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The expression of PD-L1 in patients with castrate prostate cancer treated by enzalutamide

Identifikátory výsledku

  • Kód výsledku v IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F27283933%3A_____%2F18%3A00006175" target="_blank" >RIV/27283933:_____/18:00006175 - isvavai.cz</a>

  • Výsledek na webu

  • DOI - Digital Object Identifier

Alternativní jazyky

  • Jazyk výsledku

    angličtina

  • Název v původním jazyce

    The expression of PD-L1 in patients with castrate prostate cancer treated by enzalutamide

  • Popis výsledku v původním jazyce

    Purpose: The purpose of our retrospectively study was to evaluate the PD-L1 expression in patients with metastatic castration-resistant prostate cancer (mCRPC) treated with enzalutamide. Methods: A total of 33 patients with mCRPC were treated with enzalutamide. All patients were previously treated by one or two lines of chemotherapy. Enzalutamide was administered in the standard dose (160 mg orally once daily as four 40 mg capsules). No corticosteroids were concomitantly administered. PD-L1 expression was determined semiquantitavely by immunohistochemistry. Results: Enzalutamide was well tolerated with predominantly G1-2 toxicity. G3-4 anaemia was found in 6 patients and G3-4 thrombocytopenia in 2 patients. One patient had cerebral hemorrhage. The median progression free survival (PFS) was 7.0 months (95% CI 6.1-7.9). The median overall survival (OS) was 8.4 months (95% CI: 5.1-11.7). The shorter OS was noted in the subgroup of patients with decreasing hemoglobin levels during enzalutamide treatment with hazard ratio (HR) 0.155 (95% CI 0.053-0.449) and in patients with Gleason score 8-10 with HR 0.334 (95% CI 0.12-0.927) according to the regression analysis. All tissue samples were scored as negative in the detection of PD-L1. Conclusions: The expression of PD-L1 in prostate cancer cells as potential new predictive biomarker was not confirmed. Further studies are needed to clarify this topic.

  • Název v anglickém jazyce

    The expression of PD-L1 in patients with castrate prostate cancer treated by enzalutamide

  • Popis výsledku anglicky

    Purpose: The purpose of our retrospectively study was to evaluate the PD-L1 expression in patients with metastatic castration-resistant prostate cancer (mCRPC) treated with enzalutamide. Methods: A total of 33 patients with mCRPC were treated with enzalutamide. All patients were previously treated by one or two lines of chemotherapy. Enzalutamide was administered in the standard dose (160 mg orally once daily as four 40 mg capsules). No corticosteroids were concomitantly administered. PD-L1 expression was determined semiquantitavely by immunohistochemistry. Results: Enzalutamide was well tolerated with predominantly G1-2 toxicity. G3-4 anaemia was found in 6 patients and G3-4 thrombocytopenia in 2 patients. One patient had cerebral hemorrhage. The median progression free survival (PFS) was 7.0 months (95% CI 6.1-7.9). The median overall survival (OS) was 8.4 months (95% CI: 5.1-11.7). The shorter OS was noted in the subgroup of patients with decreasing hemoglobin levels during enzalutamide treatment with hazard ratio (HR) 0.155 (95% CI 0.053-0.449) and in patients with Gleason score 8-10 with HR 0.334 (95% CI 0.12-0.927) according to the regression analysis. All tissue samples were scored as negative in the detection of PD-L1. Conclusions: The expression of PD-L1 in prostate cancer cells as potential new predictive biomarker was not confirmed. Further studies are needed to clarify this topic.

Klasifikace

  • Druh

    J<sub>ost</sub> - Ostatní články v recenzovaných periodicích

  • CEP obor

  • OECD FORD obor

    30204 - Oncology

Návaznosti výsledku

  • Projekt

  • Návaznosti

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Ostatní

  • Rok uplatnění

    2018

  • Kód důvěrnosti údajů

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Údaje specifické pro druh výsledku

  • Název periodika

    JBuon

  • ISSN

    1107-0625

  • e-ISSN

  • Svazek periodika

    23

  • Číslo periodika v rámci svazku

    6

  • Stát vydavatele periodika

    GR - Řecká republika

  • Počet stran výsledku

    7

  • Strana od-do

    1796-1802

  • Kód UT WoS článku

  • EID výsledku v databázi Scopus