NCT04091880

Brief Summary

Subjects will be recruited and divided into 3 groups:

  1. 1.Experimental Group (378 subjects): combined immunization of EV71 vaccine and influenza vaccine;
  2. 2.Control Group A (378 subjects): EV71 vaccine only;
  3. 3.Control Group B (378 subjects): influenza vaccine only;

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
1,134

participants targeted

Target at P75+ for phase_4

Timeline
Completed

Started Sep 2019

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

September 15, 2019

Completed
2 days until next milestone

First Posted

Study publicly available on registry

September 17, 2019

Completed
9 days until next milestone

Study Start

First participant enrolled

September 26, 2019

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 6, 2020

Completed
1.6 years until next milestone

Study Completion

Last participant's last visit for all outcomes

August 10, 2021

Completed
Last Updated

October 12, 2022

Status Verified

October 1, 2022

Enrollment Period

3 months

First QC Date

September 15, 2019

Last Update Submit

October 10, 2022

Conditions

Keywords

EV71 vaccineinfluenza vaccinesimultaneously administration

Outcome Measures

Primary Outcomes (4)

  • Seroconversion rate I

    the rate of positive seroconversion against EV71

    Baseline (before vaccination) and 1 month after the last dose

  • Seroconversion rate II

    the rate of positive seroconversion against Influenza A (H3N2, H1N1) and B Type viruses

    Baseline (before vaccination ) and 1 month after the last dose

  • Geometric mean titer (GMT) I

    Measure neutralizing antibody titers against EV71

    Baseline (before vaccination) and 1 month after the last dose

  • Geometric mean titer (GMT) II

    Measure neutralizing antibody titers against Influenza A (H3N2, H1N1) and B Type viruses

    Baseline (before vaccination) and 1 month after the last dose

Secondary Outcomes (1)

  • adverse events following vaccination

    6 months

Study Arms (3)

experimental group

EXPERIMENTAL

378 subjects from the experimental group will be simultaneously administrated with one dose of EV71 vaccine (0.5 ml) and one dose of influenza vaccine (0.25 ml). One month later, they are going to receive a second dose of EV71 vaccine and influenza vaccine, simultaneously.

Biological: EV71 vaccine and influenza vaccine

control group A

ACTIVE COMPARATOR

378 subjects from the control group A will be only administrated with two doses of EV71 vaccine (0.5 ml) (1 month apart).

Biological: EV71 vaccine

control group B

ACTIVE COMPARATOR

378 subjects from the control group B will be only administrated with two doses of influenza vaccine (0.25 ml) (1 month apart).

Biological: influenza vaccine

Interventions

simultaneously administrated with EV71 vaccine and influenza vaccine

experimental group
EV71 vaccineBIOLOGICAL

administrated with EV71 vaccine only

control group A

administrated with influenza vaccine only

control group B

Eligibility Criteria

Age6 Months - 11 Months
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)

You may qualify if:

  • subjects aged from 6-11 months old at the date of recruitment;
  • with informed consent signed by parent(s) or guardians;
  • parent(s) or guardians are able to attend all planned clinical appointments and comply with all study instructions;
  • subjects not receive any vaccination within 14 days at the date of recruitment;
  • subjects have not been vaccinated with EV71 vaccine, seasonal flu vaccine;
  • subjects with no medical history of EV71 infection;
  • axillary temperature ≤37.0℃

You may not qualify if:

  • subject who has a medical history with Hypersensitiveness, eclampsia, epilepsy, cerebropathia and neurological illness;
  • allergic to any ingredient of vaccine or with allergy history to any vaccine;
  • subjects with immunodeficency or suspected impairment of immunologic function (e.g. caused by HIV), or subjects are in the process of immunosuppressor therapy(Taking orally injecting of steroid hormone);
  • administration of immunoglobulins within 30 days prior to this study;
  • acute febrile disease(temperature ≥ 37.0°C) or infectious disease;
  • have a clearly diagnosed history of thrombocytopenia or other coagulopathy,
  • may cause contraindications for subcutaneous injection;
  • any serious chronic illness, acute infectious diseases, or respiratory diseases;
  • severe cardiovascular disease, liver and kidney diseases or diabetes mellitus with complications;
  • any kind of infectious, purulent, or allergic skin diseases;
  • any other factor that makes the investigator determines the subject is unsuitable for this study.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Zhejiang provincial center for disease control and prevention

Hangzhou, Zhejiang, 310051, China

Location

Related Publications (1)

  • Chen Y, Xiao Y, Ye Y, Jiang F, He H, Luo L, Chen H, Shi L, Mu Q, Chen W, Guo X, Zhang M, Li J, Guan Q, Chen Z, Yang X. Immunogenicity and safety of an inactivated enterovirus 71 vaccine coadministered with trivalent split-virion inactivated influenza vaccine: A phase 4, multicenter, randomized, controlled trial in China. Front Immunol. 2022 Dec 8;13:1080408. doi: 10.3389/fimmu.2022.1080408. eCollection 2022.

MeSH Terms

Conditions

Enterovirus InfectionsInfluenza, Human

Interventions

Influenza Vaccines

Condition Hierarchy (Ancestors)

Picornaviridae InfectionsRNA Virus InfectionsVirus DiseasesInfectionsRespiratory Tract InfectionsOrthomyxoviridae InfectionsRespiratory Tract Diseases

Intervention Hierarchy (Ancestors)

Viral VaccinesVaccinesBiological ProductsComplex Mixtures

Study Officials

  • Hanqing He

    Zhejiang Provincial Center for Disease Control and Prevention

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 15, 2019

First Posted

September 17, 2019

Study Start

September 26, 2019

Primary Completion

January 6, 2020

Study Completion

August 10, 2021

Last Updated

October 12, 2022

Record last verified: 2022-10

Data Sharing

IPD Sharing
Will not share

Locations