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Long-term Follow-up Study of Risdiplam in Participants With Spinal Muscular Atrophy (SMA)

Long-term Follow-up Study of Patients With Spinal Muscular Atrophy Receiving Risdiplam Treatment

Status
Active, not recruiting
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05232929
Acronym
WeSMA
Enrollment
403
Registered
2022-02-10
Start date
2022-03-29
Completion date
2026-10-02
Last updated
2026-09-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Spinal Muscular Atrophy

Brief summary

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 This substudy was withdrawn upon implementation of protocol version 4.

Interventions

Risdiplam taken by participants as prescribed by their physician.

Sponsors

Genentech, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Healthy volunteers
No

Inclusion criteria

* Provide informed consent or assent when appropriate, as determined by the participant's age and individual site and local standards * Prescribed or continued risdiplam based on clinical judgment of prescriber, as per the risdiplam (Evrysdi) USPI, after U.S. FDA approval (07 August 2020)

Exclusion criteria

* Hypersensitivity to risdiplam * Participated in a registrational trial for risdiplam (i.e., Firefish \[NCT02913482\], Sunfish \[NCT02908685\], Jewelfish \[NCT03032172\], and Rainbowfish \[NCT03779334\])

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Adverse Events (AEs), Adverse Events of Special Interest (AESIs), and Serious Adverse Events (SAEs)From enrollment up to the duration of the study or until withdrawal of consent, loss to follow-up, or death (up to approximately 24 months)An AE is any untoward medical occurrence in a participant administered a pharmaceutical product and which does not necessarily have to have a causal relationship with the treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of a pharmaceutical product, whether or not considered related to the pharmaceutical product. Pre-existing conditions which worsen during a study are also considered as AE.

Secondary

MeasureTime frameDescription
Percentage of Participants Considered Improved on the Clinical Global Impression of Change (CGI-C) ScaleFrom enrollment up to the duration of the study or until withdrawal of consent, loss to follow-up, or death (up to approximately 24 months)The CGI-C is used to score a clinician's impression of a participant's change in global health. The CGI-C is a single item measure of change in global health, using seven response options: "very much improved", "much improved", "minimally improved", "no change", "minimally worse", "much worse", and "very much worse". Participants considered as "improved" include responses of "very much improved, "much improved" and "minimally improved".

Countries

Puerto Rico, United States

Contacts

STUDY_DIRECTORClinical Trials

Hoffmann-La Roche

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 10, 2026