Status:

ACTIVE_NOT_RECRUITING

Omission of Radiation in Patients With Her-2 Positive Breast Cancer

Lead Sponsor:

University of Kansas Medical Center

Conditions:

HER2-positive Breast Cancer

Eligibility:

FEMALE

40+ years

Phase:

NA

Brief Summary

The primary objective of this study is to describe the rate of local control in patients with her-2 positive early stage breast cancer with a complete response to chemotherapy and lumpectomy alone.

Detailed Description

Participants, ages 40 and older diagnosed with stage I or stage II her-2 positive, node negative breast cancer patients will be recommended to continue trastuzumab +/- pertuzumab therapy after surgery...

Eligibility Criteria

Inclusion

  • Inclusion Criteria:
  • Ability to understand and the willingness to sign a written informed consent.
  • Karnofsky Performance Status 50% to 100% (Appendix A).
  • Women 40 years of age or older with a diagnosis of invasive ductal carcinoma
  • Her-2 3+ or FISH ratio of 2.2 or higher, background gene expression with normal copy number
  • Only postmenopausal women will be eligible. Subjects will be classified as being postmenopausal if they have had:
  • No spontaneous menses \> 1 year, or
  • Bilateral surgical oophorectomy, or
  • No menses for \< 1 year with FSH and estradiol levels in according to institutional standards
  • cT1-2N0 on clinical staging (verified to have no suspicious axillary or internal mammary nodes on MRI or ultrasound)
  • Undergo neoadjuvant chemotherapy with a trastuzumab based regimen prior to surgery and plan for completion of one year of trastuzumab
  • Patients are required to undergo lumpectomy with sentinel lymph node biopsy
  • Pathologic review shows no evidence of residual disease in the tumor bed (to also include no evidence of residual DCIS)
  • Tumor bed should be no larger than 5 cm in size on pathologic review
  • Fibrotic area of prior tumor located at least 3 mm away from surgical margins
  • No evidence of treatment related change in the lymph nodes on pathologic review
  • Exclusion Criteria
  • Diagnosis of inflammatory breast cancer
  • Previously diagnosed malignancy excluding basal or squamous cell carcinoma of the skin (unless disease-free for 5 years or more)
  • Diagnosis of metastatic disease

Exclusion

    Key Trial Info

    Start Date :

    February 23 2018

    Trial Type :

    INTERVENTIONAL

    Allocation :

    ACTUAL

    End Date :

    July 16 2027

    Estimated Enrollment :

    12 Patients enrolled

    Trial Details

    Trial ID

    NCT03460067

    Start Date

    February 23 2018

    End Date

    July 16 2027

    Last Update

    March 27 2025

    Active Locations (1)

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    Page 1 of 1 (1 locations)

    1

    University of Kansas Medical Center/ Cancer Center

    Kansas City, Kansas, United States, 66190