Im­muno­vant vol­un­tar­i­ly halts stud­ies on sole drug af­ter sur­prise cho­les­terol find­ings, FcRn ri­val ar­genx surges

Near­ly a year af­ter re­leas­ing their first proof-of-con­cept da­ta, Im­muno­vant’s grand plans for their au­toim­mune dis­ease an­ti­body have hit a snag.

The Pe­te Salz­mann-led Roivant spin­out an­nounced Tues­day that they vol­un­tar­i­ly paused dos­ing on its on­ly two on­go­ing clin­i­cal tri­als af­ter they were sur­prised to find that, in one study, pa­tients on the high dose of the drug saw their LDL, com­mon­ly known as “bad cho­les­terol,” rise 60% af­ter 12 weeks. Pa­tients on the low dose of the drug saw a jump of 40%, while the place­bo stayed flat.

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