Related Experiment Video
Updated: Jul 1, 2025

Silencing of BRCA2 to Identify Novel BRCA2-regulated Biological Functions in Cultured Human Cells
Published on: August 12, 2015
Treatment-related neuroendocrine prostate cancer with BRCA2 germline mutation treated with olaparib
Riko Ikeda1, Yoh Matsuoka1, Masaharu Inoue1
1Department of Urology Saitama Cancer Center Saitama Japan.
Introduction:
The efficacy of olaparib for treatment-related neuroendocrine prostate cancer is unknown. Here, we report a case of treatment-related neuroendocrine prostate cancer with a BRCA2 mutation that was treated with olaparib with 1-year efficacy.
Case Presentation:
A 75-year-old man initially diagnosed with prostate adenocarcinoma developed treatment-related neuroendocrine prostate cancer after 10-year androgen deprivation therapy. Despite the initial temporary effects of etoposide and carboplatin, the patient experienced prostate bed tumor recurrence 1 year after chemotherapy cessation. FoundationOne® detected a BRCA2 gene mutation, and olaparib was initiated after repeating one chemotherapy course using the same chemotherapeutic agents. The patient received olaparib with sustained tumor regression for 1 year without severe side effects.
Conclusion:
Olaparib may be the treatment of choice for treatment-related neuroendocrine prostate cancer in patients with BRCA mutations.
Insights
Olaparib shows 1-year efficacy in a patient with treatment-related neuroendocrine prostate cancer and a BRCA2 mutation. This PARP inhibitor offers a potential treatment option for this rare cancer subtype.
Area of Science:
- Oncology
- Genetics
- Prostate Cancer Research
Background:
- Neuroendocrine prostate cancer (NEPC) is a rare and aggressive subtype.
- Treatment-related NEPC can arise after androgen deprivation therapy for prostate adenocarcinoma.
- The efficacy of targeted therapies in treatment-related NEPC remains largely uncharacterized.
Observation:
- A 75-year-old male developed treatment-related NEPC after 10 years of androgen deprivation therapy.
- Initial chemotherapy (etoposide and carboplatin) provided temporary response, followed by recurrence.
- Genetic testing revealed a BRCA2 mutation.
Findings:
- Olaparib, a PARP inhibitor, was administered after a repeat chemotherapy course.
- The patient experienced sustained tumor regression for one year on olaparib.
- No severe side effects were observed during olaparib treatment.
Implications:
- Olaparib demonstrates potential as a treatment of choice for treatment-related NEPC in patients with BRCA mutations.
- This case highlights the importance of genetic profiling in guiding therapy for advanced prostate cancer.
- Further investigation into PARP inhibitors for NEPC is warranted.
Related Concept Videos
Targeted Cancer Therapies
There are several types of targeted therapies against...
Combination Therapies and Personalized Medicine
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...

