Gleason score and docetaxel response in advanced hormone-sensitive prostate cancer: The lower the better

Aim: Recently, three randomized controlled trials evaluated the addition of docetaxel to ADT in advanced hormone-sensitive prostate cancer (aHSPC). Interestingly, all trials showed a trend towards improved OS in the subgroup of patients with Gleason <8 tumors. We herein performed a meta-analysis...

Full description

Bibliographic Details
Main Authors: Omer Dizdar, Deniz Can Guven, Gurkan Guner, Mustafa Erman, Mutlu Hayran
Format: Article
Language:English
Published: Turkiye Klinikleri 2019-08-01
Series:Journal of Oncological Sciences
Online Access:http://www.sciencedirect.com/science/article/pii/S2452336418300967
_version_ 1828022952063401984
author Omer Dizdar
Deniz Can Guven
Gurkan Guner
Mustafa Erman
Mutlu Hayran
author_facet Omer Dizdar
Deniz Can Guven
Gurkan Guner
Mustafa Erman
Mutlu Hayran
author_sort Omer Dizdar
collection DOAJ
description Aim: Recently, three randomized controlled trials evaluated the addition of docetaxel to ADT in advanced hormone-sensitive prostate cancer (aHSPC). Interestingly, all trials showed a trend towards improved OS in the subgroup of patients with Gleason <8 tumors. We herein performed a meta-analysis of these trials to assess the OS benefit of docetaxel in different Gleason score groups (<8 vs ≥8). Material and Method: We searched the Pubmed and Medline databases and ASCO conference proceedings (through February 1st 2018) for relevant trials. For each study, median OS values and hazard ratios (HR) with 95% confidence intervals (CI) collected across different Gleason score groups. We combined the HRs from each of the three eligible trials in the meta-analysis using the random-effect model. Results: Three eligible studies were included in the analyses (CHAARTED, GETUG-AFU-15, and STAMPEDE). In the meta-analysis of three studies, docetaxel-based chemotherapy plus ADT was associated with improved OS [HR: 0.74; 95% CI: 0.62-0.87; p<0.001]. Among patients with tumor Gleason score <8, addition of docetaxel to ADT significantly improved overall survival [HR: 0.66, 95% CI: 0.52–0.85, p=0.001]. Although there was a trend towards improved OS with docetaxel in patients with Gleason score of ≥8, the magnitude of risk reduction was lower and did not achieve statistical significance [HR: 0.81, 95% CI: 0.64–1.02, p=0.066]. Conclusion: In this meta-analysis, OS benefit with the addition of docetaxel to ADT was more prominent in Gleason score <8 tumors. We propose that Gleason score can be a useful criteria for treatment selection in patients with aHSPC. Keywords: Hormone-sensitive, prostate cancer, docetaxel, gleason score
first_indexed 2024-04-10T12:18:43Z
format Article
id doaj.art-38b91bdbfa5842a3918ad42b195e3c97
institution Directory Open Access Journal
issn 2452-3364
language English
last_indexed 2024-04-10T12:18:43Z
publishDate 2019-08-01
publisher Turkiye Klinikleri
record_format Article
series Journal of Oncological Sciences
spelling doaj.art-38b91bdbfa5842a3918ad42b195e3c972023-02-15T16:15:33ZengTurkiye KlinikleriJournal of Oncological Sciences2452-33642019-08-01524548Gleason score and docetaxel response in advanced hormone-sensitive prostate cancer: The lower the betterOmer Dizdar0Deniz Can Guven1Gurkan Guner2Mustafa Erman3Mutlu Hayran4Department of Preventive Oncology, Hacettepe University Cancer Institute, Ankara, TurkeyDepartment of Medical Oncology, Hacettepe University Cancer Institute, Ankara, Turkey; Corresponding author. Hacettepe University Cancer Institute, Department of Medical Oncology, Ankara, Turkey.Department of Medical Oncology, Hacettepe University Cancer Institute, Ankara, TurkeyDepartment of Preventive Oncology, Hacettepe University Cancer Institute, Ankara, TurkeyDepartment of Preventive Oncology, Hacettepe University Cancer Institute, Ankara, TurkeyAim: Recently, three randomized controlled trials evaluated the addition of docetaxel to ADT in advanced hormone-sensitive prostate cancer (aHSPC). Interestingly, all trials showed a trend towards improved OS in the subgroup of patients with Gleason <8 tumors. We herein performed a meta-analysis of these trials to assess the OS benefit of docetaxel in different Gleason score groups (<8 vs ≥8). Material and Method: We searched the Pubmed and Medline databases and ASCO conference proceedings (through February 1st 2018) for relevant trials. For each study, median OS values and hazard ratios (HR) with 95% confidence intervals (CI) collected across different Gleason score groups. We combined the HRs from each of the three eligible trials in the meta-analysis using the random-effect model. Results: Three eligible studies were included in the analyses (CHAARTED, GETUG-AFU-15, and STAMPEDE). In the meta-analysis of three studies, docetaxel-based chemotherapy plus ADT was associated with improved OS [HR: 0.74; 95% CI: 0.62-0.87; p<0.001]. Among patients with tumor Gleason score <8, addition of docetaxel to ADT significantly improved overall survival [HR: 0.66, 95% CI: 0.52–0.85, p=0.001]. Although there was a trend towards improved OS with docetaxel in patients with Gleason score of ≥8, the magnitude of risk reduction was lower and did not achieve statistical significance [HR: 0.81, 95% CI: 0.64–1.02, p=0.066]. Conclusion: In this meta-analysis, OS benefit with the addition of docetaxel to ADT was more prominent in Gleason score <8 tumors. We propose that Gleason score can be a useful criteria for treatment selection in patients with aHSPC. Keywords: Hormone-sensitive, prostate cancer, docetaxel, gleason scorehttp://www.sciencedirect.com/science/article/pii/S2452336418300967
spellingShingle Omer Dizdar
Deniz Can Guven
Gurkan Guner
Mustafa Erman
Mutlu Hayran
Gleason score and docetaxel response in advanced hormone-sensitive prostate cancer: The lower the better
Journal of Oncological Sciences
title Gleason score and docetaxel response in advanced hormone-sensitive prostate cancer: The lower the better
title_full Gleason score and docetaxel response in advanced hormone-sensitive prostate cancer: The lower the better
title_fullStr Gleason score and docetaxel response in advanced hormone-sensitive prostate cancer: The lower the better
title_full_unstemmed Gleason score and docetaxel response in advanced hormone-sensitive prostate cancer: The lower the better
title_short Gleason score and docetaxel response in advanced hormone-sensitive prostate cancer: The lower the better
title_sort gleason score and docetaxel response in advanced hormone sensitive prostate cancer the lower the better
url http://www.sciencedirect.com/science/article/pii/S2452336418300967
work_keys_str_mv AT omerdizdar gleasonscoreanddocetaxelresponseinadvancedhormonesensitiveprostatecancerthelowerthebetter
AT denizcanguven gleasonscoreanddocetaxelresponseinadvancedhormonesensitiveprostatecancerthelowerthebetter
AT gurkanguner gleasonscoreanddocetaxelresponseinadvancedhormonesensitiveprostatecancerthelowerthebetter
AT mustafaerman gleasonscoreanddocetaxelresponseinadvancedhormonesensitiveprostatecancerthelowerthebetter
AT mutluhayran gleasonscoreanddocetaxelresponseinadvancedhormonesensitiveprostatecancerthelowerthebetter