Update in the use and evaluation of poly (ADP-ribose) polymerase inhibitors in epithelial ovarian cancer: current and pending clinical research.

PURPOSE OF REVIEW: This review will provide an update of recently presented clinical data as well as discuss ongoing trials focused on the incorporation of poly (ADP-ribose) polymerase inhibitors (PARPi) into the treatment paradigm for ovarian cancer.

RECENT FINDINGS: As of this publication, PARPi have indications in many parts of the globe as maintenance therapy following response to platinum-based chemotherapy in the setting of platinum-sensitive recurrence. In addition, in the United States, two PARPi have indications as monotherapy treatment for recurrent ovarian cancer in patients with a BRCA mutation and at least two prior lines of therapy. Exciting data was published in October 2018, demonstrating an unprecedented benefit to utilization of olaparib following response to front-line platinum-based chemotherapy among patients with a BRCA mutation and this data is expected to expand the indication for olaparib globally.

SUMMARY: Ongoing studies will seek to expand the benefit of PARPi beyond the BRCA population in front-line therapy as well as to overcome inherent and acquired resistance to PARPi with studies of novel combinations with antiangiogenesis agents, immune-oncology agents and chemotherapy. These efforts may identify more settings and populations in which PARPi provide clinical benefit.