ISTH: Sanofi advances leadership in hemophilia with new data for ALTUVIIIO and fitusiran Seven oral presentations across the hemophilia portfolio reinforce Sanofi's commitment to bring potential first- and best-in-class treatments to the rare blood disorders community Interim results from the long-term XTEND-ed phase 3 study demonstrate once-weekly ALTUVIIIO continues to provide highly effective bleed protection New ATLAS phase 3 study data reinforce the potential of fitusiran to provide prophylaxis for peo ...