Impact of adding carboplatin to docetaxel chemotherapy on testosterone levels and treatment outcomes in metastatic docetaxel-resistant prostate cancer

Abstract Docetaxel resistance, particularly post-androgen-receptor targeted therapy (ART), undermines its clinical utility in metastatic castration-resistant prostate cancer (mCRPC). This study explores the impact of docetaxel plus carboplatin (DC) chemotherapy on serum testosterone levels in metast...

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Main Authors: Hejar Atalan, Michael A. Morgan, Philipp Ivanyi, Paula Kappler, Florian H. Heidel, Christoph W. M. Reuter
Format: Article
Language:English
Published: Nature Portfolio 2025-06-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-025-04667-0
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author Hejar Atalan
Michael A. Morgan
Philipp Ivanyi
Paula Kappler
Florian H. Heidel
Christoph W. M. Reuter
author_facet Hejar Atalan
Michael A. Morgan
Philipp Ivanyi
Paula Kappler
Florian H. Heidel
Christoph W. M. Reuter
author_sort Hejar Atalan
collection DOAJ
description Abstract Docetaxel resistance, particularly post-androgen-receptor targeted therapy (ART), undermines its clinical utility in metastatic castration-resistant prostate cancer (mCRPC). This study explores the impact of docetaxel plus carboplatin (DC) chemotherapy on serum testosterone levels in metastatic docetaxel-resistant prostate cancer (mDRPC) patients. 123 mDRPC patients were categorized into three groups: (1) no previous ART (n = 65), (2) previous ART with serum free testosterone (FT) > detection limit (DL) at baseline (n = 31), and (3) previous ART with FT < DL at baseline (n = 27). Salvage DC chemotherapy led to significant reductions in FT and total testosterone (TT) levels in groups 1 and 2 (p < 0.05). Group 1 saw FT decrease from 0.85 pg/mL to below the DL (< 0.18 pg/mL) with 54.3% achieving complete reduction (CR); group 2 showed FT decrease from 0.28 pg/mL to below the DL with 67.7% achieving CR; group 3 had baseline FT values already below the DL with 96.3% maintaining this level. TT reductions to below the DL occurred in all groups. Low FT was an independent predictor for better PFS and for improved OS in groups 1 and 2. Our data indicate that adding carboplatin may improve the therapeutic effects of docetaxel in a castration-dependent setting.
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spelling doaj-art-2b065e661983416f87d8ee40b088eca12025-08-20T03:22:50ZengNature PortfolioScientific Reports2045-23222025-06-0115111510.1038/s41598-025-04667-0Impact of adding carboplatin to docetaxel chemotherapy on testosterone levels and treatment outcomes in metastatic docetaxel-resistant prostate cancerHejar Atalan0Michael A. Morgan1Philipp Ivanyi2Paula Kappler3Florian H. Heidel4Christoph W. M. Reuter5Department of Hematology, Hemostasis, Oncology and Stem Cell Transplantation, Hannover Medical SchoolInstitute of Experimental Hematology, Hannover Medical SchoolDepartment of Hematology, Hemostasis, Oncology and Stem Cell Transplantation, Hannover Medical SchoolDepartment of Hematology, Hemostasis, Oncology and Stem Cell Transplantation, Hannover Medical SchoolDepartment of Hematology, Hemostasis, Oncology and Stem Cell Transplantation, Hannover Medical SchoolDepartment of Hematology, Hemostasis, Oncology and Stem Cell Transplantation, Hannover Medical SchoolAbstract Docetaxel resistance, particularly post-androgen-receptor targeted therapy (ART), undermines its clinical utility in metastatic castration-resistant prostate cancer (mCRPC). This study explores the impact of docetaxel plus carboplatin (DC) chemotherapy on serum testosterone levels in metastatic docetaxel-resistant prostate cancer (mDRPC) patients. 123 mDRPC patients were categorized into three groups: (1) no previous ART (n = 65), (2) previous ART with serum free testosterone (FT) > detection limit (DL) at baseline (n = 31), and (3) previous ART with FT < DL at baseline (n = 27). Salvage DC chemotherapy led to significant reductions in FT and total testosterone (TT) levels in groups 1 and 2 (p < 0.05). Group 1 saw FT decrease from 0.85 pg/mL to below the DL (< 0.18 pg/mL) with 54.3% achieving complete reduction (CR); group 2 showed FT decrease from 0.28 pg/mL to below the DL with 67.7% achieving CR; group 3 had baseline FT values already below the DL with 96.3% maintaining this level. TT reductions to below the DL occurred in all groups. Low FT was an independent predictor for better PFS and for improved OS in groups 1 and 2. Our data indicate that adding carboplatin may improve the therapeutic effects of docetaxel in a castration-dependent setting.https://doi.org/10.1038/s41598-025-04667-0Prostate cancerDocetaxel resistanceCarboplatinTestosterone
spellingShingle Hejar Atalan
Michael A. Morgan
Philipp Ivanyi
Paula Kappler
Florian H. Heidel
Christoph W. M. Reuter
Impact of adding carboplatin to docetaxel chemotherapy on testosterone levels and treatment outcomes in metastatic docetaxel-resistant prostate cancer
Scientific Reports
Prostate cancer
Docetaxel resistance
Carboplatin
Testosterone
title Impact of adding carboplatin to docetaxel chemotherapy on testosterone levels and treatment outcomes in metastatic docetaxel-resistant prostate cancer
title_full Impact of adding carboplatin to docetaxel chemotherapy on testosterone levels and treatment outcomes in metastatic docetaxel-resistant prostate cancer
title_fullStr Impact of adding carboplatin to docetaxel chemotherapy on testosterone levels and treatment outcomes in metastatic docetaxel-resistant prostate cancer
title_full_unstemmed Impact of adding carboplatin to docetaxel chemotherapy on testosterone levels and treatment outcomes in metastatic docetaxel-resistant prostate cancer
title_short Impact of adding carboplatin to docetaxel chemotherapy on testosterone levels and treatment outcomes in metastatic docetaxel-resistant prostate cancer
title_sort impact of adding carboplatin to docetaxel chemotherapy on testosterone levels and treatment outcomes in metastatic docetaxel resistant prostate cancer
topic Prostate cancer
Docetaxel resistance
Carboplatin
Testosterone
url https://doi.org/10.1038/s41598-025-04667-0
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