Evaluation of the Safety and Immunogenicity of Simultaneously Administration of EV71 Vaccine and Influenza Vaccine

Influenza Clinical Trial

Official title:

A Randomized, Controlled, Multicenter Phase 4 Clinic Trial to Evaluate the Safety and Immunogenicity of Simultaneously Administration of EV71 Vaccine and Influenza Vaccine (Split Virion),Inactivated

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT04091880
• Other study ID #: EV71-Flu-Combine-01
• Status: Completed
• Phase: Phase 4
• Start date: September 26, 2019
• Est. completion date: August 10, 2021

Study information

• Verified date: October 2022
• Source: China National Biotec Group Company Limited
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

Subjects will be recruited and divided into 3 groups: 1. Experimental Group (378 subjects): combined immunization of EV71 vaccine and influenza vaccine; 2. Control Group A (378 subjects): EV71 vaccine only; 3. Control Group B (378 subjects): influenza vaccine only; All blood samples will be collected before and one month after vaccinatioin. The immunogenicity and safety of both experimental and control groups will be compared and the data be analyzed.

Description:

To further evaluate the feasibility of simultaneously administration of EV71 vaccine and flu vaccine, we design this clinical trial to test its immunogenicity and safety. 1134 subjects aged from 6 to 11 months old are divided into one experimental group and two control groups (control group A and B). 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. Blood samples are collected before the first vaccination, and one month following the second vaccination. 378 subjects from the control group A will be only administrated with two doses of EV71 vaccine (0.5 ml) (1 month apart). Blood samples are collected before the first vaccination, and one month following the second vaccination. 378 subjects from the control group B will be only administrated with two doses of influenza vaccine (0.25 ml) (1 month apart). Blood samples are collected before the first vaccination, and one month following the second vaccination. To evaluate the immunogenicity, we will detect and compare the neutralization antibody levels, the seroprotection rates, and antibody geometric mean concentrations. The safety of all groups will be monitored as well.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 1134
• Est. completion date: August 10, 2021
• Est. primary completion date: January 6, 2020
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 6 Months to 11 Months

Eligibility

Inclusion Criteria:

• 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?

Exclusion Criteria:

• 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.

Related Conditions & MeSH terms

• Enterovirus Infections
• Influenza
• Influenza, Human

Intervention

Biological:
• EV71 vaccine and influenza vaccine
simultaneously administrated with EV71 vaccine and influenza vaccine
• EV71 vaccine
administrated with EV71 vaccine only
• influenza vaccine
administrated with influenza vaccine only

Locations

Country	Name	City	State
China	Zhejiang provincial center for disease control and prevention	Hangzhou	Zhejiang

Sponsors (8)

Lead Sponsor	Collaborator
China National Biotec Group Company Limited	Changchun Institute of Biological Products Co., Ltd., Guizhou Center for Disease Control and Prevention, Henan Center for Disease Control and Prevention, National Institutes for Food and Drug Control, China, Peking University, Wuhan Institute of Biological Products Co., Ltd, Zhejiang Provincial Center for Disease Control and Prevention

Country where clinical trial is conducted

China, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Seroconversion rate I	the rate of positive seroconversion against EV71	Baseline (before vaccination) and 1 month after the last dose
Primary	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
Primary	Geometric mean titer (GMT) I	Measure neutralizing antibody titers against EV71	Baseline (before vaccination) and 1 month after the last dose
Primary	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	adverse events following vaccination	analyse the numbers and rates of participants who experience adverse events following immunization	6 months