Differential prognostic factors in low- and high-burden de novo metastatic hormone-sensitive prostate cancer patients.

Abstract

Metastatic burden is a critical factor for therapy decision-making in metastatic hormone-sensitive prostate cancer. The present study aimed to identify prognostic factors in men with high- or low-metastatic burden treated with primary androgen-deprivation therapy. The study included 2450 men with de novo metastatic prostate cancer who were treated with primary androgen-deprivation therapy at 30 institutions across Japan between 2008 and 2017. We investigated the prognostic value of various clinicopathological parameters for progression-free survival (PFS) and overall survival (OS) in patients stratified by low- or high-metastatic burden. Among the 2450 men, 841 (34.3%) and 1609 (65.7%) were classified as having low- and high-metastatic burden, respectively. Median PFS of the low- and high-burden groups were 44.5 and 16.1 months, respectively, and the median OS was 103.2 and 62.7 months, respectively. Percentage of biopsy-positive core, biopsy Gleason grade group, T-stage, and N-stage were identified to be differentially prognostic. M1a was associated with worse PFS than was M1b in the low-burden group, whereas lung metastasis was associated with better PFS and OS than was M1b in the high-burden group. Differential prognostic factors were identified for patients with low- and high-burden metastatic prostate cancer. These results may assist in decision-making to select the optimal therapeutic strategies for patients with different metastatic burdens.

• Authors: Masaki Shiota, Naoki Terada, Toshihiro Saito, Akira Yokomizo, Naoki Kohei, Takayuki Goto, Sadafumi Kawamura, Yasuhiro Hashimoto, Atsushi Takahashi, Takahiro Kimura, Ken-Ichi Tabata, Ryotaro Tomida, Kohei Hashimoto, Toshihiko Sakurai, Toru Shimazui, Shinichi Sakamoto, Manabu Kamiyama, Nobumichi Tanaka, Koji Mitsuzuka, Takuma Kato, Shintaro Narita, Hiroaki Yasumoto, Shogo Teraoka, Masashi Kato, Takahiro Osawa, Yoshiyuki Nagumo, Hiroaki Matsumoto, Hideki Enokida, Takayuki Sugiyama, Kentaro Kuroiwa, Takahiro Inoue, Takashi Mizowaki, Toshiyuki Kamoto, Takahiro Kojima, Hiroshi Kitamura, Mikio Sugimoto, Hiroyuki Nishiyama, Masatoshi Eto, Japanese Urological Oncology Group (JUOG)
• Journal: Cancer science (Cancer Sci) Vol. 112 Issue 4 Pg. 1524-1533 (Apr 2021) ISSN: 1349-7006 [Electronic] England
• PMID: 33159829 (Publication Type: Journal Article)
• Copyright: © 2020 The Authors. Cancer Science published by John Wiley & Sons Australia, Ltd on behalf of Japanese Cancer Association.

Chemical References

• Androgen Antagonists
• Hormones

Topics

• Aged
• Androgen Antagonists (therapeutic use)
• Biopsy (methods)
• Hormones (metabolism)
• Humans
• Japan
• Male
• Neoplasm Staging (methods)
• Prognosis
• Progression-Free Survival
• Prostatic Neoplasms (drug therapy, metabolism, pathology)
• Retrospective Studies