Whole Breast + Lymph Node Irradiation: Prone Compared to Supine Position in 15 or 5 Fractions (PRO-SURF)

December 9, 2022 updated by: University Ghent

Whole Breast (WB) + Lymph Node Irradiation (LNI): Prone Compared to Supine Position in a Randomized Study With 15 or 5 Fractions

The goal of this trial is to evaluate the effect of the prone crawl treatment position and/or accelerated schedule on acute and late toxicities, as well as quality of life and time management for breast cancer patients receiving whole breast and regional nodal irradiation after breast conserving surgery.

Study Overview

Detailed Description

Locoregional radiotherapy after lumpectomy and axillary node dissection diminishes the locoregional recurrence risk at 10 years by 21,2 % in women with pathologically confirmed lymph node involvement.

Excess dose to organs at risk can lead to acute and late side effects, such as tissue damage, organ malfunction and secondary cancers. Radiotherapy in prone position has helped reduce these risks for whole breast radiotherapy only, but has not yet been adequately investigated for patients also requiring regional nodal irradiation. One of the reasons is that there is no optimal patient support device available to allow regional nodal irradiation in prone position. To this end, a novel positioning device was developed at our center, allowing regional nodal irradiation in prone position. It was called the crawl breast couch because the patient position resembles a phase from the crawl swimming technique. A previous planning study by Deseyne et al. using this device shows a benefit (i.e. reduced dose) for the ipsilateral lung, the thyroid, as well as a minor benefit for the right lung, and contralateral breast (which already receive very low relative doses) while maintaining similar target coverage when compared to supine positioning.

Apart from the paradigm shift from supine to prone radiotherapy, in recent years, it has become clear that breast cancer cells are more sensitive to fraction dose than originally presumed. Large randomized trials confirm this hypothesis: moderate hypofractionation schemes in 15 or 16 fractions are at least equivalent in tumor control and toxicity although the total dose is lower than the traditional 50 Gy in 25 fractions. Further acceleration to 5 fractions is expected to have an even larger radiobiological advantage regarding tumor control. Additional advantages are patient comfort and a better use of radiotherapy resources.

This randomized trial with 2 x 2 factorial design tests 2 interventions for patients with breast cancer requiring whole-breast and regional nodal irradiation: radiotherapy in prone position with a specifically designed patient support device called the crawl breast couch, and accelerated radiotherapy in 5 fractions. The standard arm in this trial is supine hypofractionated radiotherapy.

The goal of this trial is to evaluate the effect of the prone crawl treatment position and/or accelerated schedule on acute and late toxicities, as well as quality of life and time management for breast cancer patients receiving whole breast and regional nodal irradiation after breast conserving surgery.

Study Type

Interventional

Enrollment (Actual)

61

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Oost-Vlaanderen
      • Ghent, Oost-Vlaanderen, Belgium, 9000
        • Radiotherapy department, UZ Ghent

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Female

Description

Inclusion Criteria:

  • Breast conserving surgery
  • AND Multidisciplinary decision of adjuvant whole breast + regional nodal irradiation
  • AND Informed consent obtained, signed and dated before specific protocol procedures

Exclusion Criteria:

  • Mastectomy
  • OR Bilateral breast irradiation
  • OR Distant metastasis/metastases
  • OR previous irradiation to the thoracic, cervical or axillary region and overlap of fields with current treatment
  • OR life expectancy of less than 2 years
  • OR pre-existing conditions or comorbidities making toxicity evaluation difficult, e.g. skin disorders
  • OR pregnant or breast feeding
  • OR mental condition rendering the patient unable to understand the nature, scope and possible consequences of the study
  • OR patient unlikely to complete the study

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Factorial Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Supine Hypofractionated Radiotherapy

Supine Radiotherapy and Hypofractionation:

Whole breast + regional nodal irradiation in supine position with a median dose of 15 x 2.67 Gy prescribed to the whole breast and nodal regions. Median dose of the simultaneously integrated boost is 3.12 Gy per fraction.

Supine positioning for regional nodal irradiation using breastboard.
Other Names:
  • Supine regional nodal irradiation
Moderate hypofractionation in 15 fractions over 3 weeks with simultaneously integrated boost
Other Names:
  • Moderate hypofractionation
Experimental: Prone Hypofractionated Radiotherapy

Prone Radiotherapy and Hypofractionation:

Whole breast + regional nodal irradiation in prone position with a 15 x 2.67 Gy dose prescription to the whole breast and nodal regions. Median dose of the simultaneously integrated boost is 3.12 Gy per fraction.

Moderate hypofractionation in 15 fractions over 3 weeks with simultaneously integrated boost
Other Names:
  • Moderate hypofractionation
Prone positioning for regional nodal irradiation using the crawl breast couch.
Other Names:
  • Crawl position
  • Prone regional nodal irradiation
Experimental: Supine Accelerated Radiotherapy

Supine Radiotherapy and Acceleration:

Whole breast + regional nodal irradiation in supine position with a median dose of 5 x 5.7 Gy to the whole breast. Lymph node regions receive a median dose of 5 x 5.4 Gy. Median dose of the simultaneously integrated boost is 6.2 Gy per fraction.

Supine positioning for regional nodal irradiation using breastboard.
Other Names:
  • Supine regional nodal irradiation
Accelerated irradiation in 5 fractions over 12 days with simultaneously integrated boost
Other Names:
  • HAI-5
  • Hyper-accelerated irradiation
  • 5 fractions
Experimental: Prone Accelerated Radiotherapy

Prone Radiotherapy and Acceleration:

Whole breast + regional nodal irradiation in prone position with a median dose of 5 x 5.7 Gy to the whole breast. Lymph node regions receive a median dose of 5 x 5.4 Gy. Median dose of the simultaneously integrated boost is 6.2 Gy per fraction.

Prone positioning for regional nodal irradiation using the crawl breast couch.
Other Names:
  • Crawl position
  • Prone regional nodal irradiation
Accelerated irradiation in 5 fractions over 12 days with simultaneously integrated boost
Other Names:
  • HAI-5
  • Hyper-accelerated irradiation
  • 5 fractions

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Breast retraction
Time Frame: 2 years after radiotherapy
Rate of breast retraction or volume loss after radiotherapy
2 years after radiotherapy

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Acute toxicity - Dermatitis
Time Frame: Baseline and from radiation initiation until 8-16 days after radiation treatment
Dermatitis measured by CTCAE v4.03
Baseline and from radiation initiation until 8-16 days after radiation treatment
Acute toxicity - Desquamation
Time Frame: Baseline and from radiation initiation until 8-16 days after radiation treatment
Desquamation measured by CTCAE v4.03
Baseline and from radiation initiation until 8-16 days after radiation treatment
Acute toxicity - Breast oedema
Time Frame: Baseline and from radiation initiation until 8-16 days after radiation treatment
Breast oedema measured by CTCAE v4.03
Baseline and from radiation initiation until 8-16 days after radiation treatment
Acute toxicity - Shoulder range of motion
Time Frame: Baseline and from radiation initiation until 8-16 days after radiation treatment
Shoulder range of motion measured by maximal excursion in abduction-adduction and anteversion-retroversion, in degrees from anatomical reference position
Baseline and from radiation initiation until 8-16 days after radiation treatment
Acute toxicity - Arm circumference
Time Frame: Baseline and from radiation initiation until 8-16 days after radiation treatment
Arm circumference measured in cm 15 cm above and below medial epicondyle
Baseline and from radiation initiation until 8-16 days after radiation treatment
Acute toxicity - Breast symptoms - pain
Time Frame: Baseline and from radiation initiation until 8-16 days after radiation treatment
Breast pain measured on a scale: 0 (no pain) - 1 (pain on contact) - 2 (pain on contact and also occasionally spontaneous) - 3 (pain on contact and regularly spontaneous) - 4 (pain medication needed and specify which)
Baseline and from radiation initiation until 8-16 days after radiation treatment
Acute toxicity - Breast symptoms - sense of heaviness
Time Frame: Baseline and from radiation initiation until 8-16 days after radiation treatment
Sense of breast heaviness defined as present or absent.
Baseline and from radiation initiation until 8-16 days after radiation treatment
Acute toxicity - Breast symptoms - itching
Time Frame: Baseline and from radiation initiation until 8-16 days after radiation treatment
Itching in the breast on a scale: 0 (no itching) - 1 (occasional itching) - 2 (regular itching)
Baseline and from radiation initiation until 8-16 days after radiation treatment
Acute toxicity - Arm Symptoms - Pain
Time Frame: Baseline and from radiation initiation until 8-16 days after radiation treatment
Arm pain measured on a scale: 0 (no pain) - 1 (pain on contact) - 2 (pain on contact and also occasionally spontaneous) - 3 (pain on contact and regularly spontaneous) - 4 (pain medication needed and specify which)
Baseline and from radiation initiation until 8-16 days after radiation treatment
Acute toxicity - Arm Symptoms - Sense of heaviness
Time Frame: Baseline and from radiation initiation until 8-16 days after radiation treatment
Sense of arm heaviness defined as present or absent.
Baseline and from radiation initiation until 8-16 days after radiation treatment
Acute toxicity - Shoulder symptoms - Pain
Time Frame: Baseline and from radiation initiation until 8-16 days after radiation treatment
Pain in the irradiated shoulder as defined on a scale: 0 (no pain) - 1 (occasional pain) - 2 (regular pain)
Baseline and from radiation initiation until 8-16 days after radiation treatment
Acute toxicity - Shoulder symptoms - Impaired shoulder mobility
Time Frame: Baseline and from radiation initiation until 8-16 days after radiation treatment
Impaired shoulder mobility on the irradiated side defined as present or absent
Baseline and from radiation initiation until 8-16 days after radiation treatment
Acute toxicity - Pain not in arm/shoulder/breast
Time Frame: Baseline and from radiation initiation until 8-16 days after radiation treatment
Pain present in any other region than arm, shoulder or breast, defined on a scale: 0 (no pain) - 1 (occasional pain) - 2 (regular pain). Painful locations are indicated on a figure.
Baseline and from radiation initiation until 8-16 days after radiation treatment
Acute toxicity - Dysphagia
Time Frame: Baseline and from radiation initiation until 8-16 days after radiation treatment
Dysphagia measured according to CTCAE v4.03
Baseline and from radiation initiation until 8-16 days after radiation treatment
Acute toxicity - Dyspnea
Time Frame: Baseline and from radiation initiation until 8-16 days after radiation treatment
Dyspnea measured according to CTCAE v4.03
Baseline and from radiation initiation until 8-16 days after radiation treatment
Acute toxicity - Cough
Time Frame: Baseline and from radiation initiation until 8-16 days after radiation treatment
Cough measured according to CTCAE v4.03
Baseline and from radiation initiation until 8-16 days after radiation treatment
Acute toxicity - Cardiac toxicity
Time Frame: Baseline and from radiation initiation until 8-16 days after radiation treatment
Troponin T value at last treatment session ± 1 day compared with baseline measurement.
Baseline and from radiation initiation until 8-16 days after radiation treatment
Non-breast retraction late treatment related toxicity
Time Frame: Baseline and from 6 months post radiotherapy until 5 years after radiotherapy
breast oedema, telangiectasia, color changes, fibrosis, shoulder symptoms, breast symptoms, arm symptoms, brachial plexopathy, heart toxicity, dyspnea, thyroid function, pain, fatigue.
Baseline and from 6 months post radiotherapy until 5 years after radiotherapy
Cosmesis
Time Frame: Baseline, 1st visit after radiotherapy and at year 1, 2 and 5
Photographic image analysis using BCCT.core using frontal images with different arm positions. Reported cosmetic outcome is evaluated with radiotherapy specific items of the Breast Q questionnaire
Baseline, 1st visit after radiotherapy and at year 1, 2 and 5
Quality of life - General
Time Frame: At baseline and at 1, 2 and 5 years after radiotherapy
EORTC questionnaire QLQ-C30
At baseline and at 1, 2 and 5 years after radiotherapy
Quality of life - Breast specific questionnaire
Time Frame: At baseline and at 1, 2 and 5 years after radiotherapy
Supplementing the general quality of life outcome (QLQ-C30) with breast specific questionnaire using the EORTC QLQ-BR23 tool
At baseline and at 1, 2 and 5 years after radiotherapy
Locoregional and distant tumor control
Time Frame: At 1, 2 and 5 years after radiotherapy
Locoregional and distant tumor control
At 1, 2 and 5 years after radiotherapy
Treatment duration
Time Frame: At 3 weeks
Time registration from the moment the patient climbs the treatment couch until end of radiation. The first fraction is not measured as unforeseen problems in the workflow, questions or difficulties might delay treatment and falsify the results. The moment the patient mounts the treatment couch as well as the moment she climbs down, will be registered using a remote sensor. The beam on time is automatically registered by the treatment software.
At 3 weeks
Dose parameters of target tissues/organs at risk
Time Frame: After treatment planning (Week 1-2 after inclusion)

Data extracted from dose-volume histograms (DVHs) and associated DVH planning files. the data are extracted from the developped treatment plan before treatment is initiated. Discrete values will be evaluated for all patients, more precisely the following:

D02 as a surrogate for Dmax, D05, D50, D95, D100, mean dose. All these values are reported in Gray (Gy)

Parameters evaluated for OARs:

- Mean dose, D02, D05, all in Gray

After treatment planning (Week 1-2 after inclusion)
Volume parameters of targets/organs at risk/hot spots - volume of the structures
Time Frame: After treatment planning (Week 1-2 after inclusion)

Data extracted from dose-volume histograms (DVHs) and associated DVH planning files. the data are extracted from the developped treatment plan before treatment is initiated.

Volume of the targets and organs at risk is measured in cubic centimeters (cm³). Hot spots are defined as regions receiving either 105 or 107 % of the prescribed dose or more.

After treatment planning (Week 1-2 after inclusion)
Volume parameters of targets/organs at risk - relative volume receiving a certain dose
Time Frame: After treatment planning (Week 1-2 after inclusion)

Data extracted from dose-volume histograms (DVHs) and associated DVH planning files. the data are extracted from the developped treatment plan before treatment is initiated.

For Organs at risk, a V5, V10, V20, V30 will be calculated. This is the relative volume of a the structure receiving a dose of 5, 10, 20 or 30 Gy. The value is measured as a percentage (%) of the total structure volume.

After treatment planning (Week 1-2 after inclusion)
Setup accuracy
Time Frame: Before each scheduled radiation treatment session (every treatment day starting from radiotherapy start until ± 3 weeks later)
Cone beam computed tomography verification directly prior to each scheduled radiation treatment session to determine shift between planned positioning and actual positioning. Shifts are performed and registered in laterolateral, craniocaudal and anteroposterior directions. No rotations are performed.
Before each scheduled radiation treatment session (every treatment day starting from radiotherapy start until ± 3 weeks later)
Treatment cost
Time Frame: Baseline, 1st visit after radiotherapy and at year 1, 2 and 5
Cost-Utility Analysis (CUA) using the EuroQoL 5D tool.
Baseline, 1st visit after radiotherapy and at year 1, 2 and 5

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Katrien Vandecasteele, MD, PhD, UZ Ghent

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

September 15, 2017

Primary Completion (Actual)

July 7, 2020

Study Completion (Actual)

June 9, 2021

Study Registration Dates

First Submitted

August 2, 2017

First Submitted That Met QC Criteria

September 7, 2017

First Posted (Actual)

September 12, 2017

Study Record Updates

Last Update Posted (Estimate)

December 12, 2022

Last Update Submitted That Met QC Criteria

December 9, 2022

Last Verified

December 1, 2022

More Information

Terms related to this study

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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