GEM/CIS REGIMEN EFFECTIVE IN UROTHELIAL CANCER PATIENTS WITH SATISFACTORY RENAL FUNCTION

Jpn J Clin Oncol. 2015 Jun 7. pii: hyv082. [Epub ahead of print]

Impact of renal function of patients with advanced urothelial cancer on eligibility for first-line chemotherapy and treatment outcomes.

Ichioka D1, Miyazaki J1, Inoue T2, Kageyama S3, Sugimoto M4, Mitsuzuka K5, Matsui Y6, Shiraishi Y7, Kinoshita H8, Wakeda H9, Nomoto T10, Kikuchi E11, Nishiyama H12.

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Abstract

OBJECTIVE: 

The aim of the study is to clarify the clinical effects of first-line chemotherapy regimens for advanced urothelial cancer on clinical responses and survival of patients grouped by renal function.

METHODS: 

In this multicenter retrospective cohort study, 345 urothelial cancer patients received systemic chemotherapy for metastatic or unresectable disease in 17 centers (2004-10).

RESULTS: 

Two hundred and forty-one patients were treated with methotrexate, vinblastine, doxorubicin and cisplatin/methotrexate, epirubicin and cisplatin (n = 136) or gemcitabine and cisplatin (n = 105) followed by carboplatin-based treatments, non-platinum treatments or other regimens. After 2008, gemcitabine and cisplatin was the most frequently used regimen in patients with an estimated glomerular filtration rate <60 m="" min="" ml="" span="" style="font-size: 0.8461em; line-height: 1.6363em; position: relative; top: -0.5em; vertical-align: baseline;">2

 and in those with estimated glomerular filtration rate ≥60 ml/min/1.73 m2. The gemcitabine and cisplatin patients' complete response rate was 10.5% and their response rate was 52.4%, which was highest among all regimens. Gemcitabine and cisplatin demonstrated a better 3-year overall survival when the estimated glomerular filtration rate was ≥60 ml/min/1.73 m2 (31.4%), but it tended to be worse when the estimated glomerular filtration rate was <60 m="" min="" ml="" span="" style="font-size: 0.8461em; line-height: 1.6363em; position: relative; top: -0.5em; vertical-align: baseline;">2 (14.1%). In the latter cases, the dose reduction rate of gemcitabine and cisplatin was high (43.9%). Among the patients with estimated glomerular filtration rate <60 m="" min="" ml="" span="" style="font-size: 0.8461em; line-height: 1.6363em; position: relative; top: -0.5em; vertical-align: baseline;">2, the 1-year overall survival of the patients treated with a reduced dose of gemcitabine and cisplatin was significantly lower than that of those treated with standard-dose gemcitabine and cisplatin (26.2 vs. 60.3%, respectively, P = 0.0108).

CONCLUSIONS: 

Gemcitabine and cisplatin provided favorable responses and survival in patients with estimated glomerular filtration rate ≥60 ml/min/1.73 m2 but unsatisfactory oncological outcomes in patients with estimated glomerular filtration rate <60 m="" min="" ml="" span="" style="font-size: 0.8461em; line-height: 1.6363em; position: relative; top: -0.5em; vertical-align: baseline;">2

, especially when treated with a reduced dose. Alternative regimens might be optimal rather than reduced-dose gemcitabine and cisplatin in patients with estimated glomerular filtration rate <60 m="" min="" ml="" span="" style="font-size: 0.8461em; line-height: 1.6363em; position: relative; top: -0.5em; vertical-align: baseline;">2.