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Purified vero rabies vaccine - serum free

Phase 3

Rabies (Healthy Volunteers) | Monoclonal antibody | Other |Sanofi|Last Updated: Sep 19, 2025

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-BlindACTIVE_CONTROLLEDBiomarker
Total Trials1
Total Enrollment201
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT04594551Study of Purified Vero Rabies Vaccine Compared With a Reference Rabies Vaccine as Simulated Rabies Post-Exposure Prophylaxis in Adults in ThaïlandPHASE3 COMPLETED 201Oct 11, 2020Jun 23, 2021Sep 19, 20253 Thailand
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Study Endpoints
Primary Endpoints
Percentage of participants achieving rabies virus neutralizing antibody (RVNA) titer greater than or equal to (≥) 0.5 IU/mL
Day 14 (post-vaccination)

RVNA titers will be measured by rapid fluorescent focus inhibition test (RFFIT)

Percentage of participants achieving RVNA titer greater than or equal to (≥) 0.5 IU/mL
Day 35 (post-vaccination)

RVNA titers will be measured by RFFIT

Number of Participants achieving RVNA titer greater than or equal to (≥) lower limit of quantification
Day 14 (post-vaccination)

RVNA titers will be measured by RFFIT - Lower limit of quantification for RFFIT assay is 0.2 IU/mL

Geometric Mean Titer Ratio (GMTR) of individual RVNA titer: (post-/pre-vaccination)
Day 14 (post-vaccination

RVNA titers against rabies virus will be measured by RFFIT at Day 0 and Day 14 - RVNA ratios Day14/Day0 will be calculated

Secondary Endpoints
Number of participants reporting immediate adverse events (AEs)
Within 30 minutes post-vaccination
Percentage of participants reporting solicited injection site and systemic reactions
Within 7 days post-vaccination
Number of participants reporting unsolicited injection site AEs
Within 28 days post-vaccination
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Study Design & Arms
AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposePREVENTION
Treatment Arms
ArmTypeDescription
Group 1: VRVg-2 + HRIGEXPERIMENTALVRVg-2 4 injections: 2 at Day 0, 1 at Day 7, 1 at Day 21 \+ HRIG at D0
Group 2: Verorab + HRIGACTIVE_COMPARATORVerorab 4 injections: 2 at Day 0, 1 at Day 7, 1 at Day 21 \+ HRIG at D0
Interventions
NameTypeDescription
Purified vero rabies vaccine - serum freeBIOLOGICALPharmaceutical form:freeze-dried - Route of administration: intramuscular
Purified inactivated rabies vaccineBIOLOGICALPharmaceutical form:freeze-dried - Route of administration: intramuscular
Human rabies immunoglobulinsBIOLOGICALPharmaceutical form:liquid/solution in 2 mL vials - Route of administration: intramuscular
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersYes
Study Sites3

Inclusion criteria : * Aged ≥ 18 years on the day of inclusion * Able to attend all scheduled visits and to comply with all study procedures * Body Mass Index (BMI): 18.5 kg/m2 ≤ BMI ≤ 30 kg/m2s Exclusion criteria: * Subject is pregnant, or lactating, or of childbearing potential and not using an...

Countries:Thailand
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