Sniff your way to better brain health? new study tests smell training in HIV patients
NCT ID NCT07221123
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests two types of smell training in 80 adults aged 40+ with HIV. Participants will sniff scents at home twice a day for 8 weeks. The goal is to see if the training is easy to do and if it improves smell and thinking abilities.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
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About 80 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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May 2026
- Expected to finish
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Dec 2027
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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40 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Participants (men \& women) must be 40+ years * have cognitive complaints. * must be proficient in English Exclusion Criteria: * a sinus infection (within the past 3 months), thrush, candidiasis, pregnant, current cold or flu, hay fever, asthma, nasal allergies, opportunistic infections (including COVID-19) within the past 3 months, or current nasal obstruction condition. * Participation requires \~8 weeks and in-person visits, participants living beyond 60 miles away from the center will be excluded. * Participants living in unstable housing (e.g., shelter) or with significant neuro-comorbidities (e.g., schizophrenia) will be excluded. * Other conditions (e.g., legally blind/deaf, currently undergoing radiation or chemotherapy, or a history of significant brain trauma) that could impact olfactory and cognitive testing also necessitate exclusion.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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University of Alabama at Birmingham
RECRUITINGBirmingham, Alabama, 35205, United States
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