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Immunogenicity and Safety Study of a Single Prime-Boost Vaccination Schedule With a H5N1 Influenza Vaccine in Adults

7. oktober 2015 opdateret af: Ology Bioservices

An Open-Label Phase 1/2 Study to Assess the Immunogenicity and Safety of a Single Prime-Boost Vaccination Schedule With a Vero Cell-Derived Whole Virus H5N1 Influenza Vaccine in Healthy Volunteers Aged 18 to 59 Years

The main objective of the study is to assess the immune response to a non-adjuvanted H5N1 influenza vaccine in an adult population when administered according to a single prime-boost schedule.

Studieoversigt

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

231

Fase

  • Fase 2
  • Fase 1

Kontakter og lokationer

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

Studiesteder

      • Espoo, Finland, 02100
        • Espoon rokotetutkumusklinikka
      • Helsinki, Finland, 00100
        • Etelä - Helsingin rokotetutkimusklinikka
      • Vienna, Østrig, 1090
        • General Hospital of Vienna (AKH Wien), Dept. of Clinical Pharmacology

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 59 år (Voksen)

Tager imod sunde frivillige

Ja

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

Male and female subjects will be eligible for participation in this study if they:

  • are 18 to 59 years of age, inclusive, on the day of screening
  • have an understanding of the study and its procedures, agree to its provisions, and give written informed consent prior to study entry
  • are generally healthy, as determined by the investigator's clinical judgment through collection of medical history and performance of a physical examination
  • are physically and mentally capable of participating in the study and follow its procedures
  • agree to keep a daily record of symptoms for the duration of the study
  • if female of childbearing potential: have a negative urine pregnancy test result within 24 hours prior to the scheduled first vaccination and agree to employ adequate birth control measures for the duration of the study

Exclusion Criteria:

Subjects will be excluded from participation in this study if they:

  • have a history of exposure to H5N1 virus or a history of vaccination with an H5N1 influenza vaccine
  • are at high risk of contracting H5N1 influenza infection (e.g. poultry workers)
  • currently have or have a history of a significant neurological, cardiovascular, pulmonary (including asthma), hepatic, metabolic, rheumatic, autoimmune, hematological or renal disorder
  • have any inherited or acquired immunodeficiency
  • have a disease or are currently undergoing a form of treatment or were undergoing a form of treatment within 30 days prior to study entry that can be expected to influence immune response. Such treatment includes, but is not limited to, systemic or high dose inhaled (> 800µg/day of beclomethasone dipropionate or equivalent) corticosteroids, radiation treatment or other immunosuppressive or cytotoxic drugs
  • have a history of severe allergic reactions or anaphylaxis
  • have a rash, dermatological condition or tattoos which may interfere with injection site reaction rating
  • have received any blood products or immunoglobulins within 90 days prior to study entry
  • have donated blood or plasma within 30 days prior to study entry
  • have received any live vaccine within 4 weeks or inactivated vaccine within 2 weeks prior to vaccination in this study
  • have a functional or surgical asplenia
  • have a known or suspected problem with alcohol or drug abuse
  • were administered an investigational drug within 6 weeks prior to study entry or are concurrently participating in a clinical study that includes the administration of an investigational product
  • are a member of the team conducting this study or are in a dependent relationship with one of the study team members. Dependent relationships include close relatives (i.e., children, partner/spouse, siblings, parents) as well as employees of the investigator or site personnel conducting the study
  • if female: are pregnant or lactating

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: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: 1
Day 0: Single priming vaccination with Dose A of whole virion, Vero cell-derived influenza vaccine (Vietnam strain) - Day 360: Randomization to booster vaccination with Dose B of whole virion, Vero cell-derived influenza vaccine (Indonesia strain)
Dose A (Vietnam strain) for priming vaccination (Day 0) - Dose B (Indonesia strain) for booster vaccination (Day 360)
Dose A (Vietnam strain) for priming vaccination (Day 0) - Dose A (Indonesia strain) for booster vaccination (Day 360)
Eksperimentel: 2
Day 0: Single priming vaccination with Dose A of whole virion, Vero cell-derived influenza vaccine (Vietnam strain) - Day 360: Randomization to booster vaccination with Dose A of whole virion, Vero cell-derived influenza vaccine (Indonesia strain)
Dose A (Vietnam strain) for priming vaccination (Day 0) - Dose B (Indonesia strain) for booster vaccination (Day 360)
Dose A (Vietnam strain) for priming vaccination (Day 0) - Dose A (Indonesia strain) for booster vaccination (Day 360)

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Tidsramme
Number of subjects with antibody response to the vaccine strain associated with protection 21 days after the booster vaccination defined as titer measured by microneutralization test >= 1:20.
Tidsramme: 21 days
21 days

Sekundære resultatmål

Resultatmål
Tidsramme
Number of subjects with antibody response associated with protection 21, 42, 180 and 360 days after the priming vaccination and 21 days after the booster vaccination
Tidsramme: at the timepoints stated above
at the timepoints stated above

Samarbejdspartnere og efterforskere

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

Efterforskere

  • Studieleder: Gerald Aichinger, MD, Baxter Healthcare Corporation

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. maj 2009

Primær færdiggørelse (Faktiske)

1. oktober 2010

Studieafslutning (Faktiske)

1. juni 2011

Datoer for studieregistrering

Først indsendt

7. maj 2009

Først indsendt, der opfyldte QC-kriterier

7. maj 2009

Først opslået (Skøn)

8. maj 2009

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Skøn)

9. oktober 2015

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

7. oktober 2015

Sidst verificeret

1. juli 2011

Mere information

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 .

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