Normal Tissue Oxygenation Following Radiotherapy

May 26, 2023 updated by: Ken Dornfeld, Essentia Health

This study involves women who have had a diagnosis of breast cancer, and have had a lumpectomy with radiation treatments completed in the past year.

The study will determine the level of oxygen in the skin of the breast that has been radiated, compared with the normal skin of the opposite breast.

The purpose of this study is to determine if there is a decrease in oxygen levels in the skin which has been radiated, hopefully to find a treatment to limit skin damage caused by radiation treatments, for women with breast cancer in the future.

Study Overview

Status

Completed

Conditions

Detailed Description

Successful completion of this study will provide data on changes in oxygenation in irradiated tissues. If changes are documented, this study would provide evidence supporting current models of tissue injury following radiotherapy. In addition, these data may provide a mechanistic rationale for clinical approaches to ameliorate the toxicities of radiotherapy. Finally, if a correlation exists between tissue oxygenation and toxicity, the rapid and simple tissue oxygenation test may provide a quantitative measure of toxicity and allow earlier and more precise assessment of both toxicity and efficacy of ameliorative therapies.

Study Type

Observational

Enrollment (Actual)

20

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

    • Minnesota
      • Duluth, Minnesota, United States, 55805
        • Essentia Health

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

Yes

Sampling Method

Non-Probability Sample

Study Population

Patients who have undergone breast conserving therapy consisting of lumpectomy and pPatients with breast cancer who received postoperative radiotherapy for breast conservation will be identified from tumor registry data and recruited into the study if they have completed radiotherapy less than one year ostoperative radiotherapy.

Description

Inclusion Criteria:

  1. Diagnosis of breast malignancy
  2. Completion of breast irradiation one year (+/- 8 weeks) prior.
  3. Surgical treatment with lumpectomy

Exclusion Criteria:

  1. Inability to tolerate the 20 minute transcutaneous oxygenation measurements
  2. Allergy to adhesives
  3. Bilateral disease or absence of control breast or previous radiotherapy to "control" breast
  4. More than one course of radiotherapy to the breast

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

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Tissue Oxygenation
Time Frame: One visit for 20 minutes
Transcutaneous oxygen detector is used to measure the partial pressure of oxygen. The unit detects electrolytes ionized by oxygen. The measuring electrode also heats the skin being measured to facilitate maximal bloodflow to the area.
One visit for 20 minutes

Secondary Outcome Measures

Outcome Measure
Time Frame
Skin and Soft Tissue Toxicity Will be Assessed Using the RTOG/EORTC Late Radiation Morbidity Scoring Schema When Oxygenation is Measured.
Time Frame: One visit
One visit

Collaborators and Investigators

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

Sponsor

Investigators

  • Principal Investigator: Kenneth L Dornfeld, MD, Essentia Health

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

April 1, 2008

Primary Completion (Actual)

January 1, 2009

Study Completion (Actual)

August 1, 2009

Study Registration Dates

First Submitted

May 9, 2008

First Submitted That Met QC Criteria

May 9, 2008

First Posted (Estimated)

May 13, 2008

Study Record Updates

Last Update Posted (Actual)

June 22, 2023

Last Update Submitted That Met QC Criteria

May 26, 2023

Last Verified

May 1, 2023

More Information

Terms related to this study

Other Study ID Numbers

  • 030804

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

publication

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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