Immunity and Safety of Inactivated Enterovirus 71 Vaccine Post-marketing Among Children Aged 6-35 Months in China

NCT ID: NCT03893747

Last Updated: 2021-05-24

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE4

Total Enrollment

3000 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-04-01

Study Completion Date

2020-05-01

Brief Summary

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This study evaluates three batches consistency, immunity duration and safety of inactivated Enterovirus 71(EV-A71) vaccine(vero cell) post-marketing among children aged 6-35months in China.3000 subjects will be recruited in this study, of who 1500 subjects will be randomly assigned in a ratio of 1:1:1 to receive one of the three batches of EV-A71 vaccines manufactured by 40L capacity reactor, other 1500 subjects will be randomly assigned in a ratio of 1:1:1 to receive one of the three batches of EV-A71 vaccines manufactured by 150L capacity reactor. Vaccine wil be administrated according to a two doses of schedule given at day 0 and 28. Sample will be collected at day 0, day 56 and at month 13 after vaccinaiton.

Detailed Description

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Conditions

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Hand, Foot and Mouth Disease

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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the first batch vaccine producted by 40 L reactor

500 subjects will be randomly received the first batch vaccine producted by 40 L reactor

Group Type EXPERIMENTAL

The first batch of inactivated EV-A71 vaccine (vero cell) producted by 40 L reactor

Intervention Type BIOLOGICAL

500 subjects will be randomized to receive the first batch of inactivated EV-A71 vaccine (vero cell) producted by 40 L reactor

the second batch vaccine producted by 40 L reactor

500 subjects will be randomly received the second batch vaccine producted by 40 L reactor

Group Type EXPERIMENTAL

The second batch of inactivated EV-A71 vaccine (vero cell) producted by 40 L reactor

Intervention Type BIOLOGICAL

500 subjects will be randomized to receive the second batch of inactivated EV-A71 vaccine (vero cell) producted by 40 L reactor

the third batch vaccine producted by 40 L reactor

500 subjects will be randomly received the third batch vaccine producted by 40 L reactor

Group Type EXPERIMENTAL

The third batch of inactivated EV-A71 vaccine (vero cell) producted by 40 L reactor

Intervention Type BIOLOGICAL

500 subjects will be randomized to receive the third batch of inactivated EV-A71 vaccine (vero cell) producted by 40 L reactor

the first batch vaccine producted by 150 L reactor

500 subjects will be randomly received the first batch vaccine producted by 150 L reactor

Group Type EXPERIMENTAL

The first batch of inactivated EV-A71 vaccine (vero cell) producted by 150 L reactor

Intervention Type BIOLOGICAL

500 subjects will be randomized to receive the first batch of inactivated EV-A71 vaccine (vero cell) producted by 150 L reactor

the second batch vaccine producted by 150 L reactor

500 subjects will be randomly received the second batch vaccine producted by 150 L reactor

Group Type EXPERIMENTAL

The second batch of inactivated EV-A71 vaccine (vero cell) producted by 150 L reactor

Intervention Type BIOLOGICAL

500 subjects will be randomized to receive the second batch of inactivated EV-A71 vaccine (vero cell) producted by 150 L reactor

the third batch vaccine proudected by 150 L reactor

500 subjects will be randomly received the third batch vaccine producted by 150 L reactor

Group Type EXPERIMENTAL

The third batch of inactivated EV-A71 vaccine (vero cell) proudected by 150 L reactor

Intervention Type BIOLOGICAL

500 subjects will be randomized to receive the third batch of inactivated EV-A71 vaccine (vero cell) proudected by 150 L reactor

Interventions

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The first batch of inactivated EV-A71 vaccine (vero cell) producted by 40 L reactor

500 subjects will be randomized to receive the first batch of inactivated EV-A71 vaccine (vero cell) producted by 40 L reactor

Intervention Type BIOLOGICAL

The second batch of inactivated EV-A71 vaccine (vero cell) producted by 40 L reactor

500 subjects will be randomized to receive the second batch of inactivated EV-A71 vaccine (vero cell) producted by 40 L reactor

Intervention Type BIOLOGICAL

The third batch of inactivated EV-A71 vaccine (vero cell) producted by 40 L reactor

500 subjects will be randomized to receive the third batch of inactivated EV-A71 vaccine (vero cell) producted by 40 L reactor

Intervention Type BIOLOGICAL

The first batch of inactivated EV-A71 vaccine (vero cell) producted by 150 L reactor

500 subjects will be randomized to receive the first batch of inactivated EV-A71 vaccine (vero cell) producted by 150 L reactor

Intervention Type BIOLOGICAL

The second batch of inactivated EV-A71 vaccine (vero cell) producted by 150 L reactor

500 subjects will be randomized to receive the second batch of inactivated EV-A71 vaccine (vero cell) producted by 150 L reactor

Intervention Type BIOLOGICAL

The third batch of inactivated EV-A71 vaccine (vero cell) proudected by 150 L reactor

500 subjects will be randomized to receive the third batch of inactivated EV-A71 vaccine (vero cell) proudected by 150 L reactor

Intervention Type BIOLOGICAL

Eligibility Criteria

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Inclusion Criteria

* Healthy children aged 6-35 months
* Subjects who have been clinically judged to be healthy by the researcher after being asked about the medical history and related physical examination
* The subjects' guardians agree the requirements of the protocol and the relevant follow up visits
* The subjects' guardians agree and sign the informed consent
* Subjects who have no relocation or long-term travel plan within one year and are able to comply with the requirements of the clinical trial protocol.

Exclusion Criteria

* Subject who has a medical history of HFMD caused by EV71 or has been vaccinated with EV71 vaccine
* Subject that has a history of allergies to vaccines or vaccine ingredients, and has serious side effects on vaccines, such as allergies, urticaria, dyspnea, vascular neuroedema or abdominal pain
* Subject who has congenital malformations or developmental disorders, genetic defects, severe malnutrition, etc.
* Subject who has a history of epilepsy, convulsion or convulsion, or a family history of mental illness
* Subject who has autoimmune disease or immune deficiency, or whose parents and siblings have autoimmune disease or immune deficiency
* Subject who has a history of asthma, vascular and neuroedema, diabetes or malignant tumor
* Subject who has a thyroid resection history, or received treatment due to thyroid disease in the past 12 months
* Subject who has an abnormal coagulation function (such as coagulation factor deficiency, coagulant disease, platelet abnormality) or obvious bruising or clotting disorder which was diagnosed by doctors.
* Asplenia, functional asplenia, or splenectomy due to any circumstances
* Acute onset of various acute or chronic diseases in the last 7 days
* Immunosuppressant therapy, antiallergic therapy, cytotoxicity therapy, inhaled corticosteroids (excluding corticosteroid spray therapy for allergic rhinitis, surface corticosteroid therapy for acute non-dermatitis) in the past 6 months
* Any prior administration of blood products in last 3 months
* Any prior administration of other research medicines or vaccines in last 1 month
* Any prior administration of attenuated live vaccine in last 15 days
* Any prior administration of subunit or inactivated vaccines in last 7 days
* Under the anti-TB prevention or therapy
* Underarm temperature \> 37.0 ℃ for fever before vaccination
* Other factors that are not suitable for clinical trials according to the judgment of researchers


* Have severe allergic reaction after first dose
* Have severe adverse reactions related to first dose
* Acute infection or illness
* Other factors that are not suitable for clinical trials according to the judgment of researchers
Minimum Eligible Age

6 Months

Maximum Eligible Age

35 Months

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Wuhan Institute of Biological Products Co., Ltd

INDUSTRY

Sponsor Role collaborator

Jiangsu Province Centers for Disease Control and Prevention

NETWORK

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Fengcai Zhu

Nanjing, , China

Site Status

Countries

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China

Other Identifiers

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JSVCT048-2

Identifier Type: -

Identifier Source: org_study_id

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