The dark cloud of what the U.S. FDA called potential “systemic bias” rained on Amgen Inc.’s bid for full approval of Lumakras (sotorasib), a KRAS-G12C inhibitor that was granted accelerated approval in May 2021 for locally advanced or metastatic non-small-cell lung cancer after at least one systemic therapy.
KRAS-mutated tumors were once untreatable. In fact, KRAS was something of a poster child for so-called undruggability. Several laboratories are investigating strategies to address other mutations and uses beyond non-small cell lung cancer (NSCLC) and colorectal cancer. If you can't bind KRAS to block it, use a glue or combine multiple weapons. This is the idea behind two new approaches that target cancers caused by this proto-oncogene.
KRAS-mutated tumors were once untreatable. In fact, KRAS was something of a poster child for so-called undruggability. Several laboratories are investigating strategies to address other mutations and uses beyond non-small cell lung cancer (NSCLC) and colorectal cancer. If you can't bind KRAS to block it, use a glue or combine multiple weapons. This is the idea behind two new approaches that target cancers caused by this proto-oncogene.
Back-to-back papers in the June 22, 2023, issue of Nature have identified separate molecular mechanisms underlying sex-specific cancer outcomes. Researchers from The University of Texas MD Anderson Cancer Center showed that increased expression of the epigenetic enzyme KDM5D, which is located on the Y chromosome, contributed to cancer progression in KRAS-mutated tumors. In the same issue of Nature, a team from Cedars-Sinai reported new insights into the consequences of losing the entire Y chromosome.
Medigene AG has announced its pipeline expansion into neoantigens with KRAS as the first target in its MDG-10xx program, a T-cell receptor engineered T cell (TCR-T) therapy being developed in combination with the company's PD1-41BB switch receptor technology.
With age, senescent cells become detrimental to tissues. Mayo Clinic scientists have observed this phenomenon in the lung alveoli, where senescent macrophages accumulated in aging tissue and in early stages of non-small-cell lung cancer (NSCLC) driven by the Kras oncogene. “We found that the macrophages were present in the earliest stages of the disease. Strategies targeting these cells for elimination or preventing their accumulation would be worthwhile to test in other conditions (assuming we find they occur),” Darren Baker, a Mayo Clinic senescent cell biologist and senior author of the study, told BioWorld.
Researchers from Regor Therapeutics Inc. presented data from the company’s discovery campaign of Son of sevenless homolog 1 (SOS1) inhibitors, which show potential for the treatment of mutated KRAS-positive cancers, such as pancreatic cancers (PAC) and non-small-cell lung cancer (NSCLC). SOS1 is an upstream activator of KRAS. Therefore, SOS1 blockage has great potential as an approach for pan mutant KRAS suppression.
Two companies who needed partners have found each other, as privately held Elicio Therapeutics Inc. will merge with Angion Biomedica Corp. in an all-stock deal.
Anocca AB raised €25 million (US$26.5 million) in venture debt financing from the European Investment Bank to maintain its progress toward the clinic. “We’re quickly moving towards regulatory filings next year,” CEO and co-founder Reagan Jarvis told BioWorld. The company aims to start its first clinical trial in 2024.
As largely expected, Mirati Therapeutics Inc.’s adagrasib gained U.S. FDA accelerated approval ahead of its Dec. 14 PDUFA date, cleared for second-line use in patients with non-small-cell lung cancer (NSCLC) harboring the KRAS G12C mutation, in which it will go up ahead Amgen Inc.’s Lumakras (sotorasib), which has the advantage of a year and a half head start.
