Using the Active Breathing Control Device to Reduce Radiation Side Effects to Critical Structures in Breast Cancer
A Pilot Study Investigating Active Breathing Coordinator (ABC) to Reduce Radiation Dose to Normal Structures in Breast Cancer Patients
3 other identifiers
interventional
112
1 country
1
Brief 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.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable breast-cancer
Started Oct 2002
Longer than P75 for not_applicable breast-cancer
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
October 1, 2002
CompletedFirst Submitted
Initial submission to the registry
May 19, 2006
CompletedFirst Posted
Study publicly available on registry
May 22, 2006
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 1, 2011
CompletedStudy Completion
Last participant's last visit for all outcomes
July 1, 2011
CompletedResults Posted
Study results publicly available
April 30, 2014
CompletedApril 30, 2025
April 1, 2025
8.8 years
May 19, 2006
January 27, 2014
April 28, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
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.
At time of radiation
Proportion of Patients With Reduction in Radiation
30 days
Secondary Outcomes (3)
Toxicity Evaluation
30 days post-treatment
Change in Organs at Risk (OAR) Dosimetric Paramaters
30 days post-treatment
Number of Participants With Toxicity of Treatment of Adjuvant Radiotherapy for Breast Cancer With the ABC Device.
30 days post-treatment
Study Arms (1)
Active Breathing Coordinator
EXPERIMENTALPatients breathe through the ABC device
Interventions
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.
Eligibility Criteria
You may qualify if:
- 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
You may not qualify if:
- Pregnant women
- Patients who have had previous ipsilateral breast or thoracic radiation therapy
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Thomas Jefferson University Hospital
Philadelphia, Pennsylvania, 19017, United States
Related Links
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Results Point of Contact
- Title
- Rani Anne, MD
- Organization
- Thomas Jefferson University
Study Officials
- PRINCIPAL INVESTIGATOR
Pramila Rani Anne, MD
Thomas Jefferson University
Publication Agreements
- PI is Sponsor Employee
- Yes
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NA
- Masking
- NONE
- Purpose
- SUPPORTIVE CARE
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
May 19, 2006
First Posted
May 22, 2006
Study Start
October 1, 2002
Primary Completion
July 1, 2011
Study Completion
July 1, 2011
Last Updated
April 30, 2025
Results First Posted
April 30, 2014
Record last verified: 2025-04