Cognitive decline in early Alzheimer’s: restoring a key brain chemical
Official title: Cognitive Decline in Prodromal Alzheimer's Disease: Toward Restoring a Vital Neurotransmitter Cofactor Deficit
Funded at Columbia University Health Sciences · NIH-11445150 · Data updated 2026-11-12
A study explores whether boosting a natural brain cofactor (BH4) can help people with early Alzheimer’s or mild cognitive impairment slow memory loss.
Quick facts
| Grant type | R21 grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | Columbia University Health Sciences NIH-funded |
| Lab location | 1 site (New York, United States) |
| Project start | September 1, 2026 |
| Project end | August 31, 2028 |
| Funding year | 2026 |
| Award (this year) | $452,375 |
| NIH project number | 1R21AG104239-01 |
| Project ID | NIH-11445150 on NIH RePORTER |
Who could benefit from this research
✓Could help
Adults with mild cognitive impairment or early Alzheimer’s disease who meet study criteria and can participate in biomarker and cognitive assessments.
✕Less likely to help
Participants with advanced Alzheimer’s or certain medical conditions may not benefit from BH4 supplementation.
What this research studies
This project focuses on people with mild cognitive impairment or early Alzheimer’s disease to see if giving BH4, a brain chemical helper, can support neurotransmitter systems and cognition. Researchers will examine blood and possibly brain-related markers, and will relate these to cognitive performance over time. The goal is to determine whether BH4 supplementation could slow decline when the disease is still in an early stage, potentially delaying dependence on care. Participants may undergo tests, receive BH4, and be followed for changes in memory and thinking abilities.
Why it matters
Potential benefit: If successful, BH4 supplementation could slow cognitive decline and preserve daily functioning in early Alzheimer’s, potentially extending independence for patients.
How similar studies have gone: Preliminary work suggests BH4 deficits are linked to cognition in AD, with some early findings supporting a potential role for supplementation.
Where this research is happening
-
Columbia University Health Sciences
New York, United States Active
Researchers
- Principal investigator: Clelland, Catherine L — Columbia University Health Sciences
- Study coordinator: Clelland, Catherine L
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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.