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.

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 initiat

SUBMITTER: Fujita N 

PROVIDER: S-EPMC12503203 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature