Saliva test for signs of Alzheimer's and related dementias

Salivary Extracellular Vesicles as Biomarkers for Alzheimer's Disease and Related Disorders

NIH-funded research Brown University · NIH-11303391

This project looks for tiny particles in saliva that could signal Alzheimer's disease and other dementias in people at risk.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionBrown University NIH-funded
Lab location1 site (Providence, United States)
Project IDNIH-11303391 on NIH RePORTER

What this research studies

If you join, researchers will collect saliva samples and isolate tiny particles called extracellular vesicles. They will analyze those particles for proteins and other signals linked to Alzheimer's and related disorders and compare findings with clinical information. The work will include people with and without symptoms to see if saliva markers can identify risk before symptoms appear. The team at Brown University and Rhode Island Hospital aims to develop an easy, noninvasive tool that could be used in regular clinics.

Who could benefit from this research

Good fit: Ideal participants are older adults, especially those with memory concerns, mild cognitive problems, or a family history of Alzheimer's who can provide saliva samples and medical information.

Not a fit: People with advanced dementia, clear non-Alzheimer's diagnoses, or those unable or unwilling to provide saliva samples may not directly benefit from this research.

Why it matters

Potential benefit: If successful, this could enable a simple, noninvasive saliva screening to identify people at higher risk for Alzheimer's or related dementias earlier.

How similar studies have performed: Blood-based amyloid and tau tests have shown promise, but using saliva extracellular vesicles for Alzheimer's detection is a newer approach still in early stages.

Where this research is happening

Providence, 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 2026-06-10 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.