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Updated: Dec 29, 2025

A Bioluminescent and Fluorescent Orthotopic Syngeneic Murine Model of Androgen-dependent and Castration-resistant Prostate Cancer
Published on: March 6, 2018
Prognostic factors for patients treated with abiraterone
Cecília M Alvim1, André Mansinho1,2, Rita S Paiva1
1Medical Oncology Department, Hospital de Santa Maria, Centro Hospitalar Universitário Lisboa Norte, Lisbon, 1649-035, Portugal.
Aim:
To evaluate prostate-specific antigen response (PSAr) defined as a ≥50% decrease in PSA concentration from the pretreatment value, as a prognostic factor in patients with metastatic castration-resistant prostate cancer (mCRPC) treated with abiraterone acetate (AA).
Methods:
Retrospective evaluation of patients with mCRPC treated with AA.
Results:
124 patients were identified. Median overall survival and progression-free survival for patients achieving PSAr versus patients without PSAr were 29.3 versus 9.7 months and 17.0 versus 5.2 months, respectively. Multivariate analysis confirmed that PSAr correlated with better overall survival (hazard ratio: 0.19; 95% CI: 0.10-0.38; p < 0.001) and progression-free survival (hazard ratio: 0.24; 95% CI: 0.14-0.41; p < 0.001).
Conclusion:
PSAr can be utilized as prognostic and predictive factors in mCRPC patients treated with AA.
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