Vanda Gets IND OK for Rare Disease

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FDA has approved a Vanda Pharmaceuticals IND to evaluate VCA-894A for treating patients with Charcot-Marie-Tooth disease, axonal, Type 2S (CMT2S), caused by cryptic splice site variants within the immunoglobulin mu-binding protein 2 (IGHMBP2) gene.

CMT2S is a rare, inherited peripheral neuropathy for which there is no available treatment. It 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,” the company says.

VCA-894A is described as a novel antisense oligonucleotide (ASO) that targets a cryptic splice site variant within IGHMBP2. “Mutations within IGHMBP2 play a pivotal role in the manifestation of CMT2S, likely due to alpha-motor neuron loss, and consequently peripheral nervous system deterioration,” Vanda says. “ASOs have the capacity to modulate gene expression, allowing for the personalized treatment of rare diseases. Delivery of ASOs to the central nervous system has been previously successful in several ASO programs, with a broad applicability in addressing a number of neurodegenerative and neuromuscular disorders.”

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