Could a nasal spray fight Alzheimer's? early trial begins
NCT ID NCT07187141
First seen Jun 26, 2026 · Last updated Jun 26, 2026
Summary
This early study tested a nasal spray called Protollin in 16 people with early Alzheimer's disease. The main goal was to see if it is safe and tolerable. The spray is designed to boost the immune system in the brain, possibly helping to clear away harmful proteins linked to Alzheimer's.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
Protollin (nasal spray)
What this could lead to
If safe and effective, this could point toward a new way to treat Alzheimer's by stimulating the immune system to clear harmful proteins from the brain.
What could go wrong
This is a very early, small Phase 1 trial focused only on safety, not on whether the drug works. Many promising early treatments fail in later, larger studies.
Disclaimer
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This is a summary of
the original study
.
Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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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.
Contacts and locations
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Locations
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Brigham and Women's Hospital
Boston, Massachusetts, 02115, United States