Safety and Immunogenicity of Different Formulations of an MF59-Adjuvanted Influenza Vaccine in Older Adults

NCT ID: NCT04782323

Last Updated: 2024-10-10

Study Results

Results available

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE2

Total Enrollment

839 participants

Study Classification

INTERVENTIONAL

Study Start Date

2021-04-13

Study Completion Date

2022-03-03

Brief Summary

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This Phase 2, randomized, observer-blind, antigen and adjuvant dose-ranging Clinical study is evaluating different formulations of MF59-Adjuvanted Quadrivalent Subunit Inactivated Influenza Vaccine. Approximately 800 subjects are to be randomized into 1 of 8 possible treatment groups. Immunogenicity and safety will be assessed in the overall study population (adults ≥50 years and above) and in the age subgroups ≥50-64 years and ≥65 years. Data from this study will be used to select the optimal dose to be tested in the pivotal Phase 3 immunogenicity and safety study in older adults.

Disclosure Statement: This is a parallel-group dose-ranging study with 8 arms that is participant, investigator and observer-blinded.

Detailed Description

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Conditions

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Influenza

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

TRIPLE

Participants Caregivers Investigators
This is a parallel-group dose-ranging study with 8 arms that is participant, investigator and observer-blinded

Study Groups

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Group A aQII-1 Investigational

Group Type EXPERIMENTAL

aQII-1

Intervention Type DRUG

Biological/Vaccine: Investigational aQII-1 Investigational MF59 Adjuvanted Quadrivalent Influenza vaccine, containing four influenza virus strains (A/H1N1, A/H3N2, B/Yamagata and Victoria lineage) recommended by the WHO (World Health Organization) for quadrivalent vaccines for the respective season.

Group B aQII-3 Investigational

Group Type EXPERIMENTAL

aQII-3 Investigational

Intervention Type DRUG

Biological/Vaccine: Investigational aQII-3 Investigational MF59 Adjuvanted Quadrivalent Influenza vaccine, containing four influenza virus strains (A/H1N1, A/H3N2, B/Yamagata and Victoria lineage) recommended by the WHO (World Health Organization) for quadrivalent vaccines for the respective season.

Group C aQII-6 Investigational

Group Type EXPERIMENTAL

aQII-6 Investigational

Intervention Type DRUG

Biological/Vaccine: Investigational aQII-6 Investigational MF59 Adjuvanted Quadrivalent Influenza vaccine, containing four influenza virus strains (A/H1N1, A/H3N2, B/Yamagata and Victoria lineage) recommended by the WHO (World Health Organization) for quadrivalent vaccines for the respective season.

Group D aQII-7 Investigational

Group Type EXPERIMENTAL

aQII-7 Investigational

Intervention Type OTHER

Biological/Vaccine: Investigational aQII-7 Investigational MF59 Adjuvanted Quadrivalent Influenza vaccine, containing four influenza virus strains (A/H1N1, A/H3N2, B/Yamagata and Victoria lineage) recommended by the WHO (World Health Organization) for quadrivalent vaccines for the respective season.

Group E aQII-9 Investigational

Group Type EXPERIMENTAL

aQII-9 Investigational

Intervention Type DRUG

Biological/Vaccine: Investigational aQII-9 Investigational MF59 Adjuvanted Quadrivalent Influenza vaccine, containing four influenza virus strains (A/H1N1, A/H3N2, B/Yamagata and Victoria lineage) recommended by the WHO (World Health Organization) for quadrivalent vaccines for the respective season.

Group F aQII-10 Investigational

Group Type EXPERIMENTAL

aQII-10 Investigational

Intervention Type DRUG

Biological/Vaccine: Investigational aQII-10 Investigational MF59 Adjuvanted Quadrivalent Influenza vaccine, containing four influenza virus strains (A/H1N1, A/H3N2, B/Yamagata and Victoria lineage) recommended by the WHO (World Health Organization) for quadrivalent vaccines for the respective season.

Group G aQII-11 Investigational

Group Type EXPERIMENTAL

aQII-11 Investigational

Intervention Type DRUG

Biological/Vaccine: Investigational aQII-11 Investigational MF59 Adjuvanted Quadrivalent Influenza vaccine, containing four influenza virus strains (A/H1N1, A/H3N2, B/Yamagata and Victoria lineage) recommended by the WHO (World Health Organization) for quadrivalent vaccines for the respective season.

Group H Licensed QII Active Comparator

Group Type ACTIVE_COMPARATOR

Licensed QII Active Comparator

Intervention Type DRUG

Biological/Vaccine: Licensed QII Licensed Quadrivalent Influenza vaccine, containing four influenza virus strains (A/H1N1, A/H3N2, B/Yamagata and Victoria lineage) recommended by the WHO (World Health Organization) for quadrivalent vaccines for the respective season.

Interventions

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aQII-1

Biological/Vaccine: Investigational aQII-1 Investigational MF59 Adjuvanted Quadrivalent Influenza vaccine, containing four influenza virus strains (A/H1N1, A/H3N2, B/Yamagata and Victoria lineage) recommended by the WHO (World Health Organization) for quadrivalent vaccines for the respective season.

Intervention Type DRUG

aQII-3 Investigational

Biological/Vaccine: Investigational aQII-3 Investigational MF59 Adjuvanted Quadrivalent Influenza vaccine, containing four influenza virus strains (A/H1N1, A/H3N2, B/Yamagata and Victoria lineage) recommended by the WHO (World Health Organization) for quadrivalent vaccines for the respective season.

Intervention Type DRUG

aQII-6 Investigational

Biological/Vaccine: Investigational aQII-6 Investigational MF59 Adjuvanted Quadrivalent Influenza vaccine, containing four influenza virus strains (A/H1N1, A/H3N2, B/Yamagata and Victoria lineage) recommended by the WHO (World Health Organization) for quadrivalent vaccines for the respective season.

Intervention Type DRUG

aQII-7 Investigational

Biological/Vaccine: Investigational aQII-7 Investigational MF59 Adjuvanted Quadrivalent Influenza vaccine, containing four influenza virus strains (A/H1N1, A/H3N2, B/Yamagata and Victoria lineage) recommended by the WHO (World Health Organization) for quadrivalent vaccines for the respective season.

Intervention Type OTHER

aQII-9 Investigational

Biological/Vaccine: Investigational aQII-9 Investigational MF59 Adjuvanted Quadrivalent Influenza vaccine, containing four influenza virus strains (A/H1N1, A/H3N2, B/Yamagata and Victoria lineage) recommended by the WHO (World Health Organization) for quadrivalent vaccines for the respective season.

Intervention Type DRUG

aQII-10 Investigational

Biological/Vaccine: Investigational aQII-10 Investigational MF59 Adjuvanted Quadrivalent Influenza vaccine, containing four influenza virus strains (A/H1N1, A/H3N2, B/Yamagata and Victoria lineage) recommended by the WHO (World Health Organization) for quadrivalent vaccines for the respective season.

Intervention Type DRUG

aQII-11 Investigational

Biological/Vaccine: Investigational aQII-11 Investigational MF59 Adjuvanted Quadrivalent Influenza vaccine, containing four influenza virus strains (A/H1N1, A/H3N2, B/Yamagata and Victoria lineage) recommended by the WHO (World Health Organization) for quadrivalent vaccines for the respective season.

Intervention Type DRUG

Licensed QII Active Comparator

Biological/Vaccine: Licensed QII Licensed Quadrivalent Influenza vaccine, containing four influenza virus strains (A/H1N1, A/H3N2, B/Yamagata and Victoria lineage) recommended by the WHO (World Health Organization) for quadrivalent vaccines for the respective season.

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

1. Individuals ≥50 years of age on the day of informed consent.
2. Individuals who have voluntarily given written consent after the nature of the study has been explained according to local regulatory requirements, prior to study entry.
3. Individuals who can comply with study procedures including follow-up .
4. Males, females of non-childbearing potential or females of childbearing potential who are using an effective birth control method, at least 30 days prior to informed consent, which they intend to use for at least 2 months after the study vaccination.

Exclusion Criteria

1. Females of childbearing potential who are pregnant, lactating, or who have not adhered to a specified set of contraceptive methods from at least 30 days prior to informed consent and who do not plan to do so for at least 2 months after the study vaccination.
2. Progressive, unstable or uncontrolled clinical conditions.
3. Hypersensitivity, including allergy, to any component of vaccines whose use is foreseen in this study.
4. History of any medical condition considered an adverse event of special interest (AESI).
5. Known history of Guillain-Barré syndrome or another demyelinating disease such as encephalomyelitis and transverse myelitis.
6. Clinical conditions representing a contraindication to intramuscular administration of vaccines or blood draw.
7. Abnormal function of the immune system resulting from:

1. Clinical conditions.
2. Systemic administration of corticosteroids (PO/IV/IM) at a dose of ≥20 mg/day of prednisone or equivalent for more than 14 consecutive days within 90 days prior to informed consent.
3. Administration of antineoplastic and immunomodulating agents or radiotherapy within 90 days prior to informed consent.
8. Receipt of immunoglobulins or any blood products within 180 days prior to informed consent.
9. Receipt of an investigational or non-registered medicinal product within 30 days prior to vaccination.
10. Individuals who received any other vaccines within 14 days (for inactivated vaccines) or 28 days (for live vaccines) prior to enrolment in this study or who are planning to receive any vaccine within 28 days from the study vaccines.
11. Study personnel or immediate family or household member of study personnel.
12. Receipt of any influenza vaccine within 6 months prior to vaccination in this study, or plan to receive an influenza vaccine during the study period.
13. Acute (severe) febrile illness.
14. Any other clinical condition that, in the opinion of the investigator, might interfere with the results of the study or pose additional risk to the subject due to participation in the study.
Minimum Eligible Age

50 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Seqirus

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Therapeutic Area Head

Role: STUDY_CHAIR

Seqirus

Locations

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03607 - PCRN_Paratus Clinical Research

Bruce, Australian Capital Territory, Australia

Site Status

03605 - PCRN_Paratus Clinical Research (Central Coast)

Blacktown, New South Wales, Australia

Site Status

3610- Emeritis Research

Botany, New South Wales, Australia

Site Status

3609 - Northern Beaches Clinical Research [NSW]

Brookvale, New South Wales, Australia

Site Status

03602 - PCRN_Paratus Clinical Research,(Western Sydney) [NSW]

Kanwal, New South Wales, Australia

Site Status

03608 - Australian Clinical Research Network - ACRN [NSW]

Maroubra, New South Wales, Australia

Site Status

03604 - University of the Sunshine Coast Clinical Trials Centre

Morayfield, Queensland, Australia

Site Status

03603 - University of the Sunshine Coast

Sippy Downs, Queensland, Australia

Site Status

03601 - AusTrials Taringa [QLD]

Taringa, Queensland, Australia

Site Status

03606 - AusTrials Tarragindi (Aus Trial Wellers Hill)[QLD]

Tarragindi, Queensland, Australia

Site Status

3611 - The University of Melbourne Peter Doherty Institute for Infection and Immunity

Melbourne, Victoria, Australia

Site Status

55402- PCRN_Southern Clinical Trials Waitemata

Birkenhead, Auckland, New Zealand

Site Status

55401- PCRN_Southern Clinical Trials Totara

New Lynn, Auckland, New Zealand

Site Status

55406 - Optimal Clinical Trials

Auckland, , New Zealand

Site Status

55404- PCRN_Southern Clinical Trials Christchurch

Christchurch, , New Zealand

Site Status

55403-PCRN_Lakeland Clinical Trials Waikato

Hamilton, , New Zealand

Site Status

55405 - PCRN_Lakeland Clinical Trials

Rotorua, , New Zealand

Site Status

60801 - De La Salle Medical and Health Sciences Institute

Dasmariñas, Cavite, Philippines

Site Status

60802 - West Visayas University Medical Center

Jaro, Iloilo City, Philippines

Site Status

60805 - Manila Doctors' Hospital

Ermita, Manila, Philippines

Site Status

60804 - Quirino Memorial Medical Center

Quezon City, Quezon, Philippines

Site Status

60803 - Philippine General Hospital

Manila, , Philippines

Site Status

71003- Newtown Clinical Research

Newtown, Johannesburg, South Africa

Site Status

71005 South Africa Haylene71005 - Tiervlei Trial Centre -- Karl Bremer Hospital

Bellville, , South Africa

Site Status

71002 - JOSHA Research

Bloemfontein, , South Africa

Site Status

71011 - Farmovs

Bloemfontein, , South Africa

Site Status

71004 - Tread Research -- Tygerberg Hospital

Cape Town, , South Africa

Site Status

71006 - Mzansi Ethical Research Centre (MERC)

Mpumalanga, , South Africa

Site Status

71009 - Be Part Yoluntu Centre

Paarl, , South Africa

Site Status

71001 - Wits Clinical Researc - Chris Hani Baragwanath Academic Hospital

Soweto, , South Africa

Site Status

Countries

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Australia New Zealand Philippines South Africa

Provided Documents

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Document Type: Study Protocol

View Document

Document Type: Statistical Analysis Plan

View Document

Other Identifiers

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V201_01

Identifier Type: -

Identifier Source: org_study_id

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