Ali­gos chops off a he­pati­tis B pro­gram — again — af­ter a pa­tient was briefly hos­pi­tal­ized

Ali­gos is fac­ing an­oth­er set­back af­ter a Phase I study missed the mark and re­vealed safe­ty is­sues for an an­ti­sense chron­ic he­pati­tis B pro­gram. And it’s spurring a broad­er in­ter­nal shift.

The biotech an­nounced Tues­day it will dis­con­tin­ue de­vel­op­ment of ALG-020572 af­ter a chron­ic he­pati­tis B pa­tient was sent to the hos­pi­tal to treat an ad­verse event. Ali­gos said the sub­ject ex­pe­ri­enced a “sig­nif­i­cant in­crease in ala­nine amino­trans­ferase” af­ter mul­ti­ple dos­es and was one of four pa­tients to see po­ten­tial­ly drug-re­lat­ed ALT flares in this co­hort.

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