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Lokale antibiotika til brystimplantater (BREAST-AB)

24. september 2026 opdateret af: Mikkel Herly

Profylaktisk behandling af brystimplantater med en opløsning af gentamicin, vancomycin og cefazolin antibiotika til kvinder, der gennemgår brystrekonstruktionskirurgi: et randomiseret kontrolleret forsøg (BREAST-AB-forsøget)

The BREAST-AB Trial is a multi-center, randomized, double blind, placebo-controlled trial investigating the efficacy of local application of gentamicin, vancomycin and cefazolin in decreasing all-cause implant explantation after breast reconstruction.

Studieoversigt

Status

Aktiv, ikke rekrutterende

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

The BREAST-AB Trial will include women undergoing breast reconstruction with implants. The objective is to determine the efficacy of local antibiotics in decreasing all-cause implant explantation. Participants will be randomized to local application of placebo or gentamicin, vancomycin and cefazolin in a saline solution onto the implant and the dissected breast pocket. All patients undergoing unilateral breast reconstruction will be randomized to the trial drug or placebo in a ratio of 1:1. All patients undergoing bilateral reconstruction will be randomized to the trial treatment on one of their breasts and placebo to the contralateral breast. A total number of 1274 of breasts undergoing breast reconstruction will be included in the trial.

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

1003

Fase

  • Fase 3

Kontakter og lokationer

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

Studiesteder

      • Aalborg, Danmark, 9000
        • Aalborg University Hospital
      • Aarhus, Danmark, 8000
        • Aarhus University Hospital
      • Copenhagen, Danmark, 2100
        • Rigshospitalet
      • Esbjerg, Danmark, 6700
        • South-West Jutland Hospital
      • Herlev, Danmark, 2730
        • Herlev and Gentofte Hospital
      • Odense, Danmark, 5000
        • Odense University Hospital
      • Roskilde, Danmark, 4000
        • Zealand University Hospital
      • Vejle, Danmark, 7100
        • Vejle Hospital

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

18 år og ældre (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ja

Køn, der er berettiget til at studere

Kvinde

Beskrivelse

Inclusion Criteria:

  • Age ≥ 18 years

  • Biologically female

  • Signed informed consent

  • Scheduled for breast reconstruction with implants or expanders including:

    1. Immediate or delayed reconstructions
    2. Bilateral or unilateral reconstructions
    3. With or without simultaneous flap reconstruction

Exclusion Criteria:

  • Pregnancy
  • Breast feeding
  • Known allergy towards Vancomycin, Gentamicin and Cefazolin
  • Known anaphylactic reaction towards other beta-lactam antibiotics or aminoglycosides
  • Known allergy towards neomycin
  • Known impaired renal function with GFR < 60 mL/min
  • Participation in investigational drug trials and projects concerning disinfecting agents in the breast implant cavity
  • Myasthenia Gravis

Studieplan

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

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Forebyggelse
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Firedobbelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Placebo komparator: Irrigation of implants with sterile isotonic saline

The placebo solution will consist of 500 mL of sterile isotonic (9%) saline contained in a infusion bag.

500 mL of sterile isotonic (9%) saline. The solution will be used to wash the dissected implant pocket and the implant prior to insertion in the implant pocket.

Andre navne:
  • Natriumklorid Fresenius Kabi 9 mg-ml
Eksperimentel: Irrigation of implants with a triple antibiotic solution

The antibiotic solution will contain 1000 mg vancomycin, 80 mg gentamicin and 1000 mg cefazolin in 500 mL sterile isotonic (9%) saline

The antibiotic solution will contain 1000 mg vancomycin, 80 mg gentamicin and 1000 mg cefazolin in a 500 mL isotonic saline solution. The solution will be used to wash the dissected implant pocket and the implant prior to insertion in the implant pocket.

Andre navne:
  • Hexamycin, Cefazolin "MIP" og Bactocin

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
All-cause explantation of the breast implant after the breast reconstruction surgery
Tidsramme: 180 days

All-cause explantation will be defined as explantation and discarding of the implant. Replacement of an expander with a permanent implant and replacement of a permanent breast implant with a new permanent breast implant due to cosmetic revisions such as asymmetry, implant malposition, change of size or implant rotation will not be counted as an explantation.

180 days

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Time to explantation (days)
Tidsramme: 180 days

Time to explantation will be defined as the amount of days between the breast reconstruction and the implant explantation surgery.

180 days
Revision surgery with incision of the fibrous capsule after the breast reconstruction surgery (Y/N)
Tidsramme: 180 days

The breast reconstruction surgery will be defined as the surgery where they received the allocated treatment

180 days
Exchange of permanent implant to expander implant after the breast reconstruction surgery (Y/N)
Tidsramme: 180 days

The breast reconstruction surgery will be defined as the surgery where they received the allocated treatment

180 days
Surgical site infection that leads to antibiotic treatment after the breast reconstruction surgery
Tidsramme: 180 days

Surgical site infection will be defined according to the CDC classification of surgical site infetion leading to antibiotic treatment with oral or intravenous antibiotics administered after the surgery.

180 days
All-cause explantation of the breast implant within 1 year after the breast reconstruction surgery
Tidsramme: 1 year

All-cause explantation will be defined as explantation and discarding of the implant. Replacement of an expander with a permanent implant and replacement of a permanent breast implant with a new permanent breast implant due to cosmetic revisions such as asymmetry, implant malposition, change of size or implant rotation will not be counted as an explantation.

1 year

Andre resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Time from the breast reconstruction surgery to discharge (days)
Tidsramme: 180 days

Time to discharge will be defined as the amount of days between the breast reconstruction and the day of discharge.

180 days
Re-admission after the breast reconstruction surgery (Y/N)
Tidsramme: 180 days

The breast reconstruction surgery will be defined as the surgery where the patient received the allocated treatment.

180 days
Long term follow-up after 5, 10 and 15 years
Tidsramme: 15 years

Capsular contracture and the Baker classification grade will be obtained from the National Patient Registry and the patients' medical journals after 5, 10 and 15 years. The BREAST-Q questionnaire will be used to assess patient-reported outcomes. The patients will be contacted and asked to fill out the questionnaire with 5 year-intervals after the surgery.

15 years

Samarbejdspartnere og efterforskere

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

Sponsor

Samarbejdspartnere

Efterforskere

  • Ledende efterforsker: Mikkel Herly, MD, Ph.D., Department of Plastic Surgery and Burns Treatment

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

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 (Faktiske)

27. januar 2021

Primær færdiggørelse (Anslået)

26. september 2026

Studieafslutning (Anslået)

1. september 2027

Datoer for studieregistrering

Først indsendt

26. januar 2021

Først indsendt, der opfyldte QC-kriterier

26. januar 2021

Først opslået (Faktiske)

29. januar 2021

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

29. september 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

24. september 2026

Sidst verificeret

1. august 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • BREAST-AB-01
  • 2020-002459-40 (EudraCT nummer)
  • 0058322 (Andet bevillings-/finansieringsnummer: Novo Nordisk Foundation)
  • R-189- A4127 (Andet bevillings-/finansieringsnummer: Medicine Fund of the Danish Regions)

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

JA

IPD-planbeskrivelse

The protocol including the statistical analysis plan is published in BMJ Open (doi:10.1136/bmjopen-2021-058697) prior to unblinding. The main article will include the primary and secondary outcomes. The tertiary and long-term outcomes will be included in subsequent articles. The manuscripts will be submitted to peer-reviewed international journals and both positive, negative and inconclusive results will be published. The findings of the trial will be shared with participating sites and presented at national and international conferences. The results will be disseminated to the public but will not be shared directly with participating patients.

IPD-delingstidsramme

After the end of the trial, the data will become available (Anticipated july 2025)

IPD-delingsadgangskriterier

Researchers and other relevant parties can be granted access to selected anonymized data after publication upon request to the principal-sponsor investigator

IPD-deling Understøttende informationstype

  • STUDY_PROTOCOL
  • SAP
  • ICF
  • CSR

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

Studerer et amerikansk FDA-reguleret lægemiddelprodukt

Ingen

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ingen

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .