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Immune Evasion, TumorARFIMNCT03960021

Immune Mechanisms After Radiofrequency Ablation of Pulmonary Metastases From Colorectal Cancer Origin

A study testing RFA interventions in people with Immune Evasion, Tumor and Neoplastic Cells, Circulating, run by Institut Bergonié at 1 site in France.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

Local percutaneous thermal ablation is frequently proposed in the management of metastatic diseases. Radiofrequency ablation (RFA) has demonstrated good results when the metastatic disease is limited and slowly evolving. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
RFA interventions
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
20 participants
Where
1 siteFrance
Study dates
4 Mar 2019to 15 Mar 2022
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patient older than 18 years-old.
  • OMS performance status ≤ 2.
  • Colorectal cancer histologically established previously.
  • Primary tumor resected.
  • Lung metastasis:
  • Bilateral metastasis (or unilateral metastases that need to undergo the RF in two separate sessions due to the number of metastases ≥ 5)
Show all 17Show fewer
  • Maximal diameter ≤ 4 cm,
  • non or slowly progressive, with or without chemotherapy,
  • eligible to RFA.
  • Thorax-abdomen-pelvis CT scan and PET scan:
  • performed within 8 weeks before inclusion
  • finding no more than 10 metastatic nodules (liver + lung or lung alone)
  • Maximum of 8 weeks between the last cycle of chemotherapy and the first RFA.
  • Decision of local treatment agreed at the multidisciplinary digestive tumor board.
  • Life expectancy ≥ 3 months.
  • Voluntarily signed and dated written informed consent prior to any study specific procedure.
  • Patients with a French social security in compliance with the Law relating to biomedical research (Article 1121-11 of French Public Health Code).

Who cannot join

  • Other than lung or liver metastases.
  • Contraindication to general anesthesia.
  • Contraindication to RFA: tumor location (< 1cm from the hilum), lung insufficiency (FEV/sec < 1l),
  • Pregnant or lactating women.
  • Concomitant participation to another interventional research.
  • Patient unable to follow and comply with the study procedures because of any geographical, social or psychological reasons.
  • Patient deprived of liberty or under legal protection measure.

Trial locations and contacts

1 site in 1 country.

France1 site
  • Institut Bergonie

    Bordeaux, 33076

Other trials in France

About this study

Official title: Immune Mechanisms After Radiofrequency Ablation of Pulmonary Metastases From Colorectal Cancer Origin- ARFIM Study

Local percutaneous thermal ablation is frequently proposed in the management of metastatic diseases. Radiofrequency ablation (RFA) has demonstrated good results when the metastatic disease is limited and slowly evolving. The destruction of solid metastasis by RF leads to inflammatory and immunological mechanisms that remain poorly understood. These pathological events may influence the overall and anti-tumor host immune responses. The purpose of the study is to identify and quantify some immune mechanisms triggered by RFA of pulmonary metastases from colorectal cancer origin.

Read the detailed description

RFA could provide activatory signals and become a source of tumor antigens for the immune system. Generating a massive and transient release of antigens, RFA could boost lymphocyte proliferation and production of inflammatory cytokines in response to tumor extracts. Herein, the investigator aims to demonstrate that RFA can amplify the specific T cell response in metastatic cancer patients. In order to ensure this, he plans to assess and quantify tumor infiltrating lymphocytes through tumoral biopsies. He also plans to measure the CD4, CD8 and NK lymphocytes release, the circulating DNA and tumoral cells release, during RFA of lung metastases. On tumoral biopsies, the expression of PDL-1 ligand will also be evaluated and measured. Participants with bilateral metastases or with 5 or more unilateral metastases will be recruited. The two RFA interventions will be carried out within 4-6 weeks of each other. Blood samples and tumoral biopsies will be performed during each intervention. Biopsies will be performed on a metastasis before the thermal ablation. Blood samples will be performed just before RFA, 30 min after RFA and one day after. Analysis, identification and measure of lymphocytes release will be performed with flow cytometry. All analysis and measurements will be performed in the Bio-Pathology department of Institut Bergonié.

Being tested
RFA interventions
Keywords
Colo-rectal cancer, Lung metastasis, Radiofrequency ablation, Tumor infiltrating lymphocytes, Circulating tumor cells, Circulating DNA
Medical subject headings
Neoplasms, Neoplastic Cells, Circulating, Colonic Neoplasms

What participants receive

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

  • RFA interventionsRadiation

    Each patient is treated with 2 RFA interventions. Abiopsy of one metastasis is done at each RF session. Histological samples are sent to the Bio-pathology department of Institut Bergonié for tumor infiltrating lymphocytes counting. Primary outcome results from this counting (stromal TILs ≥ 20% is considered as a significant level, a comparative measurement before and after RF will be performed). In parallel blood samples are performed before and after RFA to analyze the kinetics of peripheral blood T lymphocytes subsets, tumoral circulating cells and tumoral DNA.

Study groups in NCT03960021
Study groupRoleWhat they receive
Single armExperimentalEach patient is treated with 2 RFA interventions.
Receives: Radiation: RFA interventions

What is being measured

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

  1. Immune Response Triggered by RFA: Change From Rate of Tumor Infiltrating T Lymphocytes on Tumoral Stroma Measured Before and After RFA1.

    Measured: Day 1

  2. Immune Response Triggered by RFA: Change From Rate of Tumor Infiltrating T Lymphocytes on Tumoral Stroma Measured Before and After RFA2.

    Measured: Week 6

  3. Immune Response Triggered by RFA: Quantification of Interaction of PD-1 and PD-L1 in Lung Metastases Using Immune Förster Resonance Energy Transfer (iFRET).

    Measured: Day 1

  4. Immune Response Triggered by RFA: Quantification of Interaction of PD-1 and PD-L1 in Lung Metastases Using Immune Förster Resonance Energy Transfer (iFRET).

    Measured: Week 6

Timeline

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

  1. First posted22 May 2019
  2. Study start4 Mar 2019
  3. Primary completion15 Apr 2021
  4. Study completion15 Mar 2022

Why it stopped: Biological analyses could not be performed (technical reasons related to the machine). As such, it was not possible to assess primary/secondary outcomes. No attempt will be made in the future to collect and/or report the data

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
20 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03960021
Sponsor's protocol ID
IB 2018-03
Other IDs
2018-A01996-49
Acronym
ARFIM
Status last verified
Mar 2026
First submitted
2 Apr 2019
Last updated
27 Mar 2026
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Miles J, Soubeyran I, Marliot F, Pangon N, Italiano A, Bellera C, Ward SG, Pages F, Palussiere J, Larijani B. Determination of Interactive States of Immune Checkpoint Regulators in Lung Metastases after Radiofrequency Ablation. Cancers (Basel). 2022 Nov 22;14(23):5738. doi: 10.3390/cancers14235738.

    PubMed 36497220

Questions about this trial

What is this clinical trial studying?

A study testing RFA interventions in people with Immune Evasion, Tumor and Neoplastic Cells, Circulating, run by Institut Bergonié at 1 site in France.

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 17 inclusion and 7 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: stopped early, as of the sponsor's last update on 27 Mar 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in France. Whether a site is taking part right now should be confirmed with that site. See every site.

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?

Yes. Results are posted in the registry (first posted 24 Oct 2025). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Immune Response Triggered by RFA: Change From Rate of Tumor Infiltrating T Lymphocytes on Tumoral Stroma Measured Before and After RFA1. (time frame: Day 1). The study lists 4 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03960021, which also lists 1 linked publication.

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 27 Mar 2026.

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