NIH-funded research Career grant

Understanding how past COVID-19 vaccinations affect responses to new variants

Official title: Elucidating the impact of immune imprinting on SARS-CoV-2 variant vaccination strategies using a humanized mouse model

Funded at Columbia University Health Sciences · NIH-10785394 · Data updated 2026-11-12

This study is looking at how past COVID-19 vaccinations affect our immune response to newer variants like Omicron BA.4/5, using special mice to understand why some vaccines might not work as well anymore, and it aims to find ways to make vaccines more effective against these changing strains of the virus.

More SARS-CoV-2 research and trials

Quick facts

Grant typeCareer grant
Study typeNIH-funded research
Funding institutionColumbia University Health Sciences
NIH-funded
Lab location1 site (New York, United States)
Project startAugust 15, 2024
Project endJuly 31, 2029
Funding year2024
Award (this year)$193,644
NIH project number1K08AI180347-01
Project IDNIH-10785394 on NIH RePORTER

Who could benefit from this research

Could help

Ideal candidates for this research are individuals who have received prior vaccinations against the original SARS-CoV-2 variant and are concerned about their immunity to newer variants.

Less likely to help

Patients who have not been vaccinated against any SARS-CoV-2 variants may not benefit from this research.

What this research studies

This research investigates how previous vaccinations against the original SARS-CoV-2 variant influence the immune response to newer variants, particularly focusing on the Omicron BA.4/5 variant. Using a humanized mouse model, the study aims to explore the molecular mechanisms behind immune imprinting, which may limit the effectiveness of updated vaccines. By analyzing antibody responses, the research seeks to identify strategies for improving vaccine efficacy against evolving strains of the virus. This work is crucial for developing better vaccination strategies that can adapt to the ongoing changes in the virus.

Why it matters

Potential benefit: If successful, this research could lead to more effective vaccines that provide better protection against emerging COVID-19 variants.

How similar studies have gone: Previous research has shown that understanding immune responses to viral variants can lead to improved vaccine designs, indicating potential success for this approach.

Where this research is happening

  • Columbia University Health Sciences
    New York, United States
    Active

Researchers

  • Principal investigator: Bowen, Anthony — Columbia University Health Sciences
  • Study coordinator: Bowen, Anthony

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.