Role of Salvage Targeted Therapy in Differentiated Thyroid Cancer Patients Who Failed First-Line Sorafenib
Journal Title: | The journal of clinical endocrinology and metabolism 2014-06, Vol.99 (6), p.2086-2094 |
Main Author: | Dadu, Ramona |
Other Authors: | Devine, Catherine , Hernandez, Mike , Waguespack, Steven G , Busaidy, Naifa L , Hu, Mimi I , Jimenez, Camilo , Habra, Mouhammad A , Sellin, Rena V , Ying, Anita K , Cote, Gilbert J , Sherman, Steven I , Cabanillas, Maria E |
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Publisher: | United States: Endocrine Society |
ID: | ISSN: 0021-972X |
Link: | https://www.ncbi.nlm.nih.gov/pubmed/24628550 |
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recordid: | cdi_pubmedcentral_primary_oai_pubmedcentral_nih_gov_4037722 |
title: | Role of Salvage Targeted Therapy in Differentiated Thyroid Cancer Patients Who Failed First-Line Sorafenib |
format: | Article |
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ispartof: | The journal of clinical endocrinology and metabolism, 2014-06, Vol.99 (6), p.2086-2094 |
description: | Context: Sorafenib, a tyrosine kinase inhibitor, is a common first-line therapy for advanced differentiated thyroid cancer (DTC). However, responses are not durable and drug toxicity remains a problem. Objective: The objective of the study was to determine the efficacy of salvage therapy after first-line sorafenib failure. Design: This was a retrospective review at M. D. Anderson Cancer Center from January 2005 to May 2013. Patients: The study included patients with metastatic DTC who received salvage therapy after their initial sorafenib failure (group 2). Patients who received first-line sorafenib only (group 1) were evaluated for comparison of overall survival (OS). Outcome Measures: Progression-free survival, best response, and median OS were measured. Results: Sixty-four patients with metastatic, radioactive iodine refractory DTC were included; 35 were in group 1 and 25 were in group 2, and the groups were well balanced. Median OS of all 64 patients receiving first line sorafenib was 37 months; median OS was significantly longer with salvage therapy compared with sorafenib alone (58 vs 28 months, P = .013). In group 2, 17 patients were evaluable for best response, although two patients had toxicity with sorafenib, which was discontinued before restaging. Best responses with first-line sorafenib were partial response in 2 of 15 (13%), stable disease in 10 of 15 (67%), and progressive disease in 3 of 15 (20%) patients. With salvage therapy, partial responses were seen in 7 of 17 (41%) and stable disease in 10 of 17 (59%) patients. Median progression-free survival was 7.4 months with first-line sorafenib and 11.4 months with salvage therapy. Salvage therapy included sunitinib (n = 4), pazopanib (n = 3), cabozantinib (n = 4), lenvatinib (n = 3), and vemurafenib (n = 3). Conclusions: Other targeted agents are effective salvage treatments after sorafenib failure, despite similar mechanisms of action, and should be offered to patients who are able to receive salvage therapy. |
language: | eng |
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identifier: | ISSN: 0021-972X |
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