TY - JOUR
T1 - The Evolution of Nephrectomy and Patient Characteristics in Metastatic Renal Cell Carcinoma Patients Enrolled Into First-Line Tyrosine Kinase Inhibitors Clinical Trials
AU - Sella, Avishay
AU - Wang, Kongming
AU - Sella, Tal
N1 - Publisher Copyright:
© 2016 Elsevier Inc.
PY - 2016/10/1
Y1 - 2016/10/1
N2 - The role of nephrectomy in metastatic renal cell carcinoma during the tyrosine kinase inhibitor era is undetermined. Retrospective assessment of patients with metastatic renal cell carcinoma (n = 6074) found that, post-2007, nephrectomy use has declined, and more patients with worse prognosis are participating in first-line tyrosine kinase inhibitor trials; however, response rates are higher. This should be considered in trial design and outcome interpretation. Introduction The objective of this study was to compare rates of nephrectomy (Nx) in, and characteristics of, patients with metastatic renal cell carcinoma (mRCC) enrolled in prospective clinical trials of tyrosine kinase inhibitors (TKIs) that were completed through (Group 1) versus after (Group 2) 2007. Patients and Methods Searching online databases, we retrospectively identified phase I to III trials with ≥ 15 patients with mRCC treated with first-line TKIs, alone or in combination with other agent(s). Results Of 70 trials identified, 42 were included in the analysis (n = 6074 patients). Compared with Group 1, Group 2 patients had significantly less Nx (85.7% vs. 93.7%; P < .001) and prior cytokine therapy (11.1% vs. 46.8%; P < .001). Group 2 also had significantly fewer patients with good prognostic risk (based on Memorial Sloan-Kettering Cancer Center criteria) or performance status (both P < .001). Group 2 patients had a significantly greater objective response rate than Group 1 patients (intent-to-treat analysis: 28.6% vs. 23.1%, respectively; P < .001), whereas Group 1 patients had significantly more stable disease. Clinical benefit was similar in both groups (P = .157), and the means of median progression-free survival were comparable (8.2 and 9.0 months in Groups 1 and 2, respectively; P = .2528). Conclusions Use of Nx in mRCC patients participating in clinical trials has declined in the TKI era. More patients with worse prognostic risk profiles are participating in first-line TKI trials after 2007, but objective response rates are higher. Despite patient characteristics that favor the earlier group, progression-free survival is similar as TKIs have replaced cytokines as first-line therapy.
AB - The role of nephrectomy in metastatic renal cell carcinoma during the tyrosine kinase inhibitor era is undetermined. Retrospective assessment of patients with metastatic renal cell carcinoma (n = 6074) found that, post-2007, nephrectomy use has declined, and more patients with worse prognosis are participating in first-line tyrosine kinase inhibitor trials; however, response rates are higher. This should be considered in trial design and outcome interpretation. Introduction The objective of this study was to compare rates of nephrectomy (Nx) in, and characteristics of, patients with metastatic renal cell carcinoma (mRCC) enrolled in prospective clinical trials of tyrosine kinase inhibitors (TKIs) that were completed through (Group 1) versus after (Group 2) 2007. Patients and Methods Searching online databases, we retrospectively identified phase I to III trials with ≥ 15 patients with mRCC treated with first-line TKIs, alone or in combination with other agent(s). Results Of 70 trials identified, 42 were included in the analysis (n = 6074 patients). Compared with Group 1, Group 2 patients had significantly less Nx (85.7% vs. 93.7%; P < .001) and prior cytokine therapy (11.1% vs. 46.8%; P < .001). Group 2 also had significantly fewer patients with good prognostic risk (based on Memorial Sloan-Kettering Cancer Center criteria) or performance status (both P < .001). Group 2 patients had a significantly greater objective response rate than Group 1 patients (intent-to-treat analysis: 28.6% vs. 23.1%, respectively; P < .001), whereas Group 1 patients had significantly more stable disease. Clinical benefit was similar in both groups (P = .157), and the means of median progression-free survival were comparable (8.2 and 9.0 months in Groups 1 and 2, respectively; P = .2528). Conclusions Use of Nx in mRCC patients participating in clinical trials has declined in the TKI era. More patients with worse prognostic risk profiles are participating in first-line TKI trials after 2007, but objective response rates are higher. Despite patient characteristics that favor the earlier group, progression-free survival is similar as TKIs have replaced cytokines as first-line therapy.
KW - Characterictics
KW - Prognostic
KW - Renal cell cancer
KW - Surgery
KW - Targeted agents
UR - http://www.scopus.com/inward/record.url?scp=84963733947&partnerID=8YFLogxK
U2 - 10.1016/j.clgc.2016.03.001
DO - 10.1016/j.clgc.2016.03.001
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C2 - 27105724
AN - SCOPUS:84963733947
SN - 1558-7673
VL - 14
SP - 415
EP - 419
JO - Clinical Genitourinary Cancer
JF - Clinical Genitourinary Cancer
IS - 5
ER -