Complete Response on Saol Therapeutics NDA

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FDA has issued Saol Therapeutics a complete response letter (CRL) on its NDA for SL1009 (sodium dichloroacetate oral solution) for treating an orphan pediatric mitochondrial disease, Pyruvate Dehydrogenase Complex Deficiency (PDCD). There are about 1,000 children in the U.S. with PDCD, a rare and life-threatening genetic disorder that can cause chronic energy deficit leading to lactic acidosis, profound developmental problems, and early childhood death, the company says.

“The FDA provided specific observations within the CRL that Saol will need to address to clarify the path forward,” the company says. “These observations did not include any findings regarding the manufacturing of SL1009. To address the deficiencies as the FDA requested, it would take several years and require significant financial resources.” Saol says it remains encouraged by the four years of clinical data documented through two Phase 3 studies, a double-blind placebo-controlled trial that continues in open-label extension, and a survival analysis compared to a natural history cohort.

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