Efficacy and safety of lenvatinib and pembrolizumab as first-line treatment for advanced renal cell carcinoma patients: real-world experience in Japan.
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Abstract
Background: Combined treatment with lenvatinib and pembrolizumab is currently regarded as one of the standard first-line therapies for advanced renal cell carcinoma (aRCC) patients. The objective of this study was to assess the efficacy and safety of this combined regimen in treatment-naïve Japanese aRCC patients.
Methods: This study included a total of 50 consecutive aRCC patients receiving combined lenvatinib plus pembrolizumab in routine clinical practice in Japan, and comprehensively analyzed clinical outcomes of this treatment.
Results: Of these 50, 7 (14.0%), 23 (46.0%) and 20 (40.0%) were classified into favorable, intermediate and poor risk groups, respectively, according to the International Metastatic Renal Cell Carcinoma Database Consortium (IMDC) system. Responses to this combined therapy in the 50 patients were as follows: complete response, 7 (14.0%); partial response, 26 (52.0%); stable disease, 15 (30%) and progressive disease, 2 (4%); thus, the objective response rate (ORR) was 66%. ORRs in favorable, intermediate and poor risk groups were 57.1, 69.6 and 65.0%, respectively. During the observation period, disease progression and death occurred in 14 (28.0%) and 6 (12.0%) patients, respectively, and neither the median PFS nor OS was reached. Adverse events and those corresponding to grade ≥ 3 were observed in all (100%) and 33 (66.0%) patients, respectively.
Conclusions: To our knowledge, this is the first study focusing on real-world outcomes of lenvatinib and pembrolizumab for treatment-naïve aRCC patients, showing that the efficacy and safety of this combined regimen are similar to those noted in randomized clinical trial.
期刊介绍：
The International Journal of Clinical Oncology (IJCO) welcomes original research papers on all aspects of clinical oncology that report the results of novel and timely investigations. Reports on clinical trials are encouraged. Experimental studies will also be accepted if they have obvious relevance to clinical oncology. Membership in the Japan Society of Clinical Oncology is not a prerequisite for submission to the journal. Papers are received on the understanding that: their contents have not been published in whole or in part elsewhere; that they are subject to peer review by at least two referees and the Editors, and to editorial revision of the language and contents; and that the Editors are responsible for their acceptance, rejection, and order of publication.
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