NIH-funded research U01 cooperative agreement

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 typeU01 cooperative agreement
Study typeNIH-funded research
Funding institutionMassachusetts General Hospital
NIH-funded
Lab location1 site (Boston, United States)
Project startSeptember 25, 2023
Project endAugust 31, 2027
Funding year2026
Award (this year)$1,657,682
NIH project number5U01NS136021-04
Project IDNIH-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.

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.