Recent Updates
Recently added Catalysts

Purified vero rabies vaccine- serum free- VRVg-2

Phase 3

Rabies | Monoclonal antibody | Infectious Disease |Sanofi|Last Updated: Feb 10, 2026

Success Probability

Subscribe to view

Market & Valuation

Subscribe to view

Trial Design

RandomizedDouble-BlindACTIVE_CONTROLLED
Total Trials1
Total Enrollment1,708

FDA Designations

No designations recorded

Clinical trial landscape

Purified vero rabies vaccine- serum free- VRVg-2 · 1 trial · 2 indications

Phase 3 1
NCT04127786Study of Purified Vero Rabies Vaccine Compared With Two Reference Rabies Vaccines, Given in a Pre-exposure Regimen to Children and Adults and as Single Booster Dose to a Subset of AdultsRabies
COMPLETED1,708 Analytics
PHASE3COMPLETED
Study of Purified Vero Rabies Vaccine Compared With Two Reference Rabies Vaccines, Given in a Pre-exposure Regimen to Children and Adults and as Single Booster Dose to a Subset of Adults
RabiesUnlock trial analytics

Study Endpoints

Primary Endpoints

Primary Series Cohort 1: Percentage of Participants With Rabies Virus Neutralizing Antibody (RVNA) Titer Greater Than or Equal to (>=) 0.5 IU/mL
Day 42 (post-vaccination)

RVNA titer against rabies virus was assessed using the Rapid Fluorescent Focus Inhibition test (RFFIT) assay method.

Secondary Endpoints

Primary Series Cohort 1: Percentage of Participants With Rabies Virus Neutralizing Antibody Titers >=0.5 IU/mL
Cohort 1: Day 0 (pre-vaccination), Day 28 and Day 42 (post-vaccination)
Primary Series: Percentage of Participants With Rabies Virus Neutralizing Antibody Titers >=0.5 IU/mL - Pooled Population
Cohort 1: Day 0 (pre-vaccination), Day 28 (post-vaccination); Cohort 2: Day 0 (pre-vaccination) and Day 28 (post-vaccination)
Primary Series: Percentage of Participants With Rabies Virus Neutralizing Antibody Titers >=0.5 IU/mL - Pooled Population (Groups 1 and 4) Versus Cohort 1: Group 3: Non-inferiority Analysis
Pooled Groups 1 and 4: Day 28 (post-vaccination) and Primary Series: Cohort-1 Group 3: Day 42 (post-vaccination)
Unlock Study Endpoints

Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposePREVENTION

Treatment Arms

ArmTypeDescription
Group1:VRVg2 Cohort1(C1)-1ry Series:pediatric&adult participants-Booster:102 adult participantsEXPERIMENTALVRVg-2, 3 injections at Day 0, Day 7, and Day 28 Booster dose of VRVg-2 for a subset of 102 adult participants at Month 12
Group 2:Verorab C1-1ry Series:pediatric&adult participants-Booster Phase:34 adult participantsACTIVE_COMPARATORVerorab, 3 injections at Day 0, Day 7, and Day 28 Booster dose of VRVg-2 for a subset of 34 adult participants at Month 12
Group 3:Imovax Rabies C1-1ry Series:pediatric&adult participants-Booster Phase:34 adult participantsACTIVE_COMPARATORImovax Rabies, 3 injections at Day 0, Day 7, and Day 28 Booster dose of VRVg-2 for a subset of 34 adult participants at Month 12
Group 4:VRVg-2 Cohort 2(C2)-1ry Series:Adult participants-Booster Phase:138 adult participantsEXPERIMENTALVRVg-2, 2 injections at Day 0 and Day 7 Booster dose of VRVg-2 for a subset of 138 adult participants between Month 24 up to Month 36
Group 5:Verorab C2-1ry Series:adult participants-Booster Phase:46 adult participantsACTIVE_COMPARATORVerorab, 2 injections at Day 0 and Day 7 Booster dose of VRVg-2 for a subset of 46 adult participants between Month 24 up to Month 36
Group 6:Imovax Rabies C2-1ry Series:adult participants-Booster Phase:46 adult participantsACTIVE_COMPARATORImovax Rabies, 2 injections at Day 0 and Day 7 Booster dose of VRVg-2 for a subset of 46 adult participants between Month 24 up to Month 36

Interventions

NameTypeDescription
Purified vero rabies vaccine - serum free - VRVg-2BIOLOGICALPharmaceutical form: Freeze-dried Route of administration: Intramuscular
Purified inactivated rabies vaccine - Verorab®BIOLOGICALPharmaceutical form:Freeze-dried Route of administration: Intramuscular
Purified inactivated rabies vaccine - Imovax® RabiesBIOLOGICALPharmaceutical form: Freeze-dried Route of administration: Intramuscular
Unlock Study Design Details

Eligibility Criteria

Age Range1 Year to N/A
SexALL
Healthy VolunteersYes
Study Sites4

Inclusion Criteria: * Aged ≥1 year on the day of inclusion * Cohort 1 - pediatrics (\>1 to 17 years old) and adult (≥18 years old) * Cohort 2 - all adults (≥18 years old) * Informed consent form has been signed and dated by the participant and /or and parent(s) or legally acceptable representa...

Countries:Thailand
Unlock Eligibility Criteria

Frequently asked questions about Purified vero rabies vaccine- serum free- VRVg-2

What is Purified vero rabies vaccine- serum free VRVg-2 used for?

Purified vero rabies vaccine- serum free VRVg-2 is an investigational vaccine being studied for the prevention of rabies. It is being evaluated in healthy volunteers and in the context of rabies post-exposure prophylaxis. The vaccine is developed by Sanofi and is currently in Phase 3 clinical development.

Who makes Purified vero rabies vaccine- serum free VRVg-2?

Purified vero rabies vaccine- serum free VRVg-2 is developed by Sanofi, a company listed on the stock exchange under the ticker SNY. Sanofi is conducting Phase 3 clinical trials to evaluate the vaccine's safety and immunogenicity in comparison with reference rabies vaccines.

What phase is Purified vero rabies vaccine- serum free VRVg-2 in?

Purified vero rabies vaccine- serum free VRVg-2 is in Phase 3 clinical development. It is an investigational vaccine and has not been approved by regulatory authorities. Two Phase 3 trials have been completed, with a total enrollment of over 2,000 participants.

What clinical trials is Purified vero rabies vaccine- serum free VRVg-2 in?

Purified vero rabies vaccine- serum free VRVg-2 has been studied in two completed Phase 3 trials. NCT04127786 compared the vaccine with two reference rabies vaccines in a pre-exposure regimen in children and adults, with a booster dose in a subset of adults. NCT04478084 evaluated the vaccine as simulated rabies post-exposure prophylaxis in adults and children in Thailand.

Is Purified vero rabies vaccine- serum free VRVg-2 the same as VRVg-2?

Yes, Purified vero rabies vaccine- serum free VRVg-2 is also known as VRVg-2. The vaccine is a purified vero cell rabies vaccine produced under serum-free conditions. It is being developed by Sanofi for the prevention of rabies.