Radiation Therapy in Treating Patients With Stage 0-II Breast Cancer

December 1, 2023 updated by: M.D. Anderson Cancer Center

Assessing the Cosmesis and Toxicity of Partial Breast Irradiation Using Proton Beam Irradiation

This phase II trial studies the side effects and how well radiation therapy works in treating patients with stage 0-II breast cancer. Specialized radiation therapy that delivers a high dose of radiation directly to the tumor may kill more tumor cells and cause less damage to normal tissue.

Study Overview

Detailed Description

PRIMARY OBJECTIVES:

I. To assess the cosmesis, acute toxicity and late toxicity in patients treated with accelerated partial breast irradiation delivered with proton radiation.

SECONDARY OBJECTIVES:

I. To evaluate the convenience of accelerated partial breast irradiation and quality of life during accelerated partial breast irradiation.

II. To estimate the in-breast tumor control rates in patients treated with accelerated partial breast irradiation delivered with proton radiation.

III. Compare dosimetry to alternate treatment modalities.

OUTLINE:

Within 10 weeks of last breast cancer surgery, patients undergo accelerated partial breast irradiation (APBI) delivered with proton radiation twice daily (BID) for 5 days.

After completion of study treatment, patients are followed up at 6 weeks, 6 months, 1 year, and 18 months, then annually for 10 years.

Study Type

Interventional

Enrollment (Actual)

200

Phase

  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

    • Texas
      • Houston, Texas, United States, 77030
        • M D Anderson Cancer Center

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

Description

Inclusion Criteria:

Women who satisfy all of the following conditions are the only patients who will be eligible for this study.

  1. The patient must consent to be in the study and must have signed an approved consent form conforming with federal and institutional guidelines.
  2. Patients must be >/= 18 years old. (Adenocarcinoma of the breast is not seen in children)
  3. English and non-English speaking patient
  4. The patient must have stage 0, I, or II breast cancer. If stage II, the tumor size must be 3 cm or less.
  5. On histological examination, the tumor must be DCIS or invasive adenocarcinoma of the breast.
  6. Surgical treatment of the breast must have been lumpectomy. The margins of the resected specimen must be histologically free of tumor (DCIS and invasive).

    Re-excision of surgical margins is permitted.

  7. Gross disease must be unifocal with pathologic (invasive and/or DCIS) tumor size 3 cm or less. (Patients with microscopic multifocality are eligible as long as total pathologic tumor size is 3 cm or less.)
  8. Patients with invasive breast cancer are required to have axillary staging which can include sentinel node biopsy alone (if sentinel node is negative), sentinel node biopsy followed by axillary dissection or sampling with a minimum total of 6 axillary nodes (if sentinel node is positive), or axillary dissection alone (with a minimum of 6 axillary nodes). Axillary staging is not required for patients with DCIS.
  9. The target lumpectomy cavity must be clearly delineated and the target lumpectomy cavity/whole breast reference volume must be < 30% based on the postoperative/pre-enrollment CT scan.
  10. Patients are eligible if, based on the postoperative CT scan, PBI is judged to be technically deliverable.
  11. Patients with a history of non-breast malignancies are eligible if they have been disease-free for 5 or more years prior to enrollment and are deemed by their physician to be at low risk for recurrence. Patients with the following cancers are eligible if diagnosed and treated within the past 5 years: carcinoma in situ of the cervix, carcinoma in situ of the colon, melanoma in situ, and basal cell and squamous cell carcinoma of the skin.

Exclusion Criteria:

Women with one or more of the following conditions also are ineligible for this study.

  1. Men are not eligible for this study.
  2. Individuals that are considered to be cognitively impaired.
  3. T2 (> 3.0 cm), T3, stage III, or stage IV breast cancer.
  4. More than 3 histologically positive axillary nodes.
  5. Axillary nodes with definite evidence of microscopic or macroscopic extracapsular extension.
  6. Palpable or radiographically suspicious ipsilateral or contralateral axillary, supraclavicular, infraclavicular, or internal mammary nodes at time of enrollment unless there is histologic confirmation that these nodes are negative for tumor.
  7. Suspicious microcalcifications, or densities (in the ipsilateral or contralateral breast as documented on mammogram or breast ultrasound) unless biopsied and found to be benign.
  8. Non-epithelial breast malignancies such as sarcoma or lymphoma.
  9. Proven multicentric carcinoma (invasive cancer or DCIS) in more than one quadrant or separated by 4 or more centimeters.
  10. Paget's disease of the nipple.
  11. Synchronous bilateral invasive or non-invasive breast cancer.
  12. Surgical margins that cannot be microscopically assessed or are positive at pathologic evaluation. (If surgical margins are rendered free of disease by re-excision, the patient is eligible.)
  13. Clear delineation of the extent of the target lumpectomy cavity not possible.
  14. Treatment plan that includes regional nodal irradiation.
  15. Prior radiation to the index breast
  16. Documented diagnosis of collagen vascular disease, specifically dermatomyositis with a CPK level above normal or with an active skin rash, systemic lupus erythematosis, or scleroderma.
  17. Pregnancy or lactation at enrollment.
  18. Women of reproductive potential must agree to use an effective non-hormonal method of contraception during therapy.

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: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Treatment (APBI)
Within 10 weeks of last breast cancer surgery, patients undergo APBI delivered with proton radiation BID for 5 days.
Ancillary studies
Other Names:
  • Quality of Life Assessment
Undergo APBI delivered with proton radiation
Other Names:
  • APBI
Undergo APBI delivered with proton radiation
Other Names:
  • Proton Radiation Therapy
  • PBRT

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Patient-Reported Cosmesis Score
Time Frame: 1 year
Patient-reported cosmesis score on the Breast Cancer Treatment Outcomes Scale (BCTOS) at 1 year. Cosmesis scores range from 1 (excellent) to 4 (poor), and scores of 3 (fair) or more indicate adverse cosmetic outcomes.
1 year

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Rate of CTCAE Grade 3+ Confluent Moist Desquamation
Time Frame: Within 6 weeks of radiation therapy
Rate of CTCAE grade 3+ confluent moist desquamation estimated within 6 weeks of radiation therapy with a 90% credible interval. If we observe CTCAE grade 3+ confluent moist desquamation in only 20 patients, then our 90% credible interval will be 7% to 13%.
Within 6 weeks of radiation therapy
Percent of Patients with Local Failure
Time Frame: 10 years
Percent of patients with local failure at 10 years estimated with an exact 95% confidence interval. If there is 1 patient with local failure at 10 years, and researchers have follow-up on all patients at 10 years, then the upper limit of the exact 95% confidence interval will be 2.8%. If researchers don't have 10 years of follow-up on all patients researchers will use the product-limit estimator of Kaplan and Meier (1958) to estimate the local failure rate at 10 years.
10 years

Collaborators and Investigators

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

Investigators

  • Principal Investigator: Eric A Strom, M.D. Anderson Cancer Center

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.

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 (Actual)

November 15, 2010

Primary Completion (Estimated)

December 31, 2032

Study Completion (Estimated)

December 31, 2032

Study Registration Dates

First Submitted

November 19, 2010

First Submitted That Met QC Criteria

November 19, 2010

First Posted (Estimated)

November 22, 2010

Study Record Updates

Last Update Posted (Estimated)

December 7, 2023

Last Update Submitted That Met QC Criteria

December 1, 2023

Last Verified

December 1, 2023

More Information

Terms related to this study

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

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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