The dash for MASH is gaining momentum, with Roche AG acquiring 89bio Inc. and its phase III FGF21 analogue, pegozafermin, for treating metabolic dysfunction-associated steatohepatitis, in a deal worth up to $3.5 billion. The Swiss pharma is to pay $14.50 per share, valuing San Francisco-based 89Bio at $2.4 billion, a premium of approximately 52% to 89bio’s 60-day average price on Sept. 17, 2025. Shares of 89bio (NASDAQ:ETNB) gained $6.88, or 85%, to close Sept. 18 at $14.96.
Advertisements for Rezdiffra (resmetirom, Madrigal Pharmaceuticals Inc.), which was approved by the U.S. FDA in March 2024, adorned the lobby of The Liver Meeting 2024 being held at the San Diego Convention Center as well as the trolley stop across the street and other areas that doctors attending the meeting might be swayed. But inside the ballrooms of the convention center, companies were making presentations of data from clinical trials testing their drugs in patients with metabolic dysfunction-associated steatohepatitis (MASH) in hopes of potentially competing with Rezdiffra in a few years.
For the time being, Madrigal Pharmaceuticals Inc.’s Rezdiffra (resmetirom) stands alone as the only U.S. FDA approved treatment for treating nonalcoholic steatohepatitis (NASH). But new and positive data from multiple companies show Madrigal may soon have company.
Akero Therapeutics Inc.’s phase IIb data with FGF21 analogue efruxifermin (EFX) in patients with pre-cirrhotic metabolic dysfunction-associated steatohepatitis (MASH) kept interest alive in the face-off between the company and 89bio Inc. with pegozafermin, another FGF21 drug targeting MASH, for which a phase III study is planned.
Hopes raised by the phase IIb Harmony study with FGF21 analogue efruxifermin (EFX) in pre-cirrhotic nonalcoholic steatohepatitis (NASH), which appeared in a scientific journal last week, were less than fulfilled as Akero Therapeutics Inc. rolled out disappointing 36-week results from another, same-stage trial called Symmetry in NASH patients with cirrhosis. The company is forging ahead with U.S. FDA talks to figure out how a phase III effort might be designed.
89bio Inc.’s top-line phase IIb data from the 216-subject study called Enliven testing pegozafermin in nonalcoholic steatohepatitis (NASH) pushed shares (NASDAQ:ETNB) to a closing price March 22 of $13.68, up $2.75, or 25%. The drug, due next for phase III investigation, is a glycopegylated analogue of fibroblast growth factor 21.
Shares in Akero Therapeutics Inc. more than doubled in value after the company announced results from a phase IIb nonalcoholic steatohepatitis trial that it believes show lead candidate efruxifermin could challenge other candidates in development for the fatty liver disease targeted by so many biotechs and big pharmas.
Missing the primary endpoint in a phase IIb study of aldafermin for treating nonalcoholic steatohepatitis (NASH) has caused NGM Biopharmaceuticals Inc. to halt the program’s development while rattling the company’s share value. But the failure didn’t stop there as other NASH therapy developers felt the reverberations. South Francisco-based NGM’s stock (NASDAQ:NGM) took a battering May 24 as shares closed down 40.77% at $16.81 each. Others in the NASH space rocked by NGM’s negative data on the day included San Francisco-based 89bio Inc., which is prepping BIO89-100, a glycopegylated FGF21 analogue for a phase IIb NASH study. 89bio’s stock (NASDAQ:ETNB) plunged 14.24% to close at $19.40 per share.
Strongly positive histological data from Akero Therapeutics Inc. is being seen as setting a potentially new high bar in treating nonalcoholic steatohepatitis (NASH), but 89bio Inc.’s NASH treatment, on a similar development timeline, is sharing in the success.
