Adagrasib with ICI improved long-term survival and blocked CNS progression in dual extra- and intracranial BM models. These findings support investigation of adagrasib with ICI in patients with KRASG12C-mutant BM.
To investigate this, we developed a preclinical model that mimics the development of resistance to KRAS-G12C inhibitors (G12Ci), such as adagrasib and RMC-4998...Mechanistically, these combination therapies led to profound remodeling of the tumor immune microenvironment, making it less immunosuppressive, and promoted cancer cell death that primed an immune response, with an influx of cytotoxic T lymphocytes recognizing tumor associated antigens shared between G12Ci resistant and sensitive cancer cells. Promotion of immune-mediated bystander elimination of drug-resistant cells may provide a paradigm for tackling the problem of drug resistance in cancer more broadly.
[18F]KRAS490 showed specific, blockable tumor uptake and favorable pharmacokinetics, making it a promising tracer for noninvasive imaging of KRAS-G12C mutant tumors. Its ability to penetrate the CNS supports potential application in imaging both peripheral and brain lesions.
A lead mAb (mAb7) sensitized tumors to the US Food and Drug Administration-approved MAPK kinase inhibitor trametinib and the KRASG12C inhibitor adagrasib. Moreover, a murinized antibody (Ms-mAb7) improved antitumor immunity in a KrasG12D syngeneic tumor model by enhancing infiltration and activation of cytotoxic immune cells. These findings provide an important advance in the clinical development of PCDH7-targeting antibodies for lung cancer treatment.
8 days ago
Journal
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KRAS (KRAS proto-oncogene GTPase) • CDH23 (Cadherin Related 23)
Sotorasib was associated with significantly improved OS, TTNTD, and TTDD compared with docetaxel in 2 L+ for locally advanced or metastatic NSCLC under real-world conditions in England.
The labeled 960 mg dose did not demonstrate meaningful improvement in efficacy, while toxicity remained substantial. These findings support efforts under Project Optimus to identify the lowest effective dose. Lower doses, including 240 mg, may provide comparable outcomes while reducing toxicity, pill burden, and treatment costs.