Low oxygen during sleep and lasting increased pain sensitivity

Chronic Intermittent Hypoxia and Hyperalgesic Priming

['FUNDING_R01'] · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · NIH-11283995

This project looks at whether repeated drops in oxygen during sleep (like in sleep apnea) cause immune changes that lead to long-lasting increases in pain for people with sleep disorders.

Quick facts

Phase['FUNDING_R01']
Study typeNih_funding
SexAll
SponsorUNIVERSITY OF TEXAS HLTH SCIENCE CENTER (nih funded)
Locations1 site (SAN ANTONIO, UNITED STATES)
Trial IDNIH-11283995 on ClinicalTrials.gov

What this research studies

Researchers use a laboratory model that mimics the repeated low-oxygen episodes seen in obstructive sleep apnea to study how those events affect immune cells and pain-sensing nerves. They will examine whether macrophages in peripheral tissues change their behavior and raise inflammatory signals after intermittent hypoxia. The team will measure pain-related behaviors and biochemical markers in tissues to link immune changes to persistent pain. Findings will be used to identify immune-related targets that might prevent or reduce chronic pain in people with sleep-disordered breathing.

Who could benefit from this research

Good fit: People with obstructive sleep apnea or other sleep-disordered breathing who experience chronic or recurrent pain would be the main group this line of work aims to help.

Not a fit: People whose pain stems from clearly non–sleep-related causes (for example, isolated traumatic injury or unrelated autoimmune conditions) may not benefit directly from these findings.

Why it matters

Potential benefit: If successful, this work could reveal new targets to prevent or treat chronic pain in people with sleep disorders such as obstructive sleep apnea.

How similar studies have performed: Clinical studies link sleep apnea and chronic pain, but the specific mechanism that intermittent low oxygen primes immune cells to cause lasting pain is largely novel and has mainly been tested in animal models so far.

Where this research is happening

SAN ANTONIO, 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.

View on NIH RePORTER →

Last reviewed 2026-05-15 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.