Understanding the brain mechanisms behind narcolepsy and cataplexy
Official title: Monoaminergic and limbic systems underlying narcolepsy-cataplexy
Funded at University of Michigan at Ann Arbor · NIH-11035074 · Data updated 2026-11-12
This study is looking at how certain parts of the brain and chemicals in our body affect sleep and sudden muscle weakness in people with narcolepsy, hoping to find out more about what causes these issues so we can better understand and help those who experience them.
Quick facts
| Grant type | Fellowship grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | University of Michigan at Ann Arbor NIH-funded |
| Lab location | 1 site (Ann Arbor, United States) |
| Project start | January 1, 2024 |
| Project end | October 31, 2026 |
| Funding year | 2025 |
| Award (this year) | $42,550 |
| NIH project number | 5F31NS132434-02 |
| Project ID | NIH-11035074 on NIH RePORTER |
Who could benefit from this research
✓Could help
Ideal candidates for this research are individuals diagnosed with narcolepsy, particularly those experiencing cataplexy.
✕Less likely to help
Patients with narcolepsy who do not experience cataplexy or those with other unrelated sleep disorders may not benefit from this research.
What this research studies
This research investigates how specific brain regions and neurotransmitters are involved in the regulation of sleep and arousal in patients with narcolepsy. It focuses on the role of the limbic system and monoaminergic systems in causing cataplexy, a condition where patients experience sudden muscle weakness triggered by strong emotions. By studying the dynamics of dopamine and norepinephrine release in key brain areas, the research aims to uncover the underlying mechanisms that lead to disrupted sleep and cataplexy. This could involve both animal models and advanced neurobiological techniques to gather insights into these processes.
Why it matters
Potential benefit: If successful, this research could lead to improved treatments for narcolepsy and cataplexy, enhancing the quality of life for affected patients.
How similar studies have gone: Previous research has shown promising results in understanding the neurobiological mechanisms of sleep disorders, suggesting that this approach could yield valuable insights.
Where this research is happening
-
University of Michigan at Ann Arbor
Ann Arbor, United States Active
Researchers
- Principal investigator: Toth, Brandon Anthony — University of Michigan at Ann Arbor
- Study coordinator: Toth, Brandon Anthony
Related research
Other NIH-funded projects on the same topics.
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Lateral hypothalamic neurotensin neurons and narcolepsy symptoms
Aims to see if activating specific brain cells in the lateral hypothalamus can reduce sleepiness and cataplexy in narcolepsy models.
-
Using genetics to reduce misdiagnosis of narcolepsy and sleep-wake rhythm disorders
Researchers will create genetic risk scores that work across ancestries to help people with suspected narcolepsy and circadian rhythm sleep-wake disorders get diagnosed more accurately.
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Using genetics to improve diagnosis of narcolepsy and sleep disorders.
This study is working to make it easier and faster for people with narcolepsy and sleep-wake disorders to get the right diagnosis by using genetic tests that are affordable and can help everyone, no matter their background.
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HBS-301 for Narcolepsy: daily wakefulness and sleepiness improvement in adults
This Phase 3 study tests HBS-301 vs placebo in adults with narcolepsy to see if it helps with daytime sleepiness, cataplexy, sleepiness, and fatigue.
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This study tests whether expanded nightly dosing of Xywav helps adults with narcolepsy or idiopathic hypersomnia, compared with placebo.
-
Testing Lu AH69593 for safety and tolerance in healthy adults and people with narcolepsy
This study tests whether Lu AH69593 is safe and well tolerated in adults, including those with narcolepsy, and looks at how the body processes the drug with and without food.
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.