Early access to experimental SMA drug apitegromab offered before approval

NCT ID NCT06877689

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This expanded access program provides apitegromab, an experimental drug that blocks myostatin to help maintain muscle strength, to eligible patients with spinal muscular atrophy (SMA) before it is officially approved. Participants must be at least 2 years old and have a confirmed diagnosis of 5q SMA. The program aims to offer treatment to those who cannot join other clinical trials and for whom the potential benefit outweighs the risks.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance

apitegromab (a monoclonal antibody that blocks myostatin activation to help maintain muscle strength)

What this could lead to

If successful, this program could provide early access to a treatment that helps preserve muscle function in people with spinal muscular atrophy.

What could go wrong

This is an expanded access program, not a full clinical trial, so data on safety and effectiveness are still limited. Apitegromab is investigational and may not work for everyone.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Conditions

The condition(s) this trial relates to.

proximal spinal muscular atrophy spinal muscular atrophy

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.