Influenza Prophylaxis
Conditions
Keywords
uncontrolled, open, multi-centre, immunogenicity and tolerability, two groups according to age (18-59 years and ≥60 years)
Brief summary
To assess immunogenicity of a single intramuscular injection of Fluval AB suspension for injection (trivalent, seasonal influenza vaccine, active ingredient content: 15 μgHA/0.5mL of seasonal A/H1N1, A/H3N2 and B influenza antigens each), as measured by haemagglutination inhibition (HI) test.
Detailed description
Aim of the study: To assess immunogenicity and safety of Fluval AB seasonal influenza vaccine with 3 x 15 μgHA active ingredient in two age groups (18-59 years and ≥60 years) in accordance with CPMP/BWP/214/96: Note for Guidance on Harmonization of Requirements for Influenza Vaccines, 12 March 1997 Primary objective: To assess immunogenicity of a single intramuscular injection of Fluval AB suspension for injection (trivalent, seasonal influenza vaccine, active ingredient content: 15 μgHA/0.5mL of seasonal A/H1N1, A/H3N2 and B influenza antigens each), as measured by haemagglutination inhibition test. Methods: In this open label, uncontrolled, multi-centre immunogenicity and tolerability study subjects were enrolled in two groups according to age (18-59 years and ≥60 years) and assigned to the following vaccine group: Group 1: Single injection of Fluval AB suspension for injection. Subjects were observed for 30 minutes after the injection on Visit 1 (Day 0) for any immediate reactions. All subjects were requested to complete a diary card to record local reactions (injection site pain, erythema, swelling, induration and ecchymosis) and systemic reactions (fever, shivering, headache, malaise, fatigue, sweating, nausea, myalgia and arthralgia) started on the day of vaccination on Visit 1 (Day 0) until 7 (seven) days following that. All adverse events were collected during the period of Visit 1 (Day 0) to Visit 2 (between Day 21 and Day 28). Serum samples for immunogenicity assays were collected immediately before immunization on Visit 1 (Day 0) and on Visit 2 (between Day 21 and Day 28) in all subjects. Immunogenicity was evaluated by HI test.
Interventions
Single intramuscular injection with Fluval AB suspension for injection in both age groups
Sponsors
Study design
Intervention model description
parallel-group, in two age groups
Eligibility
Inclusion criteria
* Adult persons aged 18 to 59 years, elderly persons aged ≥60 years from both sexes, mentally competent; * Are in good health (as determined by vital signs and existing medical condition) or are in stable medical condition. Subjects will not be excluded with known adequately treated clinically significant organ or systemic diseases (e.g. asthma or diabetes), such that, in the opinion of the investigator, the significance of the disease will not compromise the subject's participation in the study; * Female volunteers aged 18-59 years (i.e. participants of childbearing potential) with a negative result from the urine pregnancy test prior to vaccination who agrees to use an acceptable contraception method or abstinence throughout the trial and not become pregnant for the duration of the study; * Capability of participants to understand and comply with planned study procedures; * Participants provide written Informed Consent (IC) prior to initiation of study procedures; * Absence of existence of any
Exclusion criteria
.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Change in Geometric Mean Titre Ratio, A/H1N1 Strain | 21-28 days after vaccination | Ratio of Day 0 and Day 21-28 antihaemagglutination inhibition titres Requirement (Age group 1): ≥ 2.5 Requirement (Age group 2): ≥ 2.0 |
| Change in Geometric Mean Titre Ratio, A/H3N2 Strain | 21-28 days after vaccination | Ratio of Day 0 and Day 21-28 antihaemagglutination inhibition titres Requirement (Age group 1): ≥ 2.5 Requirement (Age group 2): ≥ 2.0 |
| Change in Geometric Mean Titre Ratio, B Strain | 21-28 days after vaccination | Ratio of Day 0 and Day 21-28 antihaemagglutination inhibition titres Requirement (Age group 1): ≥ 2.5 Requirement (Age group 2): ≥ 2.0 |
| Seroconversion, A/H1N1 Strain | 21-28 days after vaccination | Percentage of subjects seroconverted or had a significant increase in titres Requirement (Age group 1): \> 40 % Requirement (Age group 2): \> 30 % |
| Seroconversion, A/H3N2 Strain | 21-28 days after vaccination | Percentage of subjects seroconverted or had a significant increase in titres Requirement (Age group 1): \> 40 % Requirement (Age group 2): \> 30 % |
| Seroconversion, B Strain | 21-28 days after vaccination | Percentage of subjects seroconverted or had a significant increase in titres Requirement (Age group 1): \> 40 % Requirement (Age group 2): \> 30 % |
| Seroprotection, A/H1N1 Strain | 21-28 days after vaccination | Percentage of subjects seroprotected Requirement (Age group 1): \> 70 % Requirement (Age group 2): \> 60 % |
| Seroprotection, A/H3N2 Strain | 21-28 days after vaccination | Percentage of subjects seroprotected Requirement (Age group 1): \> 70 % Requirement (Age group 2): \> 60 % |
| Seroprotection, B Strain | 21-28 days after vaccination | Percentage of subjects seroprotected Requirement (Age group 1): \> 70 % Requirement (Age group 2): \> 60 % |
Countries
Hungary
Participant flow
Participants by arm
| Arm | Count |
|---|---|
| Age Group 1: Adults (18-59 Years) Intervention: Vaccination with Fluval AB suspension for injection.
Dosage: A single dose (0.5 ml) vaccine, administered intramuscularly. | 59 |
| Age Group 2: Elderly (>60 Years) Intervention: Vaccination with Fluval AB suspension for injection.
Dosage: A single dose (0.5 ml) vaccine, administered intramuscularly. | 60 |
| Total | 119 |
Withdrawals & dropouts
| Period | Reason | FG000 | FG001 |
|---|---|---|---|
| Overall Study | Lost to Follow-up | 1 | 0 |
Baseline characteristics
| Characteristic | Age Group 2: Elderly (>60 Years) | Total | Age Group 1: Adults (18-59 Years) |
|---|---|---|---|
| Age, Categorical <=18 years | 0 Participants | 0 Participants | 0 Participants |
| Age, Categorical >=65 years | 44 Participants | 44 Participants | 0 Participants |
| Age, Categorical Between 18 and 65 years | 16 Participants | 75 Participants | 59 Participants |
| Age, Continuous | 69.8 years STANDARD_DEVIATION 6.87 | 58.1 years STANDARD_DEVIATION 14.6 | 46.1 years STANDARD_DEVIATION 9.69 |
| Race (NIH/OMB) American Indian or Alaska Native | 0 Participants | 0 Participants | 0 Participants |
| Race (NIH/OMB) Asian | 0 Participants | 0 Participants | 0 Participants |
| Race (NIH/OMB) Black or African American | 0 Participants | 0 Participants | 0 Participants |
| Race (NIH/OMB) More than one race | 0 Participants | 0 Participants | 0 Participants |
| Race (NIH/OMB) Native Hawaiian or Other Pacific Islander | 0 Participants | 0 Participants | 0 Participants |
| Race (NIH/OMB) Unknown or Not Reported | 0 Participants | 0 Participants | 0 Participants |
| Race (NIH/OMB) White | 60 Participants | 119 Participants | 59 Participants |
| Region of Enrollment Hungary | 60 Participants | 119 Participants | 59 Participants |
| Sex: Female, Male Female | 31 Participants | 68 Participants | 37 Participants |
| Sex: Female, Male Male | 29 Participants | 51 Participants | 22 Participants |
Adverse events
| Event type | EG000 affected / at risk | EG001 affected / at risk |
|---|---|---|
| deaths Total, all-cause mortality | 0 / 59 | 0 / 60 |
| other Total, other adverse events | 51 / 59 | 14 / 60 |
| serious Total, serious adverse events | 0 / 59 | 0 / 60 |
Outcome results
Change in Geometric Mean Titre Ratio, A/H1N1 Strain
Ratio of Day 0 and Day 21-28 antihaemagglutination inhibition titres Requirement (Age group 1): ≥ 2.5 Requirement (Age group 2): ≥ 2.0
Time frame: 21-28 days after vaccination
Population: PP population (subjects whose antihaemagglutination inhibition titres are available both Day 0 and Day 21-28 visits)
| Arm | Measure | Value (MEAN) |
|---|---|---|
| Age Group 1: Adults (18-59 Years) | Change in Geometric Mean Titre Ratio, A/H1N1 Strain | 3.13 Ratio of Day 0 and Day 21-28 titres |
| Age Group 2: Elderly (>60 Years) | Change in Geometric Mean Titre Ratio, A/H1N1 Strain | 3.17 Ratio of Day 0 and Day 21-28 titres |
Change in Geometric Mean Titre Ratio, A/H3N2 Strain
Ratio of Day 0 and Day 21-28 antihaemagglutination inhibition titres Requirement (Age group 1): ≥ 2.5 Requirement (Age group 2): ≥ 2.0
Time frame: 21-28 days after vaccination
Population: PP population (subjects whose antihaemagglutination inhibition titres are available both Day 0 and Day 21-28 visits)
| Arm | Measure | Value (MEAN) |
|---|---|---|
| Age Group 1: Adults (18-59 Years) | Change in Geometric Mean Titre Ratio, A/H3N2 Strain | 3.58 Ratio of Day 0 and Day 21-28 titres |
| Age Group 2: Elderly (>60 Years) | Change in Geometric Mean Titre Ratio, A/H3N2 Strain | 3.86 Ratio of Day 0 and Day 21-28 titres |
Change in Geometric Mean Titre Ratio, B Strain
Ratio of Day 0 and Day 21-28 antihaemagglutination inhibition titres Requirement (Age group 1): ≥ 2.5 Requirement (Age group 2): ≥ 2.0
Time frame: 21-28 days after vaccination
Population: PP population (subjects whose antihaemagglutination inhibition titres are available both Day 0 and Day 21-28 visits)
| Arm | Measure | Value (MEAN) |
|---|---|---|
| Age Group 1: Adults (18-59 Years) | Change in Geometric Mean Titre Ratio, B Strain | 3.58 Ratio of Day 0 and Day 21-28 titres |
| Age Group 2: Elderly (>60 Years) | Change in Geometric Mean Titre Ratio, B Strain | 4.29 Ratio of Day 0 and Day 21-28 titres |
Seroconversion, A/H1N1 Strain
Percentage of subjects seroconverted or had a significant increase in titres Requirement (Age group 1): \> 40 % Requirement (Age group 2): \> 30 %
Time frame: 21-28 days after vaccination
Population: PP population (subjects whose antihaemagglutination inhibition titres are available both Day 0 and Day 21-28 visits)
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Age Group 1: Adults (18-59 Years) | Seroconversion, A/H1N1 Strain | 59.3 percentage of subjects seroconverted |
| Age Group 2: Elderly (>60 Years) | Seroconversion, A/H1N1 Strain | 66.7 percentage of subjects seroconverted |
Seroconversion, A/H3N2 Strain
Percentage of subjects seroconverted or had a significant increase in titres Requirement (Age group 1): \> 40 % Requirement (Age group 2): \> 30 %
Time frame: 21-28 days after vaccination
Population: PP population (subjects whose antihaemagglutination inhibition titres are available both Day 0 and Day 21-28
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Age Group 1: Adults (18-59 Years) | Seroconversion, A/H3N2 Strain | 69.5 percentage of subjects seroconverted |
| Age Group 2: Elderly (>60 Years) | Seroconversion, A/H3N2 Strain | 70.0 percentage of subjects seroconverted |
Seroconversion, B Strain
Percentage of subjects seroconverted or had a significant increase in titres Requirement (Age group 1): \> 40 % Requirement (Age group 2): \> 30 %
Time frame: 21-28 days after vaccination
Population: PP population (subjects whose antihaemagglutination inhibition titres are available both Day 0 and Day 21-28
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Age Group 1: Adults (18-59 Years) | Seroconversion, B Strain | 54.2 percentage of subjects seroconverted |
| Age Group 2: Elderly (>60 Years) | Seroconversion, B Strain | 65.0 percentage of subjects seroconverted |
Seroprotection, A/H1N1 Strain
Percentage of subjects seroprotected Requirement (Age group 1): \> 70 % Requirement (Age group 2): \> 60 %
Time frame: 21-28 days after vaccination
Population: PP population (subjects whose antihaemagglutination inhibition titres are available both Day 0 and Day 21-28 visits)
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Age Group 1: Adults (18-59 Years) | Seroprotection, A/H1N1 Strain | 94.9 percentage of subjects seroprotected |
| Age Group 2: Elderly (>60 Years) | Seroprotection, A/H1N1 Strain | 96.7 percentage of subjects seroprotected |
Seroprotection, A/H3N2 Strain
Percentage of subjects seroprotected Requirement (Age group 1): \> 70 % Requirement (Age group 2): \> 60 %
Time frame: 21-28 days after vaccination
Population: PP population (subjects whose antihaemagglutination inhibition titres are available both Day 0 and Day 21-28 visits)
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Age Group 1: Adults (18-59 Years) | Seroprotection, A/H3N2 Strain | 100.0 percentage of subjects seroprotected |
| Age Group 2: Elderly (>60 Years) | Seroprotection, A/H3N2 Strain | 100.0 percentage of subjects seroprotected |
Seroprotection, B Strain
Percentage of subjects seroprotected Requirement (Age group 1): \> 70 % Requirement (Age group 2): \> 60 %
Time frame: 21-28 days after vaccination
Population: PP population (subjects whose antihaemagglutination inhibition titres are available both Day 0 and Day 21-28 visits)
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Age Group 1: Adults (18-59 Years) | Seroprotection, B Strain | 79.7 percentage of subjects seroprotected |
| Age Group 2: Elderly (>60 Years) | Seroprotection, B Strain | 78.3 percentage of subjects seroprotected |