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Completed Phase 3 Interventional Accepts healthy volunteers Results available

Study of Quadrivalent Influenza Vaccine Among Children

ClinicalTrials.gov ID: NCT01240746

Public ClinicalTrials.gov record NCT01240746. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Oct 19, 2026, 10:57 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

Safety and Immunogenicity Among Children Administered Quadrivalent Influenza Vaccine

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

The aim of the study is to evaluate a prototype quadrivalent influenza vaccine (QIV), the licensed 2010-2011 trivalent influenza vaccine (TIV) containing the primary B strain (B1), and the investigational TIV containing the alternate B (B2) strain in children. Primary Objective: To demonstrate non-inferiority of antibody responses to QIV compared with licensed 2010-2011 TIV (containing the primary B strain) and investigational TIV (containing the alternate B strain) as assessed by geometric mean titer (GMT) ratios for each of the four virus strains separately among children aged 6 months to less than 9 years of age Secondary Objective: To demonstrate superiority of antibody responses to each B strain in QIV compared with antibody titers following vaccination with the TIV that does not contain the corresponding B strain, as assessed by GMT ratios and seroconversion rates. Observational Objective: To describe the safety profile of QIV among subjects 6 months to less than 9 years of age, as assessed by solicited injection site and systemic adverse events (AEs) collected for 7 days post-vaccination, unsolicited adverse events collected from 21 days post-vaccination, and adverse events of special interest and serious adverse events (SAEs) collected from Visit 1 to Visit 2.

Study identification

NCT ID
NCT01240746
Recruitment status
Completed
Study type
Interventional
Phase
Phase 3
Enrollment
4,363 participants

Conditions and interventions

Eligibility (public fields only)

Age range
6 Months to 8 Years
Sex
All
Healthy volunteers
Accepts healthy volunteers

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Nov 2010 (Type not available)
Primary completion
Dec 2011 (Actual)
Completion
Feb 2012 (Actual)
Last update posted
Jul 14, 2015

2010 – 2012

United States locations

U.S. sites
67
U.S. states
26
U.S. cities
58
Facility City State ZIP Site status
Not listed Dothan Alabama 36305 —
Not listed Chandler Arizona 85224 —
Not listed Chandler Arizona 85225 —
Not listed Mesa Arizona 85203 —
Not listed Mesa Arizona 85213 —
Not listed Scottsdale Arizona 85258 —
Not listed Little Rock Arkansas 72205 —
Not listed Los Angeles California 90036 —
Not listed San Diego California 92103 —
Not listed San Diego California 92108 —
Not listed Colorado Spring Colorado 80922 —
Not listed Denver Colorado 80239 —
Not listed Ridgefield Connecticut 06877 —
Not listed Boca Raton Florida 33432 —
Not listed Jacksonville Florida 32216 —
Not listed Melbourne Florida 32935 —
Not listed Miami Beach Florida 33141 —
Not listed Ponte Vedra Florida 32081 —
Not listed Sarasota Florida 34231 —
Not listed Sarasota Florida 34239 —
Not listed South Miami Florida 33143 —
Not listed Marietta Georgia 30625 —
Not listed Arkansas City Kansas 67005 —
Not listed Newton Kansas 67114 —
Not listed Overland Park Kansas 66202 —
Not listed Wichita Kansas 67205 —
Not listed Wichita Kansas 67207 —
Not listed Bardstown Kentucky 40004 —
Not listed Crestview Hills Kentucky 41017 —
Not listed Lexington Kentucky 40509 —
Not listed Metairie Louisiana 70006 —
Not listed Columbia Maryland 21045 —
Not listed Kansas City Missouri 64114 —
Not listed St Louis Missouri 63141 —
Not listed Las Vegas Nevada 89104 —
Not listed Binghamton New York 13901 —
Not listed Cary North Carolina 27518 —
Not listed Akron Ohio 44311 —
Not listed Cleveland Ohio 44121 —
Not listed Columbus Ohio 43212 —
Not listed Portland Oregon 97203 —
Not listed Pittsburgh Pennsylvania 15220 —
Not listed Pittsburgh Pennsylvania 15227 —
Not listed Scranton Pennsylvania 18510 —
Not listed Warwick Rhode Island 02886 —
Not listed Barnwell South Carolina 26812 —
Not listed Mt. Pleasant South Carolina 29464 —
Not listed Clarksville Tennessee 37043 —
Not listed Kingsport Tennessee 37664 —
Not listed Austin Texas 78705 —
Not listed Fort Worth Texas 76107 —
Not listed Fort Worth Texas 76135 —
Not listed Houston Texas 77074 —
Not listed Katy Texas 77450 —
Not listed Layton Utah 84041 —
Not listed Murray Utah 84107 —
Not listed Orem Utah 84057 —
Not listed Provo Utah 84604 —
Not listed Salt Lake City Utah 84109 —
Not listed Salt Lake City Utah 84121 —
Not listed Salt Lake City Utah 84124 —
Not listed South Jordan Utah 84095 —
Not listed West Jordan Utah 84088 —
Not listed Charlottesville Virginia 22902 —
Not listed Midlothian Virginia 23113 —
Not listed Williamsburg Virginia 23185 —
Not listed Marshfield Wisconsin 54449 —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT01240746, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Jul 14, 2015 · Synced Oct 19, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT01240746 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →