Biotech News Brief

Biotech news for Sunday, May 31, 2026, ranked by our 5-dimension investment framework — regulatory, technology, commercial, manufacturing, and narrative.

May 27, 3:55 PM EDT

AbbVie gains approval of Decnupaz for rare hematologic malignancy

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tang90246 The US FDA has approved AbbVie's ( ABBV ) Decnupaz ( pivekimab sunirine) for blastic plasmacytoid dendritic cell neoplasm (BPDCN), an ultra-rare hematologic malignancy. The CD123-directed antibody and alkylating agent conjugate comes with a boxed war…

May 27, 1:13 PM EDT

Apogee falls following phase 2 results for zumilokibart in atopic dermatitis

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gracethang/iStock via Getty Images Although it met all primary and secondary endpoints, Apogee Therapeutics ( APGE ) is down Wednesday afternoon following the release of data from a phase 2 trial of zumilokibart for atopic dermatitis. Separately, Apogee said i…

May 27, 1:06 PM EDT

PTC Therapeutics upgraded at Jefferies on Sephience

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Dmitry Vinogradov Shares of PTC Therapeutics ( PTCT ) ended a three-day decline on Wednesday after Jefferies upgraded the stock to Buy from Hold, expecting the rare disease drugmaker to beat consensus estimates thanks to its phenylketonuria therapy, Sephience.…

May 27, 11:00 AM EDT

Ironwood, AbbVie win U.S. label expansion for Linzess in pediatric constipation

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Ironwood Pharmaceuticals ( IRWD ) announced on Wednesday that the Food and Drug Administration approved a label expansion for its AbbVie ( ABBV )-partnered bowel disorder therapy Linzess to treat children with functional constipation. Launched in 2022, Linzess…