Tracking daily changes in the sense of smell

Intensive longitudinal assessment of human olfaction

NIH-funded research University of Virginia · NIH-11135297

This project follows adults' sense of smell over time, including people with normal smell and those with smell loss, to map normal ups and downs and differences linked to illness.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionUniversity of Virginia NIH-funded
Lab location1 site (Charlottesville, United States)
Project IDNIH-11135297 on NIH RePORTER

What this research studies

You would do brief, repeated smell checks over days, weeks, or months using easy home or clinic tests and a phone-based log so researchers can see how smell changes over short and long timeframes. The team will enroll healthy adults and people with smell disorders (for example after COVID-19) to compare typical fluctuation versus persistent loss. Data will look for patterns tied to sleep/wake cycles, aging, infection, or mood changes to help tell normal variation from disease. Results will help build better testing schedules and interpretation for clinicians and researchers.

Who could benefit from this research

Good fit: Adults aged 21 and older, including healthy volunteers and people with recent or chronic smell loss (such as post-COVID anosmia) who can complete repeated home or clinic-based smell tests, are ideal candidates.

Not a fit: People under 21, those unable to follow repeated testing procedures, or anyone seeking immediate medical treatment rather than monitoring are unlikely to benefit directly from participation.

Why it matters

Potential benefit: If successful, this work could help doctors distinguish normal smell fluctuations from true smell disorders, enabling earlier diagnosis and better-targeted care.

How similar studies have performed: Prior work shows smell can change with circadian rhythms, aging, and after viral infection, but frequent, long-term home-based tracking like this is relatively new.

Where this research is happening

Charlottesville, 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.