- ICH GCP
- Registr klinických studií v USA
- Klinická studie NCT00402649
Open-Label Study of H5 Vaccine in Participants of Protocol 04-077
9. června 2011 aktualizováno: National Institute of Allergy and Infectious Diseases (NIAID)
Open-Label Study of Intramuscular Inactivated Influenza A/H5N1 Vaccine in Healthy Children Aged 2 Years to 10 Years
This study may provide safety information on a flu vaccine given to children and may provide immunogenicity information to add to what was collected in a previous flu vaccine study.
Participants will include 55 healthy children, ages 2-10, who participated in 04-077 and received a placebo injection instead of the flu vaccine or were incompletely immunized.
The study has 2 purposes: to make sure there are no serious side effects in children and to see how the immune systems react to the vaccine.
Study procedures include up to 4 study visits, up to 9 follow-up phone calls, 2 blood samples to be collected during visits 1 and 3, and up to 3 vaccine injections in the arm or thigh muscle.
Parents will be given a memory aid card to record side effects, temperatures, and medications.
Parents will have the option for the child to receive a 3rd dose of vaccine if offered, at month 6.
This booster shot will require a 6-month visit and participation for an additional 6 months.
Přehled studie
Postavení
Dokončeno
Podmínky
Intervence / Léčba
Detailní popis
The recent emergence of novel influenza virus strains in human populations has encouraged efforts to develop vaccines for a potential pandemic.
The objectives of this study are to evaluate the safety of intramuscular (IM) subvirion inactivated H5N1 vaccine in healthy children aged 2 through 10 years and to determine the immunogenicity profile of IM subvirion inactivated H5N1 vaccine in healthy children approximately 1 month following receipt of the second of 2 doses of vaccine.
Study endpoints include: adverse event (AE) and serious adverse event (SAE) information (solicited in-clinic and via memory aids, concomitant medications, and periodic targeted physical assessments, as indicated); proportion of subjects achieving a serum hemagglutination inhibition antibody titer of 1:40 against the influenza A/H5N1 virus 28 days after receipt of second dose of vaccine (approximately Day 56); geometric mean titer and the frequency of 4-fold or greater increases in hemagglutination inhibition antibody titers 28 days after receipt of second dose of vaccine (approximately Day 56); and development of serum antibody responses against antigenically drifted variants of influenza H5N1 virus.
This study is linked to DMID protocol 06-0072.
Up to 55 healthy children, aged 2 through 10 years, who previously participated in DMID 04-077, will be eligible for enrollment in this multimember, open-label, phase I/II clinical trial to receive at least 2 and up to 3 doses of an inactivated influenza A/H5N1 vaccine at a 45-micrograms dose.
The vaccine dosage level that will be used in this study was chosen based upon safety and immunogenicity data collected previously in adults and children.
The injection volume of the 90-micrograms dose is 1 mL for the vaccine being used in this study, but this is considered unacceptable in this age group.
Therefore, the 45-micrograms dose (0.5 ml volume) has been selected.
Twenty three subjects who were previously enrolled and assigned to placebo in the DMID 04-077 study (A Randomized, Double-Blinded, Placebo-Controlled, Phase I/II, Study of the Safety, Reactogenicity, and Immunogenicity of Intramuscular Inactivated Influenza A/H5N1 Vaccine in Healthy Children Aged 2 Years Through 9 Years) along with up to 32 subjects from a single site who were incompletely immunized are eligible for enrollment in this study.
Vaccine will be administered into the deltoid or (if age appropriate) thigh muscle.
All subjects will receive 2 doses of the vaccine approximately 28 days apart.
At month 6, subjects' parent(s) or guardian(s) will be called to assess the subjects for serious adverse events.
Blood collection for immunogenicity studies will be at the discretion of the parent(s) or legal guardian(s).
Should data evaluating a third dose of the influenza A/H5N1 vaccine show enhanced immunogenicity in pediatric subjects participating in DMID 04-077, parents/guardians of subjects who received vaccine will be offered the possibility of a third dose for their participating children.
Typ studie
Intervenční
Zápis (Aktuální)
35
Fáze
- Fáze 2
- Fáze 1
Kontakty a umístění
Tato část poskytuje kontaktní údaje pro ty, kteří studii provádějí, a informace o tom, kde se tato studie provádí.
Studijní místa
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California
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Torrance, California, Spojené státy, 90502
- UCLA Center for Vaccine Research
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Maryland
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Baltimore, Maryland, Spojené státy, 21201
- University of Maryland Baltimore
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Missouri
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St. Louis, Missouri, Spojené státy, 63104
- Saint Louis University
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Kritéria účasti
Výzkumníci hledají lidi, kteří odpovídají určitému popisu, kterému se říká kritéria způsobilosti. Některé příklady těchto kritérií jsou celkový zdravotní stav osoby nebo předchozí léčba.
Kritéria způsobilosti
Věk způsobilý ke studiu
2 roky až 10 let (Dítě)
Přijímá zdravé dobrovolníky
Ne
Pohlaví způsobilá ke studiu
Všechno
Popis
Inclusion Criteria:
- The subject must be male or female, aged 2 through 10 years at enrollment, and must have participated in protocol 04-077 as a placebo recipient or a subject at the UCLA site.
- The subject must be in good health (and not on any chronic medications), as determined by medical history and a history-directed targeted physical examination.
- Parents or guardians of the subject must be able to understand and comply with planned study procedures and be available for all study visits.
- Parents or guardians of the subject must provide written consent prior to initiation of any study procedures, and subject may provide written assent as appropriate.
Exclusion Criteria:
- The subject must not have a known allergy to eggs or other components of the vaccine or sensitivity or allergy to latex.
- The subject must not have a history of asthma or recurrent wheezing.
- The subject must not be undergoing immunosuppression as a result of an underlying illness or treatment.
- The subject must not have an active neoplastic disease or a history of any hematologic malignancy.
- The subject must not be using oral or parenteral steroids, inhaled steroids, or other immunosuppressive or cytotoxic drugs. Note: Subjects on nasal or topical steroids will be allowed to enroll in this study.
- The subject must not have a history of receiving immunoglobulin or other blood product within the 3 months prior to enrollment in this study.
- The subject must not receive any other inactivated vaccines within 2 weeks before or after any study vaccine or any other live vaccines within 4 weeks before or after any study vaccine in this study.
- The subject must not have an acute or chronic medical condition that, in the opinion of the investigator, would render vaccination unsafe or would interfere with the evaluation of responses (these conditions include, but are not limited to, known chronic liver disease, significant renal disease, unstable or progressive neurological disorders, diabetes mellitus, and transplant recipients).
- The subject must not have a history of severe reactions following immunization with contemporary influenza virus vaccines.
- The subject must not have an acute illness, including an axillary temperature greater than or equal to 100 degrees F or an oral temperature greater than or equal to 101 degrees F within 3 days prior to vaccination.
- The subject must not have received an experimental vaccine or medication within 1 month prior to enrollment in this study, or expect to receive an experimental vaccine, medication, or blood product during the 13-month study period.
- The subject must not have any condition that would, in the opinion of the investigator, place them at an unacceptable risk of injury or render the subject unable to meet the requirements of the protocol.
- The subject must not have a history of Guillain-Barré syndrome.
- The subject must not be participating concurrently in another clinical trial aside from DMID 04-077 (either in active phase or in follow-up phase).
Studijní plán
Tato část poskytuje podrobnosti o studijním plánu, včetně toho, jak je studie navržena a co studie měří.
Jak je studie koncipována?
Detaily designu
- Primární účel: Prevence
- Přidělení: Nerandomizované
- Intervenční model: Přiřazení jedné skupiny
- Maskování: Žádné (otevřený štítek)
Zbraně a zásahy
Skupina účastníků / Arm |
Intervence / Léčba |
---|---|
Experimentální: 1
All subjects will receive at least 2 and up to 3 doses of the vaccine approximately 28 days apart.
|
Inactivated influenza A/H5N1 vaccine administered via intramuscular (IM) injection; dosage 45-mcg.
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Co je měření studie?
Primární výstupní opatření
Měření výsledku |
Popis opatření |
Časové okno |
---|---|---|
Occurrence of Solicited Adverse Events Among All Subjects
Časové okno: Days 0-7 post each vaccination
|
Number of subjects reporting solicited Adverse Events collected on Memory Aid for Days 0-7 post each vaccination for all subjects (systematic assessment), for any and severe severities.
|
Days 0-7 post each vaccination
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Occurrence of the Solicited Adverse Event of Body Aches, Solicited Only From Children Age 6-10
Časové okno: Days 0-7 post each vaccination
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Number of subjects reporting solicited Adverse Event of Body Aches, collected on Memory Aid for Days 0-7 post each vaccination for children age 6-10 only (systematic assessment), of any and severe severities.
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Days 0-7 post each vaccination
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Occurrence of Unsolicited Adverse Events
Časové okno: Through Day 28 after second vaccination
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Number of subjects with spontaneous reports of Adverse Events of any and severe severities.
Events reported by more than 5.6% of subjects in any group are reported by MedDRA Preferred Term.
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Through Day 28 after second vaccination
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Occurrence of Serious Adverse Events
Časové okno: 6 months after the first vaccination
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Number of subjects with Serious Adverse Events during the 6 months after the first vaccination.
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6 months after the first vaccination
|
Sekundární výstupní opatření
Měření výsledku |
Popis opatření |
Časové okno |
---|---|---|
Number of Participants With Serum Hemagglutination Inhibition (HAI) Antibody Titers of 1:40 or Greater
Časové okno: Day 28 after second vaccination
|
Number of subjects achieving serum hemagglutination inhibition antibody titer of 1:40 or greater against the influenza A/H5N1 virus after receipt of two doses of vaccine.
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Day 28 after second vaccination
|
Geometric Mean Titer of Hemagglutination Inhibition Antibody Titers
Časové okno: Day 28 after second vaccination
|
Geometric mean titer of hemagglutination inhibition antibody titers after receipt of two doses of vaccine.
|
Day 28 after second vaccination
|
Number of Participants With a Four-fold or Greater Increase in Hemagglutination Inhibition Antibody Titers
Časové okno: Day 28 after second vaccination
|
Number of subjects with a 4-fold or greater increase, relative to baseline, in hemagglutination inhibition antibody titers after receipt of two doses of vaccine.
|
Day 28 after second vaccination
|
Spolupracovníci a vyšetřovatelé
Zde najdete lidi a organizace zapojené do této studie.
Termíny studijních záznamů
Tato data sledují průběh záznamů studie a předkládání souhrnných výsledků na ClinicalTrials.gov. Záznamy ze studií a hlášené výsledky jsou před zveřejněním na veřejné webové stránce přezkoumány Národní lékařskou knihovnou (NLM), aby se ujistily, že splňují specifické standardy kontroly kvality.
Hlavní termíny studia
Začátek studia
1. února 2007
Primární dokončení (Aktuální)
1. října 2007
Dokončení studie (Aktuální)
1. prosince 2007
Termíny zápisu do studia
První předloženo
21. listopadu 2006
První předloženo, které splnilo kritéria kontroly kvality
21. listopadu 2006
První zveřejněno (Odhad)
22. listopadu 2006
Aktualizace studijních záznamů
Poslední zveřejněná aktualizace (Odhad)
13. června 2011
Odeslaná poslední aktualizace, která splnila kritéria kontroly kvality
9. června 2011
Naposledy ověřeno
1. května 2008
Více informací
Termíny související s touto studií
Klíčová slova
Další relevantní podmínky MeSH
Další identifikační čísla studie
- 06-0072
Tyto informace byly beze změn načteny přímo z webu clinicaltrials.gov. Máte-li jakékoli požadavky na změnu, odstranění nebo aktualizaci podrobností studie, kontaktujte prosím register@clinicaltrials.gov. Jakmile bude změna implementována na clinicaltrials.gov, bude automaticky aktualizována i na našem webu .