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PubMed This is a summary of 51 peer-reviewed journal articles Updated
Neurology

Fragile X-associated tremor/ataxia syndrome (FXTAS) Resource Guide

At a Glance

Fragile X-associated tremor/ataxia syndrome (FXTAS) is a progressive neurological condition caused by an FMR1 gene premutation. Proper management requires a clear understanding of your genetic risks, tracking symptom progression, and building a multidisciplinary care team.

Welcome to the Fragile X-associated tremor/ataxia syndrome (FXTAS) Resource Guide. Being diagnosed with FXTAS can be an overwhelming and confusing experience, especially if you have been on a long “diagnostic odyssey” searching for answers. This guide is designed to empower you with evidence-based information about your condition, what it means for your body, and how to build the right care team for the journey ahead.

FXTAS is a late-onset, progressive neurological condition caused by a specific genetic trait known as the FMR1 premutation. While it shares symptoms with other movement disorders like Parkinson’s disease or essential tremor, its underlying biology and required treatments are unique. Because it is a hereditary condition, a diagnosis also holds important information for your broader family tree.

This guide is broken down into five core sections. We encourage you to read through them at your own pace and bring any questions to your medical team.

In This Guide:

01

The Biology of FXTAS: Understanding the Premutation

Learn about the biology behind Fragile X-associated Tremor/Ataxia Syndrome (FXTAS). Understand the FMR1 premutation, CGG repeats, and causes of symptoms.

02

Tracking the Journey: Symptoms and Progression

Learn about FXTAS symptoms and disease progression. Understand the Hagerman Staging System, motor and cognitive signs, and what to expect in later stages.

03

The Road to a Diagnosis: Genetics and Imaging

Learn how Fragile X-associated tremor/ataxia syndrome (FXTAS) is diagnosed. Understand FMR1 genetic testing, MRI findings like the MCP sign, and misdiagnosis.

04

Navigating Care: Managing Symptoms and Building Your Team

Learn how to manage FXTAS symptoms and build a multidisciplinary care team. Understand treatment options for tremors, ataxia, and what to ask your doctor.

05

Family, Genetics, and Your Future with FXTAS

Understand how the FMR1 gene and FXTAS affect your family. Learn about inheritance patterns, the risk of Fragile X Syndrome, FXPOI, and daily management tips.

Remember, you are not navigating this alone. Equip yourself with this knowledge so you can advocate for the highly personalized, multidisciplinary care you deserve.

Common questions in this guide

What causes Fragile X-associated tremor/ataxia syndrome (FXTAS)?
FXTAS is caused by a specific genetic trait known as the FMR1 premutation. This genetic variation leads to the production of toxic RNA, creating biological 'clogs' that progressively impact the nervous system.
Is FXTAS the same as Parkinson's disease?
No. While FXTAS shares some movement-related symptoms with Parkinson's disease and essential tremor, it is a distinct neurological condition. It has unique underlying biology and requires different, highly personalized treatment approaches.
Does an FXTAS diagnosis mean my family members are at risk?
Because FXTAS is a hereditary condition linked to the FMR1 gene, your diagnosis holds important implications for your biological relatives. It is strongly recommended to work with a genetic counselor to understand the inheritance rules and risks for both men and women in your family tree.
What kind of doctors should I see for FXTAS?
Because FXTAS is a complex condition with both motor and non-motor symptoms, care is best managed by a multidisciplinary team. A neurologist or movement disorder specialist will typically lead your care, alongside genetic counselors and other specialists tailored to your specific needs.

Questions to Ask Your Doctor

Curated prompts to bring to your next appointment.

  1. 1.Are you familiar with the most recent guidelines for FXTAS, and how many patients have you treated with this condition?
  2. 2.Which specialists should I prioritize adding to my care team right now?
  3. 3.Can you refer my family to a genetic counselor to discuss the FMR1 premutation risks?

Questions For You

Tap a prompt to share your answer — we'll use it plus this page's context to start a tailored conversation.

This guide provides educational information about Fragile X-associated tremor/ataxia syndrome (FXTAS). It is not a substitute for professional medical advice, diagnosis, or treatment from a neurologist or genetic specialist.

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