Basel - Novartis Pharma K.K. ('Novartis Pharma') today announced that the Japanese Ministry of Health, Labour and Welfare (MHLW) approved Zolgensma for the treatment of spinal muscular atrophy (SMA) in patients under the age of two, including those who are pre-symptomatic at diagnosis.

Patients must be negative for elevated anti-AAV9 antibodies. A rare, genetic neuromuscular disease caused by a lack of a functional SMN1 gene, SMA results in the rapid and irreversible loss of motor neurons, affecting muscle functions, including breathing, swallowing and basic movement.3 Approximately 60% of all SMA is Type 1. Zolgensma is a one-time gene therapy designed to address the genetic root cause of the disease by replacing the function of the missing or nonworking SMN1 gene. Zolgensma is administered during a single intravenous (IV) infusion, delivering a new working copy of the SMN gene into a patient's cells, halting disease progression. Approximately 15-20 SMA patients in Japan are expected to be eligible for treatment each year. Reimbursement with MHLW is expected by the end of 1H20 and, pending agreement, Zolgensma will be available at that time.

'SMA is the leading genetic cause of infant death and, if left untreated in its most common form, Type 1, leads to death or the need for permanent ventilation by the age of two in more than 90% of cases,' said Kazunari Tsunaba, president and representative director, Novartis Pharma. 'A one-time dose of Zolgensma has the potential to make a truly transformative impact on this life-threatening disease. This is an important day for the children and families in Japan impacted by SMA, both today and in the future.'

Approval is based on the Phase 1 START, START Long-term follow-up, Phase 3 STR1VE-US, Phase 3 SPR1NT and Phase 1/2 STRONG (intrathecal injection) trials. START and STR1VE-US were designed to evaluate the efficacy and safety of a one-time IV infusion of Zolgensma in symptomatic SMA Type 1 patients

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