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A Study to Assess Immunogenicity Parameters After Vaccination Against Influenza and to Evaluate How These Parameters Change During the Influenza Season

19. februar 2013 opdateret af: Crucell Holland BV

A Phase IV, Open Label Study to Evaluate the Short and Long Term Immune Response and CROSS-protection After Vaccination With viroSOME Adjuvanted Inflexal V in Elderly Subjects

A study to evaluate the humoral immune response 3 weeks after vaccination with Inflexal V according to the CHMP criteria in elderly subjects for the 2011/2012 WHO recommended vaccine strains, to evaluate immunogenicity parameters 6 months after vaccination for the 3 vaccine strains and to assess the cross-protection against 4 selected circulating heterogeneous A/H1N1 influenza strains 3 weeks after influenza vaccination versus baseline.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

52

Fase

  • Fase 4

Kontakter og lokationer

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

Studiesteder

  • Italien
      • Genoa, Italien, 16100
        • Dept. of Health Sciences, University of Genoa and Hygiene Unit, "San Martino" University 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

60 år og ældre (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • Healthy female and male adults aged >60 years on the day of enrollment
  • Written informed consent
  • Females with confirmed menopause (postmenopausal is defined as 12 months with no menses without an alternative medical cause)

Exclusion Criteria:

  • Acute exacerbation of bronchopulmonary infection (cough, sputum, lung findings) or other acute disease
  • Acute febrile illness (≥38.0 °C)
  • Prior vaccination with an influenza vaccine for season 2011/2012
  • Known hypersensitivity to any vaccine component
  • Previous history of a serious adverse reaction to influenza vaccine
  • History of egg protein allergy or severe atopy
  • Known blood coagulation disorder
  • Chronic (longer than 14 days) administration of immunosuppressants or other immune-modifying drugs within 6 months before the first dose of the study vaccine, including oral corticosteroids in dosages of ≥0.5 mg/kg/day prednisolone or equivalent (inhaled or topical steroids are allowed)
  • Known immunodeficiency (including leukemia, HIV seropositivity) or cancer
  • Investigational medicinal product received in the past 3 months (90 days)
  • Treatment with immunoglobulins or blood transfusion(s) received in the past 3 months (90 days)
  • Participation in another clinical trial
  • Employee at the investigational site or relative of the investigator
  • Anticipated non-compliance with study procedures

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: Ikke-randomiseret
  • Interventionel model: Enkelt gruppeopgave
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Alle fag
Biologisk: Inflexal V

Inflexal V influenza vaccine, formulated for the WHO requirements ofr the 2011-2012 season, containing per 0.5 mL dose:

  • 15 µg hemagglutinin (HA) antigen of A/California/7/2009 (H1N1)-like virus
  • 15 µg HA antigen of A/Perth/16/2009 (H3N2)-like virus
  • 15 µg HA antigen of B/Brisbane/60/2008-like virus

Dose: intramuscular administration (M. deltoideus) of a single dose of 0.5 mL on Day 1

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Seroprotection
Tidsramme: 3 weeks after vaccination (Day 22 ± 2 days)
Seroprotection rate, defined as proportion of subjects with HI antibody titer ≥1:40 (The primary endpoints are the immunogenicity parameters for HA assessed via hemagglutinin inhibition method (HI). These parameters will be analyzed according to the EMA "Note for guidance on harmonisation of requirements for influenza vaccines," 1997)
3 weeks after vaccination (Day 22 ± 2 days)
Seroconversion
Tidsramme: 3 weeks after vaccination (Day 22 ± 2 days)
Seroconversion rate, defined as proportion of subjects with ≥4-fold increase in HI antibody titer and with a titer of ≥1:40 (The primary endpoints are the immunogenicity parameters for HA assessed via hemagglutinin inhibition method (HI). These parameters will be analyzed according to the EMA "Note for guidance on harmonisation of requirements for influenza vaccines," 1997)
3 weeks after vaccination (Day 22 ± 2 days)
Geometric Mean Titer
Tidsramme: 3 weeks after vaccination (Day 22 ± 2 days)
GMT of HI antibodies and fold-increase in GMT (The primary endpoints are the immunogenicity parameters for HA assessed via hemagglutinin inhibition method (HI). These parameters will be analyzed according to the EMA "Note for guidance on harmonisation of requirements for influenza vaccines," 1997)
3 weeks after vaccination (Day 22 ± 2 days)

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Geometric Mean Titer
Tidsramme: 6 months post-vaccination
GMT of HI antibodies and fold-increase in GMT (The primary endpoints are the immunogenicity parameters for HA assessed via hemagglutinin inhibition method (HI). These parameters will be analyzed according to the EMA "Note for guidance on harmonisation of requirements for influenza vaccines," 1997)
6 months post-vaccination
Seroprotection
Tidsramme: 6 months post-vaccination
Seroprotection rate, defined as proportion of subjects with HI antibody titer ≥1:40 (The primary endpoints are the immunogenicity parameters for HA assessed via hemagglutinin inhibition method (HI). These parameters will be analyzed according to the EMA "Note for guidance on harmonisation of requirements for influenza vaccines," 1997)
6 months post-vaccination
Seroconversion
Tidsramme: 6 months post-vaccination
Seroconversion rate, defined as proportion of subjects with ≥4-fold increase in HI antibody titer and with a titer of ≥1:40 (The primary endpoints are the immunogenicity parameters for HA assessed via hemagglutinin inhibition method (HI). These parameters will be analyzed according to the EMA "Note for guidance on harmonisation of requirements for influenza vaccines," 1997)
6 months post-vaccination

Samarbejdspartnere og efterforskere

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

Sponsor

Crucell Holland BV

Efterforskere

  • Ledende efterforsker: Giancarlo Icardi, MD, San Martino University Hospital

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. oktober 2011

Primær færdiggørelse (Faktiske)

1. august 2012

Studieafslutning (Faktiske)

1. august 2012

Datoer for studieregistrering

Først indsendt

20. oktober 2011

Først indsendt, der opfyldte QC-kriterier

20. oktober 2011

Først opslået (Skøn)

21. oktober 2011

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Skøn)

20. februar 2013

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

19. februar 2013

Sidst verificeret

1. februar 2013

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • INF-V-A007

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 Influenza

Kliniske forsøg med Inflexal V

Søg i lignende forsøg

Sponsorer og samarbejdspartnere

Medicinske tilstande

Narkotikainterventioner

CROs by country

CROs in Serbia

Betingelser

Sjældne sygdomme

Narkotikainterventioner

Kosttilskud

Sponsor / samarbejdspartnere

Placeringer

Abonner