Actively Recruiting

Age: 18Years +
All Genders
Healthy Volunteers
NCT05177809

RFC1 Natural History Study

Led by Prof. Dr. Matthis Synofzik · Updated on 2026-03-31

150

Participants Needed

10

Research Sites

259 weeks

Total Duration

On this page

AI-Summary

What this Trial Is About

This international, multi-center, multi-modal and prospective observational study aims to determine the phenotypic spectrum and the natural progression of the RFC1 repeat expansion disease, and to seek and validate digital, imaging, and molecular biomarkers that aid in diagnosis and serve as outcome measures in future clinical trials of this novel, but frequent ataxia with late adult-onset.

CONDITIONS

Official Title

RFC1 Natural History Study

Who Can Participate

Age: 18Years +
All Genders
Healthy Volunteers

Eligibility Criteria

Eligible

You may qualify if you...

  • Genetic diagnosis of bi-allelic pathogenic repeat expansions in RFC1
  • Healthy controls must have no signs or history of neurological or psychiatric disease
  • Written informed consent is required
  • Participants must be willing and able to comply with study procedures
Not Eligible

You will not qualify if you...

  • Missing informed consent for RFC1 participants
  • Controls with evidence of neuropathy, neurodegenerative disease, or movement disorder
  • Inability to provide informed consent

AI-Screening

AI-Powered Screening

Complete this quick 3-step screening to check your eligibility

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Trial Site Locations

Total: 10 locations

1

Department of Neuroscience, Central Clinical School, Monash University

Melbourne, Victoria, Australia, 3004

Actively Recruiting

2

Department of Neurology, Ataxia Unit, Universidade Federal de São Paulo

São Paulo, State of São Paulo, Brazil, 04040-003

Actively Recruiting

3

Service de Neurologie, Hôpitaux Universitaires de Strasbourg

Strasbourg, Strasbourg, France, 67000

Actively Recruiting

4

Center for Neurology & Hertie-Institute for Clinical Brain Research, Dept. for Neurodegenerative Diseases

Tübingen, Baden-Wurttemberg, Germany, 72076

Actively Recruiting

5

German Center for Neurodegenerative Diseases (DZNE)

Bonn, North Rhine-Westphalia, Germany, 53127

Actively Recruiting

6

Department of Neurology University Hospital Schleswig Holstein

Lübeck, Schleswig-Holstein, Germany, 23562

Actively Recruiting

7

Università degli Studi di Napoli 'Federico II', c/o AOU Federico II

Naples, Napoli, Italy, 80131

Actively Recruiting

8

IRCCS Fondazione Stella Maris

Pisa, Italy, 56128

Actively Recruiting

9

Centre of Brain Research Neurogenetics Research Clinic, University of Auckland

Auckland, New Zealand, 1142

Actively Recruiting

10

Koç University Hospital, KUTTAM-NDAL

Istanbul, Turkey (Türkiye), 34010

Actively Recruiting

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Research Team

M

Matthis Synofzik, Prof. Dr.

CONTACT

A

Andreas Traschütz, Dr. Dr.

CONTACT

How is the study designed?

Study Type

OBSERVATIONAL

Masking

N/A

Allocation

N/A

Model

N/A

Primary Purpose

N/A

Number of Arms

2

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