Clinical trial Recruiting at 1 site Observational Ages 18 to 100

Testing the sense of smell to assess brain health in older adults

Official title: Digital Accessible Remote Olfactory Mediated Health Assessments for Preclinical AD

Run by Massachusetts General Hospital · NCT05881239 · Data updated 2026-11-12

This study is testing if a smell test can help identify brain health issues in older adults who have memory concerns or mild cognitive problems.

More Mild Cognitive Impairment trials

Quick facts

Study typeObservational
Ages18 Years to 100 Years
SexAll
Enrollment250 (estimated)
SponsorMassachusetts General Hospital
Academic / other
Locations1 site (Boston, Massachusetts)
StatusRecruiting
StartedMay 9, 2023
Main results expectedDecember 30, 2026
Study endsDecember 31, 2027
Registry record updatedMarch 6, 2026
Trial IDNCT05881239 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates include adults aged 18 to 100 with subjective cognitive concerns or mild cognitive impairment.

Probably not a fit

Patients with severe cognitive dysfunction or current respiratory issues may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study aims to evaluate the sense of smell in participants with subjective cognitive concerns, mild cognitive impairment, and mild behavioral impairment, as well as age-matched controls. Participants will complete the AROMHA Brain Health Smell Test, which involves sniffing odor samples and answering related questions via a web-based app. The study seeks to determine if olfactory testing can serve as a predictive biomarker for neurodegenerative disorders, potentially leading to a noninvasive and cost-effective diagnostic tool. Results from the tests will not be disclosed to participants.

Why it matters

Potential benefit: If successful, this study could lead to a reliable method for early detection of neurodegenerative diseases.

How similar studies have gone: While olfactory testing has been explored in other contexts, this specific approach to assessing brain health is relatively novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* A clinical or research consensus diagnosis of the patient's condition or control status.
* Individuals that are at least 18 years of age at the time of enrollment.
* Individuals that are no older than 100 years of age at the time of enrollment.

Exclusion Criteria:

* Primary pulmonary disease such as severe emphysema or asthma not under good medical control.
* Current sinusitis, common cold, upper respiratory infection, or nasal polyps.
* Current or recent (past 6 months) alcohol or substance dependence. A prior history of alcohol or substance abuse will not be grounds for exclusion.
* Pregnancy.
* Severe cognitive dysfunction that would preclude completion of the olfactory testing.
* An adverse reaction to fragrances (ie. they trigger a severe asthmatic attack or nausea).

Where it's running

  • Massachusetts General Hospital
    Boston, Massachusetts, United States
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
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.