Clinical trial Recruiting at 1 site Interventional Ages 75 and up

Influenza vaccination for adults over 75 years old

Official title: Influenza Immunization in Adults Over Age 75

Run by Johns Hopkins University · NCT02200276 · Data updated 2026-11-12

This study tests how well the flu vaccine works for adults over 75, especially looking at how a common virus might affect their immune response.

Quick facts

Study typeInterventional
Ages75 Years and up
SexAll
Enrollment1025 (estimated)
SponsorJohns Hopkins University
Academic / other
Drugs / interventionschemotherapy, radiation, methotrexate, prednisone
Locations1 site (Baltimore, Maryland)
StatusRecruiting
StartedMarch 2014
Main results expectedNovember 30, 2026
Study endsNovember 30, 2027
Registry record updatedMarch 16, 2026
Trial IDNCT02200276 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are adults aged 75 and older, regardless of their health status.

Probably not a fit

Patients with active malignancies, severe systemic inflammatory diseases, or those on immunosuppressive therapies 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 research investigates how the immune systems of older adults, specifically those over 75, respond to the influenza vaccine. It aims to understand the impact of chronic cytomegalovirus (CMV) infection on the immune response to the flu shot in this age group. The study will enroll 1,025 participants and assess both antibody responses and clinical protection from influenza. The findings could provide insights into improving vaccination strategies for the frail elderly population.

Why it matters

Potential benefit: If successful, this study could enhance the effectiveness of influenza vaccinations in older adults, potentially reducing morbidity and mortality associated with influenza.

How similar studies have gone: Previous studies have indicated challenges in vaccine efficacy among older adults, particularly the frail elderly, suggesting that this research addresses a critical gap in understanding immune responses in this population.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Adults over age 75 years

Exclusion Criteria:

* Allergies to egg or vaccine
* Active malignancies
* On radiation or chemotherapy
* Active systemic inflammatory diseases including rheumatoid arthritis, Crohn's disease, and ulcerative colitis
* Acute exacerbation of chronic cardiopulmonary conditions including decompensated CHF or COPD
* Taking oral steroids (such as prednisone) or immune modulating drugs (such as methotrexate).
* Lacking the capacity to consent (individuals who do not understand what Flu shot is or need someone else to decide if s/he should get the Flu shot)

Where it's running

  • Johns Hopkins University; JHAAC 5501 Hopkins Bayview Circle, 1B84
    Baltimore, Maryland, United States
    Recruiting

Study contacts

  • Principal investigator: Sean Leng — Johns Hopkins University
  • Study coordinator: Trudymae Agboka, M.S. Biology
  • Email: tagboka1@jhmi.edu
  • Phone: 410-550-5744

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.