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Continuing Education
Available online 4 June 2024
Radio theranostics in paragangliomas and pheochromocytomas
Radioteragnosis en paragangliomas y feocromocitomas
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6
Stefan Prado Wohlwenda,b,
Corresponding author
prado_ste@gva.es

Corresponding author.
, Pilar Bello Arquesa,b, on behalf of the SEMNIM Endocrinology Working Group
a Servicio de Medicina Nuclear, Hospital Universitario y Politécnico La Fe, Valencia, Spain
b Clinical Center of Excellence Pheo Para Alliance
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Received 19 April 2024. Accepted 01 May 2024
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Table 1. Localization and risk of metastasis of the principle genetic mutations: frequent localization 30%–100%, infrequent localization <10%–30%. Shaded boxes correspond to localizations or risk of metastasis not described in the literature. Adapted from Taïeb et al.1
Table 2. Functional imaging studies applied in PPGLs.
Table 3. Characteristics of the two therapeutic options with radioligands in PPGLs.
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Abstract

This continuing education aims to present in a clear and easy-to-understand manner the biology of paragangliomas and pheochromocytomas (PPGLs), the functional imaging studies available for their diagnosis and therapeutic planning, the requirements necessary to administer radioligand therapy (RLT) and the characteristics of these treatments (inclusion criteria, administration protocols, adverse effects and future perspectives).

In this pathology we have two RLT options: [131I]MIBG and [177Lu]Lu-DOTA-TATE. The indication for treatment is determined by the expression of its therapeutic target in functional imaging studies, allowing precision and personalized medicine.

Although most of the results we have for both treatments have as origin small retrospective series, RLT is presented as a safe and well-tolerated therapeutic option in PPGLs with slow-moderate progression or with uncontrollable symptoms, obtaining high disease control rates.

Keywords:
Paraganglioma
Pheochromocytoma
Theranostics
[177Lu]Lu-DOTA-TATE
[131I]MIBG
Resumen

Esta formación pretende presentar de forma clara y de fácil comprensión la biología de los paragangliomas y feocromocitomas (PPGLs), los estudios de imagen funcional disponibles para su diagnóstico y planificación terapéutica, los requisitos necesarios para administrar la terapia con radioligandos (TRL) y las características de estos tratamientos (criterios de inclusión, protocolos de administración, efectos adversos y perspectivas de futuro).

En esta patología disponemos de dos TRL: [131I]MIBG y [177Lu]Lu-DOTA-TATE. La indicación del tratamiento la determina la expresión de su diana terapéutica en los estudios de imagen funcional, permitiendo una medicina de precisión y personalizada.

Aunque en su mayor parte los resultados de los que disponemos en ambos tratamientos provienen de pequeñas series retrospectivas, la TRL se presenta como una opción terapéutica segura y bien tolerada en PPGLs con progresión lenta-moderada o sintomáticos obteniendo elevadas tasas de control de enfermedad.

Palabras clave:
Paraganglioma
Feocromocitoma
Teragnosis
[177Lu]Lu-DOTA-TATE
[131I]MIBG

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