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First-Line PAzopanib in NOn–clear-cell Renal cArcinoMA: The Italian Retrospective Multicenter PANORAMA Study

2016; Elsevier BV; Volume: 15; Issue: 4 Linguagem: Inglês

10.1016/j.clgc.2016.12.024

1938-0682

Sebastiano Buti, Melissa Bersanelli, Francesca Maines, Gaetano Facchini, Francesco Gelsomino, Fable Zustovich, Matteo Santoni, Elena Verri, Ugo De Giorgi, Cristina Masini, Franco Morelli, Maria Giuseppa Vitale, Teodoro Sava, Giuseppe Prati, Carmelinda Librici, Anna Paola Fraccon, Giuseppe Fornarini, Marco Maruzzo, Francesco Leonardi, Orazio Caffo,

Cancer Genomics and Diagnostics

Pazopanib is a standard first-line treatment for metastatic clear-cell renal cell carcinoma (ccRCC). Very few data on its activity in non-clear-cell renal cell carcinoma (nccRCC) are currently available. The aim of this study was to retrospectively analyze efficacy and toxicity of pazopanib in nccRCC patients.Records from advanced nccRCC patients (consecutive sample) treated with first-line pazopanib between 2010 and 2015 at 17 Italian centers were reviewed. Response rate, progression-free survival (PFS), and overall survival (OS) were evaluated. Univariate and descriptive analyses were performed.Thirty-seven patients with nccRCC were treated with first-line pazopanib; 51% had papillary histology, 24% chromophobe, 22% unclassified, and 3% had Xp11.2 translocation. Dose reductions/temporary interruptions for toxicity were required in 46% of cases. Grade (G) 3/4 toxicity was seen in 32%, G1/2 in 89% of cases; 81% achieved disease control, with 10 partial responses (27%) and 20 cases of stable disease (54%); 16% of patients had disease progression as best response. Median PFS and OS were 15.9 and 17.3 months, respectively. In univariate analysis, nephrectomy (P = .020), Memorial Sloan Kettering Cancer Center (MSKCC) score (P < .001), basal neutrophil/lymphocyte ratio (NLR; P = .009) and performance status (PS) (P = .001) were associated with PFS; MSKCC score (P < .001), International Metastatic Renal Cell Carcinoma Database Consortium score (P = .003), PS (P < .0001), nephrectomy (P = .002), histology (P = .035), dose reductions/interruptions (P = .039), best response to treatment (P < .001), and NLR (P = .008) were associated with OS.In nccRCC patients, treatment with pazopanib was effective and feasible; dose reductions required for toxicity were similar as expected in ccRCC.