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A phase II, randomised, open study to evaluate the immunogenicity and safety of a single or double-dose of the pandemic influenza candidate vaccine split virus formulation adjuvanted with AS03 given following a two-administration schedule 21 days apart in adults over 60 years of age. - H5N1-010 e H5N1-021

A phase II, randomised, open study to evaluate the immunogenicity and safety of a single or double-dose of the pandemic influenza candidate vaccine split virus formulation adjuvanted with AS03 given following a two-administration schedule 21 days apart in adults over 60 years of age. - H5N1-010 e H5N1-021

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2006-004041-42-IT
Enrollment
480
Registered
2007-01-15
Start date
2006-11-07
Completion date
Unknown
Last updated
2012-03-19

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Immunization against influenza disease during pandemic in subjects over 60 years of age. MedDRA version: 6.1 Level: PT Classification code 10022000

Interventions

Product Name: Influenza Monovalent Split Virus H5N1 vaccine adjuvanted with AS03 Pharmaceutical Form: Suspension for injection Other descriptive name: HA from A/Vietnam/1194/2004 H5N1 NIBRG-14 Con

Sponsors

GlaxoSmithKline Biologicals
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Subjects who the investigator believes that they can and will comply with the requirements of the protocol e.g., completion of the diary cards, return for follow-up visits should be enrolled in the study. A male or female aged 61 years or above at the time of the first vaccination. Written informed consent obtained from the subject. Healthy subjects or subjects with well controlled underlying disease. Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) no F.1.2.1 Number of subjects for this age range F.1.3 Elderly (>=65 years) yes F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: Administration of licensed vaccines within 2 weeks for inactivated vaccines or 4 weeks for live vaccines prior to enrolment in this study. Planned administration of a vaccine not foreseen by the study protocol up to 30 days after the second vaccination with H5N1 vaccine. Chronic administration defined as more than 14 days of immunosuppressants or other immune-modifying drugs within six months prior to the first administration of the study vaccine. For corticosteroids, this will mean prednisone, or equivalent, 8805; 0.5 mg/kg/Day. Inhaled and topical steroids are allowed . Any confirmed or suspected immunosuppressive or immunodeficient condition, based on medical history and physical examination no laboratory testing required . History of chronic alcohol consumption and/or drug abuse. History of hypersensitivity to vaccines. History of allergic disease or reactions likely to be exacerbated by any component of the vaccine including egg and thiomersal allergy . Acute clinically significant pulmonary, cardiovascular, hepatic or renal functional abnormality, as determined by physical examination or laboratory screening tests. Acute disease at the time of enrolment. Acute disease is defined as the presence of a moderate or severe illness with or without fever defined as axillary temperature 8805;37.5 C . Serious chronic disease including any medically significant chronic pulmonary, cardiovascular, renal, neurological, psychiatric or metabolic disorder, as determined by medical history and physical examination. Subjects suffering from seasonal allergies or asthma under inhalative treatment can be included, as well as subjects with well controlled underlying diseases . Administration of immunoglobulins and/or any blood products within the three months preceding the first vaccination or during the study. Use of any investigational or non-registered product drug or vaccine other than the study vaccine s within 30 days prior to the first vaccination, or planned use during the study period. Any condition which, in the opinion of the investigator, prevents the subject from participation in the study.

Design outcomes

Primary

MeasureTime frame
Main Objective: To evaluate the immunogenicity of the H5N1 vaccine administered as a single or double dose in terms of humoral immune response anti-haemagglutinin antibody and neutralizing antibody 21 days after each vaccination. To assess the persistence of antibodies 180 days after the first vaccination with the H5N1 vaccine Refer to Section 10.1 for definition of the primary endpoint.;Secondary Objective: Evaluate the safety/reactogenicity of the H5N1 vaccine administered as a single or double-dose in terms of 8722; Percentage, intensity and relationship to vaccination of solicited local and general signs and symptoms during a 7-Day follow-up period i.e. Day of vaccination and 6 subsequent days after each dose of vaccine and overall. 8722; Percentage, intensity and relationship to vaccination of unsolicited local and general signs and symptoms during 21 days following the first H5N1 vaccination i.e. Day of first vaccination and 20 subsequent days and during 30 days following the second vaccination. 8722; Occurrence of serious adverse events SAEs during the entire study period. To evaluate the safety of the H5N1 vaccine administered as a single or double-dose based on haematological and biochemical parameters. To evaluate at days 0, 21, 42 and 180, the cell-mediated immune response in terms ofTh1-specific activation marker expression;Primary end point(s): Geometric mean titres GMTs of H5N1 antibody titres at days 0, 21, 42 and 180 Seroconversion rates SC at days 21, 42 and 180. In addition, humoral immune response in term of anti-HA antibodies will be evaluated using the following parameters with 95 CIs Seroconversion factors at days 21, 42 and 180 Seroprotection rates at days 0, 21, 42 and 180

Countries

Italy

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026