3D Printed Bolus in Post-mastectomy Radiotherapy

April 14, 2021 updated by: Jiangxi Provincial Cancer Hospital

Clinical Study of 3D Printed Bolus for Volumetric Modulated Arc Therapy of Post-mastectomy Treatment

Recently, there is growing interest in the application of three-dimensional (3D) printed bolus to radiotherapy.At present, the researches on the application of 3D-printed bolus in breast cancer are mainly focused on air gap between skin and bolus or electron beam conformal therapy [7,15], there are no clinical experience with customized 3D-printed bolus for volumetric modulated arc therapy (VMAT) in daily practice has been published up to now. We aim to evaluate dosimetry and application of 3D-printed bolus for the post-mastectomy radiotherapy (PMRT) with Volumetric modulated arc therapy (VMAT). Seventy five patients with breast cancer receiving radiotherapy following post-mastectomy in our department were randomly selected in this study. The accuracy of fit of the 3D-Printed bolus to the chest wall was improved significantly relative to conventional bolus.This study demonstrates customized 3D-printed bolus in post-mastectomy radiation therapy improves fit of the bolus compared to conventional bolus. Furthermore, VMAT based on 3D-printed bolus significantly improves the chest wall target coverage and the conformity of plan, and reduces the dose of ipsilateral lung and heart, compared to conventional bolus.

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Anticipated)

70

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

  • China
    • Jiangxi
      • Nanchang, Jiangxi, China, 330029
        • Recruiting
        • Jiangxi Cancer Hospital of Nanchang University
        • Contact:

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

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • breast cancer patients with post-mastectomy treatment

Exclusion Criteria:

  • NA

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: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: 3D-printed bolus
Other: customized 3D-printed bolus fabricated based on reconstruction of computed tomography (CT) images
customized 3D-printed bolus fabricated based on reconstruction of computed tomography (CT) images were used in this study.
No Intervention: Conventional bolus

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
dose comparison
Time Frame: one year
The prescription dose was 50 Gy in 25 fractions. Dose-volume histograms (DVHs) were used dosimetric analysis. D98%, D50% and D2%, indicating dose to 98% (near-minimum dose), 50% and 2% (near-maximum dose) of both target volumes, and V95%, V100%, and V110% indicating percent volume receiving 95%, 100% and 110% of prescribed dose, were recorded
one year

Collaborators and Investigators

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

Sponsor

Jiangxi Provincial Cancer Hospital

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)

March 1, 2020

Primary Completion (Actual)

April 15, 2021

Study Completion (Anticipated)

April 20, 2021

Study Registration Dates

First Submitted

November 18, 2020

First Submitted That Met QC Criteria

December 21, 2020

First Posted (Actual)

December 28, 2020

Study Record Updates

Last Update Posted (Actual)

April 19, 2021

Last Update Submitted That Met QC Criteria

April 14, 2021

Last Verified

November 1, 2020

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • jcl2020-2 breast cancer

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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