"The therapy, called Hemgenix, gained US approval from the Food and Drug Administration on November 22 to treat patients with severe #hemophilia B. Shortly after its approval, CSL Behring, the pharmaceutical company commercializing the drug, announced its price: $3.5 million for a one-time dose. It’s now the most expensive drug in the world."
https://www.wired.com/story/the-era-of-one-shot-multi-million-dollar-genetic-cures-is-here/