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Breast Cancer FemaleNCT05179161

Validation of Prone Crawl Radiotherapy for Whole-breast Irradiation After Breast Conserving Surgery

A study testing Prone crawl positioning in people with Breast Cancer Female, run by University Hospital, Ghent.

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

The aim of this study is to validate the obtained results of setup precision, comfort and setup time. The possibility of using breath hold for heart sparing in combination with prone crawl position will be tested. Read more about this study

Who is it for?
Ages 18 years and older, women only
Conditions the study is for
Breast Cancer Female
What is being tested?
Prone crawl positioning
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
40 participants
Where
No sites listed yet
Study dates
31 May 2016to 29 Mar 2017
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 18 years and older
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Female patients
  • Non-metastasized breast carcinoma
  • Multidisciplinary decision of adjuvant radiotherapy after lumpectomy for breast cancer
  • Prone WBI without LNI indicated according to the department's guidelines, treatment schedule of at least 15 fractions
  • Age ≥ 18 years
  • Informed consent obtained, signed and dated before specific protocol procedures

Who cannot join

  • < 18 years old
  • Mastectomy
  • Need for LNI
  • Bilateral breast irradiation
  • Partial breast irradiation
  • Unable to be treated in prone position
Show all 11Show fewer
  • Less than 15 treatment fractions planned
  • Situs inversus
  • Pregnant or breastfeeding
  • Mental condition rendering the patient unable to understand the nature, scope and possible consequences of the study
  • Patient unlikely to comply with the protocol; i.e. uncooperative attitude, inability to return for follow-up visits, and unlikely to complete the study

About this study

The aim of this study is to validate the obtained results of setup precision, comfort and setup time. The possibility of using breath hold for heart sparing in combination with prone crawl position will be tested. Forty patients (20 with left-sided and 20 with right-sided breast carcinoma) presenting for WBI without LNI after breast-conserving surgery will be included after signing informed consent.

Read the detailed description

This is a phase II non-randomized trial, where 40 patients will be treated for breast cancer requiring whole breast irradiation as per standard of care. Patients will be simulated and treated using the novel prone crawl position to a total dose of 40.05 Gy in 15 fractions of 2.67 Gy.

The trial aims to evaluate setup precision, patient comfort and setup time in the prone crawl positioning. Feasibility of deep inspiration breathhold will be tested and dosimetric parameters evaluated.

This is done through registration of setup errors at the time of treatment, questionnaires for comfort/discomfort scoring, time registration, toxicity scoring, and dosimetric analysis in treatment planning systems.

Being tested
Prone crawl positioning
Keywords
Prone positioning, Prone crawl position, Radiotherapy, Whole breast irradiation, Setup errors, Patient comfort, Setup time, Deep inspiration breathhold, Dosimetry

What participants receive

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

  • Prone crawl positioningDevice

    Breast cancer patients are placed in a prone position with the ipsilateral arm besides the body rather than extended besides the head on a dedicated couch that provides the required support for maintaining this position.

Study groups in NCT05179161
Study groupRoleWhat they receive
Prone crawl positionExperimentalPatients are placed in the prone crawl position for whole breast irradiation and are treated with 15 x 2,67 Gy (± boost treatment if required as per international guidelines)
Receives: Device: Prone crawl positioning

What is being measured

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

  1. Setup error

    Setup errors are analyzed using Van Herk parameters obtained by rigid coregistration of treatment imaging with simulation imaging

    Measured: During the intervention

Secondary outcomes (5)
  1. Patient comfort

    Patient comfort as assessed by questionnaire

    Measured: immediately after the intervention

  2. Setup Time

    Time taken for setting up the patient for each fraction

    Measured: During the intervention

  3. Reproducibility of DIBH

    The reproducibility and stability of deep inspiration breathhold is investigated by performing multiple breathhold manoevres during CT imaging at baseline, and comparing the relative geometric position of organs between on the acquired images for each patient. This will be evaluated by calculating the overlap index and dice similarity coefficien between these images.

    Measured: At baseline

  4. Acute toxicity

    Acute side effects due to radiotherapy using Common Terminology Criteria for Adverse Events (CTCAE) version 4.03 toxicity scoring system, scoring toxicities from grade 0 (no toxicity) to grade 5 (death)

    Measured: 6 months after treatment end

  5. Dose to target and dose to organs at risk

    Analysis is dose using the Dose-volume histogram (DVH) of targets and organs at risk, as obtained on CT simulation images. These DVH's are used to assess amount of radiation received by each organ and treatment target and assess the risk of treatment failure or treatment harm.

    Measured: Before treatment initiation after CT simulation

Timeline

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

  1. First posted5 Jan 2022
  2. Study start31 May 2016
  3. Primary completion29 Sep 2016
  4. Study completion29 Mar 2017

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
Other
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
40 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05179161
Sponsor's protocol ID
EC-UZ-2016/0351
Other IDs
B670201628048
Status last verified
Oct 2021
First submitted
19 Oct 2021
Last updated
5 Jan 2022
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No: Sharing patient data is not planned

Publications

  • Deseyne P, Speleers B, De Neve W, Boute B, Paelinck L, Vakaet V, Van Hulle H, Schoepen M, Stouthandel M, Van Greveling A, Post G, Detand J, Monten C, Depypere H, Veldeman L. Crawl positioning improves set-up precision and patient comfort in prone whole breast irradiation. Sci Rep. 2020 Oct 2;10(1):16376. doi: 10.1038/s41598-020-72702-3.

    PubMed 33009448
  • Deseyne P, Speleers B, Paelinck L, De Gersem W, De Neve W, Schoepen M, Van Greveling A, Van Hulle H, Vakaet V, Post G, Monten C, Depypere H, Veldeman L. Reproducibility of repeated breathhold and impact of breathhold failure in whole breast and regional nodal irradiation in prone crawl position. Sci Rep. 2022 Feb 3;12(1):1887. doi: 10.1038/s41598-022-05957-7.

    PubMed 35115610

Questions about this trial

What is this clinical trial studying?

A study testing Prone crawl positioning in people with Breast Cancer Female, run by University Hospital, Ghent.

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 6 inclusion and 11 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 5 Jan 2022. 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?

Setup error (time frame: During the intervention). 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 NCT05179161, which also lists 2 linked publications.

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 5 Jan 2022.

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