Blocking NOX4 to reduce muscle scarring after spinal cord injury
Official title: Influence of NOX4 activity on muscle fibrosis after spinal cord injury
Funded at Veterans Health Administration · NIH-11446449 · Data updated 2026-11-12
A drug that blocks the NOX4 enzyme to lower muscle scarring and help people with spinal cord injuries regain muscle strength.
Quick facts
| Grant type | NIH-funded research |
|---|---|
| Study type | NIH-funded research |
| Funding institution | Veterans Health Administration NIH-funded |
| Lab location | 1 site (Gainesville, United States) |
| Project start | January 1, 2024 |
| Project end | September 30, 2026 |
| Funding year | 2026 |
| NIH project number | 5I21RX004903-03 |
| Project ID | NIH-11446449 on NIH RePORTER |
Who could benefit from this research
✓Could help
People with spinal cord injury who have developed persistent muscle fibrosis, weakness, or contractures would be the likely candidates for future trials of NOX4 inhibitors.
✕Less likely to help
People whose limb problems are caused mainly by nerve loss rather than muscle fibrosis, or those without established fibrosis, may not benefit from a NOX4-targeted treatment.
What this research studies
Researchers will use a rat model that mimics long-term muscle scarring and weakness after spinal cord injury to test blocking NOX4. They will use both genetic approaches and a drug called GKT831 to reduce the scar-forming cells (myofibroblasts) in muscle. The team will measure muscle scarring, muscle size, and muscle force to see whether NOX4-blocking reduces fibrosis and improves function. Successful results in the animal model would guide future human trials targeting muscle fibrosis after SCI.
Why it matters
Potential benefit: If successful, this could lead to a treatment that reduces muscle scarring, improves muscle strength, and makes rehabilitation more effective for people with spinal cord injuries.
How similar studies have gone: Preclinical work in muscular dystrophy and fibrosis in heart, kidney, liver, and lung has shown that blocking NOX4 or using GKT831 can reduce fibrosis and improve tissue function, so this builds on promising animal data.
Where this research is happening
-
Veterans Health Administration
Gainesville, United States Active
Researchers
- Principal investigator: Otzel, Dana M — Veterans Health Administration
- Study coordinator: Otzel, Dana M
Related research
Other NIH-funded projects on the same topics.
-
How NOX4 affects muscle healing after spinal cord injury
This study is looking at how a specific enzyme called NOX4 affects muscle healing after a spinal cord injury, and it aims to find out if blocking this enzyme can help reduce muscle stiffness and improve movement for people recovering from such injuries.
-
Corticospinal neurons and recovery of precise forelimb movement after spinal cord injury
This project studies how spine injuries change brain circuits and whether targeted rehabilitation helps restore precise forelimb movement.
-
How baclofen and spinal cord stimulation interact in people with spinal cord injury
This study looks at how a common antispasmodic medicine (baclofen) works together with spinal cord stimulation in people who have spinal cord injuries and live with spasticity.
-
Targeting spinal cord inflammation with a new HuR inhibitor to help SCI patients
A new treatment approach uses a small molecule to block a brain-spinal inflammation regulator (HuR) that drives harmful inflammation after spinal cord injury, aiming to lessen damage and pain for people with SCI.
-
Interface between immune cells and scarring in the eye
This grant looks at how immune cells influence scar formation in the cornea after injury and how this affects vision.
-
How often to treat schistosomiasis to protect the liver
A randomized trial will test different frequencies ofPraziquantel treatment to prevent liver damage in people aged 15–40 with schistosomiasis in Uganda.
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.