NCT03744104

Brief Summary

The aim of this study is to assess the immunogenicity and safety of a quadrivalent influenza vaccine compared with a trivalent influenza vaccine in participants aged above 3 years.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
2,688

participants targeted

Target at P75+ for phase_3

Timeline
Completed

Started Oct 2018

Shorter than P25 for phase_3

Geographic Reach
1 country

2 active sites

Status
completed

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

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

October 11, 2018

Completed
1 month until next milestone

First Submitted

Initial submission to the registry

November 14, 2018

Completed
2 days until next milestone

First Posted

Study publicly available on registry

November 16, 2018

Completed
11 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 8, 2019

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 8, 2019

Completed
Last Updated

January 2, 2024

Status Verified

December 1, 2023

Enrollment Period

12 months

First QC Date

November 14, 2018

Last Update Submit

December 22, 2023

Conditions

Outcome Measures

Primary Outcomes (2)

  • Number of participants that presented seroconversion post injection

    * Seroconvertion is defined as: prevaccination Hemagglutination-inhibition test (HI) antibody titer ≤1:10 and postvaccination HI antibody titer ≥1:40, or prevaccination HI antibody titer ≥1:10 and a postvaccination increase by a factor of four or more. * Participants will be collected blood post first study injection, when blood samples will be taken for HI testing

    30 days after inoculation

  • Geometric mean of Hemagglutination-inhibition titre post first study injection

    * Geometric mean of Hemagglutination-inhibition test titre will be calculated for the different groups of participants post first study injection. * Participants will be collected blood post first study injection, when blood samples will be taken for HI testing.

    30 days after inoculation

Secondary Outcomes (2)

  • Number of participants that presented seroprotection post injection

    30 days after inoculation

  • Number of Subjects Reporting Solicited and Unsolicited Adverse Events (AEs)

    Continuous observation for 30 days after two inoculations

Study Arms (3)

Quadrivalent influenza vaccine

EXPERIMENTAL

Quadrivalent influenza vaccine(containing 2 subtypes of B lineage)

Biological: Quadrivalent influenza vaccine

Trivalent influenza vaccine A

ACTIVE COMPARATOR

Trivalent influenza vaccine (containing B/Victoria lineage)

Biological: Trivalent influenza vaccine A

Trivalent influenza vaccine B

ACTIVE COMPARATOR

Trivalent influenza vaccine (containing B/Yamagata lineage)

Biological: Trivalent influenza vaccine B

Interventions

0.5 mL, intramuscular, one dose

Quadrivalent influenza vaccine

0.5 mL, intramuscular, one dose

Trivalent influenza vaccine A

0.5 mL, intramuscular, one dose

Trivalent influenza vaccine B

Eligibility Criteria

Age3 Years+
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • Over the age of three years,healthy population
  • Subjects/ (and the guardian) informed consent, voluntarily participated and signed the informed consent form, with the ability to use thermometers, scales and to fill in diary cards as required
  • To comply with the requirements of clinical trial program
  • Temperature≤37.0℃ on day of enrollment

You may not qualify if:

  • A history of influenza virus infection or suspected infection Abnormal blood routine, blood biochemistry and urine routine examination indexes in last three months
  • Any prior administration of influenza vaccine in last six months
  • Allergy to any component in the vaccine, especially for egg allergy
  • Allergy history of any previous vaccination or drug
  • Acute episodes of chronic illness or acute illness on the day of vaccination
  • Received a live vaccine within fourteen days prior to receiving the vaccine, or received a subunit or inactivated vaccine within seven days
  • Congenital or acquired immune deficiencies, or treatment with immunosuppressive agents, such as long-term treatment with systemic corticosteroids
  • Suffering from severe chronic diseases (such as Down's syndrome, diabetes, sicklemia or neurological disorders, Green's Barre syndrome)
  • Asthma, required urgent treatment in last two years
  • The blood products were received prior to the acceptance of the vaccine
  • Known or suspected of respiratory disease, acute infection or chronic disease active period, HIV infection, cardiovascular disease, severe hypertension, malignant tumor during treatment, skin diseases
  • History of epilepsy, convulsions, or a family history of psychosis
  • Abnormal coagulation function (such as coagulation factor deficiency, coagulation disorders, platelet abnormalities), or obvious bruising or coagulopathy
  • Plan to move or leave the area for an extended period of time before the end of the study
  • Under anti-tb treatment
  • +2 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Suining County Center for Disease Control and Prevention

Xuzhou, Jiangsu, China

Location

Xinyi County Center for Disease Control and Prevention

Xuzhou, Jiangsu, China

Location

MeSH Terms

Conditions

Influenza, Human

Interventions

Influenza Vaccines

Condition Hierarchy (Ancestors)

Respiratory Tract InfectionsInfectionsOrthomyxoviridae InfectionsRNA Virus InfectionsVirus DiseasesRespiratory Tract Diseases

Intervention Hierarchy (Ancestors)

Viral VaccinesVaccinesBiological ProductsComplex Mixtures

Study Officials

  • Hu Yuemei, PhD

    Jiangsu Province Centers for Disease Control and Prevention

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 14, 2018

First Posted

November 16, 2018

Study Start

October 11, 2018

Primary Completion

October 8, 2019

Study Completion

October 8, 2019

Last Updated

January 2, 2024

Record last verified: 2023-12

Locations