Use of 177Lu-dotatate in the treatment of iodine refractory thyroid carcinomas
In a patient with a differentiated thyroid cancer the standard treatment protocol to be followed is surgery, ablation of thyroid remnants with 131Iodine (131I), and TSH suppression. However, the treatment with 131I is not effective in some cases, and it no longer becomes a therapeutic option due to...
Saved in:
Published in | Revista Española de medicina nuclear e imagen molecular (English ed.) Vol. 36; no. 2; pp. 116 - 119 |
---|---|
Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
Elsevier España, S.L.U
01.03.2017
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | In a patient with a differentiated thyroid cancer the standard treatment protocol to be followed is surgery, ablation of thyroid remnants with 131Iodine (131I), and TSH suppression. However, the treatment with 131I is not effective in some cases, and it no longer becomes a therapeutic option due to cell de-differentiation with loss of 131I uptake. Systemic treatment can be used as other options, although patients are not always responsive; thus, the disease may progress and therapeutic options may run out.
Endocrine tumors may express somatostatin receptors,and this characteristic has been used, not only for diagnosis, but also for their treatment through somatostatin analog labeling with radioactive isotopes. This was the case of a patient suffering from iodine-refractory follicular thyroid carcinoma, with somatostatin receptors expression, treated with 177Lu-DOTATATE, showing an excellent clinical and analytical response.
Ante un paciente con cáncer diferenciado de tiroides, el protocolo de tratamiento estándar a seguir es cirugía, ablación con 131Iodo (131I) de restos tiroideos y supresión de TSH. Pero en algunos casos, el tratamiento con 131I no es efectivo y deja de ser una opción terapéutica debido a la desdiferenciación celular con pérdida de la captación de 131I. Como otras opciones, se puede recurrir a tratamiento sistémico, si bien los pacientes no siempre son respondedores, pudiendo progresar la enfermedad y quedando sin opciones terapéuticas.
Los tumores endocrinos pueden expresar receptores de la somatostatina, lo que se ha utilizado tanto para el diagnóstico como para su tratamiento mediante el marcaje de los análogos de la somatostatina con isótopos radiactivos. Presentamos el caso de una paciente con carcinoma folicular de tiroides yodorrefractario, con expresión de receptores de la somatostatina, tratada con 177Lu-DOTATATE, con excelente respuesta clínica y analítica. |
---|---|
ISSN: | 2253-8089 2253-8089 |
DOI: | 10.1016/j.remnie.2016.11.007 |