Impact of Impaired Renal Function on the Efficacy and Safety of Second-Line Tyrosine Kinase Inhibitor Therapy After First-Line Immuno-Oncology Combination Therapy in Metastatic Renal Cell Carcinoma: A Japanese Multicenter Retrospective Study.
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引用次数: 0
Abstract
Objectives: To evaluate the effects of renal impairment at the time of second-line tyrosine kinase inhibitor (TKI) therapy initiation and rapid renal function decline during first-line immuno-oncology (IO) combination therapy on metastatic renal cell carcinoma (mRCC) patients treated with second-line TKIs.
Methods: This multicenter retrospective study included 243 mRCC patients treated with first-line IO combination therapy, followed by second-line TKI therapy. Patients were divided into three groups using the estimated glomerular filtration rate (eGFR; mL/min/1.73 m2) at the time of second-line TKI therapy initiation: eGFR ≥ 60, 30 ≤ eGFR < 60, and eGFR < 30. The eGFR slope during first-line IO combination therapy was calculated using eGFR measurements when initiating first-line and second-line therapies. Multivariable Cox proportional hazards regression analyses were performed to evaluate the effects of renal impairment and eGFR slope on progression-free survival (PFS) and overall survival (OS).
Results: The incidence rates of any grade and grade ≥ 3 adverse events were not significantly different among the three groups. Univariable analyses indicated that eGFR slope was not significantly associated with PFS or OS. Multivariable analyses suggested that moderate (30 ≤ eGFR < 60 mL/min/1.73 m2) and severe (eGFR < 30 mL/min/1.73 m2) renal impairment had no effects on shorter PFS, whereas severe renal impairment was independently and significantly associated with shorter OS.
Conclusions: TKIs can be safely used as a second-line treatment after first-line IO combination therapy in mRCC patients with renal impairment without sacrificing oncological outcomes, except for in patients with severe renal impairment.
期刊介绍:
International Journal of Urology is the official English language journal of the Japanese Urological Association, publishing articles of scientific excellence in urology. Submissions of papers from all countries are considered for publication. All manuscripts are subject to peer review and are judged on the basis of their contribution of original data and ideas or interpretation.