Vanda gets orphan designation for Charcot-Marie-Tooth Disease treatment

 Vanda Pharmaceuticals Inc. (Vanda) (Nasdaq: VNDA) today announced the U.S. Food and Drug Administration (FDA) has granted Orphan Drug Designation for VCA-894A for the treatment of Charcot-Marie-Tooth disease, axonal, type 2S (CMT2S), caused by cryptic splice site variants within IGHMBP2.

CMT2S is a rare subtype of Charcot-Marie-Tooth disease (CMT), an inherited peripheral neuropathy for which there is no available treatment. The estimated prevalence of CMT is 1 in 2,500 individuals, with varying clinical features dependent on the various genetic variants of CMT.1,2 The prevalence of CMT2S is estimated to be less than 1 in 1,000,000 worldwide.3

Onset of CMT2S begins in early childhood.2 CMT2S is characterized by slowly progressive distal muscle weakness and atrophy, affecting the upper and lower limbs in a child's first decade of life, leaving patients with decreased reflexes and sensory impairment.1,2 Because CMT2S is a progressive disease, most patients become wheelchair bound.

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