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Hepatocellular CarcinomaNCT04844112

CT/MR-US Automatic Fusion System in Pre-procedure Planning for Radiofrequency Ablation

A study testing automatic CT/MRI-US fusion system guided radiofrequency ablation in people with Hepatocellular Carcinoma, run by Seoul National University Hospital.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

To prospectively evaluate the technical success rate of real-time computed tomography/CT/magnetic resonance imagingMR and -ultrasound (CT/MRI-US) automatic fusion system and the long-term therapeutic efficacy of radiofrequency ablation (RFA) guided by automatic fusion in hepatocellular carcinoma (HCC) patients. Read more about this study

Who is it for?
Ages 20 to 90 years
Conditions the study is for
Hepatocellular Carcinoma
What is being tested?
automatic CT/MRI-US fusion system guided radiofrequency ablation
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
139 participants
Where
No sites listed yet
Study dates
1 Aug 2015to 30 Nov 2016
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 20 to 90 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Pathologic or typical imaging based diagnosis of HCC
  • Multiphase CT or MRI within 3 months ahead of procedure
  • No evidence of distant metastasis
  • No contraindications for conventional RFA procedure in our institute, which are uncontrolled coagulopathy (international standard ratio ≥ 1.6, or platelet > 50,000), poor cooperation, unfeasible for sedation, portal vein tumor thrombus, tumor number >4, largest tumor size > 5cm, and tumors abutting portal vein or bile ducts bigger than segmental branches.

Who cannot join

  • Lack of multiphase CT or MRI withing 3 months ahead of procedure
  • RFA planned for palliative purpose
  • Diagnosed as non-HCC malignancy
  • Right hepatectomy state

About this study

Official title: Assessment of the Real-time CT/MR-US Automatic Fusion System Using Vascular Matching in Pre-procedure Planning for Radiofrequency Ablation: Preliminary Study

To prospectively evaluate the technical success rate of real-time computed tomography/CT/magnetic resonance imagingMR and -ultrasound (CT/MRI-US) automatic fusion system and the long-term therapeutic efficacy of radiofrequency ablation (RFA) guided by automatic fusion in hepatocellular carcinoma (HCC) patients.

Read the detailed description

RFA is one of commonly used local therapies for primary or secondary liver tumors. For successful and safe procedure, safe route of electrode and lesion visibility are essential for RFA, and the conditions are usually evaluated on pre-RFA planning ultrasonography (USG). However, RFA is sometimes aborted due to limited sonic window of various cause and challenging identification of small isoechoic tumors or hepatocellular carcinomas among dysplastic nodules . Therefore, precise targeting and assuring safe route would be of clinical importance. In this preliminary study, investigators attempted to determine automatic US and CT/MR fusion technique would be able to improve RFA feasibility in patients with liver tumors.

Being tested
automatic CT/MRI-US fusion system guided radiofrequency ablation
Keywords
Radiofrequency ablation, Fusion imaging
Medical subject headings
Carcinoma, Hepatocellular

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • automatic CT/MRI-US fusion system guided radiofrequency ablationProcedure or surgery

    automatic CT/MRI-US fusion system guided radiofrequency ablation

Study groups in NCT04844112
Study groupRoleWhat they receive
Experimental armExperimentalpatients undergo routine conventional feasibility planning ultrasound, and clinical decision of RFA feasibility is made based on conventional planning ultrasound. Then additional planning ultrasound using automatic CT/US fusion technique is immediately performed by the same operator, and clinical decision is made based on fusion imaging.
Receives: Procedure: automatic CT/MRI-US fusion system guided radiofrequency ablation

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Technical success rate of the fusion process

    Absolute technical success rate of the fusion process

    Measured: Immediately after fusion process

  2. Technical success rate of the overall RFA procedure

    Absolute technical success rate of the overall RFA compared to literature

    Measured: immediately after RFA procedure

  3. Rate of complete ablation of the tumor after 1 month clinical follow up

    Rate of complete ablation of the tumor after 1 month clinical follow up compared to literature

    Measured: 1 month after the RFA procedure

Secondary outcomes (4)
  1. Local tumor progression rate

    Local tumor progression rate after follow up compared to literature

    Measured: During post procedural follow up to 5 years

  2. Tumor visibility before and after the fusion process

    Tumor visibility recorded by a 4-scale scoring system. Comparison between pre- and post- fusion process.

    Measured: 10 minutes after finishing planning USG

  3. Technical feasibility before and after the fusion process

    Technical feasibility recorded by a 4-scale scoring system. Comparison between pre- and post- fusion process.

    Measured: 10 minutes after finishing planning USG

  4. Safety of the approach route before and after the fusion process

    Safety of the approach route recorded by a 4-scale scoring system. Comparison between pre- and post- fusion process.

    Measured: 10 minutes after finishing planning USG

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted14 Apr 2021
  2. Study start1 Aug 2015
  3. Primary completion30 Nov 2016
  4. Study completion30 Nov 2016

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
139 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04844112
Sponsor's protocol ID
1506-015-677
Status last verified
Apr 2021
First submitted
6 Apr 2021
Last updated
14 Apr 2021
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing automatic CT/MRI-US fusion system guided radiofrequency ablation in people with Hepatocellular Carcinoma, run by Seoul National University Hospital.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 14 Apr 2021. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Technical success rate of the fusion process (time frame: Immediately after fusion process). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 14 Apr 2021.

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