NIH-funded research R21 grant

Investigating how the dengue vaccine works in people with prior dengue infection

Official title: Immunogenicity of the dengue vaccine CYD-TDV in a dengue virus serotype 1 immune population

Funded at Oregon Health & Science University · NIH-10892299 · Data updated 2026-11-12

This study is looking at how the dengue vaccine works better for people who have had dengue before, and it aims to find out why that is, so we can make the vaccine even more effective for everyone.

More Dengue research and trials

Quick facts

Grant typeR21 grant
Study typeNIH-funded research
Funding institutionOregon Health & Science University
NIH-funded
Lab location1 site (Portland, United States)
Project startJuly 21, 2023
Project endJune 30, 2025
Funding year2024
Award (this year)$195,042
NIH project number5R21AI178617-02
Project IDNIH-10892299 on NIH RePORTER

Who could benefit from this research

Could help

Ideal candidates for this research are individuals aged 9-16 years who have a confirmed history of dengue virus infection.

Less likely to help

Patients who have never been infected with the dengue virus may not benefit from this research.

What this research studies

This research focuses on understanding the immune response generated by the dengue vaccine CYD-TDV in individuals who have previously been infected with the dengue virus. The study aims to explore why the vaccine is more effective in these individuals compared to those without prior infection. By examining the role of immune cells and antibodies, researchers hope to uncover mechanisms that enhance the vaccine's effectiveness. This could lead to improved vaccination strategies for dengue prevention.

Why it matters

Potential benefit: If successful, this research could lead to more effective dengue vaccination strategies, potentially reducing the incidence of dengue fever.

How similar studies have gone: Previous research has shown that understanding immune responses to vaccines can lead to significant advancements in vaccine efficacy, suggesting potential for success in this area.

Where this research is happening

  • Oregon Health & Science University
    Portland, United States
    Active

Researchers

  • Principal investigator: Messer, William — Oregon Health & Science University
  • Study coordinator: Messer, William

Related research

Other NIH-funded projects on the same topics.

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page.
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.