BackgroundRenal impairment can affect treatment tolerability and outcome in individuals with cancer. We aimed to assess the safety and efficacy of nab-paclitaxel for previously treated patients with advanced non–small cell lung cancer (NSCLC) and renal impairment enrolled in a phase 3 trial of nab-paclitaxel vs. docetaxel. Patients and MethodsPreviously treated NSCLC patients were randomly allocated (1:1) to receive docetaxel (60 mg/m²) on day 1 or nab-paclitaxel (100 mg/m²) on days 1, 8, and 15 of a 21-day cycle. Safety and efficacy outcomes of treatment were evaluated according to renal function. ResultsAmong the 503 patients enrolled in the phase 3 trial, 17.3% had moderate renal impairment (creatinine clearance of ≤50 mL/min, n = 49 for docetaxel and n = 38 for nab-paclitaxel) and 53.1% had mild renal impairment (creatinine clearance of >50 to ≤80 mL/min, n = 133 for docetaxel and n = 134 for nab-paclitaxel). For patients with renal impairment, the incidence of febrile neutropenia was lower in the nab-paclitaxel group than in the docetaxel group. The difference in treatment efficacy for nab-paclitaxel vs. docetaxel among patients with moderate or mild renal impairment was similar to that among the overall study population. ConclusionNab-paclitaxel was found to be tolerable and beneficial for previously treated patients with advanced NSCLC and mild or moderate renal impairment.