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Defining the Ablative Dose for Y-90 TARE (MARGIN)

10 de septiembre de 2026 actualizado por: Andrew Gordon, Northwestern University

A Prospective Dose-Escalation Study to Define an Ablative Dose of Yttrium-90 Transarterial Radioembolization Using Advanced Dosimetry and Functional MRI (MARGIN Study)

This study is being done to help doctors improve how they treat liver tumors that cannot be removed by surgery or treated with standard ablation techniques. The researchers want to find out the best amount of radiation that needs to be delivered to completely destroy (or ablate) parts of the liver that have cancer.

Descripción general del estudio

Descripción detallada

Currently, doctors use Yttrium-90 (Y90) radiation segmentectomy, a treatment that delivers tiny radioactive beads into the blood vessels feeding the liver tumor. These beads give off radiation that helps kill the cancer cells from the inside, right where the tumor is located. This approach allows doctors to target the tumor very precisely, while keeping the rest of the liver as healthy as possible. However, the exact dose needed to fully ablate a tumor without damaging healthy liver tissue is not well established.

To answer this, the study team will use specialized imaging before and after treatment to evaluate how the radiation is distributed in the liver and how the liver responds over time. These imaging procedures include PET/CT or PET/MRI scans, which are standard medical imaging tests that are not considered experimental. During these scans, a small amount of a safe radioactive substance is injected into a participant's vein. This helps show where the Y90 beads are located in the participant's liver.

In a PET/CT scan, two types of imaging are performed during the same session. The PET scan detects signals from the radioactive substance and shows how the participant's liver is functioning at a molecular level. The CT scan, which uses x-rays to create detailed cross-sectional images of the body, provides a precise anatomical map that helps localize these functional signals. Together, they give a clear picture of both the structure and activity within the liver.

PET/MRI works similarly but uses magnetic fields and radio waves instead of x-rays. It combines the functional information from the PET scan with the highly detailed soft-tissue images from MRI, which can be especially useful in evaluating the liver. Both imaging techniques are done during a single visit, with the PET component typically performed at the same time as the CT or MRI, depending on which machine is used. Participants will also undergo a liver MRI with dual contrast using Eovist and extracellular gadolinium, another standard imaging procedure. MRI uses magnets and radio waves to take detailed pictures of the liver. Eovist is a special dye injected into a participant's vein during the scan that helps highlight liver tissue and shows how well different parts of the liver are functioning. Extracellular gadolinium is a more general contrast agent that enhances blood vessels and tissues, providing complementary information. This imaging helps the doctors confirm whether the tumor area was completely treated.

The goal is to determine the safest and most effective dose of radiation to fully treat cancer while preserving healthy liver tissue. This information may help doctors treat future patients more precisely and safely.

Yttrium-90 and the imaging methods used in this study, including PET/CT, PET/MRI, and dual contrast MRI, are FDA-approved.

Tipo de estudio

Intervencionista

Inscripción (Estimado)

30

Fase

  • Fase 2

Contactos y Ubicaciones

Esta sección proporciona los datos de contacto de quienes realizan el estudio e información sobre dónde se lleva a cabo este estudio.

Estudio Contacto

  • Nombre: Andrew C Gordon, MD, PhD
  • Número de teléfono: (561)703-0134
  • Correo electrónico: andrew.gordon@nm.org

Copia de seguridad de contactos de estudio

Ubicaciones de estudio

    • Illinois
      • Chicago, Illinois, Estados Unidos, 60611
        • Reclutamiento
        • Northwestern University
        • Contacto:
          • Andrew C Gordon, MD, PhD
          • Número de teléfono: (561)703-0134
          • Correo electrónico: andrew.gordon@nm.org
        • Investigador principal:
          • Andrew C Gordon, MD, PhD
        • Sub-Investigador:
          • Robert J Lewandowski, MD, FSIR
        • Sub-Investigador:
          • Amir A Borhani, MD
        • Sub-Investigador:
          • Saad E Abu Zahra, MD
        • Contacto:

Criterios de participación

Los investigadores buscan personas que se ajusten a una determinada descripción, denominada criterio de elegibilidad. Algunos ejemplos de estos criterios son el estado de salud general de una persona o tratamientos previos.

Criterio de elegibilidad

Edades elegibles para estudiar

  • Adulto
  • Adulto Mayor

Acepta Voluntarios Saludables

No

Descripción

Inclusion Criteria:

  • Diagnosis of hepatocellular carcinoma (HCC), cholangiocarcinoma, or liver-dominant metastatic disease not amenable to surgical resection or ablation.
  • Age ≥18 years.
  • Child-Pugh class A or B liver function
  • Eastern Cooperative Oncology Group (ECOG) performance status of 0-2.
  • Adequate organ and bone marrow function as defined below:
  • Leukocytes (WBC) ≥ 3,000/mcL
  • Absolute neutrophil count (ANC) ≥ 1,500/mcL
  • Hemoglobin ≥ 9 g/dL
  • Platelets ≥ 50,000/mcL
  • Total bilirubin ≤ 3.0 mg/dL
  • AST ≤ 100 U/L, ALT ≤ 120 U/L
  • Creatinine ≤ 2.0 mg/dL or estimated GFR ≥ 40 mL/min/1.73 m²
  • Ability to undergo imaging and laboratory evaluations required by the study.
  • Ability to understand and willingness to sign a written informed consent document.

Exclusion Criteria:

  • Extrahepatic metastases.
  • Pregnant or breastfeeding individuals.
  • Tumors requiring treatment of more than two Couinaud segments.
  • Known hypersensitivity to gadolinium-based contrast agents.
  • Contraindications to MRI (e.g., incompatible pacemakers, claustrophobia unresponsive to sedation).
  • Coagulopathy or clinical instability precluding angiographic intervention.
  • Prisoners or individuals under legal custody.
  • Adults unable to consent.
  • Individuals under 18 years of age.

Plan de estudios

Esta sección proporciona detalles del plan de estudio, incluido cómo está diseñado el estudio y qué mide el estudio.

¿Cómo está diseñado el estudio?

Detalles de diseño

  • Propósito principal: Tratamiento
  • Asignación: No aleatorizado
  • Modelo Intervencionista: Asignación paralela
  • Enmascaramiento: Ninguno (etiqueta abierta)

Armas e Intervenciones

Grupo de participantes/brazo
Intervención / Tratamiento
Comparador activo: Cirrhotic
Cirrhotic patients will begin at 300 Gy. Dose escalation will proceed in 100 Gy increments within each arm, with safety continuously evaluated by the Data Safety Monitoring Committee
The objective of this study is to define an optimal "ablative dose" range for Y90 Radiation Segmentectomy that achieves complete sectoral ablation detectable on dual contrast MRI and to determine whether this dose-response relationship differs between cirrhotic and non-cirrhotic patients.
Comparador activo: Non-cirrhotic
Non-cirrhotic patients will begin at a dose of 200 Gy. Dose escalation will proceed in 100 Gy increments within each arm, with safety continuously evaluated by the Data Safety Monitoring Committee.
The objective of this study is to define an optimal "ablative dose" range for Y90 Radiation Segmentectomy that achieves complete sectoral ablation detectable on dual contrast MRI and to determine whether this dose-response relationship differs between cirrhotic and non-cirrhotic patients.

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Ablative Dose Threshold for Y90 Radiation Segmentectomy
Periodo de tiempo: From enrollment to the end of post-treatment Y90 12 month follow up visit
To prospectively define the "ablative dose" threshold for Y90 Radiation Segmentectomy (RS) using post-treatment PET dosimetry and hepatobiliary phase MRI
From enrollment to the end of post-treatment Y90 12 month follow up visit
Impact of Cirrhosis on Ablative Dose Requirements
Periodo de tiempo: From enrollment to enrollment to post-treatment Y-90 12 month follow-up visit
To determine whether cirrhotic patients require a higher threshold dose for ablation compared to non- cirrhotic patients
From enrollment to enrollment to post-treatment Y-90 12 month follow-up visit

Medidas de resultado secundarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Correlation of Y90 Dose with Imaging Biomarkers
Periodo de tiempo: Assessed at 1, 4-9, and 12 month follow up visits
To evaluate the correlation between delivered Y90 dose and imaging biomarkers, including signal loss on hepatobiliary phase MRI, ablative margins, extracellular volume fraction, and perfusion changes
Assessed at 1, 4-9, and 12 month follow up visits
Tumor Response and Time-to-Progression Assessment
Periodo de tiempo: From enrollment to end of post-treatment Y-90 12 month follow up visit
To assess tumor response by mRECIST and determine time to progression (TTP)
From enrollment to end of post-treatment Y-90 12 month follow up visit
Safety and Tolerability of Escalating Y90 Doses
Periodo de tiempo: From enrollment to end of post-treatment Y90 12 month follow up visit
To assess the safety and tolerability of escalating segmental Y90 doses (200- 500 Gy) using Bayesian optimal interval (BOIN) dose-escalation design under Data and Safety Monitoring Committee (DSMC) oversight
From enrollment to end of post-treatment Y90 12 month follow up visit

Otras medidas de resultado

Medida de resultado
Medida Descripción
Periodo de tiempo
Pathologic Necrosis in Explanted Tumors
Periodo de tiempo: From enrollment to end of post-treatment Y90 12 month follow-up visit
To evaluate complete pathological necrosis in explanted tumors from patients who undergo liver resection or transplantation
From enrollment to end of post-treatment Y90 12 month follow-up visit
Early Imaging Biomarkers for Ablation Success
Periodo de tiempo: From enrollment to post-treatment Y90 12 month follow-up visit
To identify novel early imaging biomarkers (Eovist hepatobiliary phase defects, extracellular volume mapping, perfusion changes) that may serve as surrogates for ablation success
From enrollment to post-treatment Y90 12 month follow-up visit

Colaboradores e Investigadores

Aquí es donde encontrará personas y organizaciones involucradas en este estudio.

Publicaciones y enlaces útiles

La persona responsable de ingresar información sobre el estudio proporciona voluntariamente estas publicaciones. Estos pueden ser sobre cualquier cosa relacionada con el estudio.

Publicaciones Generales

Fechas de registro del estudio

Estas fechas rastrean el progreso del registro del estudio y los envíos de resultados resumidos a ClinicalTrials.gov. Los registros del estudio y los resultados informados son revisados ​​por la Biblioteca Nacional de Medicina (NLM) para asegurarse de que cumplan con los estándares de control de calidad específicos antes de publicarlos en el sitio web público.

Fechas importantes del estudio

Inicio del estudio (Actual)

15 de mayo de 2026

Finalización primaria (Estimado)

1 de febrero de 2029

Finalización del estudio (Estimado)

1 de mayo de 2029

Fechas de registro del estudio

Enviado por primera vez

7 de mayo de 2026

Primero enviado que cumplió con los criterios de control de calidad

7 de mayo de 2026

Publicado por primera vez (Actual)

14 de mayo de 2026

Actualizaciones de registros de estudio

Última actualización publicada (Actual)

15 de septiembre de 2026

Última actualización enviada que cumplió con los criterios de control de calidad

10 de septiembre de 2026

Última verificación

1 de mayo de 2026

Más información

Términos relacionados con este estudio

Plan de datos de participantes individuales (IPD)

¿Planea compartir datos de participantes individuales (IPD)?

NO

Información sobre medicamentos y dispositivos, documentos del estudio

Estudia un producto farmacéutico regulado por la FDA de EE. UU.

No

Estudia un producto de dispositivo regulado por la FDA de EE. UU.

No

Esta información se obtuvo directamente del sitio web clinicaltrials.gov sin cambios. Si tiene alguna solicitud para cambiar, eliminar o actualizar los detalles de su estudio, comuníquese con register@clinicaltrials.gov. Tan pronto como se implemente un cambio en clinicaltrials.gov, también se actualizará automáticamente en nuestro sitio web. .

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