ArticleClinical genitourinary cancer2025
Activity of Platinum Chemotherapy in Men With Prostate Cancer With and Without DNA Damage Repair Mutations.
Article in Clinical genitourinary cancer, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- Prostate cancer germline variants with therapeutic implications.Trends in molecular medicine · 2026Review
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16 authors.
Funding
Abstract
introductionAlterations in homologous recombination repair (HRR) genes occur in 20%-30% of men with metastatic castration-resistant prostate cancer (mCRPC) which may increase sensitivity to platinum chemotherapy. Specifically, exceptional responses to platinum chemotherapy have been reported among patients with BRCA mutations. This study aimed to evaluate the efficacy of platinum chemotherapy in patients with mCRPC with and without HRR. PATIENT AND
methodsIn this retrospective, multi-institution series, we analyzed patients with mCRPC to assess response to platinum-containing chemotherapy based on HRR alteration status. Outcome measures were prostate specific antigen (PSA)50 response rate (percentage of patients achieving at least a 50% decline in PSA from baseline), overall survival (OS) and progression-free survival (PFS).
resultsFrom 1999 to 2020, 24 patients with mCRPC who received platinum chemotherapy were included with 7 patients analyzable for PSA outcomes. HRR alterations were found in 19 out of 24 patients (79.2%) with mutations recognized in 11 different HRR genes. Patients with a HRR alteration achieved a PSA50 response rate of 20% (1 out of 5) after platinum chemotherapy compared to 50% (1 out of 2) in patients without a HRR mutation. No difference in OS or PSA PFS was detected among patients with BRCA1/2 mutations compared to HRR alterations other than BRCA1/2 and patients without HRR alterations.
conclusionIn patients with mCRPC, we did not find a statistical difference in anti-tumor activity after receiving platinum chemotherapy among patients harboring a pathogenic HRR alterations compared to patients without a HRR alteration. Additionally, we were unable to detect an association between BRCA1/2 mutation status and response to platinum chemotherapy. Platinum chemotherapy, however, had clinically meaningful activity in a subset of patients regardless of HRR alteration status. Additional studies are warranted using genomic data to predict sensitivity to platinum chemotherapy.
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