NIH-funded research R01 grant

How the trigeminal ganglion's internal clock affects headache pain

Official title: Regulation of headache pain responses by the Trigeminal ganglion clock

Funded at University of Texas Hlth Sci Ctr Houston · NIH-11300226 · Data updated 2026-11-12

This project looks at whether the internal clock in the trigeminal ganglion helps explain daily patterns of pain in migraine and cluster headache.

More Headache research and trials

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionUniversity of Texas Hlth Sci Ctr Houston
NIH-funded
Lab location1 site (Houston, United States)
Project startApril 17, 2024
Project endMarch 31, 2029
Funding year2026
Award (this year)$485,692
NIH project number5R01NS136677-03
Project IDNIH-11300226 on NIH RePORTER

Who could benefit from this research

Could help

People with migraine or cluster headache, especially those who notice a daily pattern to their attacks, would be most relevant.

Less likely to help

People without headache disorders or whose headaches show no daily timing are unlikely to see direct benefit from this work.

What this research studies

Researchers are studying the biological clock inside the trigeminal ganglion, the nerve cluster linked to headache pain. They grow trigeminal tissue in the lab and use a mouse model that mimics headache to track when pain sensitivity rises and falls over the day. The team reads gene activity across the day with RNA sequencing and turns off core clock genes to see which molecules control rhythmic pain responses. The aim is to identify clock-regulated targets that could help time treatments for better pain control.

Why it matters

Potential benefit: If successful, this work could enable timing of treatments to when they work best, reducing headache severity or frequency.

How similar studies have gone: Prior animal and some human observations have linked circadian clocks to pain timing, but applying clock-based treatments for headache is still largely untested.

Where this research is happening

  • University of Texas Hlth Sci Ctr Houston
    Houston, United States
    Active

Researchers

  • Principal investigator: Yoo, Seung-Hee — University of Texas Hlth Sci Ctr Houston
  • Study coordinator: Yoo, Seung-Hee

Related research

Other NIH-funded projects on the same topics.

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.
Last reviewed 2026-11-14 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.