Suzanne Hollander, MS, RD, LDN; and Timothy Tramontana, MD, offer thoughts on newly FDA-approved sepiapterin for PKU.
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On July 28, 2025, the FDA approved PTC Therapeutics' sepiapterin (Sephience) to treat adult and pediatric patients with phenylketonuria (PKU). Sepiapterin is now the third FDA-approved medication for lowering blood phenylalanine (Phe) levels and can be used alongside a Phe-restricted diet to expand protein tolerance in individuals with sepiapterin-responsive PKU.
"This is a really exciting time in PKU, with a new treatment coming out," said Suzanne Hollander, MS, RD, LDN, metabolic dietitian at Boston Children’s Hospital. "Sepiapterin is an oral Phe-lowering medication just...
Joseph Rossano, MD, discusses how FDA approval of mavacamten introduces a disease-targeted treatment option for adults and pediatric patients weighing 30 kg (66 lbs) or more with symptomatic oHCM.
Mavacamten becomes the first cardiac myosin inhibitor approved for adults and pediatric patients weighing 30 kg (66 lbs) or more with symptomatic oHCM.