PARP enzymes are essential for DNA damage repair. Cancers with defective homologous recombination DNA repair, such has BRCA1- and BRCA2-mutated breast cancers, are targets for PARP inhibitors (PARPi) through the exploitation of synthetic lethality. A number of PARPi are currently undergoing clinical evaluation in breast cancer, with olaparib and talazoparib having demonstrated superior efficacy compared with standard chemotherapy in advanced germline BRCA-mutated cancer. This review describes the biological rationale for PARPi and presents the accumulating data on PARPi use in breast cancer.
Tomas G. Lyons and Mark E. Robson
Mary B. Daly, Robert Pilarski, Jennifer E. Axilbund, Michael Berry, Saundra S. Buys, Beth Crawford, Meagan Farmer, Susan Friedman, Judy E. Garber, Seema Khan, Catherine Klein, Wendy Kohlmann, Allison Kurian, Jennifer K. Litton, Lisa Madlensky, P. Kelly Marcom, Sofia D. Merajver, Kenneth Offit, Tuya Pal, Huma Rana, Gwen Reiser, Mark E. Robson, Kristen Mahoney Shannon, Elizabeth Swisher, Nicoleta C. Voian, Jeffrey N. Weitzel, Alison Whelan, Myra J. Wick, Georgia L. Wiesner, Mary Dwyer, Rashmi Kumar and Susan Darlow
The NCCN Guidelines for Genetic/Familial High-Risk Assessment: Breast and Ovarian provide recommendations for genetic testing and counseling and risk assessment and management for hereditary cancer syndromes. Guidelines focus on syndromes associated with an increased risk of breast and/or ovarian cancer and are intended to assist with clinical and shared decision-making. These NCCN Guidelines Insights summarize major discussion points of the 2015 NCCN Genetic/Familial High-Risk Assessment: Breast and Ovarian panel meeting. Major discussion topics this year included multigene testing, risk management recommendations for less common genetic mutations, and salpingectomy for ovarian cancer risk reduction. The panel also discussed revisions to genetic testing criteria that take into account ovarian cancer histology and personal history of pancreatic cancer.