The Phase IVd of Inactivated Enterovirus 71 Vaccine

NCT ID: NCT03296410

Last Updated: 2017-09-28

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

UNKNOWN

Clinical Phase

PHASE4

Total Enrollment

1220 participants

Study Classification

INTERVENTIONAL

Study Start Date

2017-09-14

Study Completion Date

2019-09-02

Brief Summary

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Enterovirus 71 (EV71), a major pathogen causing hand-foot-and-mouth disease (HFMD) worldwide, is a member of the Human Enterovirus species A, family Picornaviridae. Its infection occasionally leads to severe diseases and death, with central nervous system (CNS) damage.

Recently, except of inactivated vaccine, several EV71 vaccine candidates have been evaluated in animals but no final results of clinical trials, such as attenuated vaccine, subunit vaccine. A formalin-inactivated EV71 vaccine (Human Diploid cell, KMB-17 Cell) has been finished phase I, II and III clinical trials and licensed by SFDA in China at Dec. 3, 2015. Based on the results of clinical trials, the protective efficacy of inactivated EV71 vaccine is 97% against HFMD caused by EV71. The phase IV clinical trial has been carried out from July 2016. The purpose of phase IVd is to evaluated the immunogenicity and safety of the inactive EV71 vaccine within two measles attenuated live vaccine and live attenuated Japanese encephalitis vaccine at the same time point in large scale population of Chinese children (8 months old) in Guangdong Province, China.

Detailed Description

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There are two parts of phase IVd clinical trials have been performed. First, to evaluate the immunogenicity of the inactive EV71 vaccine within two measles attenuated live vaccine and live attenuated Japanese encephalitis vaccine at the same time point in large scale population of Chinese children (8 months old), within 56-day-post-immunized.

Second, to safety of the inactive EV71 vaccine within two measles attenuated live vaccine and live attenuated Japanese encephalitis vaccine at the same time point in large scale population of Chinese children (8 months old), within 56-day-post-immunized.

Conditions

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Hand, Foot and Mouth Disease (HFMD)

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

NONE

Study Groups

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EV71 and two measles attenuated live vaccine

infants vaccinated with enterovirus type 71 inactivated vaccine (human diploid cell) and two measles attenuated live vaccine at 8 months old, and vaccinated with the second dose of enterovirus type 71 inactivated vaccine (human diploid cell) at 9 months old.

Group Type EXPERIMENTAL

EV71 and two measles attenuated live vaccine

Intervention Type BIOLOGICAL

infants vaccined with two dose (3.0 EU/dose) of inactivated enterovirus 71 vaccine (KMB-17) at 8 months old and 9 months old (namely interval one month). And meanwhile, they routine vaccined with two measles attenuated live vaccine at 8 months old.

EV71 and attenuated Japanese encephalitis vaccine

infants vaccinated with enterovirus type 71 inactivated vaccine (human diploid cell) and live attenuated Japanese encephalitis vaccine at 8 months old, and vaccinated with the second dose of enterovirus type 71 inactivated vaccine (human diploid cell) at 9 months old.

Group Type EXPERIMENTAL

EV71 and attenuated Japanese encephalitis vaccine

Intervention Type BIOLOGICAL

infants vaccined with two dose (3.0 EU/dose) of inactivated enterovirus 71 vaccine (KMB-17) at 8 months old and 9 months old (namely interval one month). And meanwhile, they routine vaccined with attenuated Japanese encephalitis vaccine at 8 months old.

two measles attenuated live vaccine

infants vaccinated with two measles attenuated live vaccine at 8 months old

Group Type ACTIVE_COMPARATOR

two measles attenuated live vaccine

Intervention Type BIOLOGICAL

infants vaccined with one dose two measles attenuated live vaccine at 8 months old.

live attenuated Japanese encephalitis vaccine

infants vaccinated with live attenuated Japanese encephalitis vaccine at 8 months old

Group Type ACTIVE_COMPARATOR

live attenuated Japanese encephalitis vaccine

Intervention Type BIOLOGICAL

infants vaccined with one dose attenuated Japanese encephalitis vaccine at 8 months old.

EV71 vaccine

infants vaccinated with enterovirus type 71 inactivated vaccine (human diploid cell) at 8 months old, and vaccinated with the second dose of enterovirus type 71 inactivated vaccine (human diploid cell) at 9 months old.

Group Type ACTIVE_COMPARATOR

EV71 vaccine

Intervention Type BIOLOGICAL

infants vaccined with two dose (3.0 EU/dose) of inactivated enterovirus 71 vaccine (KMB-17) at 8 months old and 9 months old (namely interval one month).

Interventions

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EV71 and two measles attenuated live vaccine

infants vaccined with two dose (3.0 EU/dose) of inactivated enterovirus 71 vaccine (KMB-17) at 8 months old and 9 months old (namely interval one month). And meanwhile, they routine vaccined with two measles attenuated live vaccine at 8 months old.

Intervention Type BIOLOGICAL

EV71 and attenuated Japanese encephalitis vaccine

infants vaccined with two dose (3.0 EU/dose) of inactivated enterovirus 71 vaccine (KMB-17) at 8 months old and 9 months old (namely interval one month). And meanwhile, they routine vaccined with attenuated Japanese encephalitis vaccine at 8 months old.

Intervention Type BIOLOGICAL

two measles attenuated live vaccine

infants vaccined with one dose two measles attenuated live vaccine at 8 months old.

Intervention Type BIOLOGICAL

live attenuated Japanese encephalitis vaccine

infants vaccined with one dose attenuated Japanese encephalitis vaccine at 8 months old.

Intervention Type BIOLOGICAL

EV71 vaccine

infants vaccined with two dose (3.0 EU/dose) of inactivated enterovirus 71 vaccine (KMB-17) at 8 months old and 9 months old (namely interval one month).

Intervention Type BIOLOGICAL

Eligibility Criteria

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Inclusion Criteria

* Healthy subjects (6-71 months old children) as established by medical history and clinical examination
* The subjects' legal guardian must be aware of this vaccines
* The subjects' legal guardian voluntarily participate in the study and signed Informed Consent Form
* Subjects with temperature ≤ 37.0 ℃
* The subjects' legal guardian with the ability and objective to comply with the requirements of the protocol
* Persist for a 14-month visit (and receive blood, stool (or specimens by means of a swab) tests according to program requirements in immunogenicity observation group)

Exclusion Criteria

* Allergy or serious side-effects to a vaccine or any ingredient of vaccine
* Epilepsy, seizures, convulsions, neurological illness
* Congenital or hereditary immunodeficiency
* Autoimmune disease
* Asthma, thyroidectomy, angioneurotic edema, diabetes or cancer
* Asplenia, functional asplenia, and any circumstances leading to the asplenia or splenectomy
* Clinical diagnosis of coagulopathy (such as clotting factor deficiency, coagulation disorders, platelet abnormalities), significant bruising or blood clotting disorder
* Acute illness or acute exacerbation of chronic disease in last 7 days
* Any prior administration of immunodepressant or corticosteroids in last 6 months
* Any prior administration of blood products in last 3 months
* Any prior administration of live-attenuated vaccine in last 15 days
* Any prior administration of subunit or inactivated vaccines in last 7 days
* Fever before vaccination, axillary temperature ﹥37.0 ℃
* The laboratory test abnormalities before vaccination, including blood tests (hemoglobin, total white blood cells, WBC, platelets), blood biochemistry tests (ALT, total bilirubin, direct bilirubin, Cr, BUN) and urine tests (urine protein, urine sugar, blood cells), etc.
* Hypertension or hypotension. Systolic blood pressure ﹥140 mmHg and/ or diastolic blood pressure ﹥90 mmHg; systolic blood pressure ﹤90 mmHg and/or diastolic blood pressure ﹤60 mmHg
* Any condition that in the opinion of the investigator, may interfere with the evaluation of study objectives
* take part into other vaccine or drug clinical trials in last half year
Minimum Eligible Age

8 Months

Maximum Eligible Age

9 Months

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Guangdong Center for Disease Prevention and Control

OTHER_GOV

Sponsor Role collaborator

Chinese Academy of Medical Sciences

OTHER

Sponsor Role lead

Responsible Party

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Qihan Li

Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Guangdong Province Center for Diseases Control and Prevention

Guangzhou, Guangdong, China

Site Status

Countries

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China

Other Identifiers

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20170710

Identifier Type: -

Identifier Source: org_study_id