Armed with promis­ing alope­cia PhII, Con­cert edges for­ward with mod­i­fied JAK in­hibitor — but safe­ty will still be key

Con­cert Phar­ma has scored a fresh round of pos­i­tive Phase II da­ta for its JAK in­hibitor amid an on­go­ing ri­val­ry with Pfiz­er, paving the way for a late-stage show­down in alope­cia area­ta. It’s al­so cau­tious­ly stak­ing a claim about safe­ty at a time the whole class is un­der a cloud of un­cer­tain­ty.

The glow­ing re­sults — in which both the 8 mg and 12 mg twice-dai­ly dos­es of CTP-543 hit the pri­ma­ry end­point of re­liev­ing hair loss — re­couped some en­thu­si­asm for the drug lost in its in­ter­im read­out. In­ves­ti­ga­tors re­port­ed that 58% of pa­tients in the 12 mg co­hort achieved at least 50% rel­a­tive re­duc­tion in the over­all Sever­i­ty of Alope­cia Tool (SALT) while 47% in the 8 mg group saw that im­prove­ment, com­pared to 9% for place­bo (p <0.001 in both cas­es).

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