Royalty Pharma to pay $1 billion for Roche's SMA drug royalties
Spinal muscular atrophy, a leading genetic cause of infant deaths, prevents the body from producing a protein necessary for neuromuscular development. Royalty Pharma said the agreement with PTC increases its ownership of the Evrysdi royalty from 43% to 81%, equating to a royalty of 6.5% to 13%. The company had in 2020 purchased about 43% of PTC's royalty interest in risdiplam for a one-time payment of $650 million.