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Breast CancerNCT00328783

Using the Active Breathing Control Device to Reduce Radiation Side Effects to Critical Structures in Breast Cancer

A study testing Active Breathing Coordinator (ABC) and Radiation Therapy in people with Breast Cancer, run by Sidney Kimmel Comprehensive Cancer Center at Thomas Jefferson University at 1 site in United States.

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

The purpose of this study is to evaluate the use of a device that helps coordinate the breathing cycle in the radiation treatment of the breast in order to minimize the radiation dose to the normal structures around the breast. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Breast Cancer
What is being tested?
Active Breathing Coordinator (ABC) and Radiation Therapy
Could I receive a placebo?
No, everyone receives an active treatment
How many people
112 participants
Where
1 siteUnited States
Study dates
Oct 2002to Jul 2011
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
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Requiring adjuvant or post mastectomy radiation therapy with tangential fields or 3-fields
  • Adequate pulmonary function
  • Presence of 5 cc of the heart or liver with the simulation fields
  • Karnofsky Performance Status (KPS) equal to or greater than 70

Who cannot join

  • Pregnant women
  • Patients who have had previous ipsilateral breast or thoracic radiation therapy

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Thomas Jefferson University Hospital

    Philadelphia, Pennsylvania, 19017

Other trials in United States

About this study

Official title: A Pilot Study Investigating Active Breathing Coordinator (ABC) to Reduce Radiation Dose to Normal Structures in Breast Cancer Patients

The purpose of this study is to evaluate the use of a device that helps coordinate the breathing cycle in the radiation treatment of the breast in order to minimize the radiation dose to the normal structures around the breast.

Read the detailed description

The Active Breathing Coordinator (ABC) allows for temporary and reproducible immobilization of internal thoracic structures by monitoring the patient's breathing cycle and implementing a breath hold at a predefined lung volume level. While ABC is FDA approved and commercially available, only preliminary dosimetric data is available on a small number of patients with breast cancer. There is some data using ABC for intrathoracic malignancies, which shows that it is feasible and safe to use. ABC can be used to optimize the distance between chest wall, heart and liver. This allows adequate treatment of the breast and underlying chest wall while minimizing irradiated cardiac and liver volume.

Conditions
Breast Cancer
Being tested
Active Breathing Coordinator (ABC), Radiation Therapy
Keywords
Breast cancer, Active Breathing Control, Active Breathing Coordinator, ABC
Medical subject headings
Breast Neoplasms

What participants receive

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

  • Active Breathing Coordinator (ABC)Device

    Also called ABC

    The generated dose distributions from the free-breathing versus ABC plans will be compared to assess the volume of normal tissue, as well as target volume irradiated, utilizing dose-volume histograms.

  • Radiation TherapyRadiation

Study groups in NCT00328783
Study groupRoleWhat they receive
Active Breathing CoordinatorExperimentalPatients breathe through the ABC device
Receives: Device: Active Breathing Coordinator (ABC); Radiation: Radiation Therapy

What is being measured

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

  1. Dosimetric Evaluation Magnitude of Reduction in Irradiated Normal Tissues

    To evaluate the magnitude of reduction in irradiated normal tissues (heart and lung) when using the Active Breathing Coordinator (ABC) in breast patients, as compared to standard, free-breathing.

    The generated dose distributions from the free-breathing vs. ABC plans will be compared to assess the volume of normal tissue, as well as target volume irradiated, utilizing dose-volume histograms. Specifically, for the heart, the volume receiving 55 and 40 Gy will be evaluated; for the liver the volume receiving 50 and 36 Gy, and for the lung, the volume receiving 20 Gy. For the contralateral breast the volume receiving 20 Gy, 30 Gy and 50 Gy will be evaluated. Patients will be treated with the ABC device if there is at least 5 % relative reduction in the volume of a normal tissue irradiated to prescription dose.

    Measured: At time of radiation

  2. Proportion of Patients With Reduction in Radiation

    Measured: 30 days

Secondary outcomes (3)
  1. Toxicity Evaluation

    Number of participants that experienced grade three toxicity or higher as a result of treatment.

    Measured: 30 days post-treatment

  2. Change in Organs at Risk (OAR) Dosimetric Paramaters

    To evaluate the magnitude of change in Mean Heart Dose (MHD) and Left lung dose when using the Active Breathing Coordinator (ABC) in breast patients, as compared to standard, free-breathing.

    Measured: 30 days post-treatment

  3. Number of Participants With Toxicity of Treatment of Adjuvant Radiotherapy for Breast Cancer With the ABC Device.

    To monitor the toxicity of treatment of adjuvant radiotherapy for breast cancer with the ABC device.

    Measured: 30 days post-treatment

Timeline

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

  1. First posted22 May 2006 (estimated)
  2. Study startOct 2002
  3. Primary completionJul 2011
  4. Study completionJul 2011

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
Supportive care
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
112 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00328783
Sponsor's protocol ID
02U.282
Other IDs
2002-31, JT 1005
Status last verified
Apr 2025
First submitted
19 May 2006
Last updated
30 Apr 2025
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A study testing Active Breathing Coordinator (ABC) and Radiation Therapy in people with Breast Cancer, run by Sidney Kimmel Comprehensive Cancer Center at Thomas Jefferson University at 1 site in United States.

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 2 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 30 Apr 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 United States. 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 30 Apr 2014). 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?

Dosimetric Evaluation Magnitude of Reduction in Irradiated Normal Tissues (time frame: At time of radiation). 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?
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 30 Apr 2025.

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Clinical Trial NCT00328783 | AzTrials