Influenza
Conditions
Keywords
interferon, vaccine, influenza
Brief summary
Influenza is a virus infection that causes sickness from the nose to the lungs. It is thought that type 1 interferon (a protein that helps the immune system fight viruses) will make flu vaccines more effective. This study will determine if type 1 interferon added to a specific flu vaccine will help the immune system of healthy adults fight off infection better than vaccine alone. Ninety volunteers, ages 18-40, will participate in this study. They will attend 3 study visits and have a final follow-up study visit, email, or phone call about six months after the vaccination. Volunteers will receive a single dose of study vaccine sprayed into the nose. Study procedures including blood samples and nasal washes (the inside of the nose is washed out) will be collected to evaluate immune system responses.
Detailed description
Influenza is primarily a virus infection of the respiratory tract mucosa from the nose to the terminal bronchioles. Immunity to influenza virus infection is mediated primarily by antibody in respiratory secretions at the mucosal surface. To meet the need for improved inactivated vaccines, one potential approach is to increase the frequency and magnitude of antibody in secretions by administering inactivated influenza virus vaccine (IVV) intranasally and to optimize responses by including a mucosal adjuvant. The primary hypothesis of this study is that Type 1 interferon (IFN) will provide an adjuvant effect at the respiratory mucosal surface for production of IgA and/or IgG antibody to the influenza strains when added to IVV and administered intranasally. The primary objective of the study is to determine whether including type 1 IFN with IVV, administered intranasally, to healthy adults will enhance antibody responses in nasal secretions compared to intranasal administration of IVV alone. This is a single-center, randomized, double-blind, clinical trial to determine if type 1 IFN will act as a mucosal adjuvant for antibody responses to influenza viruses after administration with IVV intranasally. Subjects will be healthy adults between the ages of 18 and 40. The study will enroll 30 subjects in each of three groups, a group given 0.6 ml of IVV, a group given 0.6 ml of IVV containing 1M units of IFN and a group given 0.7 ml of IVV containing 10M units of IFN. The vaccine or vaccine/interferon combination will be administered to the subjects intranasally once. Blood and nasal secretions will be obtained before vaccination and again two and four weeks after immunization. Each subject will be asked to complete a memory aid for seven days and to report any unexpected adverse events (AEs) to study personnel. The subject will report to the clinic or be contacted by phone or e-mail at six months after vaccination regarding occurrence of any unreported serious adverse events (SAEs). The three nasal secretions will be used for testing for IgA and IgG antibody to the A/H1N1 and A/H3N2 HA in enzyme-linked immunosorbent assay (ELISA) tests. The three blood samples will be tested in HAI and neutralization tests for antibody to the A/H1N1 and A/H3N2 vaccine antigens.
Interventions
BIOLOGICALTrivalent inactivated influenza virus vaccine (2006-2007 formulation)
Commercially available trivalent inactivated influenza virus vaccine without or with 1 of 2 dosages of commercially available type 1 interferon administered once by nasal instillation. Dosages: 0.6 ml of IVV or 0.7 ml of IVV.
BIOLOGICALType 1 interferon
Commercially available lyophilized IFN; dosages 1 M unit (Mu) of IFN; 10 M units (Mu) of IFN.
Sponsors
National Institute of Allergy and Infectious Diseases (NIAID)
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
DOUBLE (Subject, Investigator)
Eligibility
Sex/Gender
ALL
Age
18 Years to 40 Years
Healthy volunteers
Yes
Inclusion criteria
* Male or non-pregnant female (as indicated by a negative urine pregnancy test immediately prior to vaccine administration) between the ages of 18 and 40 years. * Women of childbearing potential who are at risk of becoming pregnant must agree to practice adequate contraception (e.g., barrier method, abstinence, and licensed hormonal methods) for at least 3 months after immunization. * Is in good health, as determined by vital signs (heart rate, blood pressure, oral temperature), medical history and a targeted physical examination based on medical history. * Able to understand and comply with planned study procedures. * Provides informed consent prior to any study procedures and is available for all study visits.
Exclusion criteria
* Has a known allergy to eggs, chicken protein or other components of the vaccine. * Has a positive urine pregnancy test prior to vaccination (if female of childbearing potential), is lactating, or has the intention to become pregnant within 3 months of receipt of vaccine. * Is undergoing immunosuppression as a result of an underlying illness or treatment. * Has an active neoplastic disease or a history of any hematologic malignancy. * Is using oral or parenteral steroids or other immunosuppressive or cytotoxic drugs. * Has used any nasal or aerosol treatments in the past 2 weeks or likely to use any in the next 2 weeks. * Has a diagnosis of hay fever or asthma. * Has a history of receiving immunoglobulin or other blood product within the 3 months prior to enrollment in this study. * Has a diagnosis of schizophrenia, bipolar disease or other major psychiatric diagnosis. * Has received any other licensed vaccines within 2 weeks (for inactivated vaccines) or 4 weeks (for live vaccines) prior to enrollment in this study. * Has 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 (this includes, but is not limited to: known chronic liver disease, significant renal disease, unstable or progressive neurological disorders, diabetes mellitus, and transplant recipients). * Has a history of severe reactions following immunization with contemporary influenza virus vaccines. * Has an acute illness, including an oral temperature greater than 100.4 degrees F, within 1 week prior to vaccination. * Received an experimental agent (vaccine, drug, biologic, device, blood product, or medication) within 1 month prior to vaccination in the study, or expects to receive an experimental agent during the 6-month study period. * Is planning to enroll in another clinical trial at any time during the study period. * Has known active human immunodeficiency virus, hepatitis B or hepatitis C infection. * Has a history of alcohol or drug abuse in the last 5 years. * Has a history of Guillain-Barre syndrome. * Has received the 2006-2007 formulation influenza vaccine by injection or by nose drops (fall of 2006 or since). * Has any condition that would, in the opinion of the site investigator, place the subject at an unacceptable risk of injury or render the subject unable to meet the requirements of the protocol.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Antibody Responses in Nasal Secretions to Influenza A/H1N1 and A/H3N2 at 14 Days After Intranasal Immunization. | 14 days after immunization. | Number of subjects (frequency) responding with a four-fold or greater increase (magnitude) in titer at day 14 after immunization, relative to pre-immunization levels |
| Antibody Responses in Nasal Secretions to Influenza A/H1N1 and A/H3N2 at 28 Days After Intranasal Immunization | 28 days after immunization. | Number of subjects (frequency) responding with a four-fold or greater increase (magnitude) in titer at day 28 after immunization, relative to pre-immunization levels. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Serum Antibody Responses (Hemagglutination Inhibition (HAI) and Neutralization) to Influenza A/H1N1 and A/H3N2 at 14 Days After Intranasal Immunization. | 14 days after immunization. | Number of subjects (frequency) responding with a four-fold or greater increase (magnitude) in titer at 14 days after immunization, relative to pre-immunization levels. |
| Serum Antibody Responses (Hemagglutination Inhibition (HAI) and Neutralization) to Influenza A/H1N1 and A/H3N2 at 28 Days After Intranasal Immunization. | 28 days after immunization | Number of subjects (frequency) responding with a four-fold or greater increase (magnitude) in titer at 28 days after immunization, relative to pre-immunization levels. |
| Unsolicited Adverse Events After Intranasal Immunization | Non-serious AEs are collected through 28 days after vaccination. Serious AEs are collected through 180 days after vaccination. | Number of subjects (frequency) with spontaneous reports of Adverse Events of any severity and severe or higher severity, during the 28 days after vaccination regardless of relatedness. Events reported by more than 5.6% of subjects in any group are reported by MedDRA Preferred Term. |
| Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | 0-7 days following immunization | Number of participants (frequency) reporting solicited (systematically collected on a Memory Aid) reactogenicity events of any severity and number reporting severe occurrences. |
Other
| Measure | Time frame | Description |
|---|---|---|
| Serum Antibody Responses (Hemagglutination Inhibition (HAI) and Neutralization) to Influenza B at 14 Days After Intranasal Immunization. | 14 days after immunization | Number of subjects (frequency) responding with a four-fold or greater increase (magnitude) in titer at 14 days after immunization, relative to pre-immunization levels. |
| Serum Antibody Responses (Hemagglutination Inhibition (HAI) and Neutralization) to Influenza B at 28 Days After Intranasal Immunization. | 28 days after immunization | Number of subjects (frequency) responding with a four-fold or greater increase (magnitude) in titer at 28 days after immunization, relative to pre-immunization levels. |
Countries
United States
Participant flow
Recruitment details
Healthy ambulatory adults were recruited from the surrounding community of the research clinic from March 16, 2007 through March 21, 2007.
Participants by arm
| Arm | Count |
|---|---|
| IVV With 1M IFN IVV (inactivated influenza virus vaccine) plus 1 Molar unit of IFN (Interferon): 0.6ml of the mixture will be given \[0.5 ml of vaccine plus 0.1 ml (1 Molar unit) of IFN\]. | 32 |
| IVV Without IFN IVV only: 0.6 ml of IVV alone (0.5 ml of vaccine plus 0.1 ml of saline). | 32 |
| IVV With 10M IFN IVV plus 10 Molar units of IFN: 0.7 ml of the mixture will be given \[0.5 ml of vaccine plus 0.2 ml (10 Molar units) of IFN\]. | 31 |
| Total | 95 |
Baseline characteristics
| Characteristic | IVV Without IFN | IVV With 10M IFN | IVV With 1M IFN | Total |
|---|---|---|---|---|
| Age, Categorical <=18 years | 1 Participants | 0 Participants | 0 Participants | 1 Participants |
| Age, Categorical >=65 years | 0 Participants | 0 Participants | 0 Participants | 0 Participants |
| Age, Categorical Between 18 and 65 years | 31 Participants | 31 Participants | 32 Participants | 94 Participants |
| Age Continuous | 25.2 years STANDARD_DEVIATION 4.8 | 24.7 years STANDARD_DEVIATION 4.9 | 25.3 years STANDARD_DEVIATION 5.2 | 25.1 years STANDARD_DEVIATION 4.9 |
| Region of Enrollment United States | 32 participants | 31 participants | 32 participants | 95 participants |
| Sex: Female, Male Female | 18 Participants | 23 Participants | 22 Participants | 63 Participants |
| Sex: Female, Male Male | 14 Participants | 8 Participants | 10 Participants | 32 Participants |
Adverse events
| Event type | EG000 affected / at risk | EG001 affected / at risk | EG002 affected / at risk |
|---|---|---|---|
| deaths Total, all-cause mortality | — / — | — / — | — / — |
| other Total, other adverse events | 29 / 32 | 29 / 32 | 26 / 31 |
| serious Total, serious adverse events | 0 / 32 | 0 / 32 | 0 / 31 |
Outcome results
Primary
Antibody Responses in Nasal Secretions to Influenza A/H1N1 and A/H3N2 at 14 Days After Intranasal Immunization.
Number of subjects (frequency) responding with a four-fold or greater increase (magnitude) in titer at day 14 after immunization, relative to pre-immunization levels
Time frame: 14 days after immunization.
| Arm | Measure | Group | Value (NUMBER) |
|---|---|---|---|
| IVV With 1M IFN | Antibody Responses in Nasal Secretions to Influenza A/H1N1 and A/H3N2 at 14 Days After Intranasal Immunization. | IgG to A/New Caledonia/20/99 at Day 14 | 3 Participants |
| IVV With 1M IFN | Antibody Responses in Nasal Secretions to Influenza A/H1N1 and A/H3N2 at 14 Days After Intranasal Immunization. | IgA to A/New Caledonia/20/99 at Day 14 | 0 Participants |
| IVV With 1M IFN | Antibody Responses in Nasal Secretions to Influenza A/H1N1 and A/H3N2 at 14 Days After Intranasal Immunization. | IgG to A/Wisconsin/67/2005 at Day 14 | 2 Participants |
| IVV With 1M IFN | Antibody Responses in Nasal Secretions to Influenza A/H1N1 and A/H3N2 at 14 Days After Intranasal Immunization. | IgA to A/Wisconsin/67/2005 at Day 14 | 3 Participants |
| IVV Without IFN | Antibody Responses in Nasal Secretions to Influenza A/H1N1 and A/H3N2 at 14 Days After Intranasal Immunization. | IgA to A/Wisconsin/67/2005 at Day 14 | 1 Participants |
| IVV Without IFN | Antibody Responses in Nasal Secretions to Influenza A/H1N1 and A/H3N2 at 14 Days After Intranasal Immunization. | IgG to A/New Caledonia/20/99 at Day 14 | 3 Participants |
| IVV Without IFN | Antibody Responses in Nasal Secretions to Influenza A/H1N1 and A/H3N2 at 14 Days After Intranasal Immunization. | IgG to A/Wisconsin/67/2005 at Day 14 | 3 Participants |
| IVV Without IFN | Antibody Responses in Nasal Secretions to Influenza A/H1N1 and A/H3N2 at 14 Days After Intranasal Immunization. | IgA to A/New Caledonia/20/99 at Day 14 | 2 Participants |
| IVV With 10M IFN | Antibody Responses in Nasal Secretions to Influenza A/H1N1 and A/H3N2 at 14 Days After Intranasal Immunization. | IgA to A/Wisconsin/67/2005 at Day 14 | 6 Participants |
| IVV With 10M IFN | Antibody Responses in Nasal Secretions to Influenza A/H1N1 and A/H3N2 at 14 Days After Intranasal Immunization. | IgA to A/New Caledonia/20/99 at Day 14 | 1 Participants |
| IVV With 10M IFN | Antibody Responses in Nasal Secretions to Influenza A/H1N1 and A/H3N2 at 14 Days After Intranasal Immunization. | IgG to A/Wisconsin/67/2005 at Day 14 | 4 Participants |
| IVV With 10M IFN | Antibody Responses in Nasal Secretions to Influenza A/H1N1 and A/H3N2 at 14 Days After Intranasal Immunization. | IgG to A/New Caledonia/20/99 at Day 14 | 5 Participants |
Primary
Antibody Responses in Nasal Secretions to Influenza A/H1N1 and A/H3N2 at 28 Days After Intranasal Immunization
Number of subjects (frequency) responding with a four-fold or greater increase (magnitude) in titer at day 28 after immunization, relative to pre-immunization levels.
Time frame: 28 days after immunization.
| Arm | Measure | Group | Value (NUMBER) |
|---|---|---|---|
| IVV With 1M IFN | Antibody Responses in Nasal Secretions to Influenza A/H1N1 and A/H3N2 at 28 Days After Intranasal Immunization | IgG to A/New Caledonia/20/99 at Day 28 | 1 Participants |
| IVV With 1M IFN | Antibody Responses in Nasal Secretions to Influenza A/H1N1 and A/H3N2 at 28 Days After Intranasal Immunization | IgA to A/New Caledonia/20/99 at Day 28 | 1 Participants |
| IVV With 1M IFN | Antibody Responses in Nasal Secretions to Influenza A/H1N1 and A/H3N2 at 28 Days After Intranasal Immunization | IgG to A/Wisconsin/67/2005 at Day 28 | 3 Participants |
| IVV With 1M IFN | Antibody Responses in Nasal Secretions to Influenza A/H1N1 and A/H3N2 at 28 Days After Intranasal Immunization | IgA to A/Wisconsin/67/2005 at Day 28 | 3 Participants |
| IVV Without IFN | Antibody Responses in Nasal Secretions to Influenza A/H1N1 and A/H3N2 at 28 Days After Intranasal Immunization | IgA to A/Wisconsin/67/2005 at Day 28 | 3 Participants |
| IVV Without IFN | Antibody Responses in Nasal Secretions to Influenza A/H1N1 and A/H3N2 at 28 Days After Intranasal Immunization | IgG to A/New Caledonia/20/99 at Day 28 | 3 Participants |
| IVV Without IFN | Antibody Responses in Nasal Secretions to Influenza A/H1N1 and A/H3N2 at 28 Days After Intranasal Immunization | IgG to A/Wisconsin/67/2005 at Day 28 | 4 Participants |
| IVV Without IFN | Antibody Responses in Nasal Secretions to Influenza A/H1N1 and A/H3N2 at 28 Days After Intranasal Immunization | IgA to A/New Caledonia/20/99 at Day 28 | 3 Participants |
| IVV With 10M IFN | Antibody Responses in Nasal Secretions to Influenza A/H1N1 and A/H3N2 at 28 Days After Intranasal Immunization | IgA to A/Wisconsin/67/2005 at Day 28 | 4 Participants |
| IVV With 10M IFN | Antibody Responses in Nasal Secretions to Influenza A/H1N1 and A/H3N2 at 28 Days After Intranasal Immunization | IgA to A/New Caledonia/20/99 at Day 28 | 1 Participants |
| IVV With 10M IFN | Antibody Responses in Nasal Secretions to Influenza A/H1N1 and A/H3N2 at 28 Days After Intranasal Immunization | IgG to A/Wisconsin/67/2005 at Day 28 | 6 Participants |
| IVV With 10M IFN | Antibody Responses in Nasal Secretions to Influenza A/H1N1 and A/H3N2 at 28 Days After Intranasal Immunization | IgG to A/New Caledonia/20/99 at Day 28 | 3 Participants |
Secondary
Local and/or Systemic Solicited Symptoms After Intranasal Immunization.
Number of participants (frequency) reporting solicited (systematically collected on a Memory Aid) reactogenicity events of any severity and number reporting severe occurrences.
Time frame: 0-7 days following immunization
| Arm | Measure | Group | Value (NUMBER) |
|---|---|---|---|
| IVV With 1M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Malaise - Severe | 0 Participants |
| IVV With 1M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Myalgia - Any severity | 7 Participants |
| IVV With 1M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Nasal Obstruction - Severe | 0 Participants |
| IVV With 1M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Myalgia - Severe | 0 Participants |
| IVV With 1M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Nausea - Severe | 0 Participants |
| IVV With 1M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Any systemic symptom of any severity | 21 Participants |
| IVV With 1M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Headache - Any severity | 14 Participants |
| IVV With 1M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Severe systemic symptom | 0 Participants |
| IVV With 1M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Nasal Discharge - Any severity | 14 Participants |
| IVV With 1M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Any local symptom of any severity | 22 Participants |
| IVV With 1M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Severe local symptom | 0 Participants |
| IVV With 1M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Any symptom of any severity | 27 Participants |
| IVV With 1M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Nasal Discharge - Severe | 0 Participants |
| IVV With 1M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Severe symptom | 0 Participants |
| IVV With 1M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Elevated Oral Temperature - Severe | 0 Participants |
| IVV With 1M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Sneezing - Any severity | 10 Participants |
| IVV With 1M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Headache - Severe | 0 Participants |
| IVV With 1M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Sneezing - Severe | 0 Participants |
| IVV With 1M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Sore Throat - Any severity | 10 Participants |
| IVV With 1M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Sore Throat - Severe | 0 Participants |
| IVV With 1M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Nausea - Any severity | 1 Participants |
| IVV With 1M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Cough - Any severity | 5 Participants |
| IVV With 1M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Cough - Severe | 0 Participants |
| IVV With 1M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Feverishness - Any severity | 0 Participants |
| IVV With 1M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Nasal Obstruction - Any severity | 9 Participants |
| IVV With 1M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Feverishness - Severe | 0 Participants |
| IVV With 1M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Elevated Oral Temperature - Any severity | 0 Participants |
| IVV With 1M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Malaise - Any severity | 7 Participants |
| IVV Without IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Nasal Discharge - Severe | 0 Participants |
| IVV Without IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Malaise - Severe | 1 Participants |
| IVV Without IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Feverishness - Any severity | 1 Participants |
| IVV Without IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Malaise - Any severity | 11 Participants |
| IVV Without IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Myalgia - Any severity | 5 Participants |
| IVV Without IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Cough - Any severity | 5 Participants |
| IVV Without IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Sneezing - Any severity | 13 Participants |
| IVV Without IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Myalgia - Severe | 1 Participants |
| IVV Without IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Nasal Obstruction - Severe | 0 Participants |
| IVV Without IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Nausea - Any severity | 1 Participants |
| IVV Without IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Nausea - Severe | 1 Participants |
| IVV Without IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Nasal Obstruction - Any severity | 10 Participants |
| IVV Without IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Any systemic symptom of any severity | 21 Participants |
| IVV Without IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Sneezing - Severe | 0 Participants |
| IVV Without IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Headache - Severe | 0 Participants |
| IVV Without IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Severe systemic symptom | 1 Participants |
| IVV Without IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Cough - Severe | 0 Participants |
| IVV Without IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Sore Throat - Any severity | 10 Participants |
| IVV Without IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Any local symptom of any severity | 24 Participants |
| IVV Without IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Nasal Discharge - Any severity | 14 Participants |
| IVV Without IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Elevated Oral Temperature - Severe | 0 Participants |
| IVV Without IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Severe local symptom | 0 Participants |
| IVV Without IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Headache - Any severity | 17 Participants |
| IVV Without IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Elevated Oral Temperature - Any severity | 1 Participants |
| IVV Without IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Any symptom of any severity | 28 Participants |
| IVV Without IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Sore Throat - Severe | 0 Participants |
| IVV Without IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Feverishness - Severe | 1 Participants |
| IVV Without IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Severe symptom | 1 Participants |
| IVV With 10M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Feverishness - Severe | 0 Participants |
| IVV With 10M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Elevated Oral Temperature - Any severity | 0 Participants |
| IVV With 10M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Elevated Oral Temperature - Severe | 0 Participants |
| IVV With 10M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Headache - Any severity | 12 Participants |
| IVV With 10M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Headache - Severe | 1 Participants |
| IVV With 10M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Nausea - Any severity | 6 Participants |
| IVV With 10M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Nausea - Severe | 0 Participants |
| IVV With 10M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Nasal Obstruction - Any severity | 9 Participants |
| IVV With 10M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Nasal Obstruction - Severe | 0 Participants |
| IVV With 10M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Nasal Discharge - Any severity | 10 Participants |
| IVV With 10M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Nasal Discharge - Severe | 0 Participants |
| IVV With 10M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Sneezing - Any severity | 9 Participants |
| IVV With 10M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Sneezing - Severe | 0 Participants |
| IVV With 10M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Sore Throat - Any severity | 11 Participants |
| IVV With 10M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Sore Throat - Severe | 0 Participants |
| IVV With 10M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Cough - Any severity | 8 Participants |
| IVV With 10M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Cough - Severe | 0 Participants |
| IVV With 10M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Severe symptom | 2 Participants |
| IVV With 10M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Feverishness - Any severity | 2 Participants |
| IVV With 10M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Malaise - Any severity | 9 Participants |
| IVV With 10M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Malaise - Severe | 2 Participants |
| IVV With 10M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Myalgia - Any severity | 5 Participants |
| IVV With 10M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Myalgia - Severe | 0 Participants |
| IVV With 10M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Any systemic symptom of any severity | 20 Participants |
| IVV With 10M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Severe systemic symptom | 2 Participants |
| IVV With 10M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Any local symptom of any severity | 20 Participants |
| IVV With 10M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Severe local symptom | 0 Participants |
| IVV With 10M IFN | Local and/or Systemic Solicited Symptoms After Intranasal Immunization. | Any symptom of any severity | 26 Participants |
Secondary
Serum Antibody Responses (Hemagglutination Inhibition (HAI) and Neutralization) to Influenza A/H1N1 and A/H3N2 at 14 Days After Intranasal Immunization.
Number of subjects (frequency) responding with a four-fold or greater increase (magnitude) in titer at 14 days after immunization, relative to pre-immunization levels.
Time frame: 14 days after immunization.
| Arm | Measure | Group | Value (NUMBER) |
|---|---|---|---|
| IVV With 1M IFN | Serum Antibody Responses (Hemagglutination Inhibition (HAI) and Neutralization) to Influenza A/H1N1 and A/H3N2 at 14 Days After Intranasal Immunization. | HAI - A/New Caledonia/20/99 at Day 14 | 13 Participants |
| IVV With 1M IFN | Serum Antibody Responses (Hemagglutination Inhibition (HAI) and Neutralization) to Influenza A/H1N1 and A/H3N2 at 14 Days After Intranasal Immunization. | HAI - A/Wisconsin/67/2005 at Day 14 | 12 Participants |
| IVV With 1M IFN | Serum Antibody Responses (Hemagglutination Inhibition (HAI) and Neutralization) to Influenza A/H1N1 and A/H3N2 at 14 Days After Intranasal Immunization. | Neutralization - A/New Caledonia/20/99 at Day 14 | 12 Participants |
| IVV With 1M IFN | Serum Antibody Responses (Hemagglutination Inhibition (HAI) and Neutralization) to Influenza A/H1N1 and A/H3N2 at 14 Days After Intranasal Immunization. | Neutralization - A/Wisconsin/67/2005 at Day 14 | 13 Participants |
| IVV Without IFN | Serum Antibody Responses (Hemagglutination Inhibition (HAI) and Neutralization) to Influenza A/H1N1 and A/H3N2 at 14 Days After Intranasal Immunization. | Neutralization - A/Wisconsin/67/2005 at Day 14 | 16 Participants |
| IVV Without IFN | Serum Antibody Responses (Hemagglutination Inhibition (HAI) and Neutralization) to Influenza A/H1N1 and A/H3N2 at 14 Days After Intranasal Immunization. | HAI - A/New Caledonia/20/99 at Day 14 | 16 Participants |
| IVV Without IFN | Serum Antibody Responses (Hemagglutination Inhibition (HAI) and Neutralization) to Influenza A/H1N1 and A/H3N2 at 14 Days After Intranasal Immunization. | Neutralization - A/New Caledonia/20/99 at Day 14 | 13 Participants |
| IVV Without IFN | Serum Antibody Responses (Hemagglutination Inhibition (HAI) and Neutralization) to Influenza A/H1N1 and A/H3N2 at 14 Days After Intranasal Immunization. | HAI - A/Wisconsin/67/2005 at Day 14 | 21 Participants |
| IVV With 10M IFN | Serum Antibody Responses (Hemagglutination Inhibition (HAI) and Neutralization) to Influenza A/H1N1 and A/H3N2 at 14 Days After Intranasal Immunization. | Neutralization - A/Wisconsin/67/2005 at Day 14 | 10 Participants |
| IVV With 10M IFN | Serum Antibody Responses (Hemagglutination Inhibition (HAI) and Neutralization) to Influenza A/H1N1 and A/H3N2 at 14 Days After Intranasal Immunization. | HAI - A/Wisconsin/67/2005 at Day 14 | 7 Participants |
| IVV With 10M IFN | Serum Antibody Responses (Hemagglutination Inhibition (HAI) and Neutralization) to Influenza A/H1N1 and A/H3N2 at 14 Days After Intranasal Immunization. | Neutralization - A/New Caledonia/20/99 at Day 14 | 9 Participants |
| IVV With 10M IFN | Serum Antibody Responses (Hemagglutination Inhibition (HAI) and Neutralization) to Influenza A/H1N1 and A/H3N2 at 14 Days After Intranasal Immunization. | HAI - A/New Caledonia/20/99 at Day 14 | 11 Participants |
Secondary
Serum Antibody Responses (Hemagglutination Inhibition (HAI) and Neutralization) to Influenza A/H1N1 and A/H3N2 at 28 Days After Intranasal Immunization.
Number of subjects (frequency) responding with a four-fold or greater increase (magnitude) in titer at 28 days after immunization, relative to pre-immunization levels.
Time frame: 28 days after immunization
| Arm | Measure | Group | Value (NUMBER) |
|---|---|---|---|
| IVV With 1M IFN | Serum Antibody Responses (Hemagglutination Inhibition (HAI) and Neutralization) to Influenza A/H1N1 and A/H3N2 at 28 Days After Intranasal Immunization. | HAI - A/New Caledonia/20/99 at Day 28 | 14 Participants |
| IVV With 1M IFN | Serum Antibody Responses (Hemagglutination Inhibition (HAI) and Neutralization) to Influenza A/H1N1 and A/H3N2 at 28 Days After Intranasal Immunization. | HAI - A/Wisconsin/67/2005 at Day 28 | 20 Participants |
| IVV With 1M IFN | Serum Antibody Responses (Hemagglutination Inhibition (HAI) and Neutralization) to Influenza A/H1N1 and A/H3N2 at 28 Days After Intranasal Immunization. | Neutralization - A/New Caledonia/20/99 at Day 28 | 15 Participants |
| IVV With 1M IFN | Serum Antibody Responses (Hemagglutination Inhibition (HAI) and Neutralization) to Influenza A/H1N1 and A/H3N2 at 28 Days After Intranasal Immunization. | Neutralization - A/Wisconsin/67/2005 at Day 28 | 13 Participants |
| IVV Without IFN | Serum Antibody Responses (Hemagglutination Inhibition (HAI) and Neutralization) to Influenza A/H1N1 and A/H3N2 at 28 Days After Intranasal Immunization. | Neutralization - A/Wisconsin/67/2005 at Day 28 | 17 Participants |
| IVV Without IFN | Serum Antibody Responses (Hemagglutination Inhibition (HAI) and Neutralization) to Influenza A/H1N1 and A/H3N2 at 28 Days After Intranasal Immunization. | HAI - A/New Caledonia/20/99 at Day 28 | 17 Participants |
| IVV Without IFN | Serum Antibody Responses (Hemagglutination Inhibition (HAI) and Neutralization) to Influenza A/H1N1 and A/H3N2 at 28 Days After Intranasal Immunization. | Neutralization - A/New Caledonia/20/99 at Day 28 | 17 Participants |
| IVV Without IFN | Serum Antibody Responses (Hemagglutination Inhibition (HAI) and Neutralization) to Influenza A/H1N1 and A/H3N2 at 28 Days After Intranasal Immunization. | HAI - A/Wisconsin/67/2005 at Day 28 | 23 Participants |
| IVV With 10M IFN | Serum Antibody Responses (Hemagglutination Inhibition (HAI) and Neutralization) to Influenza A/H1N1 and A/H3N2 at 28 Days After Intranasal Immunization. | Neutralization - A/Wisconsin/67/2005 at Day 28 | 8 Participants |
| IVV With 10M IFN | Serum Antibody Responses (Hemagglutination Inhibition (HAI) and Neutralization) to Influenza A/H1N1 and A/H3N2 at 28 Days After Intranasal Immunization. | HAI - A/Wisconsin/67/2005 at Day 28 | 7 Participants |
| IVV With 10M IFN | Serum Antibody Responses (Hemagglutination Inhibition (HAI) and Neutralization) to Influenza A/H1N1 and A/H3N2 at 28 Days After Intranasal Immunization. | Neutralization - A/New Caledonia/20/99 at Day 28 | 10 Participants |
| IVV With 10M IFN | Serum Antibody Responses (Hemagglutination Inhibition (HAI) and Neutralization) to Influenza A/H1N1 and A/H3N2 at 28 Days After Intranasal Immunization. | HAI - A/New Caledonia/20/99 at Day 28 | 11 Participants |
Secondary
Unsolicited Adverse Events After Intranasal Immunization
Number of subjects (frequency) with spontaneous reports of Adverse Events of any severity and severe or higher severity, during the 28 days after vaccination regardless of relatedness. Events reported by more than 5.6% of subjects in any group are reported by MedDRA Preferred Term.
Time frame: Non-serious AEs are collected through 28 days after vaccination. Serious AEs are collected through 180 days after vaccination.
Population: A reporting threshold of 5.6% was selected after reviewing adverse event rates in healthy adult volunteers in similar studies sponsored by NIAID. We determined 5.6% to be the upper bound of the confidence interval to exclude reporting events that occur in 75% of healthy adults.
| Arm | Measure | Group | Value (NUMBER) |
|---|---|---|---|
| IVV With 1M IFN | Unsolicited Adverse Events After Intranasal Immunization | Rhinorrhoea - Any severity | 3 Participants |
| IVV With 1M IFN | Unsolicited Adverse Events After Intranasal Immunization | Dysgeusia - Any severity | 2 Participants |
| IVV With 1M IFN | Unsolicited Adverse Events After Intranasal Immunization | Dysgeusia - Severe | 0 Participants |
| IVV With 1M IFN | Unsolicited Adverse Events After Intranasal Immunization | Pharyngolaryngeal pain - Any severity | 1 Participants |
| IVV With 1M IFN | Unsolicited Adverse Events After Intranasal Immunization | Pharyngolaryngeal pain - Severe | 0 Participants |
| IVV With 1M IFN | Unsolicited Adverse Events After Intranasal Immunization | Rhinorrhoea - Severe | 0 Participants |
| IVV With 1M IFN | Unsolicited Adverse Events After Intranasal Immunization | Dizziness - Any severity | 2 Participants |
| IVV With 1M IFN | Unsolicited Adverse Events After Intranasal Immunization | Dizziness - Severe | 0 Participants |
| IVV With 1M IFN | Unsolicited Adverse Events After Intranasal Immunization | Dysphonia - Any severity | 0 Participants |
| IVV With 1M IFN | Unsolicited Adverse Events After Intranasal Immunization | Dysphonia - Severe | 0 Participants |
| IVV With 1M IFN | Unsolicited Adverse Events After Intranasal Immunization | Postnasal drip - Any severity | 0 Participants |
| IVV With 1M IFN | Unsolicited Adverse Events After Intranasal Immunization | Postnasal drip - Severe | 0 Participants |
| IVV With 1M IFN | Unsolicited Adverse Events After Intranasal Immunization | Diarrhoea - Any severity | 0 Participants |
| IVV With 1M IFN | Unsolicited Adverse Events After Intranasal Immunization | Diarrhoea - Severe | 0 Participants |
| IVV With 1M IFN | Unsolicited Adverse Events After Intranasal Immunization | Abdominal pain upper - Any severity | 2 Participants |
| IVV With 1M IFN | Unsolicited Adverse Events After Intranasal Immunization | Abdominal pain upper - Severe | 0 Participants |
| IVV With 1M IFN | Unsolicited Adverse Events After Intranasal Immunization | Upper respiratory tract infection - Any severity | 4 Participants |
| IVV With 1M IFN | Unsolicited Adverse Events After Intranasal Immunization | Upper respiratory tract infection - Severe | 0 Participants |
| IVV Without IFN | Unsolicited Adverse Events After Intranasal Immunization | Upper respiratory tract infection - Severe | 1 Participants |
| IVV Without IFN | Unsolicited Adverse Events After Intranasal Immunization | Diarrhoea - Any severity | 3 Participants |
| IVV Without IFN | Unsolicited Adverse Events After Intranasal Immunization | Dysgeusia - Any severity | 1 Participants |
| IVV Without IFN | Unsolicited Adverse Events After Intranasal Immunization | Dysphonia - Severe | 0 Participants |
| IVV Without IFN | Unsolicited Adverse Events After Intranasal Immunization | Dysgeusia - Severe | 0 Participants |
| IVV Without IFN | Unsolicited Adverse Events After Intranasal Immunization | Abdominal pain upper - Any severity | 0 Participants |
| IVV Without IFN | Unsolicited Adverse Events After Intranasal Immunization | Upper respiratory tract infection - Any severity | 3 Participants |
| IVV Without IFN | Unsolicited Adverse Events After Intranasal Immunization | Pharyngolaryngeal pain - Any severity | 2 Participants |
| IVV Without IFN | Unsolicited Adverse Events After Intranasal Immunization | Abdominal pain upper - Severe | 0 Participants |
| IVV Without IFN | Unsolicited Adverse Events After Intranasal Immunization | Diarrhoea - Severe | 0 Participants |
| IVV Without IFN | Unsolicited Adverse Events After Intranasal Immunization | Pharyngolaryngeal pain - Severe | 0 Participants |
| IVV Without IFN | Unsolicited Adverse Events After Intranasal Immunization | Postnasal drip - Any severity | 0 Participants |
| IVV Without IFN | Unsolicited Adverse Events After Intranasal Immunization | Dysphonia - Any severity | 0 Participants |
| IVV Without IFN | Unsolicited Adverse Events After Intranasal Immunization | Rhinorrhoea - Any severity | 0 Participants |
| IVV Without IFN | Unsolicited Adverse Events After Intranasal Immunization | Dizziness - Severe | 0 Participants |
| IVV Without IFN | Unsolicited Adverse Events After Intranasal Immunization | Postnasal drip - Severe | 0 Participants |
| IVV Without IFN | Unsolicited Adverse Events After Intranasal Immunization | Rhinorrhoea - Severe | 0 Participants |
| IVV Without IFN | Unsolicited Adverse Events After Intranasal Immunization | Dizziness - Any severity | 0 Participants |
| IVV With 10M IFN | Unsolicited Adverse Events After Intranasal Immunization | Rhinorrhoea - Severe | 0 Participants |
| IVV With 10M IFN | Unsolicited Adverse Events After Intranasal Immunization | Dizziness - Any severity | 0 Participants |
| IVV With 10M IFN | Unsolicited Adverse Events After Intranasal Immunization | Dizziness - Severe | 0 Participants |
| IVV With 10M IFN | Unsolicited Adverse Events After Intranasal Immunization | Abdominal pain upper - Any severity | 0 Participants |
| IVV With 10M IFN | Unsolicited Adverse Events After Intranasal Immunization | Dysphonia - Any severity | 2 Participants |
| IVV With 10M IFN | Unsolicited Adverse Events After Intranasal Immunization | Upper respiratory tract infection - Severe | 0 Participants |
| IVV With 10M IFN | Unsolicited Adverse Events After Intranasal Immunization | Dysphonia - Severe | 0 Participants |
| IVV With 10M IFN | Unsolicited Adverse Events After Intranasal Immunization | Postnasal drip - Any severity | 2 Participants |
| IVV With 10M IFN | Unsolicited Adverse Events After Intranasal Immunization | Abdominal pain upper - Severe | 0 Participants |
| IVV With 10M IFN | Unsolicited Adverse Events After Intranasal Immunization | Postnasal drip - Severe | 0 Participants |
| IVV With 10M IFN | Unsolicited Adverse Events After Intranasal Immunization | Diarrhoea - Any severity | 0 Participants |
| IVV With 10M IFN | Unsolicited Adverse Events After Intranasal Immunization | Dysgeusia - Severe | 0 Participants |
| IVV With 10M IFN | Unsolicited Adverse Events After Intranasal Immunization | Pharyngolaryngeal pain - Any severity | 1 Participants |
| IVV With 10M IFN | Unsolicited Adverse Events After Intranasal Immunization | Pharyngolaryngeal pain - Severe | 0 Participants |
| IVV With 10M IFN | Unsolicited Adverse Events After Intranasal Immunization | Dysgeusia - Any severity | 0 Participants |
| IVV With 10M IFN | Unsolicited Adverse Events After Intranasal Immunization | Rhinorrhoea - Any severity | 1 Participants |
| IVV With 10M IFN | Unsolicited Adverse Events After Intranasal Immunization | Diarrhoea - Severe | 0 Participants |
| IVV With 10M IFN | Unsolicited Adverse Events After Intranasal Immunization | Upper respiratory tract infection - Any severity | 3 Participants |
Other Pre-specified
Serum Antibody Responses (Hemagglutination Inhibition (HAI) and Neutralization) to Influenza B at 14 Days After Intranasal Immunization.
Number of subjects (frequency) responding with a four-fold or greater increase (magnitude) in titer at 14 days after immunization, relative to pre-immunization levels.
Time frame: 14 days after immunization
| Arm | Measure | Group | Value (NUMBER) |
|---|---|---|---|
| IVV With 1M IFN | Serum Antibody Responses (Hemagglutination Inhibition (HAI) and Neutralization) to Influenza B at 14 Days After Intranasal Immunization. | HAI - B/Malaysia/2506/2004 at Day 14 | 11 Participants |
| IVV With 1M IFN | Serum Antibody Responses (Hemagglutination Inhibition (HAI) and Neutralization) to Influenza B at 14 Days After Intranasal Immunization. | Neutralization - B/Malaysia/2506/2004 at Day 14 | 9 Participants |
| IVV Without IFN | Serum Antibody Responses (Hemagglutination Inhibition (HAI) and Neutralization) to Influenza B at 14 Days After Intranasal Immunization. | HAI - B/Malaysia/2506/2004 at Day 14 | 13 Participants |
| IVV Without IFN | Serum Antibody Responses (Hemagglutination Inhibition (HAI) and Neutralization) to Influenza B at 14 Days After Intranasal Immunization. | Neutralization - B/Malaysia/2506/2004 at Day 14 | 12 Participants |
| IVV With 10M IFN | Serum Antibody Responses (Hemagglutination Inhibition (HAI) and Neutralization) to Influenza B at 14 Days After Intranasal Immunization. | HAI - B/Malaysia/2506/2004 at Day 14 | 8 Participants |
| IVV With 10M IFN | Serum Antibody Responses (Hemagglutination Inhibition (HAI) and Neutralization) to Influenza B at 14 Days After Intranasal Immunization. | Neutralization - B/Malaysia/2506/2004 at Day 14 | 8 Participants |
Other Pre-specified
Serum Antibody Responses (Hemagglutination Inhibition (HAI) and Neutralization) to Influenza B at 28 Days After Intranasal Immunization.
Number of subjects (frequency) responding with a four-fold or greater increase (magnitude) in titer at 28 days after immunization, relative to pre-immunization levels.
Time frame: 28 days after immunization
| Arm | Measure | Group | Value (NUMBER) |
|---|---|---|---|
| IVV With 1M IFN | Serum Antibody Responses (Hemagglutination Inhibition (HAI) and Neutralization) to Influenza B at 28 Days After Intranasal Immunization. | Neutralization - B/Malaysia/2506/2004 at Day 28 | 13 Participants |
| IVV With 1M IFN | Serum Antibody Responses (Hemagglutination Inhibition (HAI) and Neutralization) to Influenza B at 28 Days After Intranasal Immunization. | HAI - B/Malaysia/2506/2004 at Day 28 | 16 Participants |
| IVV Without IFN | Serum Antibody Responses (Hemagglutination Inhibition (HAI) and Neutralization) to Influenza B at 28 Days After Intranasal Immunization. | Neutralization - B/Malaysia/2506/2004 at Day 28 | 16 Participants |
| IVV Without IFN | Serum Antibody Responses (Hemagglutination Inhibition (HAI) and Neutralization) to Influenza B at 28 Days After Intranasal Immunization. | HAI - B/Malaysia/2506/2004 at Day 28 | 14 Participants |
| IVV With 10M IFN | Serum Antibody Responses (Hemagglutination Inhibition (HAI) and Neutralization) to Influenza B at 28 Days After Intranasal Immunization. | Neutralization - B/Malaysia/2506/2004 at Day 28 | 13 Participants |
| IVV With 10M IFN | Serum Antibody Responses (Hemagglutination Inhibition (HAI) and Neutralization) to Influenza B at 28 Days After Intranasal Immunization. | HAI - B/Malaysia/2506/2004 at Day 28 | 9 Participants |