MR-Guided Laser Ablation of Hepatic Tumors


  • Study type

  • Study phase

  • Study IDs

  • Describes the nature of a clinical study. Types include:

    • Observational study — observes people and measures outcomes without affecting results.
    • Interventional study (clinical trial) — studies new tests, treatments, drugs, surgical procedures or devices.
    • Medical records research — uses historical information collected from medical records of large groups of people to study how diseases progress and which treatments and surgeries work best.
  • During the early phases (phases 1 and 2), researchers assess safety, side effects, optimal dosages and risks/benefits. In the later phase (phase 3), researchers study whether the treatment works better than the current standard therapy. They also compare the safety of the new treatment with that of current treatments. Phase 3 trials include large numbers of people to make sure that the result is valid. There are also less common very early (phase 0) and later (phase 4) phases. Phase 0 trials are small trials that help researchers decide if a new agent should be tested in a phase 1 trial. Phase 4 trials look at long-term safety and effectiveness, after a new treatment has been approved and is on the market.

  • Site IRB
    • Rochester, Minnesota: 09-000864
    NCT ID: NCT01630239
    Sponsor Protocol Number: 09-000864

About this study

This is a pilot study to investigate the performance of MR-guided Laser Induced Thermal Therapy (LITT) in the treatment of liver tumors.

Participation eligibility

Participant eligibility includes age, gender, type and stage of disease, and previous treatments or health concerns. Guidelines differ from study to study, and identify who can or cannot participate. If you need assistance understanding the eligibility criteria, please contact the study team.

See eligibility criteria

Inclusion Criteria:

  • Patients with soft tissue tumor metastases to the liver who are referred to Interventional Radiology for treatment.
  • Surgery is not a viable or desirable alternative therapy at the time of enrollment
  • Radiation therapy has failed or not indicated or can be safely postponed
  • Tumor size ≤ 5 cm at its largest diameter
  • Tumor position is not in the central liver hilum
  • Performance status is ECOG 2 or better in adults
  • Patient is able to undergo MRI

Exclusion Criteria:

  • Patients with pacemaker or defibrillator
  • Patients with metallic surgical clips close to the site of the intended ablation
  • Pregnant women
  • Patients with hilar liver lesions

Participating Mayo Clinic locations

Study statuses change often. Please contact us for help.

Mayo Clinic Location Status

Rochester, Minn.

Mayo Clinic principal investigator

David Woodrum, M.D., Ph.D.

Closed for enrollment


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