Spinocerebellar ataxia type 49

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ORPHA:631106OMIM:619806G11.4
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8Treatment centers

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Overview

Spinocerebellar ataxia type 49 (SCA49) is an extremely rare inherited neurological disorder that affects the cerebellum, the part of the brain responsible for coordinating movement and balance. It belongs to a large family of spinocerebellar ataxias, which are progressive conditions that cause problems with walking, coordination, and balance. SCA49 is caused by mutations in the SAMD9L gene. People with this condition typically develop progressive difficulty with walking and coordination (ataxia), which may worsen over time. Other symptoms can include slurred speech, problems with eye movements, and difficulties with fine motor tasks like writing or buttoning clothes. Because SCA49 is so recently described and extremely rare, the full range of symptoms and the typical disease course are still being studied. There is currently no cure for SCA49. Treatment focuses on managing symptoms and maintaining quality of life through physical therapy, occupational therapy, speech therapy, and assistive devices as needed. Research is ongoing to better understand this condition and develop targeted treatments.

Key symptoms:

Progressive difficulty with balance and walkingUncoordinated movementsSlurred or slow speechDifficulty with fine motor tasks like writingAbnormal eye movementsUnsteady gaitTremorMuscle stiffness or spasticityDifficulty swallowingFatigue

Inheritance

Autosomal dominant

Passed on from just one parent; each child has about a 50% chance of inheriting it

Age of Onset

Variable

Can begin at different ages, from infancy through adulthood

Orphanet ↗OMIM ↗NORD ↗

Treatments

No FDA-approved treatments are currently listed for Spinocerebellar ataxia type 49.

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No actively recruiting trials found for Spinocerebellar ataxia type 49 at this time.

New trials open frequently. Follow this disease to get notified.

Search ClinicalTrials.gov ↗Join the Spinocerebellar ataxia type 49 community →

No specialists are currently listed for Spinocerebellar ataxia type 49.

View NORD Rare Disease Centers ↗Undiagnosed Disease Network ↗

Treatment Centers

8 centers
🏥 NORD

Baylor College of Medicine Rare Disease Center

Baylor College of Medicine

📍 Houston, TX

🏥 NORD

Stanford Medicine Rare Disease Center

Stanford Medicine

📍 Stanford, CA

🔬 UDN

NIH Clinical Center Undiagnosed Diseases Program

National Institutes of Health

📍 Bethesda, MD

🔬 UDN

UCLA UDN Clinical Site

UCLA Health

📍 Los Angeles, CA

🔬 UDN

Baylor College of Medicine UDN Clinical Site

Baylor College of Medicine

📍 Houston, TX

🔬 UDN

Harvard/MGH UDN Clinical Site

Massachusetts General Hospital

📍 Boston, MA

🏥 NORD

Mayo Clinic Center for Individualized Medicine

Mayo Clinic

📍 Rochester, MN

👤 Mayo Clinic Center for Individualized Medicine

🏥 NORD

UCLA Rare Disease Day Program

UCLA Health

📍 Los Angeles, CA

Travel Grants

No travel grants are currently matched to Spinocerebellar ataxia type 49.

Search all travel grants →NORD Financial Assistance ↗

Community

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Latest news about Spinocerebellar ataxia type 49

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Caregiver Resources

NORD Caregiver Resources

Support, advocacy, and financial assistance for caregivers of rare disease patients.

Mental Health Support

Rare disease caregiving can be isolating. Connect with counseling and peer support.

Family & Caregiver Grants

Financial assistance programs specifically for caregivers of rare disease patients.

Social Security Disability

Learn how rare disease patients may qualify for SSDI/SSI benefits.

Questions for your doctor

Bring these to your next appointment

  • Q1.How quickly is this condition likely to progress in my case?,What therapies do you recommend to help maintain my mobility and independence?,Should my family members be tested for the SAMD9L gene mutation?,Are there any clinical trials or research studies I could participate in?,What symptoms should prompt me to seek urgent medical attention?,How often should I have follow-up appointments and brain imaging?,Can you refer me to a genetic counselor to discuss family planning and inheritance?

Common questions about Spinocerebellar ataxia type 49

What is Spinocerebellar ataxia type 49?

Spinocerebellar ataxia type 49 (SCA49) is an extremely rare inherited neurological disorder that affects the cerebellum, the part of the brain responsible for coordinating movement and balance. It belongs to a large family of spinocerebellar ataxias, which are progressive conditions that cause problems with walking, coordination, and balance. SCA49 is caused by mutations in the SAMD9L gene. People with this condition typically develop progressive difficulty with walking and coordination (ataxia), which may worsen over time. Other symptoms can include slurred speech, problems with eye movements

How is Spinocerebellar ataxia type 49 inherited?

Spinocerebellar ataxia type 49 follows a autosomal dominant inheritance pattern. Genetic counseling can help families understand recurrence risk and testing options.