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Ad4-H5-Vtn

Phase 1

Bird Flu | Monoclonal antibody | Infectious Disease |Emergent BioSolutions Inc.|Last Updated: Mar 18, 2024

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedDouble-BlindCONTROLLEDDMC
Total Trials1
Total Enrollment166
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT01006798Safety and Immunogenicity of Replication-Competent Adenovirus 4-vectored Vaccine for Avian Influenza H5N1PHASE1 COMPLETED 166Oct 1, 2009Sep 1, 2011Mar 18, 20244 United States
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Study Endpoints
Primary Endpoints
Safety, defined as the frequency and severity of vaccine-related reactogenicity events and reported AEs
Throughout trial (reactogenicity for 7 days following each vaccination)
Immunogenicity (humoral) defined by H5 HAI titer
At all available timepoints
Secondary Endpoints
Immunogenicity (humoral), defined by Ad4 antibody response
At all available timepoints
Replication/excretion of Ad4-H5-Vtn virus
Throughout trial
Transmission to household contacts as measured by AE assessment and antibody response and viral replication/excretion
Throughout trial
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Study Design & Arms
AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposePREVENTION
Treatment Arms
ArmTypeDescription
Cohort 1EXPERIMENTALthree vaccinations of 10\^7vp Ad4-H5-Vtn or placebo
Cohort 2EXPERIMENTALthree vaccinations of the 10\^8vp Ad4-H5-Vtn or placebo
Cohort 3EXPERIMENTALthree vaccinations of 10\^9 Ad4-H5-Vtn or placebo
Cohort 4EXPERIMENTALthree vaccinations of 10\^10 Ad4-H5-Vtn or placebo
Cohort 5EXPERIMENTALthree vaccinations of 10\^11 Ad4-H5-Vtn or placebo
Interventions
NameTypeDescription
PlaceboOTHERenteric coated capsule containing no vaccine virus
Ad4-H5-VtnBIOLOGICALa live, replication-competent, recombinant Ad4 virus expressing the HA of H5N1 influenza (A/Vietnam/1194/2004) in an enteric capsule for oral administration
Sanofi Pasteur Influenza Virus Vaccine, H5N1BIOLOGICALSingle administration of a heterologous boost given to volunteers 3 to 15 months following their last vaccination with Ad4-H5-Vtn or placebo.
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Eligibility Criteria
Age Range18 Years — 40 Years
SexALL
Healthy VolunteersYes
Study Sites4

Inclusion Criteria: * Healthy adults and their healthy adult household contacts. Exclusion Criteria: * Healthcare workers who have direct contact with patients who are immunodeficient, are HIV-positive, have an unstable medical condition, or are under the age of 18. * Childcare workers who have d...

Countries:United States
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