How T cell selection affects the effectiveness of COVID-19 vaccines

The impact of T cell selection on vaccine durability

NIH-funded research University of Pennsylvania · NIH-10901918

This study looks at how different types of T cells affect how long the immune protection from COVID-19 vaccines lasts, helping us understand how our past experiences with viruses can influence our response to new variants, which could lead to better vaccines in the future.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionUniversity of Pennsylvania NIH-funded
Lab location1 site (Philadelphia, United States)
Project IDNIH-10901918 on NIH RePORTER

What this research studies

This research investigates how the selection of T cells influences the durability of immune responses generated by COVID-19 vaccines. By studying the human T cell memory and its response to the mRNA vaccines from Moderna and Pfizer/BioNTech, the research aims to understand how past exposures to antigens shape the immune response to new viral variants. The methodology includes analyzing T cell populations and their diversity over time using advanced sequencing techniques. This could provide insights into improving vaccine effectiveness against emerging variants.

Who could benefit from this research

Good fit: Ideal candidates for this research include individuals who have received COVID-19 vaccinations and are willing to participate in immune response assessments.

Not a fit: Patients who have not been vaccinated against COVID-19 or those with compromised immune systems may not benefit from this research.

Why it matters

Potential benefit: If successful, this research could lead to enhanced vaccine strategies that provide longer-lasting immunity against COVID-19 and its variants.

How similar studies have performed: Other research has shown promising results in understanding T cell responses to vaccines, indicating that this approach has potential for success.

Where this research is happening

Philadelphia, United States

Researchers

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 below.
Last reviewed 2026-06-13 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.