Building Evidence for Ablative Internal Radiation Therapy in Localized HCC Beyond the Up-To-7 Criteria
Building Evidence for Ablative Internal Radiation Therapy Using Yttrium-90 Glass Microspheres in Localized Hepatocellular Carcinoma Beyond the Up-To-7 Criteria
Seoul National University Hospital
100 participants
Mar 11, 2025
INTERVENTIONAL
Conditions
Summary
At four major centers in Korea, patients with hepatocellular carcinoma (HCC) that exceed the up-to-7 criteria yet remain locally confined will undergo ablative radioembolization using Yttrium-90 glass microspheres, guided by a standardized dosimetry method. Their treatment response, survival outcomes, and adverse events will be monitored for two years following the procedure.
Eligibility
Plain Language Summary
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Interventions
The multicompartment MIRD model (a.k.a. partition model) based on diagnostic CT/MRI and 99mTc-MAA SPECT-CT will be used to plan a targeted dose of 700 Gy (± 50%) to the tumor. Given the high tumor burden, a scheduled second radioembolization within 120 days from the initial treatment will be permitted at the discretion of the operators provided the cumulative lung dose remains below 50 Gy. A scheduled second radioembolization may be considered when the largest tumor diameter exceeds 8 cm, or the estimated lung dose reaches 30 Gy while the tumor absorbed dose remains below the target dose of 700 Gy. The radioactive microsphere delivery device used will be glass-based (TheraSphere; Boston Scientific, MA, USA), in which Y90 is an integral constituent of the biocompatible glass matrix. Dosimetry planning will be made by personalized dosimetry software (Simplicit90y; Boston Scientific).
Locations(4)
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NCT06773845