Gilead Sciences Inc. has officially discontinued work on anti-CD47 antibody magrolimab in hematologic cancers, nearly four years after shelling out $4.9 billion to acquire its developer, Forty Seven Inc. The company announced in its full-year 2023 earnings Feb. 6 call that the phase III Enhance-3 study testing magrolimab as a first-line treatment in unfit acute myeloid leukemia patients was discontinued following a futility analysis and higher incidence of grade 5 adverse events.
4DMT Molecular Therapeutics Inc. is looking ahead to phase III as positive data continue to roll out for gene therapy candidate 4D-150 in wet age-related macular degeneration (AMD), with the results from the phase II portion of the phase I/II Prism trial showing the single-shot treatment significantly reduced the need for chronic anti-VEGF injections. Presented over the weekend at the Angiogenesis, Exudation, and Degeneration 2024 Conference, results from the 24-week dose-expansion cohort, which comprised wet AMD patients with severe disease and high treatment burdens, showed patients receiving the high dose (3E10 vg/eye) had a 90% reduction in annualized anti-VEGF injection rates.
Sarepta Therapeutics Inc.’s next-generation peptide-conjugated PMO therapy, SRP-5051 (vesleteplirsen), looks set to stake its claim in the Duchenne muscular dystrophy (DMD) space, as phase II data unveiled dystrophin expression that outperforms first-generation exon-skipping drug Exondys 51 (eteplirsen). The question is what that space might look like in the wake of a U.S. FDA decision whether to expand labeling and convert to full approval Sarepta’s DMD gene therapy, Elevidys (delandistrogene moxeparvovec).
Shares of Corbus Pharmaceuticals Inc. (NASDAQ:CRBP) doubled on opening Jan. 26 and ended the day up a whopping 249% as investors got a look at data from a first-in-human study testing next-generation Nectin-4-targeted antibody-drug conjugate (ADC) CRB-701. Licensed from CSPC Pharmaceutical Group for $7.5 million up front in February 2023, CRB-701 has IND clearance from the U.S. FDA, and Corbus plans to start its own clinical testing in the first quarter of 2024.
What had been viewed as a major catalyst for Gilead Sciences Inc. going into 2024 turned into a disappointment on the stock market, as antibody-drug conjugate Trodelvy (sacituzumab govitecan) failed to meet the overall survival primary endpoint in the phase III Evoke-01 study in previously treated metastatic non-small-cell lung cancer (NSCLC).
Kyverna Therapeutics Inc. disclosed a filing to raise up to $100 million in an IPO, becoming the sixth firm to announce plans for a U.S. listing in the new year, offering tentative hope that the public markets might prove more welcoming to biopharma firms after a lackluster 2023.
“This is a tough business. It’s never a straight line from start to success.” Those words, from Exelixis Inc. CEO Michael Morrissey, during a presentation at the J.P. Morgan Healthcare Conference (JPM), could easily sum up any aspect of the biopharma industry. But with more biopharma firms than ever having reached commercial status, along with the introduction of new therapeutic modalities into the health care market, many are finding the toughest part comes after regulatory approval, whether it’s navigating a competitive landscape, getting payers and physicians on board, or satisfying regulators’ stringent postmarketing requirements. As industry players and observers head home after a busy week in San Francisco, BioWorld offers a brief glimpse at a few firms taking on those post-approval challenges in 2024.
The zeal for antibody-drug conjugates (ADCs), a prominent focus for dealmaking in 2023, shows no signs of waning, as Johnson & Johnson greeted attendees of the J.P. Morgan Healthcare Conference (JPM) with news of its $2 billion buyout of Ambrx Biopharma Inc., picking up rights to an ADC platform along with a promising candidate targeting advanced prostate cancer. Under the terms, J&J agreed to acquire all outstanding shares of San Diego-based Ambrx for $28 apiece, marketing a 105% premium to the firm’s Jan. 5 closing price. Unsurprisingly, Ambrx’s stock (NASDAQ:AMAM) gained 101.5% to close Jan. 8 at $27.47.
With its launch barely three years in the rearview mirror, Remix Therapeutics Inc. has inked its second potential $1 billion pharma collaboration, drawing Roche Holding AG to the table with the promise of its RNA processing platform and the potential to develop small-molecule therapeutics targeting the underlying drivers of disease. At the same time, the Watertown, Mass.-based firm added $60 million in a venture round, bringing its total financing to date to $201 million.
Shares of Corcept Therapeutics Inc. (NASDAQ:CORT) fell 26% Jan. 2 on news that a U.S. court determined that Teva Pharmaceuticals Ltd. does not infringe on patents related to use of cortisol receptor blocker Korlym (mifepristone) in Cushing’s syndrome, opening the possibility of Teva’s generic version to enter the market.
