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Inactivated, Split-Virion Influenza Virus

Phase 3

Orthomyxoviridae Infection | Vaccine | Infectious Disease |Sanofi|Last Updated: Apr 14, 2016

Target and mechanism

ModalityVaccine

Also known as Inactivated, split-virion influenza vaccine, Inactivated, split-virion, influenza vaccine, High-Dose Inactivated, Split-Virion Influenza Vaccine

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindACTIVE_CONTROLLEDDMC
Total Trials3
Total Enrollment8,638

FDA Designations

No designations recorded

Clinical trial landscape

Inactivated, Split-Virion Influenza Virus · 8 trials · 5 indications

Phase 3 2Phase 2 6
NCT00391053Immunogenicity of High-dose Inactivated, Split-virion Influenza Vaccine Versus Standard Fluzone Vaccine in the ElderlyOrthomyxoviridae Infection
COMPLETED3,851 Analytics
NCT00383526Study of Inactivated, Split-Virion Influenza Vaccine Compared With the Reference Vaccine Vaxigrip® in the ElderlyOrthomyxoviridae Infection
COMPLETED3,707 Analytics
PHASE3COMPLETED
Immunogenicity of High-dose Inactivated, Split-virion Influenza Vaccine Versus Standard Fluzone Vaccine in the Elderly
Orthomyxoviridae InfectionUnlock trial analytics
PHASE3COMPLETED
Study of Inactivated, Split-Virion Influenza Vaccine Compared With the Reference Vaccine Vaxigrip® in the Elderly
Orthomyxoviridae InfectionUnlock trial analytics

Study Endpoints

Primary Endpoints

Geometric Mean Titers (GMTs) of Hemagglutination Inhibition Antibody Titers Pre- and Post-vaccination With Fluzone® High Dose or Standard Fluzone® Vaccines.
Day 0 and Day 28 Post-vaccination

Antibodies against each of three Influenza antigens (virus) in Fluzone® High-Dose and Standard Fluzone® vaccines (A/H1N1 New-Caledonia; A/H3N2 Wisconsin; and B Malaysia) were determined by the Hemagglutination inhibition assay method.

Percentage of Participants With Seroconversion Post-vaccination With Fluzone® High-Dose or Standard Fluzone® Vaccines.
Day 28 Post-vaccination

Seroconversion was defined as a Hemagglutination Inhibition Antibody Titers of Titer ≥40 (1/dil) on Day 28 if pre-vaccination (Day 0) titer \<10 (1/dil); or a four-fold increase of titer on Day 28, if pre-vaccination (Day 0) titer is ≥10 (1/dil) for each of the three Influenza vaccine antigens (A/H1N1 New-Caledonia; A/H3N2 Wisconsin; and B Malaysia).

To provide information concerning the immunogenicity of Inactivated, Split-Virion Influenza vaccine
21 days post-vaccination
Anti-HA individual titers
21 Days Post-vaccination 2
Individual titers ratio
21 Days Post-vaccination 2
Seroconversion or significant increase
21 Days Post-vaccination 2
To provide information concerning immune response to an inactivated, split-virion, influenza vaccine.
21 days post-vaccination
To provide information concerning the safety of inactivated, split-virion, influenza vaccine.
21 days post-vaccination and entire study duration
Solicited Injection Site and Solicited Systemic Reactions Post-vaccination.
0-3 days post-vaccination and entire study duration

Information concerning the safety of Fluzone® vaccine 2007-2008 formulation.

Geometric Mean Titers (GMTs) of Hemagglutination Inhibition Antibodies Pre-vaccination and Post-vaccination.
21 days post-vaccination

GMTs and their 95% Confidence Interval are presented for each of the 3 antigens in the Fluzone® Vaccine 2007-2008 formulation.

To provide information concerning the immunogenicity of influenza vaccination.
21 Days and 2 Years post-vaccination 1
To provide information concerning the immunogenicity of Inactivated, Split-Virion Influenza Vaccine.
21days post-vaccination
To provide information concerning the safety of Inactivated, Split-Virion Influenza Vaccine
21 days post-vaccination and entire study duration

Secondary Endpoints

Percentage of Participants With Seroprotection Pre- and Post-Vaccination With Fluzone® High-Dose or Standard Fluzone® Vaccines.
Day 0 and Day 28 Post-vaccination
Percentage of Participants Reporting Solicited Injection Site and Systemic Reactions After Fluzone® High-Dose or Standard Fluzone® Vaccination
Day 0 to Day 7 Post-vaccination
To provide information concerning the safety of Inactivated, Split-Virion Influenza vaccine
Entire study period
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposePREVENTION

Treatment Arms

ArmTypeDescription
Study Group 1EXPERIMENTALParticipants will receive the High-Dose Inactivated, Split-Virion Influenza Vaccine Lot 1
Study Group 2EXPERIMENTALParticipants will receive the High-Dose Inactivated, Split-Virion Influenza Vaccine Lot 2
Study Group 3EXPERIMENTALParticipants will receive the High-Dose Inactivated, Split-Virion Influenza Vaccine Lot 3
Group 4ACTIVE_COMPARATORParticipants will receive the Standard Fluzone® vaccine
Study Group 4EXPERIMENTALElderly, age 60 to 85 years
Study GroupEXPERIMENTAL -
1EXPERIMENTAL -
2ACTIVE_COMPARATOR -
3ACTIVE_COMPARATOR -

Interventions

NameTypeDescription
High-Dose Inactivated, Split-Virion Influenza VaccineBIOLOGICAL0.5 mL, IM
Inactivated, Split-Virion Influenza VaccineBIOLOGICAL0.5 mL, IM
Inactivated, split-virion influenza virusBIOLOGICAL0.1 mL, Intradermal. 2 vaccinations 12 months apart
Inactivated, split-virion, influenza vaccineBIOLOGICAL0.1 mL, Intradermal
Inactivated, split-virion, influenza virusBIOLOGICAL0.5 mL single annual dose
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Eligibility Criteria

Age Range65 Years to N/A
SexALL
Healthy VolunteersYes
Study Sites28

Inclusion Criteria: * Aged ≥ 65 years on the day of vaccination. * Informed consent form signed. * Medically stable. (Subjects may have underlying chronic conditions such as hypertension, diabetes, ischemic heart disease, or hypothyroidism, as long as their symptoms/signs are controlled. If they ar...

Countries:United StatesBelgiumFranceItalyLithuaniaAustraliaNew ZealandGermanySwitzerlandCzechia
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Frequently asked questions about Inactivated, Split-Virion Influenza Virus

What is Inactivated, Split-Virion Influenza Virus?

Inactivated, Split-Virion Influenza Virus is an injectable influenza vaccine candidate developed by Sanofi. It is designed to stimulate immune response against influenza and related Orthomyxoviridae infections. The vaccine is in Phase 2 clinical development and has been studied in adults, elderly subjects, and renal transplant recipients.

Who makes Inactivated, Split-Virion Influenza Virus?

Sanofi, which trades under the ticker SNY, develops Inactivated, Split-Virion Influenza Virus. Sanofi has sponsored four completed Phase 2 trials of the vaccine, including studies conducted in France, Belgium, Czechia, Lithuania, and the United States.

What phase is Inactivated, Split-Virion Influenza Virus in?

Inactivated, Split-Virion Influenza Virus is in Phase 2 clinical development. All four of its recorded trials are Phase 2 studies and all four are completed, with no active trials currently listed. The vaccine is investigational and has not been approved by the FDA.

What clinical trials is Inactivated, Split-Virion Influenza Virus in?

Four completed Phase 2 trials have evaluated Inactivated, Split-Virion Influenza Virus: NCT00776438 in adults and elderly subjects, NCT00703651 comparing intradermal administration with Vaxigrip in adults, NCT00606359 in renal transplant subjects, and NCT00524940 describing safety and immunogenicity of Fluzone. Together these trials enrolled 8,638 participants.

Is Inactivated, Split-Virion Influenza Virus the same as Fluzone or Vaxigrip?

Inactivated, Split-Virion Influenza Virus is also known as inactivated, split-virion influenza vaccine and high-dose inactivated, split-virion influenza vaccine. Its clinical program includes a trial of Fluzone and a trial comparing intradermal administration against Vaxigrip, both of which are influenza vaccine products.

How were the Inactivated, Split-Virion Influenza Virus trials designed?

The Phase 2 trials of Inactivated, Split-Virion Influenza Virus were randomized, double-blind, and active-controlled, with no biomarker-based patient selection. They enrolled adults aged 18 years and older of all sexes, including healthy volunteers, and evaluated immune response, safety, and immunogenicity across a combined 8,638 participants.