Implementation of Online Adaptive Radiotherapy for Breast Cancer Patients

Status Recruiting

Clinical Trial Summary

Postoperative radiotherapy is for the majority of breast cancer patients the standard of care. During postoperative radiotherapy, unexpected dosimetric deviations can occur due to breast contour changes resulting from resorption of postoperative breast or chest wall seroma/hematoma, oedema either postoperatively or during irradiation, or arm/body positioning variation. In approximately 10% of cases, repositioning after setup imaging is not sufficient, and offline plan adaptation is required. When a new treatment planning is required in the standard offline workflow this will take in general 2 days. By using an online adaptive workflow with a daily treatment planning this delay and extra work caused by offline plan adaptation can be omitted. The aim of this study is to translate the offline adaptive workflow to an online adaptive workflow, and investigate the experiences of patients who have been treated with online adaptive radiotherapy for breast cancer (BREAST-ART).

Clinical Trial Description

In this single-arm prospective BREAST-ART study breast cancer patients with an indication for postoperative radiotherapy will be treated according to the Dutch and institutional guidelines. Target volumes will be the whole breast, chest wall, axillary levels, tumor bed boost and partial breast irradiation on the right side and left side with a deep inspiration breath hold technique. Robust templates are developed for offline and online treatment planning with an IMRT tangential multiple-beam setup. A simulation of the online adaptive workflow is performed in breast cancer patients already treated on the Ethos-linac with the standard offline adaptive workflow. Patients will be treated following the online adaptive workflow delivered on the Ethos-Linac. Patient experience will be evaluated using an in-house developed questionnaires after the first and last fraction, scoring treatment satisfaction on a 4-point Likert scale. Furthermore, all dosimetric data, volume details, DICOM images and the time spend on all parts of the online adaptive workflow will be evaluated. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT05727553
Study type	Observational
Source	Amsterdam UMC, location VUmc
Contact	Barbara Rijksen, MD
Phone	+31650087496
Email	b.rijksen@amsterdamumc.nl
Status	Recruiting
Phase
Start date	December 10, 2021
Completion date	March 1, 2024

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Implementation of Online Adaptive Radiotherapy for Breast Cancer Patients on Ethos (BREAST-ART) — BREAST-ART

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms