10.3389/fonc.2020.00558.s003
Sahyun Pak
Sahyun
Pak
Myeong Seong Kim
Myeong Seong
Kim
Eun Young Park
Eun Young
Park
Sung Han Kim
Sung Han
Kim
Kang Hyun Lee
Kang Hyun
Lee
Jae Young Joung
Jae Young
Joung
Image_3_Association of Body Composition With Survival and Treatment Efficacy in Castration-Resistant Prostate Cancer.JPEG
Frontiers
2020
castration-resistant prostate cancer
body composition
survival
treatment efficacy
disease progression
2020-04-17 09:42:12
Figure
https://frontiersin.figshare.com/articles/figure/Image_3_Association_of_Body_Composition_With_Survival_and_Treatment_Efficacy_in_Castration-Resistant_Prostate_Cancer_JPEG/12143823
<p>Objectives: The association of body composition with survival and the efficacy of first-line treatment was investigated in patients with castration-resistant prostate cancer (CRPC).</p><p>Methods: The records of CRPC patients treated with docetaxel or androgen receptor signaling inhibitors (ARSi) between 2005 and 2018 were reviewed. Skeletal muscle index (SMI), visceral fat index, and subcutaneous fat index were evaluated using pretreatment computed tomography images.</p><p>Results: Of 230 eligible patients, 144 received docetaxel, and 86 received ARSi as the first-line treatment for CRPC. The SMI<sup>hi</sup> (based on median values) group had higher prostate-specific antigen (PSA) progression-free survival (median 13.5 vs. 8.3 months, p = 0.030), radiologic progression-free survival (14.9 vs. 9.1 months, p < 0.001), and overall survival (24.1 vs. 16.9 months, p = 0.015) than the SMI<sup>lo</sup> group. In docetaxel-treated patients, the SMI<sup>hi</sup> group had higher PSA progression-free survival (13.5 vs. 5.9 months, p = 0.016) and radiologic progression-free survival (14.6 vs. 6.7 months, p < 0.001) than the SMI<sup>lo</sup> group. However, PSA progression-free survival and radiologic progression-free survival were comparable between the two groups in ARSi-treated patients. SMI was independently associated with the risk of radiologic progression in patients treated with docetaxel but not in those treated with ARSi.</p><p>Conclusions: High skeletal muscle mass may be associated with reduced risk of disease progression and mortality in patients with CRPC. However, the significance of these relationships is limited in patients treated with docetaxel. These results suggest that assessing skeletal muscle mass may be worthwhile when selecting treatments for CRPC; however, further prospective validation and large-scale studies are needed.</p>