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Split, Inactivated, Trivalent Influenza Vaccine

Phase 2

Influenza | Vaccine | Infectious Disease |Sanofi|Last Updated: May 16, 2016

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindACTIVE_CONTROLLEDDMC
Total Trials1
Total Enrollment2,098

FDA Designations

No designations recorded

Clinical trial landscape

Split, Inactivated, Trivalent Influenza Vaccine · 3 trials · 3 indications

Phase 2 3
NCT00551031Study of Inactivated, Split-Virion Influenza Vaccine and Standard Fluzone® Vaccine in Adult and Elderly SubjectsInfluenza
COMPLETED2,098 Analytics
NCT00391391Study of Inactivated, Split-Virion Influenza Vaccine Compared With Standard Fluzone Vaccine in Infants and ChildrenOrthomyxoviridae Infection
COMPLETED520 Analytics
NCT00388583Study of Inactivated, Split-Virion Influenza Vaccine Compared With Standard Fluzone Vaccine in Elderly SubjectsOrthomyxoviridae Infection
COMPLETED817 Analytics
PHASE2COMPLETED
Study of Inactivated, Split-Virion Influenza Vaccine and Standard Fluzone® Vaccine in Adult and Elderly Subjects
InfluenzaUnlock trial analytics
PHASE2COMPLETED
Study of Inactivated, Split-Virion Influenza Vaccine Compared With Standard Fluzone Vaccine in Infants and Children
Orthomyxoviridae InfectionUnlock trial analytics
PHASE2COMPLETED
Study of Inactivated, Split-Virion Influenza Vaccine Compared With Standard Fluzone Vaccine in Elderly Subjects
Orthomyxoviridae InfectionUnlock trial analytics

Study Endpoints

Primary Endpoints

Geometric Mean Titers (GMTs) Before and After Vaccination With Fluzone Intradermal or Fluzone High Dose or Fluzone Intramuscular Vaccine.
Day 0 and Day 28 post vaccination

Serum antibody titers for the Influenza vaccine serogroups A/H1N1, A/H3N2, and B were assessed by hemagglutinin inhibition (HAI) assay.

Percentage of Participants Who Achieved Seroconversion Post-Vaccination With Fluzone Intradermal or Fluzone High Dose or Fluzone Intramuscular Vaccine
Day 28 post-vaccination

Seroconversion defined as either a pre-vaccination hemagglutination inhibition (HAI) titer \< 1:10 and a post vaccination titer ≥ 1:40, or a pre-vaccination titer ≥ 1:10 and a minimum four fold increase at one month post-vaccination.

Percentage of Participants Who Achieved Seroprotection Before and Post-vaccination With Fluzone Intradermal or Fluzone High Dose or Fluzone Intramuscular Vaccine.
Day 0 and Day 28 post-vaccination

Seroprotection was defined as a Hemagglutination inhibition (HAI) titer ≥ 1:40

Geometric Mean Titers (GMTs) Before and Post Vaccination With Either a Fluzone Intradermal or a Fluzone Intramuscular Vaccine
Day 0 and Day 28 post-vaccination

Antibody titers against each strain of influenza hemagglutinin were measured in the sera using the hemagglutination inhibition (HI) technique.

Number of Participants With at Least a 4-Fold Increase in Serum HAI Antibody Titer Post-vaccination With Either Fluzone Intradermal or Fluzone Intramuscular Vaccine.
Pre-vaccination and Day 28 post-vaccination

The serological determinations of total anti-influenza antibodies were performed using an Hemagglutinin inhibition (HAI) test.

Number of Participants Who Achieved Seroprotection Post-vaccination With Either Fluzone Intradermal or Fluzone Intramuscular Vaccine.
Day 28 post-vaccination

Seroprotection was defined as a post-vaccination Hemagglutinin inhibition (HAI) antibody titer ≥ 40

Secondary Endpoints

Number of Participants Reporting Solicited Injection Site or Systemic Reactions Post-vaccination With Either Fluzone Intradermal or Fluzone High Dose or Fluzone Intramuscular Vaccine.
Days 0 through 7 post-vaccination
Percentage of Participants That Achieved A 4-Fold Rise in Serum HAI Antibody Titer Post-vaccination With Either a Fluzone Intradermal or a Fluzone Intramuscular Vaccine
Day 28 post-vaccination
Percentage of Participants That Achieved Seroprotection Before and Post-vaccination With Either a Fluzone Intradermal or a Fluzone Intramuscular Vaccine
Day 28 post-vaccination
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposePREVENTION

Treatment Arms

ArmTypeDescription
Influenza Virus Vaccine Formulation 1EXPERIMENTALInfluenza Virus Vaccine Formulation 1
Influenza Virus Vaccine Formulation 2EXPERIMENTALInfluenza Virus Vaccine Formulation 2
Fluzone® Elderly GroupACTIVE_COMPARATOR -
Fluzone® High-dose GroupACTIVE_COMPARATORParticipants enrolled at age ≥ 65 years
Fluzone® Adults GroupACTIVE_COMPARATORParticipants enrolled at age 18-49 years.
1EXPERIMENTALSplit, Inactivated, Trivalent Influenza Vaccine
2EXPERIMENTALSplit, Inactivated, Trivalent Influenza Vaccine
3ACTIVE_COMPARATORSplit, Inactivated, Trivalent Influenza Vaccine
4ACTIVE_COMPARATORSplit, Inactivated, Trivalent Influenza Vaccine
Fluzone Intradermal (ID) Vaccine GroupEXPERIMENTALParticipants received a dose of Fluzone Intradermal (ID) Influenza Vaccine
Fluzone Intramuscular (IM) Vaccine GroupACTIVE_COMPARATORParticipants received a dose of Fluzone Intramuscular (IM) Influenza Vaccine.

Interventions

NameTypeDescription
Split, Inactivated, Trivalent Influenza Vaccine (Intradermal Formulation 1)BIOLOGICAL0.1 mL, Intradermal (ID)
Split, Inactivated, Trivalent Influenza Vaccine (Intradermal Formulation 2)BIOLOGICAL0.1 mL, Intradermal (ID)
Split, Inactivated, Trivalent Influenza Vaccine (Standard dose)BIOLOGICAL0.5 mL, Intramuscular (IM)
Split, Inactivated, Trivalent Influenza Vaccine (High-dose)BIOLOGICAL0.5 mL, Intramuscular (IM)
Split, Inactivated, Trivalent Influenza VaccineBIOLOGICALVaccine (infant dose)
Split, Inactivated, Trivalent Influenza Vaccine ( Fluzone® 2006/2007 Formulation)BIOLOGICALVaccine (infant dose)
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersYes
Study Sites29

Inclusion Criteria: * Aged ≥ 65 years or aged 18 to 49 years on the day of vaccination. * Informed consent form signed. * Medically stable (Subjects may have underlying illnesses such as hypertension, diabetes, ischemic heart disease or hypothyroidism, as long as their symptoms/signs are controlled...

Countries:United States
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Frequently asked questions about Split, Inactivated, Trivalent Influenza Vaccine

What is Split, Inactivated, Trivalent Influenza Vaccine?

Split, Inactivated, Trivalent Influenza Vaccine is an investigational vaccine developed by Sanofi for the prevention of influenza and Orthomyxoviridae infection. It is a split, inactivated, trivalent formulation, meaning it contains three influenza virus strains that have been chemically disrupted. It is being studied in both adult and pediatric populations.

What is Split, Inactivated, Trivalent Influenza Vaccine used for?

Split, Inactivated, Trivalent Influenza Vaccine is being developed for the prevention of influenza and Orthomyxoviridae infection. It is intended to protect against three influenza virus strains. The vaccine is in Phase 2 clinical development and has been studied in adults, the elderly, and children.

Who makes Split, Inactivated, Trivalent Influenza Vaccine?

Split, Inactivated, Trivalent Influenza Vaccine is developed by Sanofi, which trades under the ticker SNY. Sanofi is the sponsor of the clinical trials evaluating this vaccine candidate.

What phase is Split, Inactivated, Trivalent Influenza Vaccine in?

Split, Inactivated, Trivalent Influenza Vaccine is in Phase 2 clinical development. It is an investigational vaccine and has not been approved by the FDA. The Phase 2 trials have been completed.

What clinical trials is Split, Inactivated, Trivalent Influenza Vaccine in?

Split, Inactivated, Trivalent Influenza Vaccine has been evaluated in two completed Phase 2 trials. NCT00551031 studied the vaccine in adult and elderly subjects, and NCT00391391 studied it in infants and children. Both trials were randomized, double-blind, and active-controlled, with a combined enrollment of 2,098 participants.