B-cell Immunity to Influenza (SLVP017)- Year 5, 2013

Status Completed

Clinical Trial Summary

In this exploratory study, investigators will be looking at immune response differences between age groups and between the two different vaccines given to identical twins and vaccine-naive young adults.

Clinical Trial Description

This is a study of healthy children and adults who will be given standard seasonal influenza vaccination (IIV3). There are no exclusions for gender, ethnicity or race. Following review and confirmation of written informed consent, volunteers will be enrolled into the study.

The 1-2 year-old child volunteers enrolled in Group A cannot have been previously immunized with an influenza vaccine. They will receive two single doses of the 2013-2014 pediatric formulation of seasonal trivalent inactivated influenza vaccine (IIV3), at least 28 days apart, given by intramuscular (IM) injection. The child volunteers will complete 4 clinic visits with 3 blood sample collections. Study visits will be on Day 0 (first immunization), Day 28-32 (second immunization), Day 6-8 post-Dose 2, and Day 28+4 post-Dose 2. The baseline blood sample will be drawn prior to immunization at Day 0, followed by two additional blood samples at Day 6-8 post-Dose 2, and Day 28+4 post-Dose 2. There will not be a blood sample collected at Day 28-32.

The 18-30 year-old young adults in Group B cannot have been immunized with the 2012-2013 seasonal influenza vaccine. Participants in Group B will receive a single dose of the 2013-2014 IIV3 by IM injection. Young adult volunteers will complete 3 clinic visits with 3 blood sample collections on Day 0, Day 6-8, and Day 28+4. The baseline blood sample will be drawn prior to immunization at Day 0. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT03020537
Study type	Interventional
Source	Stanford University
Contact
Status	Completed
Phase	Phase 4
Start date	October 2013
Completion date	December 2013

View Details

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