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2026 data Public-data reference. official source

Spinal Muscular Atrophy

Open-data reference.

23 US clinical trials · 6 currently recruiting

Active & Recent Trials

RECRUITING NA 90 participants

Study of an Intrathecal Port and Catheter System for Subjects With Spinal Muscular Atrophy

Alcyone Therapeutics

NCT05866419

RECRUITING Phase 2 54 participants

Safety and Efficacy of NMD670 in Ambulatory Adult Patients With Type 3 Spinal Muscular Atrophy

NMD Pharma A/S

NCT05794139

RECRUITING Phase 2 52 participants

A Study to Evaluate How Apitegromab Works in Subjects Who Are Less Than 2 Years Old and Have Spinal Muscular Atrophy

Scholar Rock

NCT07047144

RECRUITING NA 50 participants

Effects of Whole-body Electrical Muscle Stimulation Exercise on Adults With Neuromuscular Disease

University of Missouri-Columbia

NCT07478172

RECRUITING 45 participants

Characterizing Perceived Physical Fatigability in Nusinersen-treated SMA

Columbia University

NCT06955897

RECRUITING 24 participants

Exploring the Physiologic, Pharmacodynamic, and Clinical Responses of Skeletal Muscle in Patients With Spinal Muscular Atrophy Treated With SMN-Directed Therapies

St. Jude Children's Research Hospital

NCT06532474

ACTIVE NOT RECRUITING Phase 4 404 participants

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

Genentech

NCT05232929

ACTIVE NOT RECRUITING Phase 3 269 participants

A Study to Evaluate the Efficacy and Safety of Taldefgrobep Alfa in Participants With Spinal Muscular Atrophy

Biohaven Pharmaceuticals

NCT05337553

ACTIVE NOT RECRUITING Phase 3 238 participants

Long-Term Safety & Efficacy of Apitegromab in Patients With SMA Who Completed Previous Trials of Apitegromab

Scholar Rock

NCT05626855

ACTIVE NOT RECRUITING 148 participants

Spinraza in Adult Spinal Muscular Atrophy

Washington University School of Medicine

NCT03709784

ACTIVE NOT RECRUITING Phase 3 45 participants

A Study to Learn About the Effect of Higher Doses of Nusinersen (BIIB058) Given as Injections to Participants With Spinal Muscular Atrophy (SMA) Who Were Previously Treated With Risdiplam (ASCEND)

Biogen

NCT05067790

ACTIVE NOT RECRUITING Phase 4 10 participants

Risdiplam in Patients With Spinal Muscular Atrophy Previously Treated With Nusinersen

Clinic for Special Children

NCT05522361

ACTIVE NOT RECRUITING NA 6 participants

COMMAND Early Feasibility Study: Implantable BCI to Control a Digital Device for People With Paralysis

Synchron Medical

NCT05035823

ACTIVE NOT RECRUITING NA 4 participants

Pediatric Powered Wheelchair Standing Devices: An Exploratory Study

Grand Valley State University

NCT05117827

ACTIVE NOT RECRUITING NA 3 participants

Spinal Cord Stimulation for the Treatment of Motor Deficits in People With Spinal Muscular Atrophy - Upper Limb

Marco Capogrosso

NCT06300996

COMPLETED 230 participants

Genetics of Pediatric-Onset Motor Neuron and Neuromuscular Diseases

Nemours Children's Clinic

NCT02532244

COMPLETED Phase 3 188 participants

Efficacy and Safety of Apitegromab in Patients With Later-Onset Spinal Muscular Atrophy Treated With Nusinersen or Risdiplam

Scholar Rock

NCT05156320

COMPLETED Phase 2 174 participants

A Study of Risdiplam (RO7034067) in Adult and Pediatric Participants With Spinal Muscular Atrophy

Hoffmann-La Roche

NCT03032172

COMPLETED 130 participants

A Pilot Study of Biomarkers for Spinal Muscular Atrophy

Carelon Research

NCT00756821

COMPLETED 120 participants

Clinical Study of Spinal Muscular Atrophy

Columbia University

NCT00443066

COMPLETED Phase 2 58 participants

An Active Treatment Study of SRK-015 in Patients With Type 2 or Type 3 Spinal Muscular Atrophy

Scholar Rock

NCT03921528

COMPLETED 34 participants

Mechanisms and Treatment of Exercise Intolerance and Persistent Fatigue in Spinal Muscular Atrophy

Columbia University

NCT05518773

COMPLETED 25 participants

Mechanisms of Cell Death in Spinal Muscular Atrophy

Nemours Children's Clinic

NCT01754441

Phase Distribution

PhaseTrial count
Phase 2 4
Phase 3 4
Phase 4 2

Source: ClinicalTrials.gov, National Library of Medicine. Data is informational only.

Reading the Spinal Muscular Atrophy Trial Landscape

ClinicalTrials.gov lists 23 US studies indexed under Spinal Muscular Atrophy, and 6 of those are currently open to recruitment — roughly 26% of the total volume on the registry. That ratio is a useful proxy for activity level: a high share of recruiting studies often signals that research interest is current and that new enrollment opportunities are appearing, while a low share typically means the field is dominated by completed or follow-up work where most participant spots have already been filled. These counts reflect the public registry only and include studies at every stage of design, so they should be read as an index of research attention rather than as a measure of treatment availability.

The phase distribution for Spinal Muscular Atrophy shows 6 late-stage studies (Phase 3 and Phase 4 combined) alongside 4 earlier-phase entries (Phase 1 through Phase 2). Phase 1 and Phase 2 studies focus on early safety signals, dosing, and preliminary effect, while Phase 3 studies are typically the larger efficacy and safety trials submitted toward regulatory review, and Phase 4 studies follow approved interventions in real-world use. A condition weighted toward later phases often reflects a mature research pipeline with several interventions already close to or past approval, whereas a heavier early-phase tilt suggests the field is still exploring new mechanisms and candidate approaches.

Top sponsor activity for Spinal Muscular Atrophy is led by Scholar Rock with 4 indexed trials, alongside 9 other organizations in the top contributor list. The list on this page surfaces up to 23 of the most relevant recent and active entries, ordered with recruiting studies first so practical options are visible. All figures are derived from the public ClinicalTrials.gov dataset maintained by the National Library of Medicine and are reproduced here for reference. Inclusion of a trial, sponsor, or intervention on this page is neither an endorsement nor a recommendation — eligibility, protocol changes, and site-level status can shift frequently, so always verify current details on ClinicalTrials.gov and consult a qualified healthcare provider before acting on anything you see here.

Frequently Asked Questions

How many clinical trials are there for Spinal Muscular Atrophy?

PlainTrial tracks 23 US clinical trials for Spinal Muscular Atrophy, of which 6 are currently recruiting participants. Data sourced from ClinicalTrials.gov.

How do I find a recruiting trial for Spinal Muscular Atrophy?

Use the trial list above filtered by "Recruiting" status, or visit our trial finder at /recruiting to search by condition and state. Always discuss trial participation with your healthcare provider before enrolling.

Is this data current?

Data is sourced from ClinicalTrials.gov and reflects our most recent data pull. Trial status may have changed since then. Always verify current information at ClinicalTrials.gov before making decisions about participation.

Related

Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainTrial Editorial

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from ClinicalTrials.gov (National Library of Medicine). Consult a qualified professional before making decisions based on this data.

Source: ClinicalTrials.gov (NIH/NLM) ClinicalTrials.gov AACT registry · 2024 Trial counts and statuses sourced from ClinicalTrials.gov. Sponsor counts include both industry and federal/academic sponsors.

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