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Review
. 2006 Jan-Feb;17(1):19-25.
doi: 10.1016/j.tem.2005.11.005. Epub 2005 Nov 28.

Staging and treatment of differentiated thyroid carcinoma with radiolabeled somatostatin analogs

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Review

Staging and treatment of differentiated thyroid carcinoma with radiolabeled somatostatin analogs

Jaap J M Teunissen et al. Trends Endocrinol Metab. 2006 Jan-Feb.

Abstract

In patients with progressive metastatic (or recurrent) differentiated thyroid carcinoma that either do not take up radioiodine or are unresponsive to continued radioiodine therapy, staging is difficult and treatment options are few. However, in most of these patients uptake of radiolabeled somatostatin analogs is evident on somatostatin-receptor scintigraphy (SRS). Using SRS, patients with sufficient uptake of radiolabeled somatostatin analogs can be selected for high-dose peptide receptor radionuclide therapy (PRRT) as an alternative targeted-treatment option. PRRT with the beta-particle-emitting radionuclides (90)yttrium ((90)Y) and (177)lutetium ((177)Lu) gives the best results in terms of objective tumor response. Promising, novel, radiolabeled somatostatin analogs that have a broader receptor affinity profile and, thus, a potentially wider therapeutic range are being tested clinically.

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