Pre-transplant testosterone and outcome of men after allogeneic stem cell transplantation

Testosterone is an important determinant of endothelial function and vascular health in men. As both factors play a role in mortality after allogeneic stem cell transplantation (alloSCT), we retrospectively evaluated the impact of pre-transplant testosterone levels on outcome in male patients underg...

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Main Authors: Radujković, Aleksandar (Author) , Kordelas, Lambros (Author) , Krzykalla, Julia (Author) , Benner, Axel (Author) , Schult, David (Author) , Majer-Lauterbach, Joshua (Author) , Beelen, Dietrich W. (Author) , Müller-Tidow, Carsten (Author) , Kasperk, Christian (Author) , Dreger, Peter (Author) , Luft, Thomas (Author)
Format: Article (Journal)
Language:English
Published: 2020
In: Haematologica
Year: 2020, Volume: 105, Issue: 5, Pages: 1454-1464
ISSN:1592-8721
DOI:10.3324/haematol.2019.220293
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.3324/haematol.2019.220293
Verlag, lizenzpflichtig, Volltext: http://www.haematologica.org/content/105/5/1454
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Author Notes:Aleksandar Radujkovic, Lambros Kordelas, Julia Krzykalla, Axel Benner, David Schult, Joshua Majer-Lauterbach, Dietrich W. Beelen, Carsten Müller-Tidow, Christian Kasperk, Peter Dreger and Thomas Luft

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520 |a Testosterone is an important determinant of endothelial function and vascular health in men. As both factors play a role in mortality after allogeneic stem cell transplantation (alloSCT), we retrospectively evaluated the impact of pre-transplant testosterone levels on outcome in male patients undergoing alloSCT. In the discovery cohort (n=346), an impact on outcome was observed only in the subgroup of patients allografted for acute myeloid leukemia (AML) (n=176, hereafter termed ‘training cohort’). In the training cohort, lower pre-transplant testosterone levels were significantly associated with shorter overall survival (OS) [hazard ratio (HR) for a decrease of 100 ng/dL: 1.11, P=0.045]. This was based on a higher hazard of non-relapse mortality (NRM) (cause-specific HR: 1.25, P=0.013), but not relapse (cause-specific HR: 1.06, P=0.277) in the multivariable models. These findings were replicated in a confirmation cohort of 168 male patients allografted for AML in a different center (OS, HR: 1.15, P=0.012 and NRM, cause-specific HR: 1.23; P=0.008). Next, an optimized cut-off point for pre-transplant testosterone was derived from the training set and evaluated in the confirmation cohort. In multivariable models, low pre-transplant testosterone status (<250 ng/dL) was associated with worse OS (hazard ratio 1.95, P=0.021) and increased NRM (cause-specific HR 2.68, P=0.011) but not with relapse (cause-specific HR: 1.28, P=0.551). Our findings may provide a rationale for prospective studies on testosterone/androgen assessment and supplementation in male patients undergoing alloSCT for AML. 
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