Matthew L. Meyerson, MD, PhD, on Lung Adenocarcinoma: Somatic Mutations, Germline Risk, and Ancestry
AACR Annual Meeting 2022
Matthew L. Meyerson, MD, PhD, of the Dana-Farber Cancer Institute, discusses study findings that suggest the variation in frequency of EGFR and KRAS mutations in lung cancer may be associated with genetic ancestry in patients from Latin America. The results indicate it may be possible to identify germline alleles underpinning this link. Finding a germline locus or loci may impact the development of lung cancers with these mutations and may improve lung cancer prevention and screening for populations of Latin American origin, as well as others.
The ASCO Post Staff
Klaus Pantel, MD, of the University Medical Center Hamburg-Eppendorf, discusses liquid biopsy technologies and biomarkers, with a focus on circulating tumor cells and circulating tumor DNA; clinical applications such as early detection of cancer, improved staging, and surveillance of measurable residual disease; and how best to detect and monitor response to systemic therapies, as well as ways to identify therapeutic targets and resistance mechanisms (Abstract SY08).
The ASCO Post Staff
John B.A.G. Haanen, MD, PhD, of the Netherlands Cancer Institute, discusses findings from a phase I study designed to test the safety and efficacy of the CARVac (CAR-T cell-amplifying RNA vaccine) strategy to overcome poor CAR T-cell stimulation and responses in patients with CLDN6-positive advanced solid tumors. Men with testicular cancer in particular showed encouraging responses. Overall, some patients showed long-term CAR T-cell persistence more than 150 days post infusion. Partial responses seemed to deepen further over time (Abstract CT002).
The ASCO Post Staff
Gautam Mehta, MD, of the U.S. Food and Drug Administration, discusses how accelerated approval of potentially life-saving cancer therapies has been applied in precision oncology. Although “fast-tracking” drugs presents opportunities and challenges, one possible measure of the program’s success is the fact that, to date, no solid tumor accelerated-approval indications have been withdrawn (Abstract DC06).
The ASCO Post Staff
Alana L. Welm, PhD, of the University of Utah Huntsman Cancer Institute, discusses her findings of a new pathway that regulates the antitumor immune response during metastatic outgrowth. Interfering with a particular isoform of RON kinase may cause metastatic tumors to be swarmed by T cells and killed, suggesting that new approaches to targeting this kinase may be achievable in the near future (Abstract SY32).
The ASCO Post Staff
Ari M. VanderWalde, MD, MPH, MBioeth, of The West Clinic, discusses results from the S1616 trial involving patients with metastatic or unresectable melanoma who had primary resistance to PD-1 or PD-L1 inhibitors. Compared with ipilimumab alone, the combination of ipilimumab plus nivolumab benefited some patients: those with tumors that responded to therapy showed an increased amount of CD8+ cells. Because there is no standard treatment for metastatic melanoma after failure of PD-1 inhibitors in BRAF wild-type disease, this research may provide a viable option in the future (Abstract CT013).
