Evaluation of the Effectiveness of Vaccination With 2009 H1N1 Vaccines During Influenza Season 2010-11
24. september 2014 opdateret af: Finnish Institute for Health and Welfare
A cohort of 3000 adults is followed to evaluate the effectiveness of the monovalent 2009 H1N1 vaccines used 2009-2010 and seasonal influenza vaccines used 2010-2011 in preventing the first laboratory-confirmed 2009 H1N1 influenza during the influenza season 2010-11.
Studieoversigt
Status
Afsluttet
Intervention / Behandling
Detaljeret beskrivelse
In the beginning of the study, changes in the background information collected in the original study (conducted 2009-2010) are asked with a questionnaire.
Information on influenza vaccinations is collected with vaccination cards and monthly short message service (SMS), and verified in registers, if needed.
If an epidemic caused by the 2009 H1N1 virus starts in Finland, the participants are asked to actively report symptoms of influenza like illnesses (ILI).
The symptoms are also monitored by weekly SMS.
In case of ILI, nasal and oral swabs are collected to verify the 2009 H1N1 influenza cases.
Paired serum samples are collected at the acute on convalescence phase of the disease.
The occurrence of laboratory-confirmed 2009 H1N1 influenza cases is compared between vaccinated and not (yet) vaccinated persons.
Undersøgelsestype
Observationel
Tilmelding (Faktiske)
2351
Kontakter og lokationer
Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.
Studiesteder
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-
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Tampere, Finland, 33520
- National Institute for Health and Welfare
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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 til 76 år (Voksen, Ældre voksen)
Tager imod sunde frivillige
Ja
Køn, der er berettiget til at studere
Alle
Prøveudtagningsmetode
Ikke-sandsynlighedsprøve
Studiebefolkning
Participation in the study will be offered to all participants of the cohort study "Evaluation of a vaccination campaign with A(H1N1)v pandemic vaccines: a prospective cohort study" AH1N1-483-09THL, who still live in the study area (city of Tampere) and who have complied to the SMS or phone follow-up.
The eligibility criteria of the original study AH1N1-483-09THL were: full legal competence; community-dwelling; age 18 to 75 years, written informed consent obtained; able to communicate fluently in Finnish or Swedish and able to adhere to all protocol required study procedures without any special burden or risk.
Originally, 3500 persons participated in the study
Beskrivelse
Inclusion criteria for the interview follow-up:
- Participating in the study "Evaluation of a vaccination campaign with A(H1N1)v pandemic vaccines: a prospective cohort study" (AH1N1-483-09THL)
- Assigned to use the services of Tampere health care centre;
- Written consent for the interview follow-up phase obtained by mail;
- Able to adhere to all protocol-required study procedures without any special burden or risk, as judged by the participant himself/herself
Inclusion criteria for the confirmation of 2009 H1N1 influenza cases:
- Participating in the study interview follow-up of the current study 'Evaluation the effectiveness of vaccination with 2009 H1N1 vaccines during influenza season 2010-11 (H1N1-495-10THL)
- Assigned to use the services of Tampere health care centre
- Written informed consent for the confirmation phase obtained at the first study visit
- Able to adhere to all protocol required study procedures without any special burden or risk, as judged by the investigator or designate
Exclusion criteria:
- No specific exclusion criteria will be applied
Studieplan
Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
Kohorter og interventioner
Gruppe / kohorte |
Intervention / Behandling |
|---|---|
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Vaccinated persons
The participants have taken one or more doses of 2009 H1N1 vaccine, either as a monovalent vaccine or as a part of a trivalent seasonal 2010-2011 influenza vaccine
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Questionnaires, interviews, nasal/oral and serum samples, register data
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Not (yet) vaccinated persons
The participants do not want to take any 2009 H1N1 vaccine or have not received any yet
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Questionnaires, interviews, nasal/oral and serum samples, register data
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Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Tidsramme |
|---|---|
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To determine the effectiveness of 2009 H1N1 influenza vaccination in preventing the first episode of laboratory-confirmed influenza caused by the 2009 H1N1 virus during the season 2010-11 among vaccinated adults as compared to unvaccinated adults
Tidsramme: September 2010 to April 2011
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September 2010 to April 2011
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Sekundære resultatmål
Resultatmål |
Tidsramme |
|---|---|
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To explore the ability of different vaccination regimens to prevent 2009 H1N1 influenza
Tidsramme: September 2010 to April 2011
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September 2010 to April 2011
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To explore the effectiveness of the 2009 H1N1 vaccines in subgroups stratified by age
Tidsramme: September 2010 to April 2011
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September 2010 to April 2011
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To evaluate the incidence, severity and possible complications of laboratory-confirmed infection with the 2009 H1N1 influenza virus
Tidsramme: September 2010 to April 2011
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September 2010 to April 2011
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Samarbejdspartnere og efterforskere
Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.
Efterforskere
- Ledende efterforsker: Terhi M Kilpi, MD, PhD, Finnish Institute for Health and Welfare
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
1. september 2010
Primær færdiggørelse (Faktiske)
1. april 2011
Studieafslutning (Faktiske)
1. september 2014
Datoer for studieregistrering
Først indsendt
20. september 2010
Først indsendt, der opfyldte QC-kriterier
20. september 2010
Først opslået (Skøn)
21. september 2010
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
25. september 2014
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
24. september 2014
Sidst verificeret
1. september 2014
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- H1N1-495-10THL
- 2010-021033-30 (EudraCT nummer)
- R10075M (Anden identifikator: The ethics committee of the Pirkanmaa Hospital District (PSHP))
- 81/2010 (Anden identifikator: Finnish Medicines Agency)
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 .