NCT01906190

Brief Summary

This clinical study will be performed in subjects aged 12-60 years old enrolled in NCT01310374 who received 2010 seasonal influenza vaccine to evaluate the persistence of the immune response of influenza vaccine up to 24 months after vaccination.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
207

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Aug 2011

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

August 1, 2011

Completed
1.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2013

Completed
4 months until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2013

Completed
8 days until next milestone

First Submitted

Initial submission to the registry

July 9, 2013

Completed
15 days until next milestone

First Posted

Study publicly available on registry

July 24, 2013

Completed
Last Updated

July 24, 2013

Status Verified

July 1, 2013

Enrollment Period

1.6 years

First QC Date

July 9, 2013

Last Update Submit

July 19, 2013

Conditions

Keywords

influenza vaccineimmune responsepersistence

Outcome Measures

Primary Outcomes (1)

  • change from serum antibodies against vaccine-related influenza virus at 6,12,18,24 months

    Persistence of antibodies in all subjects with respect to components of the investigational vaccine - month 6,12,18,24

    6,12,18,24 months after the primary vaccination

Study Arms (1)

vaccinated group

EXPERIMENTAL

Vaccinated group means that subjects whose antibodies less than 1:40 6 months later after primary vaccination will receive a booster dose of seasonal influenza vaccine.

Biological: seasonal influenza vaccine

Interventions

subjects whose antibodies less than 1:40 6 months later after primary vaccination will receive a booster dose of seasonal influenza vaccine

vaccinated group

Eligibility Criteria

Age12 Years - 60 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • aged 12-60 years old
  • male or non-pregnant female
  • volunteers received 2010 seasonal influenza vaccine
  • clinically healthy as determined by: medical history inquiring and physical examination
  • provide written informed consents before joining the trial

You may not qualify if:

  • without history of 2010 seasonal influenza vaccine administration,
  • allergic to any ingredient of vaccine,
  • autoimmune disease or immunodeficiency,
  • severe adverse reaction after vaccination, such as allergies, hives, breathing difficulties, angioedema or abdominal pain,
  • severe acute and chronic diseases
  • axillary temperature over 37.0℃ at the time of vaccination.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Tuoketuo Centers for Disease Control & Prevention

Tuoketuo County, Inner Mongolia, 102000, China

Location

MeSH Terms

Conditions

Influenza, Human

Condition Hierarchy (Ancestors)

Respiratory Tract InfectionsInfectionsOrthomyxoviridae InfectionsRNA Virus InfectionsVirus DiseasesRespiratory Tract Diseases

Study Officials

  • jiang wu, Bachelor

    Beijing Centers for Disease Control and Prevention

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
PREVENTION
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER GOV
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Department of Immunization & Prevention, Beijing Centers for Disease Control and Prevention

Study Record Dates

First Submitted

July 9, 2013

First Posted

July 24, 2013

Study Start

August 1, 2011

Primary Completion

March 1, 2013

Study Completion

July 1, 2013

Last Updated

July 24, 2013

Record last verified: 2013-07

Locations