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.
What was once effective is now a non-starter. Newly updated guidelines from the World Health Organization (WHO) caution against using the COVID-19 treatments sotrovimab, from GSK plc and Vir Biotechnology Inc., and Regen-Cov (casirivimab + imdevimab), from Regeneron Pharmaceuticals Inc. Omicron, the group said, has rendered the monoclonal antibodies ineffective.
Regeneron Pharmaceuticals Inc.’s Inmazeb and Ridgeback Biotherapeutics LP’s Ebanga earned a ringing endorsement from the World Health Organization (WHO) in its first ever guideline on Ebola therapies. In releasing the guideline Aug. 19, WHO officials celebrated the fact that Ebola is no longer “a near certain killer” – provided treatment starts as soon as possible following diagnosis.
With the pandemic lingering across the world and more COVID-19 therapies becoming available and in demand, the opportunity for counterfeits is growing.
With the pandemic lingering across the world and more COVID-19 therapies becoming available and in demand, the opportunity for counterfeits is growing.
As part of its ongoing effort to speed drug pricing competition in the U.S. through the development of generics, the FDA is releasing another batch of draft and revised draft product-specific guidances on the design of bioequivalence studies to support abbreviated new drug applications. Among the 30 new draft guidances is one specific to remdesivir, which was approved in October 2020 as a COVID-19 treatment.
Once again, the U.S. FDA giveth and it taketh away. Just a few days after expanding its approval for Gilead Sciences Inc.’s Veklury (remdesivir) to provide access to more people infected with COVID-19, the FDA essentially shut down the use of two monoclonal antibody (mAb) treatments Jan. 24 that had been authorized to treat mild-to-moderate COVID-19 infections – Regeneron Inc.’s Regen-Cov (Ronapreve in Europe), an antibody cocktail of casirivimab and imdevimab, and Eli Lilly and Co.’s bamlanivimab and etesevimab that are administered together.
Should the U.S. government be in the business of manufacturing COVID-19 vaccines? Several prominent Democratic senators and representatives would say yes.
Autumn's arrival in the Northern Hemisphere on Sept. 22 swept in significant news of progress for the global fight against COVID-19. A protein-based COVID-19 vaccine candidate from Clover Biopharmaceuticals Ltd. and Dynavax Technologies Corp. appeared wholly effective in preventing severe disease and hospitalization, sending Dynavax shares (NASDAQ:DVAX) climbing 26.5% to close at $18.79 on Sept. 22. In another study of Gilead Sciences Inc.'s Veklury (remdesivir), the drug significantly reduced hospitalization in high-risk patients with COVID-19. Meanwhile, governments and companies continued to expand efforts to supply new vaccines and therapeutics against the disease even as efforts continued far and wide to evaluate the efficacy of new and emerging candidates in both categories.
Investigators at the University of California at San Francisco have identified a confounder that appears to be behind the purported anti-SARS-CoV-2 effects of a number of therapeutic candidates that were identified via repurposing.
