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Immunogenicity and Safety Evaluation of AdimFlu-S (QIS) in Healthy Subjects.

A Phase III, Multi-center, Single-dose, Randomized, Double-blind, Non-inferiority and Lot-to-lot Consistency Study of Immunogenicity and Safety Evaluation of AdimFlu-S Quadrivalent Inactivated Influenza Vaccine (QIS) versus Fluarix Tetra Vaccine in Healthy Subjects.

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2016-001557-41-BE
Enrollment
2100
Registered
2016-08-09
Start date
2016-09-09
Completion date
Unknown
Last updated
2017-12-11

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

Conditions

healthy volunteers MedDRA version: 19.0 Level: PT Classification code 10022000 Term: Influenza System Organ Class: 10021881 - Infections and infestations

Interventions

Product Name: AdimFlu-S (QIS) Product Code: AdimFlu-S (QIS) Pharmaceutical Form: Suspension for injection in pre-filled syringe Current Sponsor code: A/CALIFORNIA/7/2009 (H1N1)PDM09 - DERIVED STRAIN U

Sponsors

Adimmune Corporation
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Males or non-pregnant females and aged =18 years; 2. Stable health status is defined by the absence of a health event satisfying the definition of a serious adverse event, or a change in an ongoing drug therapy due to therapeutic failure or symptoms of drug toxicity, within 1 month prior to enrolment; 3. Willing and able to adhere to visit schedules and all study requirements. If necessary, the burden of a site visit can be removed by a subject-centric approach. At investigators’ discretion, registered nurses and technology can be used in off-site facilities such as nursing home for subject recruitment, monitoring, and sample collection; 4. Subjects are willing to provide signed study-specific informed consent. Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range 630 F.1.3 Elderly (>=65 years) yes F.1.3.1 Number of subjects for this age range 1470

Exclusion criteria

Exclusion criteria: 1. Subjects received seasonal influenza vaccine within 6 months prior to study vaccination; 2. Clinically or virologically confirmed influenza infection within 6 months preceding the study start; 3. Any known or suspected allergy to any constituent of influenza vaccines (including but not limited to egg proteins) or a history of severe adverse reaction to a previous influenza vaccine; 4. Personal or family history of Guillain-Barré Syndrome; 5. Diagnosed coagulant function abnormality (e.g. clotting factor deficiency, clotting hemorrhagic disease, abnormal platelet function); 6. An acute febrile illness within 1 week prior to vaccination; 7. Subjects with influenza-like illness as defined by the presence of fever (temperature = 38.0°C). 8. Female subjects who are pregnant, lactating or likely to become pregnant during the study; also women of childbearing potential who disagree to use an acceptable method of contraception (e.g. hormonal contraceptives, IUD, barrier device or abstinence) throughout the study; 9. Presence of evidence of substance abuse or of neurological or psychiatric diagnoses which, although stable, are deemed by the investigator to render the potential subject unable/unlikely to provide accurate safety reports; 10. Treatment with an investigational drug or device within 3 months prior to study vaccination; 11. Any confirmed or suspected immunosuppressive or immunodeficient condition including history of human immunodeficiency virus (HIV) infection; 12. Chronic administration (defined as more than 14 days in total) of immunosuppressant or other immune modifying drugs within 6 months of study enrolment or planned administration during the study period. For corticosteroids, this will mean a dose equivalent to = 20 mg/day of prednisone or equivalent for persons for > 2 weeks. Inhaled and topical steroids are allowed; 13. Receipt of live virus vaccine (both licensed and investigated) within 1 month prior to study vaccine or expected receipt within 1 month after study vaccination; receipt of any inactivated vaccine (both licensed and investigated) within 2 weeks prior to study vaccination or expected receipt within 1 month after study vaccination; 14. Receipt of any blood products, including immunoglobulin, within 3 months prior to study vaccination, which might interfere with assessment of the immune response; 15. Underlying condition which in the investigators’ opinion may interfere with evaluation of the study vaccine or prevents the subject from participating in the study.

Design outcomes

Primary

MeasureTime frame
Main Objective: To demonstrate the immunological non-inferiority of AdimFlu-S (QIS) compared to FluarixTetra in terms of GMT of HAI antibodies and seroconversion rates (SCRs) against the 4 virus strains at 21 days post-immunization on the whole study population (i.e. non-elderly and elderly subjects together);Secondary Objective: - To demonstrate the immunological non-inferiority of AdimFlu-S (QIS) compared to FluarixTetra in terms of GMT of HAI antibodies and SCR against the 4 virus strains at 21 days post-immunization according to 2 age categories (18-64 years old and =65 years old). - To describe the immunogenicity of AdimFlu-S (QIS) and FluarixTetra in terms of GMTs and SPR at Day 0, 21 and 180 and SCR and GMTR at Day 21 and 180 in overall and each age subgroup (non-elderly 18-64 years old and elderly =65 years old). - To demonstrate lot-to-lot consistency for AdimFlu-S (QIS) in terms of GMT of HAI antibody titers against the 4 vaccine strains at 21 days postimmunization. - To evaluate the short term reactogenicity and safety and long term safety after administration of AdimFlu-S (QIS) overall and in each age subgroup (non-elderly 18-64 years old and elderly =65 years old).;Primary end point(s): GMT of HAI antibodies and seroconversion rates (SCRs) against the 4 virus strains at 21 days post-immunization on the whole study population.;Timepoint(s) of evaluation of this end point: 21 days post-immunization

Secondary

MeasureTime frame
Secondary end point(s): Demonstration of lot-to-lot consistency Immunogenicity of AdimFlu-S (QIS) and Fluarix Tetra in terms of HAI antibody titers: serum anti-hemagglutinin antibody against the four vaccine strains at baseline and 21 days and 180 days after vaccination expressed as these endpoints: - GMT at D0, D21 and D180; - Individual post (D21 or D180) - to pre (D0)-vaccination GMTRs; - SPR at D0, D21 and D180, seroprotection being defined as an HAI titer =1:40; - SCR at D21 and D180, seroconversion being defined as: *Either a pre-vaccination titer<1:10 and a post-vaccination titer =1:40, or *A pre-vaccination titer =1:10 and a =4-fold increase in post-vaccination titer. Description and comparison of immunogenicity of AdimFlu-S (QIS) and FluarixTetra in terms of VN or MN antibody titers at D0, D21 and D180 (30% of total subjects).;Timepoint(s) of evaluation of this end point: D21 and D180

Countries

Belgium, Taiwan

Contacts

Public ContactDr. Today Su

Adimmune Corporation

Today_su@adimmune.com.tw8862270938335236

Outcome results

None listed

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