Open-Label Study of H5 Vaccine in Participants of Protocol 04-077

This study has been completed.
Sponsor:
Information provided by:
National Institute of Allergy and Infectious Diseases (NIAID)
ClinicalTrials.gov Identifier:
NCT00402649
First received: November 21, 2006
Last updated: June 9, 2011
Last verified: May 2008
  Purpose

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.


Condition Intervention Phase
Influenza
Biological: Inactivated Influenza A/H5N1 Vaccine (sanofi pasteur)
Phase 1
Phase 2

Study Type: Interventional
Study Design: Allocation: Non-Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Prevention
Official Title: Open-Label Study of Intramuscular Inactivated Influenza A/H5N1 Vaccine in Healthy Children Aged 2 Years to 10 Years

Resource links provided by NLM:


Further study details as provided by National Institute of Allergy and Infectious Diseases (NIAID):

Primary Outcome Measures:
  • Occurrence of Solicited Adverse Events Among All Subjects [ Time Frame: Days 0-7 post each vaccination ] [ Designated as safety issue: Yes ]
    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.

  • Occurrence of the Solicited Adverse Event of Body Aches, Solicited Only From Children Age 6-10 [ Time Frame: Days 0-7 post each vaccination ] [ Designated as safety issue: Yes ]
    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.

  • Occurrence of Unsolicited Adverse Events [ Time Frame: Through Day 28 after second vaccination ] [ Designated as safety issue: Yes ]
    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.

  • Occurrence of Serious Adverse Events [ Time Frame: 6 months after the first vaccination ] [ Designated as safety issue: Yes ]
    Number of subjects with Serious Adverse Events during the 6 months after the first vaccination.


Secondary Outcome Measures:
  • Number of Participants With Serum Hemagglutination Inhibition (HAI) Antibody Titers of 1:40 or Greater [ Time Frame: Day 28 after second vaccination ] [ Designated as safety issue: No ]
    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.

  • Geometric Mean Titer of Hemagglutination Inhibition Antibody Titers [ Time Frame: Day 28 after second vaccination ] [ Designated as safety issue: No ]
    Geometric mean titer of hemagglutination inhibition antibody titers after receipt of two doses of vaccine.

  • Number of Participants With a Four-fold or Greater Increase in Hemagglutination Inhibition Antibody Titers [ Time Frame: Day 28 after second vaccination ] [ Designated as safety issue: No ]
    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.


Enrollment: 35
Study Start Date: February 2007
Study Completion Date: December 2007
Primary Completion Date: October 2007 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: 1
All subjects will receive at least 2 and up to 3 doses of the vaccine approximately 28 days apart.
Biological: Inactivated Influenza A/H5N1 Vaccine (sanofi pasteur)
Inactivated influenza A/H5N1 vaccine administered via intramuscular (IM) injection; dosage 45-mcg.

Detailed Description:

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.

  Eligibility

Ages Eligible for Study:   2 Years to 10 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   Yes
Criteria

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).
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT00402649

Locations
United States, California
UCLA Center For Vaccine Research
Torrance, California, United States, 90502
United States, Maryland
University of Maryland Baltimore
Baltimore, Maryland, United States, 21201
United States, Missouri
Saint Louis University
St. Louis, Missouri, United States, 63104
Sponsors and Collaborators
  More Information

No publications provided

Responsible Party: Director, ORA, HHS/NIAID/DMID
ClinicalTrials.gov Identifier: NCT00402649     History of Changes
Other Study ID Numbers: 06-0072
Study First Received: November 21, 2006
Results First Received: October 16, 2008
Last Updated: June 9, 2011
Health Authority: United States: Institutional Review Board
United States: Food and Drug Administration
United States: Federal Government

Keywords provided by National Institute of Allergy and Infectious Diseases (NIAID):
influenza, A/H5N1, avian influenza, vaccine

Additional relevant MeSH terms:
Influenza, Human
Orthomyxoviridae Infections
RNA Virus Infections
Virus Diseases
Respiratory Tract Infections
Respiratory Tract Diseases

ClinicalTrials.gov processed this record on July 22, 2014