Why anti-amyloid treatments can cause brain swelling and tiny bleeds (ARIA)
Mechanism of ARIA following Anti-Amyloid Immunotherapy
Researchers are looking at how anti-amyloid antibodies can stick around in the Alzheimer's brain and trigger blood-vessel inflammation that leads to brain swelling and small bleeds.
Quick facts
| Grant type | R01 grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | University of Texas Hlth Sci Ctr Houston NIH-funded |
| Lab location | 1 site (Houston, United States) |
| Project ID | NIH-11249234 on NIH RePORTER |
What this research studies
If I or a loved one were getting anti-amyloid antibody therapy, this work uses mice that model Alzheimer's and human-like versions of aducanumab and lecanemab to explore why ARIA (brain swelling and microbleeds) happens. The team gives these antibodies chronically to aged Alzheimer model mice, uses MRI to detect ARIA-like events, and studies brain blood vessel cells for inflammation and changes in genes. They also measure how quickly antibodies are cleared from the brain and link slow clearance to vascular inflammation. The goal is to identify the biological steps that cause ARIA so treatments can be made safer.
Who could benefit from this research
Good fit: People with Alzheimer’s disease who are considering or receiving anti-amyloid antibody therapy, or who have experienced ARIA, would be most directly relevant.
Not a fit: People without Alzheimer’s disease or those not eligible for anti-amyloid antibody treatment are unlikely to benefit directly.
Why it matters
Potential benefit: If successful, this could help make anti-amyloid antibody treatments safer by reducing the risk of brain swelling and bleeding.
How similar studies have performed: Clinical use of drugs like aducanumab and lecanemab has lowered amyloid but been linked to ARIA, so this work builds on known clinical observations to clarify the underlying mechanisms.
Where this research is happening
Houston, United States
- University of Texas Hlth Sci Ctr Houston — Houston, United States (Active)
Researchers
- Principal investigator: Urayama, Akihiko — University of Texas Hlth Sci Ctr Houston
- Study coordinator: Urayama, Akihiko
About this research
- This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
- Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
- For full project details, budget, and progress reports, visit the official NIH RePORTER page below.