After two decades of work with Translarna (ataluren) for nonsense mutation Duchenne muscular dystrophy, PTC Therapeutics Inc. withdrew its bid for approval of the compound upon hearing from the U.S. FDA. Regulators told Warren, N.J.-based PTC that the data package for Translarna is “unlikely to meet the agency's threshold of substantial evidence of effectiveness.”

Genescience Pharmaceuticals Co. Ltd. has identified sodium-dependent neutral amino acid transporter B(0)AT1 (SLC6A19) inhibitors reported to be useful for the treatment of phenylketonuria (PKU).

Genescience Pharmaceuticals Co. Ltd. has identified phenylalanine hydroxylase (PAH) (R408W mutant) stabilizers reported to be useful for the treatment of phenylketonuria (PKU).

PTC Therapeutics Inc. will be launching its oral phenylketonuria therapy, Sephience (sepiapterin) in both the U.S. and Europe this summer, following the U.S. FDA approval just ahead of its July 29 PDUFA date. Sephience previously gained marketing authorization by the European Commission, roughly three months after a thumbs up from the EMA’s Committee for Medicinal Products for Human Use.

Agios Pharmaceuticals Inc. has patented new 4-pyrazolo[1,5-a]pyridin-2-yl-4,5,6,7-tetrahydro-1h-imidazo[4,5-c]pyridine derivatives acting as phenylalanine hydroxylase (PAH) R408W mutant stabilizers reported to be useful for the treatment of phenylketonuria.

Agios Pharmaceuticals Inc. has synthesized phenylalanine hydroxylase (PAH) R408W mutant stabilizers reported to be useful for the treatment of phenylketonuria.