Primary and study completion dates changed from estimate of Oct 2, 2026 to Oct 9, 2026
Secondary endpoints: details revised at 1 of 1 entry
Site details revised at 11 of 38 sites
Eligibility criteria expanded, about 4 words
MinorPrimary and study completion moved earlier from Dec 31, 2026 to Oct 2, 2026v47
Re-verified, no change to tracked fieldsv46
MinorEnrollment target: 404 to 403v45
Re-verified, no change to tracked fieldsv44
Show 42 earlier versionsHide 42 earlier versions
NotablePrimary endpoints: 4 to 1v43Show 6 more changesShow less
Enrollment target: 402 to 404
Study sites: 39 to 38
Interventions: Risdiplam (Drug), SMA-DAT Application and ADAM Sensor (Device) to Risdiplam (Drug)
Eligibility criteria shortened, about 210 words
Secondary endpoints: 6 to 1
Study arms: 2 to 1
3 versionsRe-verified since May 30, 2025, no change to tracked fieldsv40-v42
MinorTrial status: Recruiting to Active, Not Recruiting
Enrollment target: estimated 500 to confirmed 402
Site details revised at 39 of 39 sites
v39
NotablePrimary endpoints: 1 to 4v38Show 5 more changesShow less
Interventions: Risdiplam (Drug) to Risdiplam (Drug), SMA-DAT Application and ADAM Sensor (Device)
Eligibility criteria expanded, about 226 words
Secondary endpoints: 1 to 6
Study sites revised (39)
Study arms: 1 to 2
MinorStart date: Jun 14, 2022 to Mar 29, 2022
Secondary endpoints: details revised at 1 of 1 entry
Eligibility criteria shortened, about 2 words
v37
NotablePrimary and study completion dates: Jun 1, 2029 to Dec 31, 2026v36
MinorStudy sites: 38 to 39v35
3 versionsRe-verified since Jun 21, 2024, no change to tracked fieldsv32-v34
MinorStudy sites: 37 to 38v31
MinorStudy sites: 36 to 37v30
MinorStudy sites: 32 to 36v29
MinorStudy sites: 31 to 32v28
Re-verified, no change to tracked fieldsv27
MinorStudy sites: 30 to 31v26
Re-verified, no change to tracked fieldsv25
MinorStudy sites: 29 to 30v24
MinorStudy sites: 28 to 29v23
MinorStudy sites: 27 to 28v22
Re-verified, no change to tracked fieldsv21
NotableStart date: Mar 29, 2022 to Jun 14, 2022
Primary and study completion dates: Feb 1, 2029 to Jun 1, 2029
v20
MinorStudy sites: 26 to 27v19
MinorStudy sites: 25 to 26v18
MinorStudy sites: 24 to 25v17
Re-verified, no change to tracked fieldsv16
MinorStudy sites: 21 to 24v15
MinorStudy sites: 19 to 21v14
MinorStudy sites: 18 to 19v13
MinorStudy sites: 15 to 18v12
MinorStudy sites: 12 to 15v11
MinorStudy sites: 11 to 12v10
MinorStudy sites: 10 to 11v9
MinorStudy sites: 7 to 10
Eligibility criteria shortened, about 15 words
Secondary endpoints: 27 to 1
v8
MinorStudy sites: 4 to 7v7
Re-verified, no change to tracked fieldsv6
MinorStudy sites: 1 to 4v5
Re-verified, no change to tracked fieldsv4
MinorStart date changed from estimate of Mar 31, 2022 to Mar 29, 2022v3
NotableTrial status: Not Yet Recruiting to Recruiting
Start date: Jan 31, 2022 to Mar 31, 2022
Study sites: 0 to 1
v2
Study First Submitted
Notable: the trial’s plan changed such as a big move in its timeline or size, a new primary endpoint, sponsor or phase, or recruiting opened or resumed.
Minor: routine progress and housekeeping, such as sites added or enrollment closed.
A multi-center, longitudinal, prospective, non-comparative study to investigate the long-term safety and effectiveness of risdiplam, prescribed based on clinician judgment as per the Evrysdi® U.S. Package Information (USPI) in adult and pediatric participants with SMA. In this study, participants will be followed for approximately 24 months from enrollment or until withdrawal of consent, loss to follow-up, or death. Participants who discontinue risdiplam may still remain in the study if they agree to continue participating in the follow-up assessments.
An optional sub-study was planned to assess the feasibility, acceptability, and adherence of remote assessment of motor and bulbar functions in participants with SMA using wearable and smartphone-based biosensors. This substudy was withdrawn upon implementation of protocol version 4.