What the trial was testing
The STR1VE enrolled 22 patients with spinal muscular atrophy. The study was sponsored by Novartis Gene Therapies and tracked outcomes across the full group of patients who matched the trial's eligibility profile.
It was a large trial designed to confirm whether the treatment works well enough for wider use. Trials at this stage are designed to produce evidence regulators and physicians can act on — not just observations to follow up later.
What the results showed
91% survived without permanent ventilation vs. 26% in untreated infants.
The Lancet Neurology · 2021 · NCT03306277
These findings — that survival without permanent ventilation at 14 months after one-time gene therapy — were published in the The Lancet Neurology and represent the headline result of the study.
Researchers tracked outcomes across 22 patients enrolled in the trial. The result was consistent enough across the group that the team felt confident reporting it.
What this means for patients
For patients with spinal muscular atrophy, this result changes the calculus on what to ask their care team about. Whether it changes day-to-day care depends on factors like disease subtype, prior treatments, and where the patient is in their care journey.
What you can do now
Onasemnogene abeparvovec (Zolgensma) is FDA-approved and available now for children under 2 with SMA. It is a one-time IV infusion that replaces the missing SMN1 gene. Liver inflammation is a notable side effect that requires steroid coverage. Ask a pediatric neurologist about newborn screening and treatment timing — earlier is better.
Eligibility for the treatments mentioned above depends on specific test results and clinical history. Bring this summary, the trial name, and your most recent labs or pathology report to your next visit.
Open spinal muscular atrophy trials
CuidAME: Longitudinal Data Collection From Patients With Spinal Muscular Atrophy in Spain
The goal of this observational study is to set up a longitudinal data collection study to perform a long-term follow-up of SMA patients in a real-world setting, and to standardise and homogenize the data collection process for SMA patient's data. Treated and untreated patients will be followed based on the routine clinical practice schedule.
Interfacing With NeuroTechnology to Expand Neural Throughput (INTENT)
The goal of this clinical trial is to evaluate the safety and preliminary efficacy of an implantable device that records and stimulates different areas of the brain to allow adults affected by disabling paralysis (see Eligibility for more details) to control and receive feedback from assistive devices.