Gene therapy hope for babies with rare muscle disease

NCT ID NCT07070999

First seen Jun 27, 2026 · Last updated Jun 30, 2026 · Updated 2 times

Summary

This study tests a single dose of GB221, a gene therapy that delivers a working SMN1 gene, in infants aged 2 weeks to under 12 months with spinal muscular atrophy (SMA) Type 1. The goal is to see if it is safe and helps improve motor function. The trial includes both symptomatic and presymptomatic babies, and will monitor side effects and developmental milestones.

What this could mean

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

Active substance
GB221 (a gene therapy that delivers a working SMN1 gene)
What this could lead to
If it works, this could point toward a treatment that helps infants with SMA Type 1 gain motor skills and avoid permanent ventilation.
What could go wrong
This is an early phase 1-2 trial with only 22 participants, so results may not apply to everyone. There are risks of side effects like immune reactions or lab abnormalities.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

Spinal Muscular Atrophies of Childhood spinal muscular atrophy, type 1

As listed by the trial registrant

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

Contacts and locations

Study contacts

  • Contact

    Email: •••••@•••••

Locations

  • Hospital de Clínicas de Porto Alegre

    RECRUITING

    Porto Alegre, Rio Grande do Sul, 90035-903, Brazil

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