Understanding persistent smell and taste loss after COVID-19

Immune dysregulation mechanisms of persistent post-COVID19 olfactory dysfunction

['FUNDING_R01'] · BRIGHAM AND WOMEN'S HOSPITAL · NIH-11128832

This research aims to understand why some people continue to lose their sense of smell and taste long after recovering from COVID-19.

Quick facts

Phase['FUNDING_R01']
Study typeNih_funding
SexAll
SponsorBRIGHAM AND WOMEN'S HOSPITAL (nih funded)
Locations1 site (BOSTON, UNITED STATES)
Trial IDNIH-11128832 on ClinicalTrials.gov

What this research studies

Many people experience a sudden loss of smell and taste with COVID-19, and for some, these problems can last for over a year. Current anti-inflammatory treatments haven't been effective for this long-lasting issue. This project will look closely at the immune cells and signals in the nose to figure out what's causing this persistent problem. By understanding these specific pathways, we hope to find new ways to help restore smell and taste.

Who could benefit from this research

Good fit: Ideal candidates for future related studies would be individuals who have experienced persistent loss of smell and taste for many months after a COVID-19 infection.

Not a fit: Patients whose smell and taste returned quickly after COVID-19, or those with other causes of smell loss, may not directly benefit from this specific research.

Why it matters

Potential benefit: If successful, this work could lead to new, targeted treatments for individuals experiencing long-term smell and taste loss after COVID-19.

How similar studies have performed: Classical anti-inflammatory treatments have not been effective for this condition, suggesting this approach to identify specific immune pathways is novel.

Where this research is happening

BOSTON, 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.

View on NIH RePORTER →

Last reviewed 2026-05-15 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.