A Trial on the Efficacy, Safety and Immunogenicity of Live-Attenuated Influenza Vaccine (LAIV)

September 13, 2017 updated by: Changchun BCHT Biotechnology Co.

A Multicenter, Randomized, Double-Blind, Placebo-Controlled, Phase Ⅲ Trial on the Efficacy, Safety and Immunogenicity of Live-Attenuated Influenza Vaccine (LAIV)

This study is a Multicenter, Randomized, Double-Blind, Placebo-Controlled, Phase Ⅲ Trial to evaluate the efficacy, safety and immunogenicity of a single dose of Live-Attenuated influenza Vaccine(LAIV) among healthy children and adolescents aged 3-17 years.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

This study is a Multicenter, Randomized, Double-Blind, Placebo-Controlled, Phase Ⅲ Trial to evaluate the efficacy, safety and immunogenicity of a single dose of Live-Attenuated influenza Vaccine(LAIV) among healthy children and adolescents aged 3-17 years old. The subjects will be randomized in a 1:1 ratio of LAIV to placebo. Each subject will be vaccinated with a single dose of LAIV or Placebo. For evaluation of efficacy, subjects meeting the protocol-defined clinical case definition the 14th day post-vaccination will have a nasal swab collected for testing by RT-PCR or virus culture for evidence of influenza virus infection. All adverse events will be collected 30 minutes, 0-30 days after vaccination and all serious adverse events during the entire trial period. Blood samples will be collected from a part of subjects before vaccination and at the 30th day after immunization. Serum samples will be centrifuged for detection of antibodies to H1N1, H3N2, and influenza B.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
9000

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • China
    • Guangdong
      • Guangzhou, Guangdong, China, 511430
        • Guangdong Provincial Institute of Biological Products and Materia Media
    • Hebei
      • Shijiazhuang Shi, Hebei, China, 050021
        • Hebei Provincial Center for Disease Control and Prevention
    • Zhejiang
      • Hangzhou, Zhejiang, China, 310051
        • Zhejiang Provincial Center for Disease Control and Prevention

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

8 months to 13 years (Child)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  1. Healthy children and adolescents aged 3-17 years old.
  2. Informed consent obtained and signed by subjects or legal guardians prior to screening. Children or adolescents aged 10-17 yrs need sign informed consent by themselves.
  3. Willing to participate for the planned duration of the study, including availability for follow-up.

Exclusion Criteria:

  1. Any investigational or unregistered product (drug, vaccine or device) was used within 30 days, or planned to be used during the trial.
  2. have been vaccinated with any influenza vaccine within 6 months, or plan to be vaccinated during the trail.
  3. Immunosuppressive agents or other immunomodulatory drugs (defined as continuous use for more than 14 days) were used over a 3-month period.
  4. Immunoglobulins and / or any blood products were used within 3 months, or planned to be used before blood collection.
  5. History of Guillain-Barré syndrome; History of hypersensitivity to any component of the LAIV, including egg or egg products.
  6. Severe allergic reactions after vaccination (including anaphylactic shock, allergic laryngeal edema, allergic purpura, local allergic necrosis).
  7. Acute diseases , infections or febrile diseases (axillary temperature ≥37.1℃) on the day of vaccination.
  8. Obvious coagulation dysfunction or History of anticoagulant therapy
  9. Aspirin is being used(Salicylates are a potential risk factor for Reye syndrome)
  10. Known or suspected immune deficiency diseases or immunosuppressed
  11. Heart disease, respiratory diseases (including severe rhinitis, nasal deformities, polyps, etc.), liver disease, kidney disease, mental disorders, chronic infections etc.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Triple

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: LAIV
a single dose of Live-Attenuated influenza Vaccine;Dose: 0.2 ml; Each dose contains not less than 6.9 lg EID50 of type A live attenuated influenza virus reassortants(H1N1 and H3N2), and not less than 6.4 lg EID50 of type B live attenuated influenza virus reassortants.
Biological: Live-Attenuated influenza Vaccine(LAIV)
Placebo Comparator: Placebo
a single dose of Placebo. Inactivated placebo will be identical to LAIV in appearance, ingredients and concentrations, attenuated influenza virus free.
Biological: Placebo

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
Percentage of Subjects With Symptomatic, Laboratory-confirmed(RT-PCR/ Virus Culture) Influenza Virus Infection(Vaccine-like Strains)
Time Frame: Through 2 weeks to 1 year post vaccination
Through 2 weeks to 1 year post vaccination

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Time Frame
Percentage of Subjects With Symptomatic, Laboratory-confirmed(RT-PCR/ Virus Culture) Influenza Virus Infection(Regardless of Vaccine Match)
Time Frame: Through 2 weeks to 1 year post vaccination
Through 2 weeks to 1 year post vaccination
Percentage of Subjects with influenza-like illness caused by Influenza Virus Infection(Laboratory-confirmed by RT-PCR/ Virus Culture)
Time Frame: Through 2 weeks to 1 year post vaccination
Through 2 weeks to 1 year post vaccination
Adverse Events Occurring Within 30 Minutes of Administration of Study Vaccine
Time Frame: Through 30 minutes post vaccination
Through 30 minutes post vaccination
Solicited Adverse Events
Time Frame: Through 14 days post vaccination
Through 14 days post vaccination
Unsolicited Adverse Events
Time Frame: Through 30 days post vaccination
Through 30 days post vaccination
Serious Adverse Events
Time Frame: Through 1 year post vaccination
Through 1 year post vaccination
Geometric Mean Titers (GMT) of Hemagglutination Inhibition (HAI) Antibodies to each of the Influenza Strains in the Vaccine Received
Time Frame: 30 days post vaccination
30 days post vaccination
Percentage of subjects with antibody positive conversion to each of the Influenza Strains in the Vaccine Received.
Time Frame: 30 days post vaccination
30 days post vaccination

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Changchun BCHT Biotechnology Co.

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
National Institutes for Food and Drug Control, China
Simoon Record Pharma Information Consulting Co., Ltd.
Zhejiang Provincial Center for Disease Control and Prevention
Baoding Municipal Center for Disease Control and Prevention, Hebei, P.R.China
Maoming Municipal Center for Disease Control and Prevention, Guangdong, P.R.China
Department of Medical Statistics, Fourth Military Medical University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
November 1, 2016

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
August 1, 2017

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
November 11, 2016

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
November 14, 2016

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
November 15, 2016

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
September 14, 2017

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 13, 2017

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
September 1, 2017

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • F20160728

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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