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Background: The open-label, single-arm, multicenter ORZORA trial (NCT02476968) evaluated the efficacy and safety of maintenance olaparib in patients with platinum-sensitive relapsed ovarian cancer (PSR OC) who had tumor BRCA mutations (BRCAm) of germline (g) or somatic (s) origin or non-BRCA homologous recombination repair mutations (HRRm) and were in response to their most recent platinum-based chemotherapy after ≥2 lines of treatment.
Methods: Patients received maintenance olaparib capsules (400 mg twice daily) until disease progression. Prospective central testing at screening determined tumor BRCAm status and subsequent testing determined gBRCAm or sBRCAm status. Patients with predefined non-BRCA HRRm were assigned to an exploratory cohort. The co-primary endpoints were investigator-assessed progression-free survival (PFS; modified Response Evaluation Criteria in Solid Tumors v1.1) in BRCAm and sBRCAm cohorts. Secondary endpoints included health-related quality of life (HRQoL) and tolerability.
Results: 177 patients received olaparib. At the primary data cut-off (17 April 2020), the median follow-up for PFS in the BRCAm cohort was 22.3 months. The median PFS (95% CI) in BRCAm, sBRCAm, gBRCAm and non-BRCA HRRm cohorts was 18.0 (14.3-22.1), 16.6 (12.4-22.2), 19.3 (14.3-27.6) and 16.4 (10.9-19.3) months, respectively. Most patients with BRCAm reported improvements (21.8%) or no change (68.7%) in HRQoL and the safety profile was as expected.
Conclusions: Maintenance olaparib had similar clinical activity in PSR OC patients with sBRCAm and those with any BRCAm. Activity was also observed in patients with a non-BRCA HRRm. ORZORA further supports use of maintenance olaparib in all patients with BRCA-mutated, including sBRCA-mutated, PSR OC.
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http://dx.doi.org/10.1016/j.ygyno.2023.03.019 | DOI Listing |
Trials
September 2025
Independent Laboratory of Translational Medicine, Chair of Medical Genetics, Medical University of Lublin, Lublin, Poland.
The management of advanced ovarian cancer has significantly developed with the integration of bevacizumab into standard therapeutic regimens. While the efficacy of bevacizumab has been established in trials such as GOG218, ICON7, and PAOLA-1, there remains a gap in understanding the advantages of the 7.5 mg/kg dose over the 15 mg/kg regimen.
View Article and Find Full Text PDFCase Rep Oncol Med
August 2025
Division of Hematology, Oncology and Palliative Care, Virginia Commonwealth University Massey Comprehensive Cancer Center, Richmond, Virginia, USA.
Deficiency in genes leads to impediment in DNA repair and is associated with an increased lifetime risk of breast, ovarian, prostate, and pancreatic cancer and melanoma. Lynch syndrome is caused by inherited mutations in genes responsible for DNA mismatch repair, with resultant increase in lifetime risk of colorectal, endometrial, ovarian, stomach, urinary, pancreatic, and CNS malignancies. Here, we present a patient with a rare coexistence of both and mutation in the setting of metastatic pancreatic and prostate cancer.
View Article and Find Full Text PDFJ Gynecol Oncol
August 2025
Department of Obstetrics and Gynecology, Kyorin University Faculty of Medicine, Tokyo, Japan.
Objective: This study explored new insights into the selection criteria for maintenance therapy for platinum-sensitive recurrent ovarian cancer by comparing the efficacy of poly(ADP-ribose) polymerase inhibitors (PARPis) and bevacizumab in patients with a history of PARPi administration.
Methods: Between April 2014 and December 2024, 81 patients underwent maintenance therapy with either PARPi (52 patients) or bevacizumab (29 patients) at our institution. The primary endpoint was progression-free survival (PFS) after the end of the last chemotherapy treatment.
Nat Commun
August 2025
Service de Cancérologie, Université de Paris Cité, AP-HP, Cochin Port-Royal, Paris, France.
Single-agent maintenance poly(ADP-ribose) polymerase (PARP) inhibition may represent an effective strategy in patients with advanced/metastatic endometrial cancer responding to platinum-based chemotherapy, including for molecular subtypes with suboptimal options. To explore this approach, we initiated the randomized phase IIb UTOLA trial (NCT03745950). Female patients without progression following front-line platinum-based chemotherapy for advanced/metastatic endometrial cancer were randomized 2:1 to twice-daily maintenance oral olaparib 300 mg or placebo until progression or intolerance, stratified by p53 status, mismatch repair status, and response to initial chemotherapy.
View Article and Find Full Text PDFCrit Rev Oncol Hematol
August 2025
Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan; Immunology Research Center, Chung Shan Medical University, Taichung 402, Taiwan; Department of Clinical Laboratory, Chung Shan Medical University Hospital, Taichung 402, Taiwan. Electronic address:
Background: Poly (ADP-ribose) polymerase inhibitors (PARPi) have become a key treatment for ovarian cancer, particularly in patients with BRCA mutations or homologous recombination deficiency (HRD).
Methods: This umbrella review synthesizes findings from 35 systematic reviews and meta-analyses of randomized controlled trials to assess the efficacy and safety of PARPi in ovarian cancer.
Results: Across studies, PARPi significantly improved progression-free survival, with the most pronounced benefit in BRCA-mutated and HRD-positive populations.