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A multicenter observational study for the higher dose regimen of Nusinersen

A multicenter observational study for the higher dose regimen of Nusinersen - A multicenter observational study for the higher dose regimen of Nusinersen

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
JPRN
Registry ID
JPRN-UMIN000061891
Enrollment
40
Registered
2026-06-12
Start date
2026-06-12
Completion date
Unknown
Last updated
2026-06-29

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

Conditions

Participants with later-onset 5q spinal muscular atrophy (SMA)

Interventions

None listed

Sponsors

Kagoshima University Graduate School of Medical and Dental Sciences
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Patients must meet all of the following criteria: (1) Patients who are scheduled to initiate or have already initiated high-dose nusinersen under routine clinical practice. (2) Patients who are able to provide written informed consent by themselves. Patients must be able to understand the purpose and risks of the study, and written informed consent must be obtained in accordance with national and local data protection laws. If the patient has sufficient decision-making capacity but has difficulty writing due to progression of the underlying disease, written informed consent may be obtained by proxy writing, provided that the patient's willingness to participate is confirmed and a witness is present. (3) Patients with a genetically confirmed diagnosis of late-onset 5q spinal muscular atrophy (SMA) (Type II, Type III, or Type IV). (4) Patients who are 18 years of age or older at the time of obtaining informed consent. (5) Patients who are able to attend follow-up visits at least once per year during the study period.

Exclusion criteria

Exclusion criteria: Candidates will be excluded from study entry if any of the following criteria apply at screening: (1) Medical or psychiatric conditions that may interfere with the ability to comply with study procedures or assessments. (2) Current enrollment in ASCEND or any other investigational nusinersen trial. (3) Current or planned enrollment in an investigational trial for SMN-directed therapy or SMA gene therapy. (4) Patients who are deemed inappropriate as observational study participants by the principal investigator or a sub-investigator.

Design outcomes

Primary

MeasureTime frame
Change from baseline to 12 months in MFI-20 total score

Countries

Japan

Contacts

Public ContactRie Yokokawa

EPS Corporation Clinical Research Center, RWE Division

prj-hd-nus-office@eps.co.jp06-7176-5731

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026