Actively Recruiting

Phase 2
Age: 65Years +
FEMALE
NCT05472792

Compare Adjuvant Monotherapy With Endocrine or Accelerated Partial Breast Irradiation After Lumpectomy

Led by UNC Lineberger Comprehensive Cancer Center · Updated on 2025-05-23

90

Participants Needed

1

Research Sites

517 weeks

Total Duration

On this page

AI-Summary

What this Trial Is About

The aim of this prospective study is to investigate quality of life and oncologic outcomes in low-risk elderly breast cancer patients randomized to adjuvant therapy with accelerated partial breast irradiation (APBI) alone or endocrine therapy alone after lumpectomy. The study population will include women age 65 years and older with low-risk tumor characteristics (tumor size \<2cm, grade 1-2, node-negative). APBI will consist of 5 fractions of radiation therapy delivered every other day to the lumpectomy cavity. Endocrine therapy will be chosen by the treating medical oncologist with an aim of 5 years duration, as tolerated by the patient. Quality of life outcomes will be measured at 1 year following lumpectomy and compared between groups. We hypothesize that the use of APBI may be superior in terms of quality of life when compared to endocrine therapy alone following lumpectomy while providing equivalent rates of disease control and overall survival. In this phase II study, we anticipate enrolling 90 women at N.C. Cancer Hospital in Chapel Hill, NC.

CONDITIONS

Official Title

Compare Adjuvant Monotherapy With Endocrine or Accelerated Partial Breast Irradiation After Lumpectomy

Who Can Participate

Age: 65Years +
FEMALE

Eligibility Criteria

Eligible

You may qualify if you...

  • Willing and able to provide written informed consent and HIPAA authorization
  • Women aged 65 years or older with new invasive breast cancer
  • Tumor stage pT1
  • Estrogen and progesterone receptor positive (≥10% by immunohistochemistry)
  • HER2 negative by ASCO/CAP guidelines
  • Tumor grade 1 or 2
  • No lymph node involvement (N0)
  • No lymphovascular space invasion
  • Surgical margins at least 2 mm
  • Completed breast conserving surgery with or without lymph node biopsy or dissection
  • Suitable for accelerated partial breast irradiation as determined by radiation oncologist
  • Prior or concurrent cancers allowed if they do not interfere with treatment or safety
  • Participation in other trials allowed if no interference with this study
Not Eligible

You will not qualify if you...

  • Receiving pre- or post-operative systemic chemotherapy during study
  • Currently on anti-hormonal agents (must stop within 30 days before randomization if previously used)
  • Using hormonal replacement therapy (must stop within 30 days before randomization)
  • Multifocal or multicentric breast tumors
  • Tissue rearrangement in lumpectomy area
  • Synchronous bilateral breast cancer
  • Evidence of distant metastases
  • Prior radiation to breast or chest area
  • Autoimmune conditions increasing radiation risks
  • Poor medical risk from uncontrolled conditions making hormonal or radiation therapy unsafe

AI-Screening

AI-Powered Screening

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Trial Site Locations

Total: 1 location

1

University of North Carolina

Chapel Hill, North Carolina, United States, 27599

Actively Recruiting

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Research Team

L

Lori Stravers

CONTACT

J

Jessica Buddenbaum

CONTACT

How is the study designed?

Study Type

INTERVENTIONAL

Masking

NONE

Allocation

RANDOMIZED

Model

PARALLEL

Primary Purpose

TREATMENT

Number of Arms

2

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Compare Adjuvant Monotherapy With Endocrine or Accelerated Partial Breast Irradiation After Lumpectomy | DecenTrialz