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. 2015 Nov 27;49(4):402-8.
doi: 10.1515/raon-2015-0038. eCollection 2015 Dec.

Impact of comorbidity on the outcome in men with advanced prostate cancer treated with docetaxel

Andrej Zist  1 , Eitan Amir  2 , Alberto F Ocana  3 , Bostjan Seruga  1
Affiliations

Impact of comorbidity on the outcome in men with advanced prostate cancer treated with docetaxel

Andrej Zist et al. Radiol Oncol. .

Abstract

Background: Men with metastatic castrate-resistant prostate cancer (mCRPC) may not receive docetaxel in everyday clinical practice due to comorbidities. Here we explore the impact of comorbidity on outcome in men with mCRPC treated with docetaxel in a population-based outcome study.

Methods: Men with mCRPC treated with docetaxel at the Institute of Oncology Ljubljana between 2005 and 2012 were eligible. Comorbidity was assessed by the age-adjusted Charlson comorbidity index (aa-CCI) and adult comorbidity evaluation (ACE-27) index. Hospital admissions due to the toxicity and deaths during treatment with docetaxel were used as a measure of tolerability. Association between comorbidity and overall survival (OS) was tested using the Cox proportional hazards analysis.

Results: Two hundred and eight men were treated with docetaxel. No, mild, moderate and severe comorbidity was present in 2%, 32%, 53% and 13% using aa-CCI and in 27%, 35%, 29% and 8% when assessed by ACE-27. A substantial dose reduction of docetaxel occurred more often in men with moderate or severe comorbidity as compared to those with no or mild comorbidity. At all comorbidity levels about one-third of men required hospitalization or died during treatment with docetaxel. In univariate analysis a higher level of comorbidity was not associated with worse OS (aa-CCI HR 0.99; [95% CI 0.87-1.13], p = 0.93; ACE-27: HR 0.96; [95% CI 0.79-1.17], p = 0.69).

Conclusions: Men with mCRPC, who have comorbidities may benefit from treatment with docetaxel.

Keywords: chemotherapy; comorbidity; metastatic castration-resistant prostate cancer.

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