ClinicalTrials.gov record

Completed Not applicable Interventional Accepts healthy volunteers Results available

Systems Biology of Flu Vaccine in Healthy Adults With and Without the Use of Antibiotics

ClinicalTrials.gov ID: NCT02154061

Public ClinicalTrials.gov record NCT02154061. 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.

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Official title

Systems Biology of Inactivated Influenza Vaccine (IIV) in Healthy Adults With or Without Use of Broad Spectrum Antibiotics

Brief summary

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

The purpose of the study is to better understand how the use of antibiotics changes micro-organisms in the intestines. The change to micro-organisms in the intestines may change the body's vaccine immune response and alter the effectiveness of the IIV (seasonal flu) vaccine. In particular, the investigators will be looking at certain markers in blood after vaccination with IIV (seasonal flu vaccine) with or without the use of antibiotics before vaccination. There will be two randomized groups. Group A will start taking antibiotic by mouth 3 days prior to vaccination and continue taking antibiotics the day of vaccination and one day after vaccination for a total of 5 days. Group B will only receive the IIV (seasonal flu vaccine) and will not take any antibiotics. The investigators hope to enroll 50 subjects at Emory.

Study identification

NCT ID: NCT02154061
Recruitment status: Completed
Study type: Interventional
Phase: Not applicable
Lead sponsor: Emory University; Other
Enrollment: 33 participants

Conditions and interventions

Conditions

Influenza

Interventions

Drug

Eligibility (public fields only)

Age range: 18 Years to 40 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: Mar 31, 2015
Primary completion: May 25, 2017
Completion: May 25, 2017
Last update posted: Aug 14, 2018

2015 – 2017

United States locations

U.S. sites: 1
U.S. states: 1
U.S. cities: 1

Facility	City	State	ZIP	Site status
Emory Vaccine Center	Atlanta	Georgia	30030	—

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 NCT02154061, 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 Aug 14, 2018 · Synced Sep 6, 2026

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The complete protocol, eligibility criteria, and contact information for NCT02154061 live on ClinicalTrials.gov.

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