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Farm-originated Antimicrobial Resistance Modeling: Exploring Humans-to-Animal Dissemination (FARMHAND)

3. november 2026 opdateret af: Centre Hospitalier de Saint-Brieuc

Farm-originated Antimicrobial Resistance Modeling: Exploring Humans-to-Animal Dissemination - FARMHAND

Antimicrobial resistance is a major public health issue. Methicillin resistance in Staphylococcus aureus (MRSA) is one of the indicators that is monitored particularly closely. In animals, pig farms, among others, have been identified as reservoirs of MRSA, with a risk of transmission to humans, particularly to individuals in direct contact with livestock. In France, the prevalence of MRSA in pig farms has increased markedly in recent years.

While cross-species transmission between pigs and humans in professional settings is well-documented, the temporal dynamics, the actual incidence of acquisition, and the associated determinants remain insufficiently characterized in France.

Adopting a "One Health" approach, this project aims to gain a better understanding of the mechanisms by which MRSA spreads between animal and human subpopulations and to incorporate these insights into a mathematical modeling framework.

Studieoversigt

Status

Ikke rekrutterer endnu

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

The participants in this project will be farmers representing 20 different pig farms, the majority of which will be located in Brittany-a region recognized as the leading pork-producing area in France.

Participants will be asked to provide two types of samples, only one of which will contain personally identifiable data.

  • Nasal swabs: Participants in the study will be asked to perform a self-administered nasal swab once a month, at approximately the same time each month. This method was selected because it has demonstrated an acceptable level of participant compliance, as well as satisfactory validity for detecting S. aureus carriage in humans.
  • Dust samples: Participants will be asked to collect dust samples from the production floor-specifically in the room within the finishing facility that houses the oldest animals-by wiping surfaces with a small cloth. This method was chosen because dust in livestock-rearing environments has been identified as a reliable indicator of MRSA carriage status in pigs.

These successive samplings will be carried out over time in order to analyze carriage dynamics and estimate epidemiological parameters of interest. A modeling component will be incorporated to make use of the data collected.

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

20

Fase

  • Ikke anvendelig

Kontakter og lokationer

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

Studiekontakt

Undersøgelse Kontakt Backup

Studiesteder

      • Ploufragan, Frankrig, 22440
        • Anses Ploufragan - Plouzané - Niort, site de Ploufragan
        • Kontakt:
          • Claire CHAUVIN, Dr
      • Saint-Brieuc, Frankrig, 22000
        • Centre Hospitalier de Saint-Brieuc - Paimpol - Tréguier, site de Saint-Brieuc
        • Kontakt:

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

Alle

Beskrivelse

Inclusion Criteria:

  • 18 years of age or older,
  • Work full-time as a pig farmer on the participating farm,
  • Have regular contact with the animals, defined as at least 4 days per week,
  • Be willing to participate in the study and sign an informed consent form,
  • Agree to perform monthly self-administered nasal swab sampling and to provide data via a questionnaire.

Exclusion Criteria:

  • Refusal to participate or inability to provide informed consent,
  • Inability to perform monthly self-administered nasal swabs in accordance with the protocol,
  • Employment on a part-time basis, or status as an intern or apprentice within the operation,
  • No inclusion of persons targeted by Articles L. 1121-5 to L. 1121-8 and L. 1122-1-2 of the Public Health Code (e.g., minors, legally protected adults, etc.)

Studieplan

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

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Grundvidenskab
  • Tildeling: N/A
  • Interventionel model: Enkelt gruppeopgave
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Farmers representing 20 different pig farms

Participants will be asked to provide two types of samples, only one of which will contain personally identifiable information.

  • Nasal samples: a monthly self-collected nasal swab, performed at approximately the same time each month.
  • Dust samples: following the collection and storage of the nasal swab, participants will be asked to collect dust samples from the production area-specifically, from the room within the fattening facility that houses the oldest animals-by wiping surfaces using a small cloth.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
To estimate the prevalence of nasal carriage of MRSA among pig farmers during the study period.
Tidsramme: From enrollment to the end of the study : 24 months

The primary outcome measure is the prevalence of nasal carriage of MRSA among pig farmers during the study period, as determined by microbiological detection from self-collected nasal swabs.

From enrollment to the end of the study : 24 months

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Describe the temporal dynamics of nasal carriage of Staphylococcus aureus among pig farmers and within farms.
Tidsramme: From enrollment to the end of the study : 24 months

The prevalence of nasal carriage of MSSA among pig farmers.

From enrollment to the end of the study : 24 months
Estimate the incidence of acquisition and clearance of MRSA and MSSA among pig farmers and within farms, based on repeated longitudinal measurements.
Tidsramme: From enrollment to the end of the study : 24 months

The incidence of acquisition and clearance of MRSA and MSSA among pig farmers, estimated from repeated longitudinal measurements of nasal carriage.

From enrollment to the end of the study : 24 months
Identify factors associated with the carriage and acquisition of MRSA among pig farmers.
Tidsramme: From enrollment to the end of the study : 24 months

The prevalence and incidence of MSSA and MRSA within the pig farm environment.

From enrollment to the end of the study : 24 months

Samarbejdspartnere og efterforskere

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

Sponsor

Samarbejdspartnere

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. november 2026

Primær færdiggørelse (Anslået)

1. november 2028

Studieafslutning (Anslået)

1. november 2028

Datoer for studieregistrering

Først indsendt

21. oktober 2026

Først indsendt, der opfyldte QC-kriterier

21. oktober 2026

Først opslået (Faktiske)

27. oktober 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

6. november 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

3. november 2026

Sidst verificeret

1. november 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • 2026_CHSB_FARMHAND
  • 2026-A01235-46 (Anden identifikator: ID RCB)

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

UBESLUTET

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