Clinical trial Recruiting at 1 site Phase 4 Interventional Ages 18 to 64

Evaluating immune responses to the flu vaccine in healthy adults

Official title: Longitudinal Analysis of Bone Marrow and Peripheral Blood Immune Responses to Influenza Vaccination in a Healthy Adult Cohort

Run by Emory University · NCT05616546 · Data updated 2026-11-12

This study tests how well the flu vaccine works in healthy adults by looking at their immune responses over the course of a year.

More Influenza trials

Quick facts

PhasePhase 4
Study typeInterventional
Ages18 Years to 64 Years
SexAll
Enrollment90 (estimated)
SponsorEmory University
Academic / other
Locations1 site (Atlanta, Georgia)
StatusRecruiting
StartedOctober 16, 2023
Main results expectedDecember 2029
Study endsDecember 2029
Registry record updatedJanuary 31, 2024
Trial IDNCT05616546 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are healthy adults who can provide informed consent.

Probably not a fit

Patients who are pregnant, nursing, or have cognitive impairments may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study aims to assess the immune response generated by the killed influenza vaccine in healthy volunteers. Participants will receive a licensed seasonal inactivated flu vaccine and provide blood and bone marrow samples for analysis. The study will monitor humoral immunity at multiple time points: 7 days, 28 days, 90 days, and one year post-vaccination. Researchers will evaluate the magnitude, clonal diversity, and persistence of B-cell responses to the vaccine over time.

Why it matters

Potential benefit: If successful, this study could enhance understanding of immune responses to the flu vaccine, potentially leading to improved vaccination strategies.

How similar studies have gone: Other studies have shown success in evaluating immune responses to vaccines, making this approach both relevant and supported by prior research.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* All genders, races and ethnic groups (inclusive of women and minorities) are eligible for this trial, as influenza and the associated range of clinical issues accompanying influenza infection can impact people of all genders, races and ethnic groups. It is anticipated that the distribution of study participants will be diverse with regard to these demographics.
* Adults able to provide consent on their own
* Healthy adults

Exclusion Criteria:

* Adults unable to consent
* Women who are pregnant or nursing a child may not take part in this study. If a woman of childbearing potential is enrolled in this study, she and the study doctor must agree on a method of birth control to use throughout the study. Enrollees who think that they may have gotten pregnant during the study must tell the study doctor immediately. Pregnant women will be taken out of the study.
* Prisoners
* Cognitively impaired or individuals with impaired decision-making capacity
* Individuals who are vulnerable to coercion or undue influence (human fetuses, or neonates of uncertain viability or non-viable neonates, minors/children, and cognitively impaired adults) will not be eligible for participation in this study.

Where it's running

  • Emory University Hospital
    Atlanta, Georgia, United States
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.