Roni Shouval, MD, PhD, on TP53-Mutant Large B-Cell Lymphoma and CAR T-Cell Therapy
2021 ASH Annual Meeting & Exposition
Roni Shouval, MD, PhD, of Memorial Sloan Kettering Cancer Center, discusses his findings, which show, for the first time, that TP53 alterations are a valuable prognostic and potentially predictive marker in patients with large B-cell lymphoma who receive CD19–CAR T-cell therapy. Gene-expression profiling suggests that TP53 alterations result in an immunosuppressive tumor microenvironment and impaired apoptosis signaling, which could lead to decreased CAR T-cell therapy efficacy (Abstract 710).
The ASCO Post Staff
Leslie S. Kean, MD, PhD, of Dana-Farber/Boston Children's Cancer and Blood Disorders Center, discusses findings from her analysis of the International Blood and Marrow Transplant Research Database, which led to the recent FDA approval of abatacept for the prevention of acute graft-vs-host disease (GVHD) in adult and pediatric patients. The data suggest improved overall survival with the immunosuppressant abatacept in combination with a calcineurin inhibitor and methotrexate following 7/8 HLA–matched unrelated allogeneic hematopoietic stem cell transplantation (Abstract 3912).
The ASCO Post Staff
Alba Rodriguez-Meira, DPhil, of the University of Oxford, discusses a comprehensive analysis of the genetic, cellular, and molecular landscape of TP53-mediated transformation, providing insights into the evolution of chronic hematologic malignancies toward an aggressive acute leukemia. Because TP53 is the most commonly mutated gene in human cancer, these findings may well be of broad relevance (Abstract 3).
The ASCO Post Staff
Tycel Phillips, MD, of the Rogel Cancer Center, University of Michigan, discusses phase II findings from the CITADEL-204 study of parsaclisib, a next-generation inhibitor of phosphatidylinositol 3-kinase. The agent, used as a monotherapy, appeared to benefit patients with relapsed or refractory marginal zone lymphoma who had a rapid and durable clinical response (Abstract 44).
The ASCO Post Staff
Eunice S. Wang, MD, of Roswell Park Comprehensive Cancer Center, discusses phase III results showing that gilteritinib and azacitidine led to significantly higher composite complete response rates in patients with newly diagnosed FLT3-mutant acute myeloid leukemia who are ineligible for intensive induction chemotherapy. Overall survival was similar to that of azacitidine alone (Abstract 700).
The ASCO Post Staff
Manali Kamdar, MD, of the University of Colorado Cancer Center, discusses phase III results from the TRANSFORM study, which suggest that lisocabtagene maraleucel, a CD19-directed CAR T-cell therapy, improved outcomes with a favorable safety profile and may be a potential new standard of care for second-line treatment of patients with relapsed or refractory large B-cell lymphoma (Abstract 91).
