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Updated: Nov 11, 2025

A Bioluminescent and Fluorescent Orthotopic Syngeneic Murine Model of Androgen-dependent and Castration-resistant Prostate Cancer
Published on: March 6, 2018
Olaparib for the treatment of metastatic prostate cancer
Corinne Maurice Dror1, Alexander W Wyatt2,3, Kim N Chi1,2
1BC Cancer, Vancouver, Vancouver, BC, V5Z 4S6, Canada.
Abstract:
Recent innovations in the treatment of metastatic prostate cancer have improved patient outcomes. Nonetheless, this disease remains fatal and additional treatment approaches are needed. Greater understanding of the molecular landscape of metastatic prostate cancer has revealed recurrent alterations in key pathways amenable to therapeutic targeting. One such pathway is DNA repair, particularly alterations in genes directly or indirectly associated with homologous recombination repair found in up to one-quarter of patients with metastatic castrate-resistant prostate cancer (mCRPC). Olaparib, an inhibitor of poly-ADP-ribose polymerase, has recently gained approval for the treatment of mCRPC harboring alterations in homologous recombination repair genes. This review will provide a summary of evidence regarding PARP inhibition in the treatment of mCRPC, with a specific focus on olaparib.
Insights
New treatments for metastatic prostate cancer show promise, but more options are needed. DNA repair gene alterations are common in metastatic castrate-resistant prostate cancer (mCRPC), making PARP inhibitors like olaparib a key therapeutic strategy.
Area of Science:
- Oncology
- Genetics
- Pharmacology
Background:
- Metastatic prostate cancer remains a significant cause of cancer mortality.
- Advances in understanding molecular pathways have identified new therapeutic targets.
- Homologous recombination repair (HRR) gene alterations are found in approximately 25% of metastatic castrate-resistant prostate cancer (mCRPC) cases.
Purpose of the Study:
- To review the current evidence for poly-ADP-ribose polymerase (PARP) inhibition in mCRPC treatment.
- To focus specifically on the efficacy and application of olaparib in mCRPC.
Main Methods:
- Literature review of clinical trials and studies on PARP inhibitors in mCRPC.
- Analysis of data concerning olaparib's effectiveness in patients with HRR gene alterations.
Main Results:
- PARP inhibition, particularly with olaparib, has demonstrated clinical benefit in mCRPC patients with HRR gene alterations.
- Olaparib is approved for treating mCRPC harboring specific DNA repair gene mutations.
Conclusions:
- Targeting DNA repair pathways with PARP inhibitors represents a significant advancement in mCRPC therapy.
- Olaparib is an effective treatment option for a subset of mCRPC patients with homologous recombination repair deficiencies.
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