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- Title
Docetaxel followed by abiraterone in metastatic castration-resistant prostate cancer: efficacy and predictive parameters in a large single center cohort.
- Authors
Höfner, Thomas; Vallet, Sonia; Hadaschik, Boris; Pahernik, Sascha; Duensing, Stefan; Hohenfellner, Markus; Jäger, Dirk; Grüllich, Carsten
- Abstract
Purpose: To report the outcome and course of disease in patients with metastatic castration-resistant prostate cancer (mCRPC) treated with first-line docetaxel followed by abiraterone acetate in a single center. Methods: In this retrospective observational study, we reviewed the course of disease of all applicable patients with mCRPC treated with docetaxel followed by abiraterone at our center. We analyzed progression-free survival (PFS) of docetaxel and abiraterone treatments. We further searched for predictive factors for the duration of treatment response. Results: Median PFS between initiation of androgen deprivation therapy and the diagnosis of mCRPC was 32 months. Median PFS on docetaxel treatment was 9 months. Median PFS on abiraterone treatment was 11 months. Patients with higher Gleason scores (GS) (8-10) at initial diagnosis had a significantly longer median PFS on docetaxel as compared to patients with GS 6-7, p = 0.01. We demonstrate a significant correlation between the PFS on docetaxel and PFS on abiraterone in the post-docetaxel setting (Kendall tau r = 0.32, p = 0.019) as well as a significant negative correlation between the PSA nadir under abiraterone treatment and the time to progression under abiraterone (Kendall tau r = −0.43, p = 0.007). Conclusions: High Gleason score appears to be predictive of duration of response to docetaxel. Interestingly, progression-free survival with abiraterone appears to be correlated with the duration of response with docetaxel, whereas PSA decline and low nadir appear to be predictive of response to abiraterone.
- Subjects
PROSTATE cancer treatment; DOCETAXEL; ABIRATERONE acetate; COHORT analysis; PROGRESSION-free survival; GLEASON grading system
- Publication
World Journal of Urology, 2015, Vol 33, Issue 6, p833
- ISSN
0724-4983
- Publication type
Article
- DOI
10.1007/s00345-014-1375-5