New drug could help babies with SMA walk and sit normally

NCT ID NCT07221669

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

Summary

This study tests a drug called salanersen in babies who have a genetic diagnosis of spinal muscular atrophy (SMA) but no symptoms yet. The drug helps the body make more of a protein that is missing in SMA, which is needed for muscles to work. Researchers want to see if starting treatment early can help babies reach normal milestones like sitting and walking, and prevent or reduce symptoms.

What this could mean

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

Active substance

salanersen (BIIB115)

What this could lead to

If successful, this could allow infants with SMA to reach normal motor milestones like sitting and walking, potentially preventing severe disability.

What could go wrong

This is an early-stage, small trial (30 infants) with no placebo group, so results may not be definitive. Long-term safety and efficacy are still unknown.

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.

Get updates

Get notified about this study

Sign up to get updates when this study changes or when new studies for MUSCULAR ATROPHY, SPINAL are added.

Our safety recommendation!

By submitting, you agree to our Terms of use

Conditions

The condition(s) this trial relates to.

spinal muscular atrophy

As listed by the trial registrant

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

Contacts and locations

Study contacts

  • Contact

    Email: •••••@•••••

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • Ann and Robert H Lurie Childrens Hospital of Chicago

    RECRUITING

    Chicago, Illinois, 60611, United States

    Contact Phone: •••-•••-••••

    Contact

  • Childrens Hospital of Fudan University_Shanghai

    RECRUITING

    Shanghai, 201122, China

  • Childrens Hospital of the Kings Daughter Norfolk

    RECRUITING

    Norfolk, Virginia, 23507, United States

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

    Contact Email: •••••@•••••

  • Neurology Rare Disease Center

    RECRUITING

    Flower Mound, Texas, 75028, United States

    Contact Phone: •••-•••-••••

    Contact