Ablative radioembolization for large liver tumors
Official title: An Open-label, Single-arm, Single-center Clinical Trial to Evaluate the Efficacy and Safety of Yttrium-90 Ablative Radioembolization (Radiation Major Hepatectomy) for Unifocal Large Hepatocellular Carcinoma
Run by Seoul National University Hospital · NCT06178198 · Data updated 2026-11-12
This study is testing a new treatment using tiny radioactive beads to see if it can safely shrink large liver tumors in people with good liver function and no previous liver cancer treatments.
Quick facts
| Phase | Phase 2 |
|---|---|
| Study type | Interventional |
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 30 (estimated) |
| Sponsor | Seoul National University Hospital Academic / other |
| Drugs / interventions | immunotherapy |
| Locations | 1 site (Seoul, Seoul) |
| Status | Recruiting |
| Started | November 8, 2023 |
| Main results expected | November 30, 2026 |
| Study ends | November 30, 2026 |
| Registry record updated | August 20, 2026 |
| Trial ID | NCT06178198 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are adults aged 18 and over with large hepatocellular carcinoma and good liver function, without prior treatments.
✕Probably not a fit
Patients with extrahepatic metastasis, vascular invasion, or those with poor liver function may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This clinical trial evaluates the safety and efficacy of ablative radioembolization using Yttrium-90 resin microspheres in patients with large hepatocellular carcinoma greater than 8 cm. The study aims to deliver an ablative dose to the tumors while preserving healthy liver tissue, potentially serving as a curative treatment or a bridge to surgery. Participants will be monitored for efficacy and safety over a two-year period. The trial focuses on patients with good liver function and no prior treatments for liver cancer.
Why it matters
Potential benefit: If successful, this treatment could provide a curative option for patients with large hepatocellular carcinoma while preserving liver function.
How similar studies have gone: Other studies have shown promising results with similar radioembolization approaches, indicating potential for success.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: 1. Adults aged 18 and over. 2. Patients diagnosed with hepatocellular carcinoma histologically and/or radiologically (LI-RADS 4 or 5). 3. Patients with no more than five lesions in dynamic contrast-enhanced CT or MRI, and the largest tumor diameter exceeding 8 cm. 4. Patients without vascular invasion and bile duct invasion in dynamic contrast-enhanced CT or MRI. 5. Patients with no extrahepatic metastasis in lung CT and contrast-enhanced abdominal CT or MRI. 6. Patients with no prior treatment for liver cancer. 7. Child-Pugh class A. 8. ECOG performance status of 1 or less. 9. Patients with no major organ dysfunction according to blood tests performed within one month of study enrollment. 1. Leukocytes ≥ 2,500/µL and ≤ 12,000/µL 2. Absolute neutrophil count ≥ 1,500 /mm\^3 3. Hemoglobin ≥ 8.0 g/dL (transfusion allowed to meet this criterion) 4. Total bilirubin ≤ 3.0 mg/dL 5. Platelet ≥ 50,000/µL 6. INR ≤ 2.0 for patients not taking anticoagulants 7. AST ≤ 200 IU/L (i.e., ≤ 5X upper normal limit) 8. ALT ≤ 200 IU/L (i.e., ≤ 5X upper normal limit) 9. ALP ≤ 575 IU/L (i.e., ≤ 5X upper normal limit) 10. Creatinine ≤ 2.0 mg/dL 10. Patients with a life expectancy of more than 3 months. 11. Patients who have adequately understood the clinical trial and consented in writing. 12. Non-pregnant women of childbearing potential. Exclusion Criteria: 1. Patients who are not suitable for ablative radioembolization as indicated by pre-treatment testing with macro-aggregated albumin labeled with technetium-99 (99mTc-MAA) for radioembolization. 1. Cases where the estimated lung dose exceeds 15 Gy when 150 Gy of absorbed dose is administered to the tumor based on the partition method. 2. Cases with severe hepatic artery-portal vein shunting that might lead to irradiation of the non-tumorous liver segments. 2. Patients whose volume of non-tumorous liver not included in the treatment area is less than 30% of the total non-tumorous liver volume. 3. Patients scheduled to use immunotherapy irrespective of the response to radioembolization. 4. Patients who have had active cancer within the last two years prior to the clinical trial participation. 5. Patients who have undergone surgery or procedures related to the bile duct. 6. Women who are pregnant or breastfeeding.
Where it's running
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Seoul National University Hospital
Seoul, Seoul, South Korea Recruiting
Study contacts
- Study coordinator: Jin Woo Choi, MD, PhD
- Email: jwchoi.med@snu.ac.kr
- Phone: +82-220722584
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.