X-linked Charcot-Marie-Tooth disease type 4
Synonyms: CMT4X | CMTX4 | Cowchock syndrome
X-linked Charcot-Marie-Tooth disease type 4 is a rare genetic axonal peripheral sensorimotor neuropathy characterized by an X-linked recessive inheritance pattern and the neonatal- to early childhood-onset of severe slowly progressive distal muscle weakness and atrophy (in particular of the peroneal group) as well as sensory impairment (with the lower extremities being more affected than the upper extremities) pes cavus areflexia and hammertoes. Sensorineural hearing loss and cognitive impairment may also be associated. Females are asymptomatic and do not display the phenotype.
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
X-linked Charcot-Marie-Tooth disease type 4?
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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.
DDX3X Foundation
Our mission is to connect families, resources, and the medical community to advance research for a treatment or cure to DDX3X Syndrome. Our ultimate goal is to accelerate brain function in individuals affected by DDX3X Syndrome through advances in cell and gene therapy and pharmaceuticals.
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.