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The PIONEER Comparative Effectiveness Study - Project 2

14 september 2026 bijgewerkt door: Frederick Korley, MD, PhD, University of Michigan

Comparing the Effectiveness of a Biomarker-plus-clinical Guidelines Algorithm Versus Clinical Guidelines Only for Safely Decreasing Brain Computed Tomography Utilization During Brain Injury Evaluations: The PIONEER Comparative Effectiveness Study

This is a pragmatic, open-label, multicenter, stepped-wedge, Type II hybrid effectiveness-implementation study. It is designed to evaluate both the comparative effectiveness and implementation feasibility of a biomarker-plus-clinical guidelines algorithm to reduce low-value brain computed tomography (CT) use in emergency department (ED) patients evaluated for suspected traumatic brain injury (TBI). The biomarkers are Glial Fibrillary Acidic Protein (GFAP) and Carboxy-terminal Hydrolase L1 (UCH-L1), two brain-injury proteins cleared by the FDA to support brain CT imaging decisions after trauma. All six participating EDs will contribute baseline data for the first 6 months under usual care (clinical guidelines only). Beginning in month 7, two sites will transition to implementing the biomarker-guided algorithm. At month 13, two additional sites will implement the biomarker-guided approach, and the final two sites will transition at month 19. By the end of the 24-month rollout period, all sites will have implemented the biomarker-guided pathway.

Studie Overzicht

Studietype

Ingrijpend

Inschrijving (Geschat)

3000

Fase

  • Niet toepasbaar

Contacten en locaties

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

Studiecontact

Studie Locaties

    • California
      • Sylmar, California, Verenigde Staten, 91342
        • UCLA-Olive View Medical Center
        • Contact:
        • Hoofdonderzoeker:
          • Breena Taira, MD, MPH
      • Torrance, California, Verenigde Staten, 90502
        • Harbor-UCLA Medical Center
        • Contact:
        • Hoofdonderzoeker:
          • Kabir Yadav, MD, MS, MHSH
    • Michigan
      • Clinton Township, Michigan, Verenigde Staten, 48038
        • Henry Ford Macomb (HFM)
        • Contact:
        • Hoofdonderzoeker:
          • Joseph Miller, MD, MS
      • Detroit, Michigan, Verenigde Staten, 48202
        • Henry Ford Hospital (HFH)
        • Contact:
        • Hoofdonderzoeker:
          • Joseph Miller, MD, MS
    • Oregon
      • Portland, Oregon, Verenigde Staten, 97239
        • Oregon Health & Science University (OHSU)
        • Contact:
        • Hoofdonderzoeker:
          • Bory Kea, MD, MCR
      • Portland, Oregon, Verenigde Staten, 97216
        • Adventist Health Portland (AHP)
        • Contact:
        • Hoofdonderzoeker:
          • Bory Kea, MD, MCR

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

  • Volwassen
  • Oudere volwassene

Accepteert gezonde vrijwilligers

Nee

Beschrijving

Inclusion

  • Age ≥18 years at the time of the emergency department visit.
  • Presentation to a participating emergency department following a traumatic injury mechanism (motor vehicle collision, fall from height, assault, head injury/head trauma/head strike, struck by or against an object, facial injury or laceration, or other general trauma). Presentations may also include alcohol intoxication or syncope when associated with a suspected traumatic brain injury.
  • Evidence of potential head or brain injury, defined as (i) the head being struck by an object, (ii) the head striking a hard object or surface, (iii) exposure of the brain to significant acceleration/deceleration forces, or (iv) clinician documentation that the patient was evaluated for suspected traumatic brain injury.
  • Glasgow Coma Scale (GCS) score of 13-15 at presentation.
  • Presentation to the emergency department within 24 hours of injury.

Exclusion Criteria:

  • Planned computed tomography (CT) imaging of the maxillofacial bones, chest, abdomen, or pelvis during the ED encounter AND clinicians do not intend to avoid brain CT imaging even if the biomarker test is negative.
  • Current use of anticoagulant or antiplatelet therapy, including but not limited to: Warfarin, Factor Xa inhibitors (e.g., apixaban [Eliquis], rivaroxaban [Xarelto]), Clopidogrel, Ticagrelor.
  • Presentation >24 hours after injury, due to the declining diagnostic sensitivity of Glial Fibrillary Acidic Protein (GFAP) and Carboxy-terminal Hydrolase L1 (UCH-L1) beyond this time window.

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: Onderzoek naar gezondheidsdiensten
  • Toewijzing: Gerandomiseerd
  • Interventioneel model: Sequentiële toewijzing
  • Masker: Geen (open label)

Wapens en interventies

Deelnemersgroep / Arm
Interventie / Behandeling
Actieve vergelijker: Clinical Pathway 2: Clinical Guidelines Only
Clinical Guidelines Only (Canadian Head CT Decision Rule)
During the baseline phase, sites will rely solely on established clinical guidelines to guide brain CT utilization in patients with suspected TBI. Specifically, providers will apply the Canadian CT Head Rule, a validated decision instrument that identifies patients at high risk for clinically important brain injury who require CT imaging. All sites will begin in this Guidelines-Only baseline phase and will continue using this approach until their assigned transition to the Guidelines + Biomarkers phase. Sites will transition in three waves, with two sites transitioning every six months.
Experimenteel: Clinical Pathway 1: Guidelines + Biomarkers
Canadian Head CT Decision Rule plus whole blood Glial Fibrillary Acidic Protein (GFAP) and Ubiquitin Carboxy-Terminal Hydrolase L1 (UCH-L1) measurement using the iSTAT.
Patients will be managed using an algorithm that integrates the Canadian Head CT Rule (CHCR) with iSTAT whole-blood GFAP and UCH-L1 testing. Patients who meet CHCR criteria for CT imaging and those whose CT imaging decision-making is not covered by CHCR (e.g., no loss of consciousness or amnesia) will receive iSTAT testing. Sites will be assigned to one of three implementation waves, with two sites transitioning to the Guidelines + Biomarkers phase every six months. Prior to their assigned transition, sites will continue to use guidelines alone. Once a site transitions to the Guidelines + Biomarkers phase, the integrated biomarker-guided algorithm will become the standard-of-care protocol at that site for eligible patients and will remain the standard of care for the remainder of the study.

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Tijdsspanne
The proportion of eligible Emergency department (ED) patients with suspected traumatic brain injury (TBI) who receive brain CT imaging.
Tijdsspanne: Initial Emergency room visit (approximately 24 hours)
Initial Emergency room visit (approximately 24 hours)

Secundaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Proportion of eligible ED patients with suspected TBI who receive brain CT imaging and have a clinically significant traumatic lesion.
Tijdsspanne: Initial Emergency room visit (approximately 24 hours)
Initial Emergency room visit (approximately 24 hours)
Incidence of clinically significant missed traumatic intracranial injury diagnosed within 7 days of the index ED visit
Tijdsspanne: Within 7 days of the index/initial ED visit
Within 7 days of the index/initial ED visit
Incidence of Neurosurgical interventions within 7 days of the index ED visit, without a new traumatic event.
Tijdsspanne: Within 7 days of the index/initial ED visit
Within 7 days of the index/initial ED visit
ED length of stay
Tijdsspanne: Initial Emergency room visit (approximately 24 hours)
This will be measured in minutes.
Initial Emergency room visit (approximately 24 hours)
Initial and sustained provider adherence at 6 and 24 months post-implementation
Tijdsspanne: 6 and 24 months post-implementation
6 and 24 months post-implementation
Provider acceptability and feedback
Tijdsspanne: During implementation phase (months 9-32)
Providers will answer 17 questions regarding the implementation of the biomarker guided algorithm and acceptability. Information from this will be summarized.
During implementation phase (months 9-32)
Provider trust in biomarker-guided CT decision making as measured by the proportion of biomarker-negative patients who don't get a CT
Tijdsspanne: During implementation phase (months 9-32)
During implementation phase (months 9-32)
30-day ED revisits and hospitalizations
Tijdsspanne: 30 days following Initial Emergency room visit
30 days following Initial Emergency room visit

Medewerkers en onderzoekers

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

Onderzoekers

  • Hoofdonderzoeker: Frederick Korley, MD, PhD, University of Michigan

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 (Geschat)

1 oktober 2026

Primaire voltooiing (Geschat)

1 januari 2029

Studie voltooiing (Geschat)

1 januari 2029

Studieregistratiedata

Eerst ingediend

14 september 2026

Eerst ingediend dat voldeed aan de QC-criteria

14 september 2026

Eerst geplaatst (Werkelijk)

18 september 2026

Updates van studierecords

Laatste update geplaatst (Werkelijk)

18 september 2026

Laatste update ingediend die voldeed aan QC-criteria

14 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

Ja

product vervaardigd in en geëxporteerd uit de V.S.

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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