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Partial Breast Proton Therapy for Early Stage Breast Cancer

This study is ongoing, but not recruiting participants.
Information provided by (Responsible Party):
David Bush, Loma Linda University Identifier:
First received: March 7, 2011
Last updated: September 8, 2016
Last verified: September 2016
The purpose of this is to determine the efficacy and toxicity of proton therapy when used to deliver partial breast radiotherapy in patients with early stage breast cancer with low or intermediate risk factors.

Condition Intervention Phase
Breast Cancer
Radiation: Proton Beam Radiotherapy
Phase 2

Study Type: Interventional
Study Design: Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: Phase 2 Trial of Partial Breast Proton Therapy for Early Stage Breast Cancer With Low and Intermediate Risk Factors.

Resource links provided by NLM:

Further study details as provided by David Bush, Loma Linda University:

Primary Outcome Measures:
  • Rate of recurrence in the breast [ Time Frame: 5 years ]

Secondary Outcome Measures:
  • Rate of breast recurrence of low versus intermediate risk patients [ Time Frame: 5 years ]
  • Side-effects related to treatment [ Time Frame: 5 years ]
  • Disease Free Survival [ Time Frame: 5 years ]

Estimated Enrollment: 150
Study Start Date: May 2011
Estimated Study Completion Date: May 2023
Estimated Primary Completion Date: May 2023 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Partial Breast Proton Therapy
Two weeks of daily proton therapy delivered to the lumpectomy site.
Radiation: Proton Beam Radiotherapy
Daily proton beam radiotherapy is delivered to the site of the breast tumor in ten treatment sessions over two week as an outpatient.

Detailed Description:
Radiation therapy delivered to the whole breast is standard treatment following tumor removal for patients with early stage breast cancer. In selected patients, delivering the radiation treatment to only the part of the breast involved by the tumor may be a viable alternative. This can decrease the amount of normal tissues exposed to irradiation, potentially decrease side-effects and shorten the treatment time. Proton beam can decrease the volume of normal tissues treated compared to standard forms of radiotherapy. This study will recruit patients with early stage breast cancer following surgical removal to undergo partial breast radiotherapy with proton beam and determine the recurrence rates and side-effects of treatment.

Ages Eligible for Study:   40 Years to 80 Years   (Adult, Senior)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Breast carcinoma
  • DCIS
  • Age 40 years or higher
  • Primary tumor 3 cm or less
  • Lumpectomy with clip placement
  • Axillary node sampling
  • Negative margins

Exclusion Criteria:

  • Distant metastasis
  • Multicentric disease
  • Prior radiation or chemotherapy
  • Active collagen vascular disease
  • Pregnant or lactating
  • BRCA mutation
  • Lymph nodes with more than microscopic tumor involvement
  Contacts and Locations
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Please refer to this study by its identifier: NCT01310530

United States, California
Loma Linda University Medical Center / James M. Slater MD Proton Treatment Center / Department of Radiation Medicine / 11234 Anderson St.
Loma Linda, California, United States, 92354
Loma Linda University Medical Center
Loma Linda, California, United States, 92354
Sponsors and Collaborators
Loma Linda University
Principal Investigator: David A Bush, MD Radiation Medicine - Loma Linda University Medical Center
  More Information

Responsible Party: David Bush, Principal Inverstigator, Loma Linda University Identifier: NCT01310530     History of Changes
Other Study ID Numbers: 5110026
Study First Received: March 7, 2011
Last Updated: September 8, 2016

Keywords provided by David Bush, Loma Linda University:
Breast Cancer
Partial Breast
Proton Beam

Additional relevant MeSH terms:
Breast Neoplasms
Neoplasms by Site
Breast Diseases
Skin Diseases processed this record on May 25, 2017