilateral Video-Assisted Thoracoscopic Surgery: A Triple-Blind Randomized Controlled Trial
Studienübersicht
Status
Status
Bedingungen
Bedingungen
Intervention / Behandlung
Intervention / Behandlung
Detaillierte Beschreibung
Video-assisted thoracoscopic surgery (VATS) is associated with moderate to severe postoperative pain that may impair respiratory function, delay recovery, prolong hospitalization, and contribute to the development of persistent postoperative pain. Current guidelines recommend multimodal analgesia, including non-opioid analgesics and regional anesthesia techniques, while opioids are generally reserved for rescue analgesia.
Transdermal buprenorphine is a long-acting partial μ-opioid receptor agonist that has demonstrated efficacy in reducing postoperative pain and opioid consumption in several surgical settings. However, evidence regarding its use in thoracic surgery is currently lacking.
This is a single-center, randomized, triple-blind, placebo-controlled clinical trial conducted at Clínica Dávila, Santiago, Chile. Adult patients undergoing unilateral video-assisted thoracoscopic surgery will be randomized in a 1:1 ratio to receive either a 5 mcg/hour transdermal buprenorphine patch plus standard multimodal analgesia or placebo plus standard multimodal analgesia. Randomization will be computer-generated using sequentially numbered opaque sealed envelopes. Participants, investigators, outcome assessors, and the statistician will remain blinded to treatment allocation.
The primary outcome is postoperative pain intensity measured using the Numeric Rating Scale (0-10) at 24, 48, and 72 hours and 7 days after surgery. Secondary outcomes include opioid rescue consumption expressed as morphine equivalents, postoperative nausea and vomiting, pruritus, urinary retention, and length of hospital stay. The planned sample size is 90 participants (45 per group).
Studientyp
Studientyp
Einschreibung (Geschätzt)
Einschreibung
Phase
Phase
- Unzutreffend
Kontakte und Standorte
Studienorte
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Santiago Metropolitan
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Santiago, Santiago Metropolitan, Chile, 8431657
- Rekrutierung
- Clínica Dávila
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Kontakt:
- Alejandra Sofía Rivera, MsC Epidemiology
- Telefonnummer: 930363776
- E-Mail: alejandra.rivera@davila.cl
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Kontakt:
- Bernarda Miranda, Bibliotecary
- Telefonnummer: +56930363776
- E-Mail: bmiranda@davila.cl
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Teilnahmekriterien
Zulassungskriterien
Zulassungskriterien
Studienberechtigtes Alter
- Erwachsene
- Älterer Erwachsener
Akzeptiert gesunde Freiwillige
Beschreibung
Inclusion Criteria:
- Adults aged 18 years or older.
- Scheduled for elective unilateral video-assisted thoracoscopic surgery (VATS).
- American Society of Anesthesiologists (ASA) physical status I-III.
- Able to understand the study procedures and provide written informed consent.
Exclusion Criteria:
- Known allergy or hypersensitivity to buprenorphine or any component of the transdermal patch.
- Chronic opioid use before surgery.
- Severe hepatic impairment.
- Pregnancy or breastfeeding.
- Inability to complete postoperative pain assessments.
- Any condition that, in the investigator's opinion, could interfere with study participation or outcome assessment.
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
- Hauptzweck: Behandlung
- Zuteilung: Zufällig
- Interventionsmodell: Parallele Zuordnung
- Maskierung: Vervierfachen
Anzahl der Arme
Waffen und Interventionen
Teilnehmergruppe / ArmTeilnehmergruppe / Arm |
Intervention / BehandlungIntervention / Behandlung |
|---|---|
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Experimental: Buprenorphine Patch
Participants will receive a 5 mcg/hour transdermal buprenorphine patch before surgery in addition to standard multimodal analgesia.
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Transdermal buprenorphine patch (5 mcg/hour) administered preoperatively as part of multimodal analgesia.
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Placebo-Komparator: Placebo Patch
Participants will receive a placebo transdermal patch before surgery in addition to standard multimodal analgesia.
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Placebo transdermal patch identical in appearance to the active patch and administered preoperatively as part of multimodal analgesia.
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Was misst die Studie?
Primäre Ergebnismessungen
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
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Postoperative Pain Intensity Measured Using the Numeric Rating Scale
Zeitfenster: 24, 48, and 72 hours and 7 days after surgery
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Postoperative pain intensity will be assessed using the Numeric Rating Scale, ranging from 0 to 10, where 0 indicates no pain and 10 indicates the worst imaginable pain.
Pain scores will be compared between the buprenorphine and placebo groups across the postoperative assessment time points.
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24, 48, and 72 hours and 7 days after surgery
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Sekundäre Ergebnismessungen
Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
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Postoperative Rescue Opioid Consumption
Zeitfenster: From the end of surgery through 7 days after surgery
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Total rescue opioid consumption will be obtained from the clinical record and expressed in milligrams of intravenous morphine equivalents.
Opioid consumption will be compared between the study groups.
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From the end of surgery through 7 days after surgery
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Incidence of Postoperative Nausea and Vomiting
Zeitfenster: 24, 48, and 72 hours and 7 days after surgery
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The presence or absence of postoperative nausea or vomiting will be recorded at each postoperative assessment.
The outcome will be reported as the number and percentage of participants experiencing nausea or vomiting in each study group.
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24, 48, and 72 hours and 7 days after surgery
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Incidence of Postoperative Pruritus
Zeitfenster: 24, 48, and 72 hours and 7 days after surgery
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The presence or absence of postoperative pruritus will be recorded at each assessment.
The outcome will be reported as the number and percentage of participants experiencing pruritus in each study group.
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24, 48, and 72 hours and 7 days after surgery
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Incidence of Postoperative Urinary Retention Requiring Bladder Catheterization
Zeitfenster: 24, 48, and 72 hours and 7 days after surgery
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Postoperative urinary retention will be defined as the need for bladder catheterization.
The outcome will be reported as the number and percentage of participants requiring catheterization in each study group.
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24, 48, and 72 hours and 7 days after surgery
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Length of Hospital Stay
Zeitfenster: From the day of surgery until hospital discharge, assessed up to 30 days
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Length of hospital stay will be calculated as the number of complete days from the postoperative period until hospital discharge, based on the electronic clinical record.
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From the day of surgery until hospital discharge, assessed up to 30 days
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Mitarbeiter und Ermittler
Sponsor
Sponsor
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn (Tatsächlich)
Studienbeginn
Primärer Abschluss (Geschätzt)
Primärer Abschluss
Studienabschluss (Geschätzt)
Studienabschluss
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Tatsächlich)
Zuerst gepostet
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Tatsächlich)
Letztes Update gepostet
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Zuletzt verifiziert
Zuletzt verifiziert
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Schlüsselwörter
Zusätzliche relevante MeSH-Bedingungen
- Schmerzen
- Neurologische Manifestationen
- Postoperative Komplikationen
- Pathologische Prozesse
- Pathologische Zustände, Anzeichen und Symptome
- Anzeichen und Symptome
- Schmerzen, postoperativ
- Akuter Schmerz
- Heterocyclische Verbindungen
- Heterocyclische Verbindungen, Fusionsring
- Alkaloide
- Polycyclische aromatische Kohlenwasserstoffe
- Polycyclische Verbindungen
- Heterocyclische Verbindungen, 4 oder mehr Ringe
- Morphinans
- Opiatalkaloide
- Heterocyclische Verbindungen, Brückenring
- Phenanthrenes
- Buprenorphin
Andere Studien-ID-Nummern
Andere Studien-ID-Nummern
- CD2025/035
Plan für individuelle Teilnehmerdaten (IPD)
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Beschreibung des IPD-Plans
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Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt
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