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Accelerated Flap Coverage Versus Standard Timing in the Treatment of Severe Lower Extremity Musculoskeletal Injuries (FLAP ATTACK)

15. september 2026 opdateret af: Johns Hopkins University
The goal of this randomized controlled trial is to determine if accelerated flap coverage compared to standard flap coverage timing leads to improved infection-related complications in patients with open fractures and/or dislocations below the knee. Eligible patients will be randomized to receive either a flap within a goal of 72 hours of injury or standard of care flap timing for the institution. The primary outcome will be a composite outcome to evaluate clinical status 6 months after randomization. Components of the composite outcome will be hierarchically assessed in the following order: 1) all-cause mortality, 2) amputation related to injury, 3) re-operation for infection and/or flap complication (flap compromise, partial and/or complete flap failure), and 4) days in hospital, defined as days in an acute in-patient hospital (i.e., not rehab or nursing facility).

Studieoversigt

Status

Ikke rekrutterer endnu

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

Infection following severe lower extremity musculoskeletal injuries is a challenging problem. Several factors hypothesized to influence infection have been explored and, in many cases, optimized or found not to be influential. A persistent area of uncertainty and variability is the timing of acute soft tissue coverage. In the United States, the mean time to coverage from injury is 10 days, and infection rates are 20-35%. In the United Kingdom, there are national guidelines to support coverage within 72 hours of injury, and infection rates are less than 10%. While the data to support early coverage is promising, the necessary evidence to make this significant change is lacking. To justify the mobilization of resources and expense required to shift practice, a definitive trial is needed. This trial seeks to fill this critical knowledge gap.

The primary objective of this trial is to determine if accelerated flap coverage (within 72 hours of injury) compared to standard flap coverage timing leads lower rates of infection and infection-related complications. The trial population includes patients 18 years and older with an acute open fracture and/or dislocation below the knee, with a diagnosed need for acute soft tissue coverage with a flap. Patients who undergo primary amputation prior to attempted flap coverage will be excluded. There will be 356 participants randomized in 1:1 ratio to receive either accelerated flap coverage (goal of flap within 72 hours from injury) or flap coverage at the time that reflects the standard of care at each institution. The timing of the trial interventions, other adjunctive treatments, the fracture fixation, and flap coverage procedures will be documented for both treatment groups. Management of the fracture or dislocation, selection of flap, and post-injury flap management will be at the discretion of the operating surgeons and documented for both treatment groups. Participants will have follow-up at 6 weeks, 3 months, 6 months, and 12 months post-randomization.

The primary outcome will be a composite outcome to evaluate clinical status 6 months after randomization. Components of the composite outcome will be hierarchically assessed in the following order: 1) all-cause mortality, 2) amputation related to injury, 3) re-operation for infection and/or flap complication (flap compromise, partial and/or complete flap failure), and 4) days in hospital, defined as days in an acute in-patient hospital (i.e., not rehab or nursing facility). The secondary outcomes will independently assess the individual components of the primary outcome at 6 and 12 months, the composite outcome at 12 months, and health-related quality of life and patient satisfaction over 6 and 12 months. An Adjudication Committee will review primary and secondary endpoints and a Data Safety Monitoring Committee (DSMC) will review all safety events.

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

356

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

  • Navn: Lily Mundy, MD
  • Telefonnummer: (410)706-2492
  • E-mail: lmundy3@jhu.edu

Studiesteder

    • Arizona
      • Phoenix, Arizona, Forenede Stater, 85006
    • California
      • Los Angeles, California, Forenede Stater, 90033
      • Los Angeles, California, Forenede Stater, 90033
      • Los Angeles, California, Forenede Stater, 90084
        • Cedars-Sinai Medical Center
        • Kontakt:
      • Sacramento, California, Forenede Stater, 95817
        • UC Davis Medical Center
        • Kontakt:
      • San Diego, California, Forenede Stater, 92121
    • Connecticut
      • New Haven, Connecticut, Forenede Stater, 06510
        • Yale New Haven Hospital
        • Kontakt:
    • Illinois
      • Chicago, Illinois, Forenede Stater, 60637
    • Indiana
      • Indianapolis, Indiana, Forenede Stater, 46202
        • IU Health University Hospital
        • Kontakt:
    • Louisiana
      • New Orleans, Louisiana, Forenede Stater, 70112
        • Louisiana State University Health Sciences Center
        • Kontakt:
    • Maryland
      • Baltimore, Maryland, Forenede Stater, 21287
        • Johns Hopkins Hospital
        • Kontakt:
      • Baltimore, Maryland, Forenede Stater, 21201
        • University of Maryland - Shock Trauma Center
        • Kontakt:
      • Baltimore, Maryland, Forenede Stater, 21224
        • Johns Hopkins Hospital - Bayview Medical Center
        • Kontakt:
      • Largo, Maryland, Forenede Stater, 20774
        • University of Maryland - Capital Region
        • Kontakt:
    • Massachusetts
      • Boston, Massachusetts, Forenede Stater, 02115
    • Mississippi
      • Jackson, Mississippi, Forenede Stater, 39216
        • University of Mississippi Medical Center
        • Kontakt:
    • Missouri
      • Columbia, Missouri, Forenede Stater, 65212
    • Nebraska
      • Omaha, Nebraska, Forenede Stater, 68198
        • University of Nebraska Medical Center
        • Kontakt:
    • New York
      • The Bronx, New York, Forenede Stater, 11418
    • Ohio
      • Cincinnati, Ohio, Forenede Stater, 45219
        • University of Cincinnati Medical Center
        • Kontakt:
      • Columbus, Ohio, Forenede Stater, 43221
        • Ohio State University Wexner Medical Center
        • Kontakt:
      • Dayton, Ohio, Forenede Stater, 45409
    • Oregon
      • Portland, Oregon, Forenede Stater, 97239
        • Oregon Health & Science University
        • Kontakt:
    • Rhode Island
      • Providence, Rhode Island, Forenede Stater, 02903
    • Tennessee
      • Nashville, Tennessee, Forenede Stater, 37232
        • Vanderbilt University Medical Center
        • Kontakt:
    • Texas
      • Houston, Texas, Forenede Stater, 77030
        • The University of Texas Health Science Center at Houston
        • Kontakt:
    • Utah
      • Salt Lake City, Utah, Forenede Stater, 84132
    • Virginia
      • Falls Church, Virginia, Forenede Stater, 22042
    • Washington
      • Seattle, Washington, Forenede Stater, 98195
        • UW Medical Center
        • Kontakt:
          • Jeffrey Friedrich, MD
          • Telefonnummer: 206-598-3300
          • E-mail: jfriedri@uw.edu
    • Wisconsin
      • Madison, Wisconsin, Forenede Stater, 53792
        • University of Wisconsin Health University Hospital
        • Kontakt:
      • Milwaukee, Wisconsin, Forenede Stater, 53226

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

Ingen

Beskrivelse

Inclusion Criteria:

  • Patients 18 years of age or older.
  • Severe lower extremity open fracture and/or dislocation below the knee requiring an acute flap for management of the musculoskeletal injury.
  • Treating surgeon is willing to comply with treatment allocation.
  • Able to be randomized within 72 hours of injury.

Exclusion Criteria:

  • Site is unable to implement the accelerated flap protocol due to local logistics.
  • Primary amputation anticipated prior to attempted flap for management of the injury.
  • Critical limb ischemia that requires re-vascularization for limb perfusion.
  • Chronic or acute infection at or near the musculoskeletal injury site at the time of initial injury surgery.
  • Burns at the musculoskeletal injury site.
  • Incarceration.
  • Expected injury survival of less than 12 months.
  • Terminal illness with expected survival of less than 12 months.
  • Currently enrolled in a trial that does not permit co-enrollment.
  • Declined to provide informed consent.
  • Unable to obtain informed consent due to language barriers.
  • Unable to obtain informed consent because a legally authorized representative (LAR) was unavailable.
  • Anticipated problems, in the judgment of research personnel, with maintaining follow-up with the patient.
  • Prior enrollment in the trial.
  • Eligible patient or LAR was not approached within screening window (missed participant).
  • Other reason to exclude the patient, as approved by the Principal Investigators.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Accelereret klapdækning
Accelereret timing af flapkirurgi med et mål på inden for 72 timer fra skade. Håndtering af bruddet eller dislokationen, valg af klap og post-skade klaphåndtering vil ske efter de operationelle kirurgers skøn og dokumenteres for begge behandlingsgrupper.
Activation of the accelerated flap pathway with a goal flap time of <72h from injury
Aktiv komparator: Standard of Care klaptiming
Klapoperationen vil blive udført på standard plejetidspunkt for institutionen. Håndtering af bruddet eller dislokationen, valg af klap og post-skade klaphåndtering vil ske efter de operationelle kirurgers skøn og dokumenteres for begge behandlingsgrupper.
Flap timing at the standard of care timing for the clinical site

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Clinical Status
Tidsramme: 6 months
Clinical status is a hierarchical composite of the following outcomes: 1) All-cause mortality, 2) Amputation related to injury, 3) Re-operation for infection and/or flap complication (flap compromise, partial and/or complete flap failure), and 4) Days in hospital, defined as days in an acute in-patient hospital (i.e., not rehab or nursing facility)
6 months

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Mortality
Tidsramme: 6 and 12 months
All-cause mortality. Mortality will be time-to-event, with the assumption that earlier is worse than later.
6 and 12 months
Amputation
Tidsramme: 6 and 12 months
Amputation related to injury. Amputation will be time-to-event, with the assumption that earlier is worse than later.
6 and 12 months
Unplanned re-operation
Tidsramme: 6 and 12 months
Unplanned re-operation for infection and/or flap complication (flap compromise, partial and/or complete flap failure). Re-operation for infection and flap complication will account for more than one operation, with the assumption that more is worse than less.
6 and 12 months
Number of days in hospital
Tidsramme: 6 and 12 months
Days in an acute in-patient hospital (i.e., not rehab or nursing facility)
6 and 12 months
Patient-reported health status as assessed by the Euro-QoL (EQ-5D-5L)
Tidsramme: 6 and 12 months
Patient-reported health status as assessed by the EQ-5D-5L. The EQ-5D-5L is scored on a 0 to 100 mm scale. 0 mm represents "the worst health you can imagine to 100 mm which represents "the best health you can imagine."
6 and 12 months
Quality of life as assessed by the Limb-Q
Tidsramme: 6 and 12 months
Health-related quality of life and patient satisfaction measured with the Limb-Q. The Limb-Q is a set of independently functioning scales. All scales are scored 0-100 (higher = better). The Limb-Q Appearance, Physical, Symptoms, Financial Impact, Life Impact, and Psychological scales will be used.
6 and 12 months
Clinical Status
Tidsramme: 12 months
Clinical status is a hierarchical composite of the following outcomes: 1) All-cause mortality, 2) Amputation related to injury, 3) Re-operation for infection and/or flap complication (flap compromise, partial and/or complete flap failure), and 4) Days in hospital, defined as days in an acute in-patient hospital (i.e., not rehab or nursing facility)
12 months

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Samarbejdspartnere

Efterforskere

  • Ledende efterforsker: Lily HMIR Mundy, MD, Johns Hopkins University

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Anslået)

1. januar 2027

Primær færdiggørelse (Anslået)

1. juli 2030

Studieafslutning (Anslået)

1. december 2030

Datoer for studieregistrering

Først indsendt

15. september 2026

Først indsendt, der opfyldte QC-kriterier

15. september 2026

Først opslået (Faktiske)

18. september 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

18. september 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

15. september 2026

Sidst verificeret

1. september 2026

Mere information

Begreber relateret til denne undersøgelse

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • IRB00525377
  • 1UG3AR085896 (U.S. NIH-bevilling/kontrakt)

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

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Ingen

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