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Brachiale plexus zenuwblokkade versus standaardzorg voor gesloten reductie van distale radiusfracturen bij volwassenen - de BLOCK-studie. een nationale multicentrische gerandomiseerde gecontroleerde studie

16 september 2026 bijgewerkt door: Nordsjaellands Hospital

The aim of the project is to evaluate the beneficial and harmful effects of an ultrasound-guided brachial plexus nerve block for patients with a distal radius (wrist) fracture in the need of realignment of fractured bone endings without cutting the skin (closed reduction), in comparison to a haematoma block, which is standard care in Denmark.

Every participant will receive one of the following types of anaesthesia for the realignment of the wrist fracture:

  1. A nerve block of the arm (plexus brachialis block)
  2. A haematoma block, which is the current standard anaesthesia in the emergency departments.

Studie Overzicht

Studietype

Ingrijpend

Inschrijving (Geschat)

1716

Fase

  • Fase 4

Contacten en locaties

In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.

Studie Locaties

    • Capital Region
      • Hillerød, Capital Region, Denemarken, 3400
        • Copenhagen University Hospital - North Zealand Hillerød

Deelname Criteria

Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.

Geschiktheidscriteria

Leeftijden die in aanmerking komen voor studie

18 jaar en ouder (Volwassen, Oudere volwassene)

Accepteert gezonde vrijwilligers

Nee

Geslachten die in aanmerking komen voor studie

Allemaal

Beschrijving

Inclusion Criteria:

  • Adults (age ≥ 18 years) with a distal radius fracture in need of closed reduction

Exclusion Criteria:

  • Patients who would never qualify for surgery according to local guidelines
  • Lack of informed consent
  • No Danish Central Person Register (CPR) number
  • Allergies to the trial medication
  • Distal radius fracture initially deemed to require surgery regardless of the outcome of the closed reduction
  • Open fractures (fracture-related wound requiring sutures)
  • Other fractures on the same extremity ((NOT including distal ulna fracture(s))
  • Bilateral distal radius fractures both requiring closed reduction
  • Concomitant medical or surgical condition taking priority over the closed reduction of the distal radius fracture.

Studie plan

Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.

Hoe is de studie opgezet?

Ontwerpdetails

  • Primair doel: Behandeling
  • Toewijzing: Gerandomiseerd
  • Interventioneel model: Parallelle opdracht
  • Masker: Dubbele

Wapens en interventies

Deelnemersgroep / Arm
Interventie / Behandeling
Experimenteel: Intervention group

Ultrasound-guided brachial plexus nerve block. A total of 30 ml of lidocaine (10 mg/ml) with adrenaline (5 ug/ml) will be administered in multiple injections.

The block will be performed as either a lateral infraclavicular brachial plexus block or an axillary brachial plexus block

Actieve vergelijker: Control group

Haematoma block with local anaesthetics i.e. lidocaine with adrenaline

Participants will receive no peripheral nerve block and receive a haematoma block, with or without supplemental sedation and/or systemic analgesia for the closed reduction according to local guidelines and clinical practices

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Tijdsspanne
Cumulatief percentage patiënten met een distale radiusfractuuroperatie
Tijdsspanne: 90 dagen na gesloten reductie
90 dagen na gesloten reductie

Secundaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Composite outcome of treatment related complications
Tijdsspanne: 90 days after closed reduction

loco-regional neurological complications from affected arm, local anaesthetic systemic toxicity, soft tissue injuries (including skin injuries) related to the closed reduction procedure, infection at the site of needle puncture, vessel puncture requiring subsequent treatment (including compression), pneumothorax, allergic reaction, new bone or joint injury (e.g. dislocation or fracture) after the closed reduction and/or pulmonary embolism

90 days after closed reduction
Patient Rated Wrist Evaluation (PRWE)
Tijdsspanne: 90 days after closed reduction

The PRWE is a patient-reported outcome and the PRWE-score is calculated from the Danish-validated translation of the PRWE questionnaire

90 days after closed reduction
Maximum pain score in the affected wrist during closed reduction(s)
Tijdsspanne: 0-12 hours after the closed reduction

The pain outcomes are patient-reported as a Numerical Rating Scale (NRS) score on a scale from 0=no pain to 10=worst pain imaginable. If the patient has the closed reduction performed more than one time, the patient will be asked to report the worst pain experienced during all the attempts of a closed reduction.

0-12 hours after the closed reduction
Proportion of patients with unacceptable radiographic fracture position immediately after closed reduction
Tijdsspanne: 0 -24 hours after closed reduction

The radiographic fracture position is evaluated according to the American Academy of Orthopaedic Surgerons (AAOS) guidelines. The fracture position is unacceptable if the fracture has a radial shortening > 3 mm, > 10 degrees dorsal tilt of the articular surface of radius from a perpendicular line on the longitudianal axis of radius or intra-articular displacement or step-off > 2 mm.

0 -24 hours after closed reduction

Andere uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Aantal pogingen gebruikt voor gesloten reductie
Tijdsspanne: Onmiddellijk na gesloten reductie
Onmiddellijk na gesloten reductie
Aandeel van individuele complicaties in de samengestelde secundaire uitkomst
Tijdsspanne: 90 dagen na gesloten reductie
90 dagen na gesloten reductie
Pain at rest in the affected wrist immediately, 90 days, and 12 months after closed reduction
Tijdsspanne: 0-12 hours, 90 days and 12 months after closed reduction

The pain outcomes are patient-reported as a Numerical Rating Scale (NRS) score on a scale from 0=no pain to 10=worst pain imaginable.

0-12 hours, 90 days and 12 months after closed reduction
Maximum pain in the affected wrist within the first 24 hours after closed reduction
Tijdsspanne: 24-36 hours after the closed reduction.

The pain outcomes are patient-reported as an NRS score on a scale from 0=no pain to 10=worst pain imaginable.

24-36 hours after the closed reduction.
Proportion of patients with complex regional pain syndrome (CRPS)
Tijdsspanne: 90 days and 12 months after closed reduction

CRPS is defined according to the Budapest Criteria

90 days and 12 months after closed reduction
Disabilities of the Arm, Shoulder, and Hand (DASH) score
Tijdsspanne: 90 days and 12 months after closed reduction

DASH-score is calculated from the Danish-validated translation of the DASH questionnaire

90 days and 12 months after closed reduction
Patient Rated Wrist Evaluation (PRWE)
Tijdsspanne: 12 months after closed reduction

PRWE-score is calculated from the Danish-validated translation of the PRWE questionnaire

12 months after closed reduction
Quality of life (EQ-5D-5L) score
Tijdsspanne: 90 days and 12 months after closed reduction

The Danish translation of the EQ-5D-5L questionnaire is used and the EQ-5D-5L-score is calculated based on the Danish EQ-5D-5L value set

90 days and 12 months after closed reduction
Difficulty of closed reduction of the fracture
Tijdsspanne: Immediately after closed reduction

The doctor reported ease on a numeric rating scale from 0-10; 0=very easy, 10=very difficult)

Immediately after closed reduction
Discomfort related to the anaesthetic procedure
Tijdsspanne: 0-12 hours after closed reduction

The discomfort is a patient-reported outcome on a numeric rating scale from 0-10; 0=no discomfort, 10=very uncomfortable

0-12 hours after closed reduction
Overall satisfaction with the treatment 0 to 24 hours after initiation of the anaesthesia
Tijdsspanne: 24 hours after closed reduction

The overall satisfaction is a patient-reported outcome on a numeric rating scale from 0-10; 0=very unsatisfied, 10=very satisfied. When evaluating the treatment, the patient is specifically asked to include all elements of the treatment including: the anaesthetic (procedure and following effects), the experience during the closed reduction and the pain and general sensation in the arm/wrist in the first 24 hours after the treatment commencement.

24 hours after closed reduction
Proportion of patients with unacceptable radiographic position at first follow-up in the orthopaedic out-patient clinic (typically 10-14 days post-reduction)
Tijdsspanne: 10-14 days after closed reduction

The radiographic fracture position is evaluated according to the American Academy of Orthopaedic Surgerons (AAOS) guidelines. The fracture position is unacceptable if the fracture has a radial shortening > 3 mm, > 10 degrees dorsal tilt of the articular surface of radius from a perpendicular line on the longitudianal axis of radius or intra-articular displacement or step-off > 2 mm.

10-14 days after closed reduction
Proportion of patients having one or more serious adverse events (SAEs), including events related to loss of hand function
Tijdsspanne: Within 90 days after closed reduction

A SAE is defined as an adverse event that leads to the following incidents:

  • Death
  • Life threatening injury or disease
  • Severe or permanent disability
  • Admission to the hospital or prolongation of hospitalisation

Surgical reduction of the distal radius fracture, including relevant admission to hospital, will not be catagorised as a SAE.

Within 90 days after closed reduction
Proportion of patients having one or more adverse events (AEs)
Tijdsspanne: Within 24 hours after closed reduction

An AE is defined as any harmful and unintended event, sign, or symptom, that appear during the trial period, regardless of whether this AE is considered related to the treatment or not.

Within 24 hours after closed reduction

Medewerkers en onderzoekers

Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.

Onderzoekers

  • Hoofdonderzoeker: Cecilie D Harwood, MD, PhD-fellow, Copenhagen University Hospital - North Zealand
  • Hoofdonderzoeker: Anne-Sofie Jellestad, MD, PhD-fellow, Copenhagen University Hospital - North Zealand

Publicaties en nuttige links

De persoon die verantwoordelijk is voor het invoeren van informatie over het onderzoek stelt deze publicaties vrijwillig ter beschikking. Dit kan gaan over alles wat met het onderzoek te maken heeft.

Studie record data

Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.

Bestudeer belangrijke data

Studie start (Werkelijk)

10 december 2024

Primaire voltooiing (Geschat)

24 november 2026

Studie voltooiing (Geschat)

24 augustus 2027

Studieregistratiedata

Eerst ingediend

6 november 2024

Eerst ingediend dat voldeed aan de QC-criteria

6 november 2024

Eerst geplaatst (Werkelijk)

7 november 2024

Updates van studierecords

Laatste update geplaatst (Werkelijk)

21 september 2026

Laatste update ingediend die voldeed aan QC-criteria

16 september 2026

Laatst geverifieerd

1 september 2026

Meer informatie

Termen gerelateerd aan deze studie

Plan Individuele Deelnemersgegevens (IPD)

Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?

NEE

Informatie over medicijnen en apparaten, studiedocumenten

Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel

Nee

Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct

Nee

Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .

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