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Prevalence and Risk Factors of SARS-CoV-2 Antibody Responses (COVID-19) (SERO-MARES)

12. juni 2020 opdateret af: Pere Clave, Hospital de Mataró

Prevalence and Risk Factors of SARS-CoV-2 Antibody Responses and Assymptomatic Carriers Among a Cohort of 2,300 Healthcare Workers at the Consorci Sanitari Del Maresme (CSdM)

Observational and prospective study with one year of follow-up of the cohort of workers of the CSdM, including workers of subcontracted companies working in the Hospital of Mataró (2,300 workers approximately) and with controls at baseline and at 3, 6, 9 and 12 months. All CSdM workers will be invited to participate by e-mail and by announcements in the corporate website. A space will be set up on the corporate intranet where workers will be informed about the study, will be able to give their informed consent and will be able to answer an electronic questionnaire regarding socio-demographic, clinical and labour personal characteristics. Once the questionnaire answered, participants will be authorized to schedule a blood extraction. Prevalence of antibodies against SARS-CoV-2 will be analyzed (IgA, IgM, IgG). PCR will be also performed for IgM and IgA positive subjects.

Studieoversigt

Status

Ukendt

Intervention / Behandling

Detaljeret beskrivelse

  • Study design: observational and prospective study with one year of follow-up of the cohort of workers of the CSdM, including workers of subcontracted companies working in the Hospital of Mataró (2,300 workers approximately) and with controls at baseline and at 3, 6, 9 and 12 months.
  • Aims: to perform a universal test for all the professionals of the Consorci Sanitari del Maresme (CSdM) in order to carry out the following objectives:

    1. Let them know if they have been exposed to the SARS-CoV-2 virus.
    2. Identify asymptomatic carriers of SARS-CoV-2 virus.
    3. Develop an immune map of all the professionals to: a) describe the seroprevalence of SARS-CoV-2 antibodies and their evolution over a year; b) help minimize the risk of infection in CSdM professionals; c) contribute to the improvement of knowledge about the infection and the social and occupational factors that affect its spread; and d) allow in the future to identify the duration of immunity against SARS-CoV-2.
  • Time Frame: 1 year.
  • Study population: all workers from the healthcare centers of the Consorci Sanitari del Maresme will be invited to participate by e-mail and by announcements in the corporate website. A space will be set up on the corporate intranet where workers will be informed about the study, will be able to give their informed consent and will be able to answer an electronic questionnaire regarding socio-demographic, clinical and labour personal characteristics. Once the questionnaire answered, participants will be authorized to schedule a blood extraction.
  • Methods: Prevalence of antibodies against SARS-CoV-2 will be analyzed (IgA, IgM, IgG) and PCR will be also performed for IgM and IgA positive subjects following this algorithm:

Serological study:

  1. Screening the entire population with total CLIA result (IgA, IgM, IgG) to determine negatives.
  2. ELISA for positives with differentiated IgM, IgA and IgG results.
  3. PCR of nasopharyngeal smears on all IgM and IgA + (to determine asymptomatic cases).

There will be other blood samplings and determination points at 3, 6, 9 and 12 months for all the study participants.

Undersøgelsestype

Observationel

Tilmelding (Forventet)

2400

Kontakter og lokationer

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

Studiesteder

    • Barcelona
      • Mataró, Barcelona, Spanien, 08304
        • Rekruttering
        • Hospital de Mataró
        • 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

Prøveudtagningsmetode

Ikke-sandsynlighedsprøve

Studiebefolkning

Professionals working at the Maresme Health Consortium (CSdM).

Beskrivelse

Inclusion Criteria:

  • All the professionals working at the Consorci Sanitari del Maresme (approximately 2300 subjects).

Exclusion Criteria:

  • None.

Studieplan

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

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Antibodies to SARS-CoV2: IgA, IgM, IgG
Tidsramme: 1 year
  • Screening for the entire population with total IgA, IgM, IgG to screen the negatives
  • ELISA for positives with differentiated IgM+IgA vs IgG specific for SARS-Cov-2 seroprevalence of SARS-CoV-2 antibodies and their evolution over a year; b) help minimize the risk of infection in CSdM professionals; c) contribute to the improvement of knowledge about the infection and the social and occupational factors that affect its spread; and d) allow in the future to identify the duration of immunity against SARS-CoV-2.
1 year
PCR of nasopharyngeal smears on all IgM +
Tidsramme: 1 year
  • To detect symptomatic or asymptomatic carriers
  • New diagnostics of COVID19 confirmed by PCR of nasopharyngeal smears
1 year

Samarbejdspartnere og efterforskere

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

Efterforskere

  • Ledende efterforsker: Pere Clavé, MD, PhD, Hospital de Mataró

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)

8. juni 2020

Primær færdiggørelse (Forventet)

30. juni 2021

Studieafslutning (Forventet)

30. juni 2021

Datoer for studieregistrering

Først indsendt

8. juni 2020

Først indsendt, der opfyldte QC-kriterier

8. juni 2020

Først opslået (Faktiske)

11. juni 2020

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

16. juni 2020

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

12. juni 2020

Sidst verificeret

1. juni 2020

Mere information

Begreber relateret til denne undersøgelse

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

INGEN

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 .

Kliniske forsøg med SARS-CoV-2

Kliniske forsøg med Blood sample

Abonner