Charcot-Marie-Tooth disease type 4J
Synonyms: CMT4J
Charcot-Marie-Tooth disease type 4J is a subtype of Charcot-Marie-Tooth disease type 4 characterized by childhood- to adulthood-onset of variably severe rapidly progressive axonal and demyelinating sensorimotor neuropathy typically manifesting with delayed motor development proximal and distal asymmetric muscle weakness and atrophy of the lower and upper extremities severe motor dysfunction with mildly reduced sensory impairment and areflexia. Nerve conduction velocities range from very mildly to severely reduced.
Data from Orphanet are used to provide information on a disease's name, synonym(s), and overview.
Reference: Access aggregated data from Orphanet at Orphadata.
Orphadata: Free access data from Orphanet. © INSERM 1999. Available on http://www.orphadata.org. Data version April 2024
Newly diagnosed with
Charcot-Marie-Tooth disease type 4J?
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Advocacy Organizations
COMBINEDBrain Inc
COMBINEDBrain is a consortium for outcome measures and biomarkers for neurodevelopmental disorders. We are collaborating to cure rare, non-verbal brain disorders.
Charcot-Marie-Tooth Association
To develop drugs to treat or cure CMT and to help improve the quality of life for those living with CMT.
CureCMT4J/Talia Duff Foundation
CureCMT4J's primary mission is to generate awareness and support for expediting therapeutic development for CMT4J. CureCMT4J also advocates for and promotes research and awareness for all rare diseases.
Hereditary Neuropathy Foundation
Hereditary Neuropathy Foundation (HNF) is a non-profit 501(c)3 organization which mission is to increase awareness and accurate diagnosis of Charcot-Marie-Tooth (CMT) and related inherited neuropathies, support patients and families with critical information to improve quality of life, and fund research that will lead to treatments and cures.
Moonshots for Unicorns
Curing single-gene disorders
Project CASK
To fund research for treatment and/or a cure for CASK Gene Disorder
Syndromes Without A Name (SWAN) Australia
Provide information, support and advocacy to families caring for a child with an undiagnosed or rare genetic condition.
Clinical Trials
For a list of clinical trials in this disease area, please click here.