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.

IJU Case Reports
|March 5, 2024
PubMed
Abstract

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.