Evaluation of Efficacy, Safety of Vandetanib in Patients With Differentiated Thyroid Cancer

Exclusion Criteria

• •Inadequate organ function as defined by: (1) Alanine aminotransferase (ALT), aspartate aminotransferase (AST), or alkaline phosphatase (ALP) greater than 2.5\*upper limit of normal (ULN), or greater than 5.0\*ULN if judged by the Investigator to be related to liver metastases. (2) Serum bilirubin greater than 1.5\*ULN. This criterion does not apply to participants with known Gilbert's Disease. (3) Creatinine clearance \<50 mL/min (calculated by Cockcroft-Gault formula).
• •Risk of prolonged interval between Q and T (QT) on an electrocardiogram (ECG) corrected for heart rate (QTc) as defined by: (1) Current therapy with any medication known to be associated with Torsades de pointes or potent inducers of cytochrome CYP3A4. (2) History of QT prolongation. (3) Congenital long QT syndrome. (4) QT interval corrected for heart rate by the Bazett's method (QTcB) correction unmeasurable or greater than 480 ms on screening ECG.
• •Previous therapy with approved or investigational tyrosine kinase or anti- vascular endothelial growth factor (VEGF) receptor inhibitors or targeted therapies (e.g. multi-targeted kinase inhibitors such as sorafenib, AMG-706, sunitinib, pazopanib, lenvatinib).
• •RAI therapy within 12 weeks prior to first dose of study drug, and radiation therapy other than RAI, including external beam, if not completed prior to randomization.