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A Study of the Impact of Endocrine Therapy on Surgical Outcomes in People With Lobular Breast Cancer

RecruitingPhase 2Ages 50 Years - anyFemaleMemorial Sloan Kettering Cancer Center
NCT07483307 on ClinicalTrials.gov ↗
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In plain words

What the trial is, and whether it could suit you

The purpose of this study is to look at how effective neoadjuvant (before surgery) endocrine therapy (NET) is in participants with invasive lobular carcinoma (ILC) who have breast-conserving surgery (BCS). The main purpose of the study is to see if NET reduces the chance of having cancer cells at the edges of tissue removed during surgery (positive margins).

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📋 Eligibility rules (as published)
Inclusion Criteria: * Written informed consent by participant or legally authorized representative * Postmenopausal women aged ≥50 years with biopsy-proven cT2-T3 N0-1 ILC who opt to undergo and are medically fit to undergo BCS at enrollment. * Tumors of the ER+/HER2- subtype, defined as: 1. ER+: Positive for ER staining as indicated by ≥10% immunoreactive tumor nuclei. 2. HER2-: Immunohistochemistry assay demonstrating no or faint staining in ≤10% of tumor cells (IHC 0 or 1+) or negative by dual probe in situ hybridization assay. Exclusion Criteria: * Patients with prior ipsilateral breast cancer. * Patients with advanced regional disease (cN2/cN3) or stage 4 disease. * Patients who would benefit from neoadjuvant chemotherapy, per the treating medical oncologist. * Patients who are not candidates for definitive breast surgery (inoperable or stage 4 disease). * Patients with gadolinium allergy, precluding the use of breast MRI.
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What it tests

  • Neoadjuvant endocrine therapy
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Where

7 sites
Memorial Sloan Kettering Basking Ridge (Limited Protocol Activities)
Basking Ridge, United States
Memorial Sloan Kettering Monmouth (Limited Protocol Activities)
Middletown, United States
Memorial Sloan Kettering Bergen (Limited Protocol Activities)
Montvale, United States
Memorial Sloan Kettering Suffolk - Commack (Limited Protocol Activities)
Commack, United States
Memorial Sloan Kettering Westchester (Limited Protocol Activities)
Harrison, United States
Memorial Sloan Kettering Cancer Center (All Protocol Activities)
New York, United States
Memorial Sloan Kettering Nassau (Limited Protocol Activities)
Uniondale, United States
🤝 Taking part is your choice, and you can leave at any time. Only the trial team can confirm you are eligible — always decide together with your own doctor.
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