Influenza, Human Clinical Trial
Official title:
Exploratory Evaluation of Host Biomarkers That Predict the Vaccine Virus Replication and Immunogenicity of Seasonal and Pandemic Formulations of Live Attenuated Influenza A Virus Vaccines Based on the A/Ann Arbor/6/60 ca Master Donor Virus (MDV)
This study seeks to understand the host factors that affect the replication and immune response of seasonal and candidate pandemic live attenuated influenza vaccine (LAIV) in humans and to develop biomarkers that can predict the viral shedding and immune response to LAIVs.
Status | Completed |
Enrollment | 36 |
Est. completion date | June 2013 |
Est. primary completion date | June 2013 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | Both |
Age group | 18 Years to 42 Years |
Eligibility |
Inclusion Criteria: - General good health, without significant medical illness, physical examination findings, or significant laboratory abnormalities as determined by the investigator - Agree to storage of blood specimens for future research - Available for the duration of the trial. For the inpatient component of the study, participants must be willing and able to remain within the Isolation Unit for the specified duration of confinement. For the outpatient component of the study, participants must be willing and able to make daily outpatient follow-up visits as specified by the protocol. - Willingness to participate in the study as evidenced by signing the informed consent document - Female participants must agree to use effective birth control methods for the duration of the study (for example, pharmacologic contraceptives including oral, parenteral, and transcutaneous delivery; condoms with spermicide; diaphragm with spermicide; intrauterine device; abstinence from heterosexual intercourse; or surgical sterilization). All female participants will be considered being of child-bearing potential except those who have undergone hysterectomy and those in whom menopause occurred at least 1 year prior to the study. Exclusion Criteria: - Pregnancy as determined by a positive human choriogonadotropin (beta-HCG) test - Currently breastfeeding - Evidence of clinically significant neurologic, cardiac, pulmonary, hepatic, rheumatologic, autoimmune, or renal disease by history, physical examination, and/or laboratory studies including urine testing. Clinically significant alanine aminotransferase (ALT) levels, as determined by the Principal Investigator, will be exclusionary at baseline, prior to vaccination. - Behavioral or cognitive impairment or psychiatric disease that in the opinion of the investigator affects the ability of the subject to understand and cooperate with the study protocol - Previous enrollment in an H2 or H9 influenza vaccine trial or in any study of an avian influenza vaccine - For the inpatient arm, seropositive to the H2N3 influenza A virus or the H9N2 influenza A virus (serum HAI titer >1:8). For the outpatient arm, seropositive to the H3N2 component of seasonal LAIV (serum hemagglutination inhibition [HAI] titer greater than 1:8). - Positive urine drug toxicology test indicating narcotic use/dependency - Have medical, occupational, or family problems as a result of alcohol or illicit drug use during the past 12 months - Other condition that in the opinion of the investigator would jeopardize the safety or rights of a participant participating in the trial or would render the subject unable to comply with the protocol - History of anaphylaxis - Allergy to oseltamivir as determined by subject report - Current diagnosis of asthma or reactive airway disease (within the past 2 years) - History of Guillain-Barré Syndrome - Positive ELISA and confirmatory Western blot tests for human immunodeficiency virus-1 (HIV-1) - Positive ELISA and confirmatory test (e.g., recombinant immunoblot assay) for hepatitis C virus (HCV) - Positive hepatitis B virus surface antigen (HBsAg) by ELISA - Known immunodeficiency syndrome - Use of corticosteroids (excluding topical preparations) or immunosuppressive drugs within 30 days prior to vaccination - Receipt of a live vaccine within 4 weeks or a killed vaccine within 2 weeks prior to study vaccination - History of a surgical splenectomy - Receipt of blood or blood-derived products (including immunoglobulin) within 6 months prior to study vaccination - Current smoker unwilling to stop smoking for the duration of the study - A current smoker includes anyone stating he/she currently smokes any amount of a tobacco product - The decision to exclude a potential participant is determined by medical history and a clinician's clinical judgment based on the physical examination - After admission to the unit, nicotine patches will be provided to current smokers who request them for the inpatient portion of the study - Travel to the Southern Hemisphere within 14 days prior to study vaccination - Travel on a cruise ship within 14 days prior to study vaccination - Receipt of another investigational vaccine or drug within 30 days prior to study vaccination - Allergy to eggs or egg products |
Allocation: Randomized, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator), Primary Purpose: Basic Science
Country | Name | City | State |
---|---|---|---|
United States | University of Rochester Medical Center: Facility for Evaluation of Flu Vaccines | Rochester | New York |
Lead Sponsor | Collaborator |
---|---|
National Institute of Allergy and Infectious Diseases (NIAID) | University of Rochester |
United States,
Belshe RB. Current status of live attenuated influenza virus vaccine in the US. Virus Res. 2004 Jul;103(1-2):177-85. Review. — View Citation
Karron RA, Callahan K, Luke C, Thumar B, McAuliffe J, Schappell E, Joseph T, Coelingh K, Jin H, Kemble G, Murphy BR, Subbarao K. A live attenuated H9N2 influenza vaccine is well tolerated and immunogenic in healthy adults. J Infect Dis. 2009 Mar 1;199(5):711-6. doi: 10.1086/596558. — View Citation
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Area under the curve (AUC) of nasal virus shedding after vaccine dose as assessed by liquid titration of nasal secretions on Madin Darby Canine Kidney (MDCK) cells | Measured through Day 9 | No | |
Primary | Development of serum antibody as assessed by either HAI or microneutralization (MN) assays | Measured through Day 56 | No | |
Secondary | Development of a significant increase in nasal secretion hemagglutinin (HA)-specific antibody assessed by enzyme-linked immunosorbent assay (ELISA) | Measured through Day 56 | No | |
Secondary | Detection of influenza-specific immunoglobulin G (IgG) or immunoglobulin A (IgA) secreting B cells assessed by antibody secreting cells (ASC) assay | Measured at Day 7 | No | |
Secondary | Development of greater than 200 influenza-specific interferon-gamma-secreting cells per million lymphocytes as assessed by enzyme-linked immunospot assay (ELISPOT) | Measured at Day 28 | No |
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