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36-71 months old children-experimental EV71 vaccine

Phase 3

Hand, Foot and Mouth Disease | Vaccine | Other |Sinovac Biotech, Ltd|Last Updated: May 26, 2022

Development status

Highest phase Phase 3
Registered trials 1 across 1 sponsor since Apr 2019

Target and mechanism

ModalityVaccine

Also known as 36-71 months old children-experimental EV71 vaccine.

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindACTIVE_CONTROLLED
Total Trials1
Total Enrollment900

FDA Designations

No designations recorded

Clinical trial landscape

36-71 months old children-experimental EV71 vaccine · 1 trial · 1 indication

Phase 3 1
NCT03909074Clinical Trial of Enterovirus 71(EV71) Inactivated Vaccine in Children Aged 36-71 MonthsHand, Foot and Mouth Disease
COMPLETED900 Analytics
PHASE3COMPLETED
Clinical Trial of Enterovirus 71(EV71) Inactivated Vaccine in Children Aged 36-71 Months
Hand, Foot and Mouth DiseaseUnlock trial analytics

Study Endpoints

Primary Endpoints

The seroconversion rates (SCR) of the EV71 neutralizing antibody calculated based on the cutoff value of 1:8
30 days after two doses

Subjects whose pre-immune antibody titer \< 1:8 and post-immune antibody titer ≥ 1:8, or those whose pre-immune antibody titer ≥ 1:8 and the increase of post-immune antibody level ≥ 4 folds are considered seroconverted.

The Geometric mean titer (GMT) of the EV71 neutralizing antibody in the susceptible population
30 days after two doses

The susceptible population refer to the subjects whose pre-immune antibody titer \<1:8

Secondary Endpoints

The overall incidence of adverse reactions
0-30 days after each dose
The incidence of the serious adverse events (SAE)
0-30 days after each dose
The seroconversion rates (SCR) of the EV71 neutralizing antibody calculated based on the cutoff value of 1:16, 1:32, and 1:64 respectively
30 days after two doses
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Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposePREVENTION

Treatment Arms

ArmTypeDescription
Experimental groupEXPERIMENTAL36-71 months old children-experimental EV71 vaccine.
Vaccine-controlled groupACTIVE_COMPARATOR36-71 months old children-control EV71 vaccine.
Age-controlled groupACTIVE_COMPARATOR6-35 months old children-experimental EV71 vaccine.

Interventions

NameTypeDescription
36-71 months old children-experimental EV71 vaccine.BIOLOGICALTwo doses experimental EV71 vaccine at the 0, 30 days vaccination schedule.
36-71 months old children-control EV71 vaccine.BIOLOGICALTwo doses control EV71 vaccine at the 0, 30 days vaccination schedule.
6-35 months old children-experimental EV71 vaccine.BIOLOGICALTwo doses experimental EV71 vaccine at the 0, 30 days vaccination schedule.
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Eligibility Criteria

Age Range6 Months to 71 Months
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: * Healthy volunteers ≥ 2 years old; * Proven legal identity; * Participants or guardians of the participants should be capable of understanding the written consent form, and such form should be signed prior to enrolment. Exclusion Criteria: * Prior vaccination with EV71 vaccin...

Countries:China
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Frequently asked questions about 36-71 months old children-experimental EV71 vaccine

What is the 36-71 months old children-experimental EV71 vaccine?

It is an experimental enterovirus 71 (EV71) inactivated vaccine developed for children aged 36 to 71 months. It is intended to prevent Hand, Foot and Mouth Disease, which is commonly caused by EV71. The vaccine is in Phase 3 clinical development and is not yet approved.

What is the 36-71 months old children-experimental EV71 vaccine used for?

It is used for the prevention of Hand, Foot and Mouth Disease in children aged 36 to 71 months. Hand, Foot and Mouth Disease is a common viral illness that can be caused by enterovirus 71. The vaccine is designed to stimulate immunity against EV71.

Who is developing the 36-71 months old children-experimental EV71 vaccine?

Sinovac Biotech, Ltd is developing the 36-71 months old children-experimental EV71 vaccine. Sinovac Biotech trades under the ticker SVA. The company is responsible for the clinical development of this EV71 vaccine candidate.

What phase is the 36-71 months old children-experimental EV71 vaccine in?

The 36-71 months old children-experimental EV71 vaccine is in Phase 3 clinical development. A Phase 3 trial has been completed, but the vaccine is not approved and remains investigational. No active trials are currently listed for this vaccine candidate.

What clinical trials is the 36-71 months old children-experimental EV71 vaccine in?

The vaccine has been studied in one completed Phase 3 clinical trial, NCT03909074, titled Clinical Trial of Enterovirus 71 (EV71) Inactivated Vaccine in Children Aged 36-71 Months. The trial enrolled 900 participants in China and was randomized, double-blind, and active-controlled.

Is the 36-71 months old children-experimental EV71 vaccine the same as other EV71 vaccines?

The 36-71 months old children-experimental EV71 vaccine is also known by that same descriptive name. It is a specific EV71 vaccine candidate developed by Sinovac Biotech for children aged 36 to 71 months, and it should not be confused with other EV71 vaccines from different manufacturers.