期刊
HEAD AND NECK-JOURNAL FOR THE SCIENCES AND SPECIALTIES OF THE HEAD AND NECK
卷 41, 期 9, 页码 3023-3032出版社
WILEY
DOI: 10.1002/hed.25784
关键词
high tumor burden; lenvatinib; multitarget kinase inhibitors; radioiodine-refractory differentiated thyroid cancer; tumor growth parameters
Background Multitarget kinase inhibitors (m-TKI), including lenvatinib, are now available as treatment options for radioiodine-refractory differentiated thyroid cancer (RR-DTC). However, the optimal timing of treatment initiation with m-TKI in these patients remains to be defined. Methods We retrospectively reviewed the clinical records of 30 consecutive patients with RR-DTC. The relationship between clinical characteristics was evaluated, including tumor growth parameters at pretreatment/post-treatment and efficacy of lenvatinib. Results A total of 26 patients with RR-DTC treated with lenvatinib were evaluable for response and eligible for analysis. From the results of multivariate analysis, baseline tumor size and tumor-related symptoms were independent negative prognostic factors for overall survival (OS) and progression-free survival (PFS). Pretreatment tumor growth parameters were not prognostic for either PFS or OS. Conclusions Patients with RR-DTC with a high tumor burden and tumor-related symptoms had significantly worse prognosis. Greater tumor reduction after starting lenvatinib may lead to better prognosis, irrespective of pretreatment high tumor growth rate.
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