Long-term safety testing of CMS121 for people with mild to moderate Alzheimer's disease

Long-term, non-clinical toxicology for advancing CMS121 to Phase 2 trials for AD

NIH-funded research Virogenics, INC. · NIH-11196206

This project is testing whether the new pill CMS121 can be safely given every day for a long time to adults with mild to moderate Alzheimer's disease.

Quick facts

Grant typeU01 cooperative agreement
Study typeNIH-funded research
Funding institutionVirogenics, INC. NIH-funded
Lab location1 site (Del Mar, United States)
Project IDNIH-11196206 on NIH RePORTER

What this research studies

From a patient point of view, the team is doing long-term safety work in labs and animals to look for side effects if CMS121 were taken daily by people with mild to moderate Alzheimer's. CMS121 is a small molecule that helped in multiple mouse Alzheimer models and works differently than current drugs that target amyloid plaques. The researchers will run detailed toxicology experiments to find any organ, metabolic, or other safety problems that could appear after months of use. Those safety results are needed before CMS121 can move into Phase 2 human testing for cognitive benefit.

Who could benefit from this research

Good fit: Ideal candidates for future clinical testing would be adults diagnosed with mild to moderate Alzheimer's disease who meet trial eligibility and safety criteria for daily oral medication.

Not a fit: People with severe Alzheimer's, non‑Alzheimer dementia, or medical conditions that make long-term medication unsafe are unlikely to benefit from this program.

Why it matters

Potential benefit: If successful, this work could enable human trials of CMS121 and eventually lead to a new treatment that protects the brain and improves thinking and memory for people with Alzheimer's.

How similar studies have performed: CMS121 showed promising results in multiple mouse models, but similar approaches have not yet proven long-term cognitive benefit in humans.

Where this research is happening

Del Mar, 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.
Conditions Alzheimer disease dementiaAlzheimer syndromeAlzheimer's DiseaseAlzheimer's disease brain
Last reviewed 2026-06-13 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.