Timothy A. Yap, MBBS, PhD, on Advanced Solid Tumors With DNA Damage Response Defects: Early Data on Elimusertib
AACR Annual Meeting 2022
Timothy A. Yap, MBBS, PhD, of The University of Texas MD Anderson Cancer Center, discusses results from a phase Ib expansion trial of the safety and efficacy of the oral ataxia telangiectasia and Rad3-related (ATR) inhibitor elimusertib in advanced solid tumors with DNA damage response defects. Elimusertib is a selective inhibitor of ATR, a key regulator of responses to DNA damage and replication stress, with antitumor activity in preclinical models of various solid tumors and lymphoma (Abstract CT006).
The ASCO Post Staff
Silvia C. Formenti, MD, of Weill Cornell Medicine, discusses research on the best way to integrate radiotherapy with immune modifiers, which might require changes in standard radiation oncology practices. Variables such as the type of treatment fields, the inclusion of draining nodal stations, the degree of exposure of circulating immune cells, the type of dose fractionation, and the timing of radiotherapy during immune checkpoint blockade all can affect the success of immunoradiotherapy combinations (Abstract SY43).
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).
The ASCO Post Staff
Lillian L. Siu, MD, of Canada’s Princess Margaret Cancer Centre, discusses biomarker-driven precision cancer medicine, the optimal sequencing of immunotherapy (IO) with standard treatments in curative settings, IO targets beyond PD-1/PD-L1 and combinatorial strategies, and next-generation adoptive cell therapies (Abstract PL06).
The ASCO Post Staff
Timothy A. Yap, MBBS, PhD, of The University of Texas MD Anderson Cancer Center, discusses how research is building on the success of first-generation PARP inhibitors in the clinic and the potential of novel potent PARP1-selective inhibitors, which may lead to improved patient outcomes. Given recent advances in drug discovery, says Dr. Yap, we now can go beyond PARP by drugging other key DNA damage response targets in the clinic, including ATR, WEE1, DNA-PK, RAD51, POLQ, and USP1.
The ASCO Post Staff
Yaqi Zhao, MSc, of St. Jude Children’s Research Hospital, discusses findings from the phase III INO-VATE trial, which showed that inotuzumab ozogamicin reduced the signs and symptoms of acute lymphoblastic leukemia associated with a variety of gene and chromosome changes. Future studies may confirm which patients are more likely to benefit from this agent (Abstract CT027).
