Watch out Al­ny­lam/Io­n­is: Pfiz­er’s pos­i­tive PhI­II tafamidis da­ta makes drug a new ri­val

Pfiz­er $PFE re­port­ed out some good news from a late-stage tri­al test­ing its drug tafamidis against a rare con­di­tion that leads to heart fail­ure. The pos­i­tive re­sults of the Phase III study have both Al­ny­lam $AL­NY and Io­n­is $IONS in­vestors squea­mish, as it could be com­pe­ti­tion for patisir­an and in­ot­ersen.

The Pfiz­er tri­al, called AT­TR-ACT, test­ed its drug tafamidis in pa­tients with transthyretin car­diomy­opa­thy, an in­her­it­ed con­di­tion in which pro­teins don’t fold in­to their nor­mal shapes cor­rect­ly. The mis­fold­ing makes them build up and cause dam­age to the nerves, heart, and oth­er or­gans. In the tri­al, the drug met its pri­ma­ry end­point, Pfiz­er said, and demon­strat­ed a sta­tis­ti­cal­ly sig­nif­i­cant re­duc­tion in the com­bi­na­tion of all-cause mor­tal­i­ty and fre­quen­cy of car­dio­vas­cu­lar-re­lat­ed hos­pi­tal­iza­tions com­pared to place­bo at 30 months.

Unlock this article instantly by becoming a free subscriber.

You’ll get access to free articles each month, plus you can customize what newsletters get delivered to your inbox each week, including breaking news.

SIGN UP LOG IN BECOME A PREMIUM SUBSCRIBER