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US FDA grants breakthrough therapy designation to NS Pharmas NS-089/NCNP-02 to reat Duchenne muscular dystrophy

NS Pharma, Inc. announced the US Food & Drug Administration (FDA) has granted Breakthrough Therapy Designation to NS-089/NCNP-02, an investigational candidate for patients with Duchenne muscular dystrophy amenable to exon 44 skipping therapy.

The Breakthrough Therapy Designation for NS-089/NCNP-02 is based on results from a first-in-human, investigator-initiated clinical trial conducted in Japan. The FDA issues Breakthrough Therapy Designation to expedite the development and review of medicines which are intended to treat serious or life-threatening diseases. The criteria require preliminary clinical evidence that indicates the drug may demonstrate substantial improvement over available therapies on a clinically meaningful endpoint(s). In July 2023, NS-089/NCNP-02 was granted Rare Paediatric Disease Designation by the FDA.

NS-089/NCNP-02 is an antisense nucleotide discovered through joint research between NS Pharma's parent company, Nippon Shinyaku, and the National Center of Neurology and Psychiatry.

Clinical development of NS-089/NCNP-02 includes a planned phase 2 study in the United States conducted by NS Pharma and a phase 2 study conducted in Japan by Nippon Shinyaku. Additional details will be provided once the trials are ready to begin enrolling participants.

Duchenne is a progressive form of muscular dystrophy that occurs primarily in males. Duchenne causes progressive weakness and loss of skeletal, cardiac, and respiratory muscles. Early signs of Duchenne may include delayed ability to sit, stand or walk. There is a progressive loss of mobility, and by adolescence, patients with Duchenne may require the use of a wheelchair. Cardiac and respiratory muscle problems begin in the teenage years and lead to serious, life-threatening complications.