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PARP inhibitors in ovarian cancer: An overview of the practice-changing trials
Tiffany Foo1,2, Angela George1,2, Susana Banerjee1,3
1Gynaecology Unit, The Royal Marsden NHS Foundation Trust, London, UK.
Abstract:
Poly (ADP-ribose) polymerase (PARP) inhibitors have transformed the management of recurrent ovarian cancer in patients with BRCA-mutations and beyond. Olaparib was the first PARP inhibitor to gain approval as maintenance therapy for patients with newly diagnosed, advanced BRCA-mutated ovarian cancer establishing a new standard of care. At the end of 2020, as a result of the SOLO1, PRIMA, and PAOLA-1 phase III trials, we are now in an era where three maintenance PARP inhibitor strategies have FDA and European Medicines Agency approval in the first-line setting. In this review, we provide an overview of the key PARP inhibitor trials that have changed clinical practice, discuss directing therapy according to biomarker status (BRCA and homologous recombination deficiency) and future strategies in ovarian cancer and other gynecological malignancies.
Insights
Poly (ADP-ribose) polymerase (PARP) inhibitors are now standard first-line maintenance therapy for advanced ovarian cancer, especially in patients with BRCA mutations. This review covers key trials, biomarker use, and future directions for PARP inhibitors in gynecological cancers.
Area of Science:
- Oncology
- Genetics
- Pharmacology
Background:
- Poly (ADP-ribose) polymerase (PARP) inhibitors have revolutionized ovarian cancer treatment.
- Olaparib established a new standard of care as maintenance therapy for BRCA-mutated ovarian cancer.
- Three PARP inhibitor strategies are now approved for first-line maintenance therapy.
Purpose of the Study:
- To review pivotal PARP inhibitor trials in ovarian cancer.
- To discuss biomarker-directed therapy using BRCA and homologous recombination deficiency (HRD) status.
- To explore future applications of PARP inhibitors in gynecological malignancies.
Main Methods:
- Review of phase III clinical trials (SOLO1, PRIMA, PAOLA-1).
- Analysis of biomarker status (BRCA mutations, HRD).
- Discussion of clinical practice changes and future strategies.
Main Results:
- PARP inhibitors have significantly improved outcomes in ovarian cancer management.
- First-line maintenance therapy with PARP inhibitors is now an established standard of care.
- Biomarker status is crucial for directing PARP inhibitor therapy.
Conclusions:
- PARP inhibitors represent a major advancement in ovarian cancer treatment.
- The use of PARP inhibitors is expanding to other gynecological cancers.
- Personalized therapy based on biomarkers is key for optimizing treatment outcomes.
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