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Updated: Jul 28, 2026

A Bioluminescent and Fluorescent Orthotopic Syngeneic Murine Model of Androgen-dependent and Castration-resistant Prostate Cancer
Published on: March 6, 2018
Genomic Predictors of Response to Metastasis-directed Therapy With or Without Androgen Deprivation Therapy
Philip Sutera1, Kim Van der Eecken2, Yang Song3
1Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Abstract:
Metastasis-directed therapy (MDT) is an emerging treatment option for metachronous oligometastatic castration-sensitive prostate cancer (omCSPC) and can delay time to progression and the need to initiate androgen deprivation therapy (ADT). However, optimal ways to synergize MDT and ADT are not known, and better personalization of MDT is needed. We examined the role of combined ADT and MDT and the ability of genomic alterations to provide prognostic and predictive information regarding response to MDT. We found that high-risk (HiRi) mutations in TP53, BRCA1/2, ATM, and Rb1 are poor prognostic markers in omCSPC. In addition, patients harboring HiRi mutations experienced greater benefit from addition of ADT to MDT, indicating that these alterations are predictive biomarkers for treatment intensification. Our results suggest that genetic biomarkers might aid in treatment personalization for patients with omCSPC.
Insights
Metastasis-directed therapy (MDT) combined with androgen deprivation therapy (ADT) may benefit prostate cancer patients with high-risk mutations. These genetic markers can guide personalized treatment decisions for metachronous oligometastatic castration-sensitive prostate cancer.
Area of Science:
- Oncology
- Genetics
- Urology
Background:
- Metastasis-directed therapy (MDT) shows promise for metachronous oligometastatic castration-sensitive prostate cancer (omCSPC).
- Optimal combination strategies for MDT and androgen deprivation therapy (ADT) remain unclear.
- Personalization of MDT for omCSPC requires further investigation.
Purpose of the Study:
- To evaluate the efficacy of combined ADT and MDT in omCSPC.
- To identify genomic alterations that predict response to MDT.
- To explore the prognostic and predictive value of genetic biomarkers in omCSPC.
Main Methods:
- Analysis of patients with omCSPC treated with combined ADT and MDT.
- Genomic profiling to identify high-risk (HiRi) mutations (TP53, BRCA1/2, ATM, Rb1).
- Correlation of mutation status with treatment response and progression-free survival.
Main Results:
- HiRi mutations in TP53, BRCA1/2, ATM, and Rb1 are associated with poor prognosis in omCSPC.
- Patients with HiRi mutations demonstrated a greater benefit from the addition of ADT to MDT.
- These genetic alterations serve as predictive biomarkers for intensified treatment.
Conclusions:
- Genomic biomarkers can aid in personalizing MDT for omCSPC.
- HiRi mutations identify patients who may benefit from combined ADT and MDT.
- This approach may help optimize treatment strategies for omCSPC.
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