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AVA

Phase 1

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

Success Probability

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Trial Design

RandomizedDouble-BlindACTIVE_CONTROLLEDDMC
Total Trials1
Total Enrollment120

FDA Designations

No designations recorded

Clinical trial landscape

AVA · 1 trial · 1 indication

Phase 1 1
NCT01979406A Phase 1 Ascending Dose Study to Assess the Safety and Immunogenicity of Adenovirus Anthrax Vector Candidate VaccinesAnthrax Infection
COMPLETED120 Analytics
PHASE1COMPLETED
A Phase 1 Ascending Dose Study to Assess the Safety and Immunogenicity of Adenovirus Anthrax Vector Candidate Vaccines
Anthrax InfectionUnlock trial analytics

Study Endpoints

Primary Endpoints

The safety, tolerability and immunogenicity of the Ad4 PA and Ad4 PA GPI vaccines across a range of dosages and schedules.
Day 1 through Day 211

Safety will be measured by looking at safety labs, Adverse Events (AEs) and vaccine reactogenicity data from Baseline through Day 211. Immunogenicity will be measured by the peak serum antibody response to the PA transgene defined as the highest toxin-neutralizing antibody (TNA) titer achieved by a subject at any time between the first post-vaccination visit though Day 85 (and Day 211 if Day 85 is positive).

Secondary Endpoints

Antibody response of the Ad4-PA formulation to Ad4 PA GPI
Day 1 through Day 85 (Day 211 if Day 85 is positive)
Antibody response of the Ad4-PA and Ad4-PA-GPI vaccination regimens to the anticipated AVA PEP regimen.
Days 1 through 85 (Day 211 if Day 85 is positive)
Antibody response induced by 3 different dosages of Ad4 PA and Ad4 PA GPI.
Days 1 through 85 (Day 211 if Day 85 is positive)
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelFACTORIAL
PurposePREVENTION

Treatment Arms

ArmTypeDescription
AVAACTIVE_COMPARATORAnthrax Vaccine Adsorbed (0.5 mL) as the placebo control on Days 1, 15 and 29
Ad4-PA-1EXPERIMENTALGiven at 10\^9, 10\^10 and 10\^11 vp Ad4-PA at Day 1 + oral placebo on Day 15 + AVA boost at Day 29
Ad4-PA-2EXPERIMENTALGiven at 10\^9, 10\^10 and 10\^11 vp Ad4-PA at Days 1, 15 and 29
Ad4-PA-3EXPERIMENTALAd4 given at 10\^9, 10\^10 and 10\^11 vp Ad4 PA-GPI at Day 1 + AVA boost at Day 15 + placebo on Day 29
Ad4-PA-GPI-1EXPERIMENTALGiven at 10\^9, 10\^10 and 10\^11 viral particles Ad4 PA-GPI at Day 1 + oral placebo on Day 29 + AVA boost at Day 15
Ad4 PA-GPI-2EXPERIMENTALGiven at 10\^9, 10\^10 and 10\^11 viral particles Ad4 PA-GPI at Day 1 + placebo on Day 15 + AVA boost at Day 29
Ad4-PA-GPI -3EXPERIMENTALGiven at 10\^9, 10\^10 and 10\^11 viral particles Ad4-PA-GPI at Days 1, 15 and 29

Interventions

NameTypeDescription
AVABIOLOGICALAnthrax Vaccine Adsorbed (0.5 mL) as the placebo control on Days 1, 15 and 29
Ad4-PA-1BIOLOGICALAd4-PA will be given at 10\^9, 10\^10 and 10\^11 on Day, followed by an oral placebo on Day 15 and an AVA boost on Day 29
Ad4-PA-GPI-1BIOLOGICALGiven at 10\^9, 10\^10 and 10\^11 viral particles Ad4 PA-GPI at Day 1 + oral placebo on Day 29 + AVA boost at Day 15
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Eligibility Criteria

Age Range18 Years to 40 Years
SexALL
Healthy VolunteersYes
Study Sites4

Inclusion Criteria: * Able to understand the study and give written informed consent. * Healthy men or women aged 18-40 years old, * BMI between 18 to 36 kg/m2 * Women of child bearing potential must have a negative serum pregnancy test at screening and a negative urine pregnancy test prior to vacc...

Countries:United States
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Frequently asked questions about AVA

What is AVA used for?

AVA is an investigational monoclonal antibody being developed for the prevention or treatment of anthrax infection. It is currently in Phase 1 clinical development and has not been approved by regulatory authorities.

Who makes AVA?

AVA is being developed by Emergent BioSolutions Inc., a biopharmaceutical company traded on the New York Stock Exchange under the ticker symbol EBS.

What phase is AVA in?

AVA is in Phase 1 clinical development. A Phase 1 ascending dose study has been completed, but the drug remains investigational and has not received regulatory approval.

What clinical trials is AVA in?

AVA has been studied in one completed Phase 1 trial, NCT01979406, which assessed the safety and immunogenicity of adenovirus anthrax vector candidate vaccines. The trial enrolled 120 healthy volunteers in the United States.

Is AVA the same as other anthrax vaccines?

AVA is a monoclonal antibody candidate for anthrax infection, distinct from traditional vaccines. The completed trial NCT01979406 evaluated adenovirus-based vector candidate vaccines, and AVA is being developed as a separate therapeutic approach.