Kiniksa touts 3rd ap­proval for ag­ing Ar­c­a­lyst — a good haul for just $5M in cash it paid Re­gen­eron for the drug

Kiniksa bet $5 mil­lion cash back in 2017 that Re­gen­eron’s Ar­c­a­lyst could help pa­tients with re­cur­rent peri­cardi­tis, a painful au­toin­flam­ma­to­ry heart dis­ease. Now, more than three years lat­er, that bet con­tin­ues to pay off.

Reg­u­la­tors ap­proved Ar­c­a­lyst (rilona­cept) to treat re­cur­rent peri­cardi­tis and re­duce the risk of re­cur­rence in pa­tients 12 years and old­er, Kiniksa said on Thurs­day. The Bermu­da-based biotech is plan­ning a com­mer­cial launch — its very first — this April, and will split the prof­its 50/50 with Re­gen­eron.

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