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.
Wall Street will be watching closely for such adverse effects as anemia that foiled Gilead Sciences Inc.’s CD47-binding magrolimab earlier this year, but so far Shattuck Labs Inc.’s SL-172154 looks strong in combination with azacitidine to treat front-line higher-risk myelodysplastic syndrome (HR-MDS) and TP53-mutant (TP53m) acute myeloid leukemia (AML).
Findings published in Nature showing that dual blockage of PD-L1 and CD47 can boost the therapeutic effects of oxaliplatin chemotherapy as well as the FOLFOX regimen – in a CT-26 mice tumor model, anyway – served to highlight CD47, a target that has spurred added efforts of late.
Gilead Sciences Inc. is making a one-time $1.25 billion payment, with a commitment for a royalty that analysts predict could add as much $1.5 billion more, to Viiv Healthcare Ltd., in a deal designed to resolve all global pending or potential patent infringement claims relating to sales of HIV drug Biktarvy (bictegravir/emtricitabine/tenofovir alafenamide). The initial payment, recorded in the fourth quarter of 2021, put a significant dent in Gilead’s earnings per share but removes the uncertainty of a trial outcome and clears the way for future bictegravir-containing products.
Nearly two years after Gilead Sciences Inc. spent $4.9 billion to buy Forty Seven Inc. and its lead candidate, magrolimab, the FDA clamped a partial clinical hold on five of Gilead’s clinical trials combining the therapy with azacitidine. The cause, according to Gilead’s management, is “an apparent imbalance in investigator-reported suspected unexpected serious adverse reactions between study arms.” The company said it has not identified a clear trend in the adverse reactions or new safety signals.
As developers continue their race in the anti-CD47 space, Gilead Sciences Inc. remains high profile with magrolimab, which has reached phase III development for myelodysplastic syndromes. Meanwhile, Alx Oncology Inc., of Burlingame, Calif., is emerging with potentially the first drug targeting the CD47-SIRPa axis to treat solid tumors as well as hematologic malignancies.
Gilead Sciences Inc. will acquire Forty Seven Inc. for $4.9 billion, or $95.50 per share in cash, bringing Gilead magrolimab, an anti-CD47 monoclonal antibody being developed to treat several cancers, including myelodysplastic syndrome (MDS), acute myeloid leukemia (AML) and diffuse large B-cell lymphoma (DLBCL).
ORLANDO, Fla. – Two preclinical presentations at the 61st American Society of Hematology (ASH) annual meeting could pave the way for using hematopoietic stem cell transplants (HSCT) in patients who are currently too sick to tolerate the procedure, as well as in indications where its toxicities preclude its use.
ORLANDO, Fla. – Two preclinical presentations at the 61st American Society of Hematology (ASH) annual meeting could pave the way for using hematopoietic stem cell transplants (HSCT) in patients who are currently too sick to tolerate the procedure, as well as in indications where its toxicities preclude its use.
ORLANDO, Fla. – Data from two studies from Forty Seven Inc. announced at the American Society of Hematology (ASH) annual meeting moved the market in a major way Monday as the company stock (NASDAQ:FTSV) soared 111% to close at $30.43, up $15.99.
