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Lung CancerSBRT_LOVNCT06722885

Stereotactic Body Radiotherapy for Lung Lesions With Markerless Tracking (MLT) on the VERO® SBRT System

An observational study of Lung Cancer and Stereotactic Body Radiotherapy, run by Universitair Ziekenhuis Brussel at 1 site in Belgium.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

Stereotactic Body Radiotherapy (SBRT) delivers an ablative dose of radiation to tumours, with high precision. This technique offers an alternative to surgery for lung lesions. The UZ Brussel of the VUB developed with the support of the Hercules foundation (grant for heavy research infrastructure) in collaboration with… Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Standard radiotherapy treatment
Type of treatment
Surgery or procedure
How many people
0 participants
Where
1 siteBelgium
Study dates
1 Jan 2022to 30 Apr 2022
How long will I take part?
5 Years
Phase
Observational
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 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Patients with lung lesions or primary lung cancer

Who may be able to join

  • Primary NSCLC patients, stage T1-2bN0M0 (TNM 8th edition)
  • Oligometastatic patients with ≤ 3 lung metastases; SBRT as a primary treatment or as a consolidative treatment after induction chemotherapy;
  • >= 18 years
  • Patients will be recruited via the treating radiotherapist
  • -

Who cannot join

  • -

Trial locations and contacts

1 site in 1 country.

Belgium1 site
  • Universitair Ziekenhuis Brussel

    Brussels

Other trials in Belgium

About this study

Official title: Observational Study of Stereotactic Body Radiotherapy for Lung Lesions With Markerless Tracking (MLT) on the VERO® SBRT System

Stereotactic Body Radiotherapy (SBRT) delivers an ablative dose of radiation to tumours, with high precision. This technique offers an alternative to surgery for lung lesions. The UZ Brussel of the VUB developed with the support of the Hercules foundation (grant for heavy research infrastructure) in collaboration with Brainlab AG a breathing-synchronized radiation technique on the VERO SBRT system, where the radiation beam follows the moving target (dynamic tumour tracking). The implantation of a marker in the tumour is thereby mandatory for its visualization but excluding patients with poor pulmonary function. Therefore Brainlab® recently released an update of the VERO SBRT system that allows "Markerless Tracking". This markerless technique is currently being implemented at the Radiotherapy Department of UZ Brussel for lung lesions. Hence we plan an observational study that will document the outcome of and feasibility for patients with lung lesions treated with markerless tracking on the VERO SBRT system at the Radiotherapy Department in UZ Brussel.

Read the detailed description

Stereotactic Body Radiotherapy (SBRT) delivers an ablative dose of radiation to tumours, with high precision. This technique offers an alternative to surgery for lung lesions. The movement of these tumours represents a clinical problem and a technological challenge. The UZ Brussel of the VUB developed with the support of the Hercules foundation (grant for heavy research infrastructure) in collaboration with Brainlab AG a breathing-synchronized radiation technique on the VERO SBRT system, where the radiation beam follows the moving target (dynamic tumour tracking). The implantation of a marker in the tumour is thereby mandatory for its visualization but excluding patients with poor pulmonary function. Moreover, the placement of such an implanted fiducial marker is contraindicated for about 30% of the patients and may be associated with complications such as pneumothorax and bleeding.

Therefore Brainlab® recently released an update of the VERO SBRT system that allows "Markerless Tracking" (MLT). This markerless technique is currently being implemented at the Radiotherapy Department of UZ Brussel for lung lesions. Within the Spearhead Strategic Research Program "Societal Benefit of Markerless Stereotactic Body Radiotherapy: a Statistical Support based on Quantitative Imaging", the investigators aim at evaluating the implementation of this technique focusing on patient outcomes and clinical feasibility. In order to do so they plan an observational study that will document the feasibility and outcome of patients with lung lesions treated with markerless tracking on the VERO SBRT system at the Radiotherapy Department in UZ Brussel.

Being tested
Standard radiotherapy treatment
Keywords
radiotherapy, stereotactic body radiotherapy, markerless tracking, clinical feasibility, implementation
Medical subject headings
Lung Neoplasms, Lung Diseases, Carcinoma, Non-Small-Cell Lung

What participants receive

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

  • Standard radiotherapy treatmentRadiation

    • 3 x 17 Gy for peripheral NSCLC
    • 4 x 12 Gy in centrally located NSCLC or at < 1cm from the thoracic wall
    • 8 x 7,5 Gy if with the predefined dose for NSCLC, the constraints of the organs at risk cannot be met
    • 5 x 8,5 Gy in case of oligometastases
Study groups in NCT06722885
Study groupRoleWhat they receive
Markerless tracking* Gross tumor volume for MLT (GTV_MLT): lesion delineated on stable exhale phase of the 4DCT. * Planning target volume for MLT (PTV_MLT): GTV + 8 mm isotropic expansion
Receives: Radiation: Standard radiotherapy treatment
ITV approach* Gross tumor volume (GTV): lesion delineated on the ten phases of the 4DCT. * Internal target volume (ITV): propagate all GTV on stable exhale phase of the 4DCT. * Planning target volume for ITV (PTV_ITV): ITV + 5 mm isotropic expansion
Receives: Radiation: Standard radiotherapy treatment
Markerbased tracking* Gross tumor volume for tracking (GTV_Track): lesion delineated on stable exhale phase of the 4DCT. * Planning target volume for tracking (PTV_Track): GTV + 5 mm isotropic expansion
Receives: Radiation: Standard radiotherapy treatment

What is being measured

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

  1. Rate of patients treated with markerless and markerbased technique

    Comparing patient characteristics between markerbased and marker less technique

    Measured: 1 week

  2. Local tumor control

    local control at 1 year

    Measured: 1 year

  3. Number of patients with acute toxicity

    according to Common Terminology Criteria for Adverse Events (CTCAE, Version 4.0)

    Measured: up to 6 months

  4. Number of patients with late toxicity

    according to Common Terminology Criteria for Adverse Events (CTCAE, Version 4.0)

    Measured: up to 5 years

  5. Disease free survival

    Disease free survival

    Measured: up to 5 years

  6. Overall survival

    Overall survival

    Measured: up to 5 years

Timeline

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

  1. First posted9 Dec 2024
  2. Study start1 Jan 2022 (estimated)
  3. Primary completion30 Apr 2022 (estimated)
  4. Study completion30 Apr 2022 (estimated)

Why it stopped: The VERO® SBRT System radiation machine had water damage and could not be repaired.

Resources

More details

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

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
0 participants (actual)
Target duration
5 Years
IDs, dates and publications
ClinicalTrials.gov ID
NCT06722885
Sponsor's protocol ID
SBRT_LOV
Acronym
SBRT_LOV
Status last verified
Dec 2024
First submitted
14 May 2019
Last updated
9 Dec 2024
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Questions about this trial

What is this clinical trial studying?

An observational study of Lung Cancer and Stereotactic Body Radiotherapy, run by Universitair Ziekenhuis Brussel at 1 site in Belgium.

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 5 inclusion and 1 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: withdrawn, as of the sponsor's last update on 9 Dec 2024. 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 Belgium. 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?

The study was withdrawn before enrolling participants, so there are no results.

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?

Rate of patients treated with markerless and markerbased technique (time frame: 1 week). The study lists 6 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 9 Dec 2024.

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