Pridopidine for ALS: Expanded Access Protocol for S1R-targeted Therapy
Official title: An Intermediate-Size Expanded Access Protocol for Amyotrophic Lateral Sclerosis with Pridopidine
Funded at Massachusetts General Hospital · NIH-11385367 · Data updated 2026-11-12
This project tests pridopidine, a Sigma-1 receptor drug, for people with ALS to see if it can help symptoms or slow progression.
Quick facts
| Grant type | U01 cooperative agreement |
|---|---|
| Study type | NIH-funded research |
| Funding institution | Massachusetts General Hospital NIH-funded |
| Lab location | 1 site (Boston, United States) |
| Project start | September 25, 2023 |
| Project end | August 31, 2027 |
| Funding year | 2026 |
| Award (this year) | $1,657,682 |
| NIH project number | 5U01NS136021-04 |
| Project ID | NIH-11385367 on NIH RePORTER |
Who could benefit from this research
✓Could help
Adults diagnosed with ALS who meet protocol criteria and can provide informed consent.
✕Less likely to help
Some participants may experience no meaningful benefit or face adverse effects.
What this research studies
If you have ALS, this program explores whether pridopidine can make a difference by acting on the Sigma-1 receptor in the brain and spinal cord. Researchers will monitor safety and clinical effects in participants through a structured protocol, including an efficacy-focused portion and an open-label follow-up. The study builds on previous findings that S1R activation may influence cellular processes linked to ALS, such as protein handling and cellular stress responses. It leverages an expanded-access framework to provide potential access to a promising therapy while gathering real-world data on outcomes and tolerability.
Why it matters
Potential benefit: Potential improvements in motor function or slowing of disease effects for participants if pridopidine proves beneficial.
How similar studies have gone: Prior ALS studies with S1R-targeted approaches showed trends toward benefit but did not meet primary endpoints in some trials.
Where this research is happening
-
Massachusetts General Hospital
Boston, United States Active
Researchers
- Principal investigator: Paganoni, Sabrina — Massachusetts General Hospital
- Study coordinator: Paganoni, Sabrina
Related research
Other NIH-funded projects on the same topics.
-
Investigating how DNA damage and repair mechanisms are altered in ALS and frontotemporal dementia.
This study is looking at how problems with DNA repair might contribute to conditions like ALS and frontotemporal dementia, and it’s testing ways to fix these issues in cells from patients to help develop new treatments.
-
Understanding how work exposures and genes influence ALS risk
A study is building a long-term group of people at higher risk for ALS to see how their jobs, exposures at work, and genes together affect if and when the disease might develop.
-
NUZ-001: a treatment option for ALS to protect nerve cells
A small molecule called NUZ-001 is being tested to help people with ALS by improving cell systems that keep proteins balanced and prevent harmful protein clumps.
-
Alpha5 integrin's role in ALS: how a cell switch worsens disease
Aims to understand how a specific protein called alpha5 integrin in immune cells affects ALS progression and whether blocking it can help extend life.
-
C9orf72 ALS/FTD Prevent: prepping for future treatment
This grant aims to get ready for a preventive treatment for people who carry the C9orf72 genetic change that can lead to ALS or frontotemporal dementia.
-
Air pollutants and ALS: mapping environmental links to motor neuron disease
This NIH grant explores whether different air pollutants are linked to the development of ALS and uses a large U.S. data set to look for environmental risk factors.
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.