Journal article
Adjuvant Radiotherapy in Prostate Cancer Patients Treated with Surgery: The Impact of Age and Tumor Characteristics
European urology focus, Vol.1(2), pp.191-199
09/01/2015
DOI: 10.1016/j.euf.2015.06.008
PMID: 28723433
Abstract
Background: The overall mortality (OM) and cancer-specific mortality (CSM) benefits of adjuvant radiotherapy (aRT) in treating prostate cancer (PCa) patients with adverse pathologic characteristics at radical prostatectomy (RP) are unclear.
Objective: To test the impact of aRT on survival in PCa patients treated with RP according to adverse pathologic characteristics (Gleason score [GS] 8-10; pT3b/4, lymph node invasion [LNI]) and age categories (<70 vs >= 70 yr).
Design, setting, and participants: A total of 7616 patients with pT3/4 pN0/1 PCa treated with RP between 1995 and 2009 within the Surveillance Epidemiology and End Results-Medicare linked database were included.
Outcome measurements and statistical analysis: Cox regression analysis was used to test the relationship between aRT and CSM, as well as OM in the entire cohort. Stratification was performed according to tumor characteristics and age categories.
Results and limitations: In patients with fewer than two adverse pathologic characteristics, aRT did not improve CSM or OM. Conversely, in patients with two or more adverse pathologic characteristics, the 10-yr CSM-free rate was 92% in patients treated with aRT versus 82% in patients treated without aRT (p < 0.001). This survival improvement was confirmed in patients aged <70 yr (p = 0.01) but not in those >= 70 yr (p = 0.1). In multivariable analyses, aRT was an independent predictor of lower CSM risk (hazard ratio: 0.45; p = 0.02) only among patients aged <70 yr with two or more adverse pathologic characteristics. Similar trends were observed when OM was examined as an
end point. Conclusions: Age and tumor characteristics should be considered in the selection of optimal aRT candidates after surgery. Only patients aged < 70 yr with two or more adverse pathologic characteristics (GS 8-10, pT3b/4, LNI) appear to benefit from aRT.
Patient summary: The usefulness of adjuvant radiotherapy after surgery for prostate cancer greatly depends on tumor characteristics and patient age. Only patients with advanced local tumor characteristics aged < 70 yr seem to benefit from this treatment modality. (C) 2015 European Association of Urology. Published by Elsevier B.V. All rights reserved.
Details
- Title: Subtitle
- Adjuvant Radiotherapy in Prostate Cancer Patients Treated with Surgery: The Impact of Age and Tumor Characteristics
- Creators
- Firas Abdollah - Henry Ford HospitalPierre I. Karakiewicz - McGill University Health CentreGiorgio Gandaglia - Vita-Salute San Raffaele UniversityDeepansh Dalela - Henry Ford HospitalDane E. Klett - Henry Ford HospitalJonas Shiffmann - McGill University Health CentreFrancesco Montorsi - Vita-Salute San Raffaele UniversityAlberto Briganti - Vita-Salute San Raffaele UniversityFred Saad - McGill University Health CentreMarkus Graefen - Martini-KlinikJames O. Peabody - Henry Ford HospitalMani Menon - Henry Ford HospitalMaxine Sun - McGill University Health Centre
- Resource Type
- Journal article
- Publication Details
- European urology focus, Vol.1(2), pp.191-199
- DOI
- 10.1016/j.euf.2015.06.008
- PMID
- 28723433
- NLM abbreviation
- Eur Urol Focus
- ISSN
- 2405-4569
- eISSN
- 2405-4569
- Publisher
- Elsevier
- Number of pages
- 9
- Language
- English
- Date published
- 09/01/2015
- Academic Unit
- Urology
- Record Identifier
- 9984949196602771
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