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Original Article
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Volume 356:115-124 January 11, 2007 Number 2
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Sunitinib versus Interferon Alfa in Metastatic Renal-Cell Carcinoma
Robert J. Motzer, M.D., Thomas E. Hutson, D.O., Pharm.D., Piotr Tomczak, M.D., M. Dror Michaelson, M.D., Ph.D., Ronald M. Bukowski, M.D., Olivier Rixe, M.D., Ph.D., Stéphane Oudard, M.D., Ph.D., Sylvie Negrier, M.D., Ph.D., Cezary Szczylik, M.D., Ph.D., Sindy T. Kim, B.S., Isan Chen, M.D., Paul W. Bycott, Dr.P.H., Charles M. Baum, M.D., Ph.D., and Robert A. Figlin, M.D.

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ABSTRACT

Background Since sunitinib malate has shown activity in two uncontrolled studies in patients with metastatic renal-cell carcinoma, a comparison of the drug with interferon alfa in a phase 3 trial is warranted.

Methods We enrolled 750 patients with previously untreated, metastatic renal-cell carcinoma in a multicenter, randomized, phase 3 trial to receive either repeated 6-week cycles of sunitinib (at a dose of 50 mg given orally once daily for 4 weeks, followed by 2 weeks without treatment) or interferon alfa (at a dose of 9 MU given subcutaneously three times weekly). The primary end point was progression-free survival. Secondary end points included the objective response rate, overall survival, patient-reported outcomes, and safety.

Results The median progression-free survival was significantly longer in the sunitinib group (11 months) than in the interferon alfa group (5 months), corresponding to a hazard ratio of 0.42 (95% confidence interval, 0.32 to 0.54; P<0.001). Sunitinib was also associated with a higher objective response rate than was interferon alfa (31% vs. 6%, P<0.001). The proportion of patients with grade 3 or 4 treatment-related fatigue was significantly higher in the group treated with interferon alfa, whereas diarrhea was more frequent in the sunitinib group (P<0.05). Patients in the sunitinib group reported a significantly better quality of life than did patients in the interferon alfa group (P<0.001).

Conclusions Progression-free survival was longer and response rates were higher in patients with metastatic renal-cell cancer who received sunitinib than in those receiving interferon alfa (ClinicalTrials.gov numbers, NCT00098657 [ClinicalTrials.gov] and NCT00083889 [ClinicalTrials.gov] ).


Source Information

From the Memorial Sloan-Kettering Cancer Center, New York (R.J.M.); Baylor Sammons Cancer Center–Texas Oncology, Dallas (T.E.H.); Klinika Onkologii Oddzial Chemioterapii, Poznan, Poland (P.T.); Massachusetts General Hospital Cancer Center, Boston (M.D.M.); Cleveland Clinic Foundation, Cleveland (R.M.B.); Hôpital Pitié–Salpêtrière (O.R.) and Hôpital Européen Georges Pompidou (S.O.) — both in Paris; Centre Léon Bérard, Lyon, France (S.N.); Military Institute of Medicine, Warsaw, Poland (C.S.); Pfizer Global Research and Development, La Jolla, CA (S.T.K., I.C., P.W.B., C.M.B.); and City of Hope Comprehensive Cancer Center, Los Angeles (R.A.F.).

Address reprint requests to Dr. Motzer at the Memorial Sloan-Kettering Cancer Center, 1275 York Ave., New York, NY 10021, or at motzerr{at}mskcc.org.

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Related Letters:

Sunitinib and Hypothyroidism
Wolter P., Dumez H., Schöffski P., Motzer R. J.
Extract | Full Text | PDF  
N Engl J Med 2007; 356:1580-1581, Apr 12, 2007. Correspondence

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