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Breast CancerNCT00508352

Post-operative Radiation With IMRT in the Management of Stage IIB-III Breast Cancer

A study testing Helical tomotherapy IMRT in people with Breast Cancer, run by Ottawa Hospital Research Institute at 1 site in Canada.

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

Research has shown that treatment with conventional radiation techniques and chemotherapy following mastectomy or breast conserving surgery has resulted in better rates of locoregional control and overall survival in stage IIB-III breast cancer. Read more about this study

Who is it for?
Ages 18 years and older, women only
Conditions the study is for
Breast Cancer
What is being tested?
Helical tomotherapy IMRT
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
30 participants
Where
1 siteCanada
Study dates
Jan 2007to Oct 2009
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

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

  • Surgery with either mastectomy or breast conserving surgery
  • Presence and association of any of the following high risk pathological features present at time of surgery: stage pT3-4 and pN0 and central/medial location of tumour or any pT and pN2 (stage IIB-stage III)
  • All patients will have been treated previously with chemotherapy prior to radiation therapy
  • ECOG performance status of 2 or less

Who cannot join

  • Prior chest wall/breast or nodal radiation for other malignancies (i.e. Hodgkin disease)
  • HER2+ positive patients
  • Patients with diagnosis of metastatic disease
  • Prior or active malignancy except non-melanoma skin carcinoma within 5 years of the diagnosis of breast cancer

Trial locations and contacts

1 site in 1 country.

Canada1 site
  • The Ottawa Hospital Regional Cancer Centre

    Ottawa, Ontario, K1H 8L6

Other trials in Canada

About this study

Official title: Post-operative Locoregional Irradiation Using Helical Tomotherapy IMRT in the Management of Stage IIb-III Breast Cancer: a Feasibility Study

Research has shown that treatment with conventional radiation techniques and chemotherapy following mastectomy or breast conserving surgery has resulted in better rates of locoregional control and overall survival in stage IIB-III breast cancer. The current feasibility trial using the most recent advance in radiation therapy, namely helical tomotherapy intensity modulated radiation therapy (HT-IMRT), hopes to improve on the results of conventional radiation by decreasing the amount of radiation-induced toxicity in patients with stage IIb-III breast cancer.

Read the detailed description

The role of locoregional radiation therapy in the management of stage IIB and III breast cancer has evolved and continues to evolve. The exact role of locoregional radiation, including axillary, supraclavicular and internal mammary nodes is, however, not clear. Radiation-induced toxicity remains a limiting factor to expanding the indications for radiation therapy to axillary and internal mammary nodes in the treatment of stage IIB and III breast cancer. Excellent target coverage and normal tissue sparing of IMRT has been previously demonstrated dosimetrically and clinically. In this feasibility study, patients will receive 50 Gy of radiation therapy in 25 fractions to the chest wall and supraclavicular, axillary and IM nodal areas using HT-IMRT following breast conserving surgery or mastectomy and chemotherapy. Patients will also be eligible for a radiation boost to 12 Gy by HT-IMRT or HDR brachytherapy. It is expected that treatment with HT-IMRT will result in appreciably fewer side-effects following locoregional irradiation due to a reduction in normal tissue irradiation, as compared to conventional radiation therapy.

Conditions
Breast Cancer
Being tested
Helical tomotherapy IMRT
Keywords
breast, cancer, locoregional, IMRT, tomotherapy
Medical subject headings
Breast Neoplasms, Neoplasms

What participants receive

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

  • Helical tomotherapy IMRTProcedure or surgery

    Helical tomotherapy IMRT 50 Gy in 25 fractions, daily treatment

Study groups in NCT00508352
Study groupRoleWhat they receive
Helical tomotherapyExperimentalHelical tomotherapy IMRT 50 Gy in 25 fractions, daily treatment
Receives: Procedure: Helical tomotherapy IMRT

What is being measured

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

  1. Acute Radiation Effects (Less Than 90 Days Post Treatment)

    Grade 3 or higher radiation effects(less than 90 days post treatment)

    Measured: less than 90 days post treatment

  2. Moderate-late Pulmonary and Cardiac Radiation Effects

    Grade 3 or higher moderate-late pulmonary and cardiac radiation effects up to 1 year post radiation

    Measured: up to 1 year post radiation

Secondary outcomes (2)
  1. Rate of Local Recurrence

    Evaluate rate of local recurrence at 5 years

    Measured: 5 years

  2. Rate of Regional Recurrence

    Evaluate rate of regional recurrence at 5 years

    Measured: 5 years

Timeline

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

  1. First posted27 Jul 2007 (estimated)
  2. Study startJan 2007
  3. Primary completionOct 2009
  4. Study completionOct 2009

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
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
30 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00508352
Sponsor's protocol ID
2006277-01H
Status last verified
May 2025
First submitted
25 Jul 2007
Last updated
13 Jun 2025
Data monitoring committee
No

Publications

  • Caudrelier JM, Meng J, Esche B, Grimard L, Ruddy T, Amjadi K. IMRT sparing of normal tissues in locoregional treatment of breast cancer. Radiat Oncol. 2014 Jul 22;9:161. doi: 10.1186/1748-717X-9-161.

    PubMed 25052720

Questions about this trial

What is this clinical trial studying?

A study testing Helical tomotherapy IMRT in people with Breast Cancer, run by Ottawa Hospital Research Institute at 1 site in Canada.

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 4 inclusion and 4 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 13 Jun 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Canada. Whether a site is taking part right now should be confirmed with that site. See every site.

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?

Yes. Results are posted in the registry (first posted 13 Jun 2025). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Acute Radiation Effects (Less Than 90 Days Post Treatment) (time frame: less than 90 days post treatment). The study lists 2 primary outcomes in all. 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 NCT00508352, which also lists 1 linked publication.

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 13 Jun 2025.

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