alexa Renal toxicity caused by brand-name versus generic cisplatin: a comparative analysis.


Journal of Kidney

Author(s): Niho S, Yamanaka T, Umemura S, Matsumoto S, Yoh K,

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Abstract OBJECTIVE: A generic cisplatin formulation has replaced the brand-name formulation since November 2003 in our hospital. We retrospectively assessed the renal toxicity caused by the brand-name and generic cisplatin formulations. METHODS: The medical records of patients with thoracic malignancy who were treated at our hospital between November 2000 and April 2008 were reviewed. In total, 1296 eligible patients received 80 mg/m(2) of cisplatin: 499 patients were treated with the brand-name cisplatin formulation before November 2003 (Group 1) and 797 patients were treated with the generic formulation after November 2003 (Group 2). We compared the maximum serum creatinine level after chemotherapy in the two groups. RESULTS: The patient characteristics, including age, sex and performance status, and pretreatment serum creatinine levels were well balanced between the two groups. More patients received four cycles of chemotherapy in Group 2 (P < 0.0001). The median (range) of the maximum serum creatinine levels during all the chemotherapy cycles were 1.1 (0.5-4.1) mg/dl and 1.1 (0.5-4.4) mg/dl in Groups 1 and 2, respectively (P = 0.0237). The incidence of grade 0 serum creatinine elevations decreased from 47\% to 39\%, while that of grade 1 serum creatinine elevations increased from 32\% to 41\% (P = 0.0094). The incidence rates of grade 2 or 3 serum creatinine elevations were similar (21 vs. 20\%). The time to serum creatinine elevation was also similar in Groups 1 and 2 (P = 0.161). CONCLUSION: Although grade 1 maximum serum creatinine level was more common in the generic cisplatin formulation group, this was attributed to the larger number of patients receiving four cycles of chemotherapy in this group. This article was published in Jpn J Clin Oncol and referenced in Journal of Kidney

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