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

10. september 2026 opdateret af: 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.

Studieoversigt

Detaljeret beskrivelse

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.

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

30

Fase

  • Fase 2

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Undersøgelse Kontakt Backup

Studiesteder

    • Illinois
      • Chicago, Illinois, Forenede Stater, 60611
        • Rekruttering
        • Northwestern University
        • Kontakt:
        • Ledende efterforsker:
          • Andrew C Gordon, MD, PhD
        • Underforsker:
          • Robert J Lewandowski, MD, FSIR
        • Underforsker:
          • Amir A Borhani, MD
        • Underforsker:
          • Saad E Abu Zahra, MD
        • Kontakt:

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

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  • Ældre voksen

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Beskrivelse

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.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Ikke-randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Aktiv komparator: 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.
Aktiv komparator: 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.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Ablative Dose Threshold for Y90 Radiation Segmentectomy
Tidsramme: 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
Tidsramme: 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

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Correlation of Y90 Dose with Imaging Biomarkers
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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

Andre resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Pathologic Necrosis in Explanted Tumors
Tidsramme: 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
Tidsramme: 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

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Generelle publikationer

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

15. maj 2026

Primær færdiggørelse (Anslået)

1. februar 2029

Studieafslutning (Anslået)

1. maj 2029

Datoer for studieregistrering

Først indsendt

7. maj 2026

Først indsendt, der opfyldte QC-kriterier

7. maj 2026

Først opslået (Faktiske)

14. maj 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

15. september 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

10. september 2026

Sidst verificeret

1. maj 2026

Mere information

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