Abstract
Purpose
To compare the efficacy and safety of short-term versus long-term hormonotherapy (HT) plus radiotherapy (RT) or prostatectomy (RP) for prostate cancer.
Methods
Literatures were searched from Embase, PubMed, Web of science and Cochrane Library up to October, 2012. Quality of the study was evaluated according to the Cochrane’s risk of bias of randomized controlled trial (RCT); the Grading of Recommendations Assessment, Development and Evaluation System was used to rate the level of evidence. RevMan 5.1 was used for statistical analysis. Two comparisons were of interest: RT plus short-term HT versus RT plus long-term HT and RP plus short-term HT versus RP plus long-term HT. Pooled risk ratio or standardized mean differences were calculated; HT adverse reactions were descriptively evaluated.
Results
Nine RCTs (total 4,743 patients) were included, 7 RCTs compared RT plus short-term HT with RT plus long-term HT, 2 RCTs compared RP plus short-term HT with RP plus long-term HT. Meta-analysis showed there was no significant difference in overall survival, disease-free survival and PSA level before RP; long-term was superior to short-term hormonotherapy in biochemical failure rate, clinical progression rate, prostate cancer-specific mortality, positive surgical margin rate and prostate volume before RP. Systematic review demonstrated adverse events caused by the increased length of HT were more common.
Conclusions
Long-term HT plus RT showed a trend toward improved overall survival; long-term HT plus RP declined positive surgical margin rate and prostate volume before RP. So, long-term HT may benefit more, but it did not significantly improve the patients’ overall survival, and the adverse reactions are inevitable.
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Acknowledgments
The authors thank Bo Li, Digestive System Department, Xiyuan Hospital, China Academy of Traditional Chinese Medicine, for valuable discussions. Supported by NSFC (Natural Science Foundation of China) (81160285) and Guangxi Natural Science Foundation (2010gxnsfa013240).
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The authors declare that they have no conflict of interest.
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Appendix
Appendix
EMBASE Search terms
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1.
‘prostate cancer’:ab,ti OR ‘prostate carcinoma’:ab,ti OR ‘prostate neoplasm’:ab,ti OR ‘prostate neoplasms’:ab,ti OR ‘prostatic cancer’:ab,ti OR ‘prostatic carcinoma’:ab,ti OR ‘prostatic neoplasm’:ab,ti OR ‘prostatic neoplasms’:ab,ti OR ‘prostate cancer’/exp
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2.
‘hormone therapy’:ab,ti OR ‘hormonal therapy’:ab,ti OR ‘hormonotherapy’:ab,ti OR ‘adjuvant hormonal therapy’:ab,ti OR ‘neoadjuvant hormonal therapy’:ab,ti OR ‘androgen deprivation’:ab,ti OR ‘androgen antagonists’:ab,ti OR ‘androgen suppression’:ab,ti OR ‘endocrine therapy’:ab,ti OR ‘cancer hormone therapy’/exp OR ‘hormonal therapy’/exp
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3.
‘radiotherapy’:ab,ti OR ‘radiation therapy’:ab,ti OR ‘external radiation therapy’:ab,ti OR ‘radiotherapy’/exp OR ‘prostatectomy’:ab,ti OR ‘prostate surgery’:ab,ti OR ‘ prostatectomy ‘/exp
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4.
random*:ab,ti OR ‘randomized controlled trial’:ab,ti OR ‘randomized controlled trial’/exp OR ‘randomized controlled trial (topic)’/exp
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5.
AND #1 AND #2 AND #3 AND #4.
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Zhou, ZR., Zhu, XD., Xia, J. et al. Short-term versus long-term hormone therapy plus radiotherapy or prostatectomy for prostate cancer: a systematic review and meta-analysis. J Cancer Res Clin Oncol 139, 783–796 (2013). https://doi.org/10.1007/s00432-013-1383-7
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DOI: https://doi.org/10.1007/s00432-013-1383-7