Safety and Immunogenicity of Different Formulations of an MF59-Adjuvanted Influenza Vaccine in Older Adults ≥50 Years of Age

NCT ID: NCT05501561

Last Updated: 2024-04-03

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE2

Total Enrollment

1056 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-08-25

Study Completion Date

2023-03-31

Brief Summary

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This Phase 2, randomized, observer-blind, dose-confirmation Clinical study is evaluating different formulations of MF59-Adjuvanted Quadrivalent Subunit Inactivated Influenza Vaccine. Approximately 1000 subjects are to be randomized into 1 of 4 possible treatment groups with 250 participants per group. Every participant will receive an influenza vaccine injection on Day 1 and will be followed up for approximately 6 months following injection. The primary immunogenicity analysis is based on Day 29 serology data.

Detailed Description

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Conditions

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Influenza, Human

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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IIV-A Investigational

Group Type EXPERIMENTAL

Experimental: IIV-A Investigational IIV-A will be administered as a single dose intramuscularly on Day 1

Intervention Type BIOLOGICAL

Biological/Vaccine: Investigational IIV-A Investigational 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.

aIIV-B Investigational

Group Type EXPERIMENTAL

Experimental: aIIV-B Investigational aIIV-B will be administered as a single dose intramuscularly on Day 1

Intervention Type BIOLOGICAL

Biological/Vaccine: Investigational aIIV-B 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.

aIIV-C Investigational

Group Type EXPERIMENTAL

Experimental: aIIV-C Investigational aIIV-C will be administered as a single dose intramuscularly on Day 1

Intervention Type BIOLOGICAL

Biological/Vaccine: Investigational aIIV-C 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.

Licensed IIV

Group Type ACTIVE_COMPARATOR

Active Comparator: Licensed IIV IIV will be administered as a single dose intramuscularly on Day 1

Intervention Type BIOLOGICAL

Biological/Vaccine: Licensed IIV Licensed Non-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.

Interventions

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Active Comparator: Licensed IIV IIV will be administered as a single dose intramuscularly on Day 1

Biological/Vaccine: Licensed IIV Licensed Non-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 BIOLOGICAL

Experimental: IIV-A Investigational IIV-A will be administered as a single dose intramuscularly on Day 1

Biological/Vaccine: Investigational IIV-A Investigational 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 BIOLOGICAL

Experimental: aIIV-B Investigational aIIV-B will be administered as a single dose intramuscularly on Day 1

Biological/Vaccine: Investigational aIIV-B 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 BIOLOGICAL

Experimental: aIIV-C Investigational aIIV-C will be administered as a single dose intramuscularly on Day 1

Biological/Vaccine: Investigational aIIV-C 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 BIOLOGICAL

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.

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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 consent5.
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 informed consent.
10. Receipt of any COVID-19 vaccine within 14 days (non-replicating vaccines) or 28 days (replicating vaccines) prior to informed consent or plan to receive any COVID-19 vaccine within 7 days from study vaccination
11. Individuals who received any other vaccines within 14 days (for inactivated vaccines) or 28 days (for live vaccines) prior to informed consent or who are planning to receive any vaccine within 28 days from the study vaccines.
12. Study personnel or immediate family or household member of study personnel.
13. Receipt of any influenza vaccine within 6 months prior to informed consent, or plan to receive an influenza vaccine during the study period.
14. Acute (severe) febrile illness,
15. 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.

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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

Locations

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AMR Tempe

Tempe, Arizona, United States

Site Status

Marvel Clinical Research

Huntington Beach, California, United States

Site Status

California Research Center

San Diego, California, United States

Site Status

The Lynn Institute of The Rockies

Colorado Springs, Colorado, United States

Site Status

Clinical Research Consulting, LLC

Milford, Connecticut, United States

Site Status

Innovative Research of West Florida, Inc.

Clearwater, Florida, United States

Site Status

Velocity Clinical Research - New Smyrna Beach

Edgewater, Florida, United States

Site Status

CenExel RCA

Hollywood, Florida, United States

Site Status

Health Awareness INC

Jupiter, Florida, United States

Site Status

Global Health Research Center

Miami Lakes, Florida, United States

Site Status

Precision Clinical Research

Sunrise, Florida, United States

Site Status

Global Health Research Center

Tampa, Florida, United States

Site Status

Platinum Research Network, LLC

Savannah, Georgia, United States

Site Status

Meridian Clinical Research - Savannah

Savannah, Georgia, United States

Site Status

AMR El Dorado

El Dorado, Kansas, United States

Site Status

AMR Lexington

Lexington, Kentucky, United States

Site Status

Meridian Clinical Research

Baton Rouge, Louisiana, United States

Site Status

Medpharmics, LLC

Metairie, Louisiana, United States

Site Status

Rockville Internal Medicine Group

Rockville, Maryland, United States

Site Status

MedPharmics LLC

Biloxi, Mississippi, United States

Site Status

Healthcare Research Network

Hazelwood, Missouri, United States

Site Status

The Center for Pharmaceutical Research

Kansas City, Missouri, United States

Site Status

Sundance Clinical Research, LLC

St Louis, Missouri, United States

Site Status

Meridian Clinical Research

Bellevue, Nebraska, United States

Site Status

Meridian Clinical Research

Grand Island, Nebraska, United States

Site Status

Meridian Clinical Research, LLC

Lincoln, Nebraska, United States

Site Status

Alliance for Multispecialty Research, LLC, Las Vegas

Las Vegas, Nevada, United States

Site Status

Meridian Clinical Research (Binghamton, NY)

Binghamton, New York, United States

Site Status

Meridian Clinical Research, LLC

Endwell, New York, United States

Site Status

Velocity Clinical Research - Syracuse

Syracuse, New York, United States

Site Status

M3 Wake Research, Inc.

Raleigh, North Carolina, United States

Site Status

Meridian Clinical Research, LLC

Cincinnati, Ohio, United States

Site Status

Meridian Clinical Research, LLC

Cincinnati, Ohio, United States

Site Status

Aventiv Research, Inc. Columbus

Columbus, Ohio, United States

Site Status

Lynn Health Science Institute

Oklahoma City, Oklahoma, United States

Site Status

Velocity Clinical Research - Medford

Medford, Oregon, United States

Site Status

Velocity Clinical Research, Gaffney

Gaffney, South Carolina, United States

Site Status

Velocity Clinical Research - Greenville

Greenville, South Carolina, United States

Site Status

Velocity Clinical Research, Spartanburg

Spartanburg, South Carolina, United States

Site Status

Meridian Clinical Research - Dakota Dunes

Dakota Dunes, South Dakota, United States

Site Status

AMR Coastal Clinical Research

Knoxville, Tennessee, United States

Site Status

DM Clinical Research

Tomball, Texas, United States

Site Status

JBR Clinical Research

Salt Lake City, Utah, United States

Site Status

Velocity Clinical Research - West Jordan

West Jordan, Utah, United States

Site Status

CVS pharmacy - Charlottesville

Charlottesville, Virginia, United States

Site Status

CVS pharmacy - Reston

Reston, Virginia, United States

Site Status

CVS pharmacy - Richmond

Richmond, Virginia, United States

Site Status

Countries

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United States

Other Identifiers

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V201_07

Identifier Type: -

Identifier Source: org_study_id

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