Trial of Tomotherapy in Breast Cancer (TomoBreast)

May 12, 2017 updated by: Vincent Vinh-Hung, MD, PhD, Vrije Universiteit Brussel

Randomized Trial Comparing Conventional vs Short-course Reduced Volume Conformal Post-surgery Radiation Treatment in Women With Stage I or II Breast Cancer

Tomotherapy is a new radiation therapy system that uses an integrated CT scanner during delivery of radiation treatment to improve the accuracy of the treatment. Furthermore the irradiation is delivered helicoidally allowing highly conformal shaping of dose distribution. However the magnitude of the clinical advantage of using the system in breast cancer is unknown. The purpose of the present study is to investigate whether or not the Tomotherapy can substantially reduce pulmonary and cardiac toxicities, as compared with conventional radiotherapy.

Study Overview

Detailed Description

Prior to surgery: histological confirmation; medical imaging.

Localizing markers are placed in case of breast conserving surgery.

After surgery, patients are randomized to one of two treatment arms:

  • Arm I: radiotherapy using tangential chest fields, and supraclavicular field in case of nodal involvement, according to our hospital's standard procedure (Voordeckers M et al, Radiother Oncol 2003;68:227 and 2004;70:225). Dose-fractionation: 50 Gy in 25 fractions over 5 weeks, 2 Gy/fraction. Additional boost 16 Gy in 8 fractions over 2 weeks if breast conserving surgery (verify marker/clip localization) and age <= 70 years.
  • Arm II: radiotherapy using the Tomotherapy system. Target area (breast, thorax wall, nodal areas) delimited according to pre-operative imaging and pathological description. Dose-fractionation (adapted from Whelan T et al, JNCI 2002;94:1143): 42 Gy in 15 fractions over 3 weeks, 2.8 Gy/fraction. Simultaneous boost 0.6 Gy/fraction if breast conserving surgery.

Physics quality control is integrated during treatment in both arms.

Radiotherapy begins within 6 weeks after the last breast surgery. Concurrent or sequential adjuvant systemic treatments are allowed. In case of sequential adjuvant treatment with chemotherapy first, radiotherapy begins within 6 weeks after completion of the adjuvant chemotherapy.

Quality of life, arm mobility and edema, pulmonary and heart function are assessed prior to radiotherapy, at 1-3 months after completion of radiotherapy, then yearly.

Study Type

Interventional

Enrollment (Anticipated)

118

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

    • Brussels
      • Jette, Brussels, Belgium, 1090
        • Oncologisch Centrum, UZ Brussel

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:

  • Informed consent
  • Histologically proven breast carcinoma
  • Stage I or II (T1-3N0 or T1-2N1 M0, AJCC/TNM 6th edition)
  • Surgery with clear margins
  • Pre-operative medical imaging (at least CT, MRI, and/or PET-scan)

Exclusion Criteria:

  • Prior breast or thoracic radiotherapy
  • Pregnancy or lactation
  • Fertile patients without effective contraception
  • Psychiatric or addictive disorders

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: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Conventional radiotherapy
Conventional Long schedule Radiotherapy Arm
Radiation treatment delivered by conventional linear accelerator using matching fields
Other Names:
  • Arm I, Long schedule
Experimental: Tomotherapy
Short course schedule by tomotherapy
CT image guided intensity modulated radiation therapy delivered by the Tomotherapy HiArt system
Other Names:
  • Arm II, Short schedule, Helical Tomotherapy

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change from baseline in pulmonary function and heart function tests
Time Frame: From end of treatment up to 3 years after treatment
Assessment by pulmonary function tests and by heart echocardiography, compared with test values prior to treatment
From end of treatment up to 3 years after treatment

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Local-regional recurrences.
Time Frame: From end of treatment up to 15 years after treatment
Local-regional recurrences are assessed at time intervals as per the institution's standard practice for the clinical surveillance of patients.
From end of treatment up to 15 years after treatment

Collaborators and Investigators

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

Investigators

  • Study Director: Mark De Ridder, MD, PhD, Radiotherapy Department, Universitair Ziekenhuis Brussel
  • Principal Investigator: Vincent Vinh-Hung, MD, PhD, Radiotherapy-Oncology, Universitair Ziekenhuis Brussel

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

May 1, 2007

Primary Completion (Actual)

August 1, 2011

Study Completion (Anticipated)

December 1, 2017

Study Registration Dates

First Submitted

April 11, 2007

First Submitted That Met QC Criteria

April 11, 2007

First Posted (Estimate)

April 12, 2007

Study Record Updates

Last Update Posted (Actual)

May 16, 2017

Last Update Submitted That Met QC Criteria

May 12, 2017

Last Verified

May 1, 2017

More Information

Terms related to this study

Other Study ID Numbers

  • 2007/009
  • 2007-002025-69 (EudraCT Number)
  • SCIE2006-30 (Other Grant/Funding Number: Stichting tegen Kanker)
  • ANI47 (Other Identifier: VUB)

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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