[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100630102":3},{"organization":4,"armGroups":7,"interventions":14,"overallOfficials":22,"centralContacts":26,"locations":37,"responsibleParty":120,"collaborators":31,"id":122,"slug":123,"hasResults":124,"nctId":125,"briefTitle":126,"officialTitle":127,"acronym":31,"eligibilityCriteria":128,"healthyVolunteers":124,"sex":129,"minAge":130,"maxAge":31,"enrollmentInfo":131,"targetDuration":31,"studyType":134,"phases":135,"briefSummary":137,"conditions":138,"keywords":144,"overallStatus":40,"whyStopped":31,"lastUpdateSubmitDate":147,"lastUpdatePostDateStruct":148,"startDateStruct":151,"completionDateStruct":153,"leadSponsor":155,"locationsCount":156},{"fullName":5,"class":6},"Memorial Sloan Kettering Cancer Center","OTHER",[8],{"label":9,"type":10,"description":11,"interventionNames":12},"Participants with ER+\u002FHER2- Breast Cancer","EXPERIMENTAL","Participants will be postmenopausal women aged ≥50 years with biopsy-proven cT2-T3 N0-1 ILC, ER+\u002FHER2- subtype",[13],"Drug: Neoadjuvant endocrine therapy",[15],{"type":16,"name":17,"description":18,"armGroupLabels":19,"otherNames":20},"DRUG","Neoadjuvant endocrine therapy","The endocrine therapy used for the NET in this study will be anastrozole, letrozole, exemestane, or tamoxifen.",[9],[21],"NET",[23],{"name":24,"affiliation":5,"role":25},"Anita SKCCSC(P Mamtani, MD","PRINCIPAL_INVESTIGATOR",[27,33],{"name":28,"role":29,"phone":30,"phoneExt":31,"email":32},"Anita Mamtani, MD","CONTACT","646-888-6864",null,"mamtana1@mskcc.org",{"name":34,"role":29,"phone":35,"phoneExt":31,"email":36},"George Plitas, MD","646-888-5368","PlitasG@mskcc.org",[38,54,65,76,88,99,109],{"facility":39,"status":40,"city":41,"state":42,"zip":43,"country":44,"countryCode":45,"cosmosGeoPoint":46,"geoPoint":51,"contacts":52},"Memorial Sloan Kettering Basking Ridge (Limited Protocol Activities)","RECRUITING","Basking Ridge","New Jersey","07920","United States","US",{"type":47,"coordinates":48},"Point",[49,50],-74.54932,40.70621,{"lat":50,"lon":49},[53],{"name":28,"role":29,"phone":30,"phoneExt":31,"email":31},{"facility":55,"status":40,"city":56,"state":42,"zip":57,"country":44,"countryCode":45,"cosmosGeoPoint":58,"geoPoint":62,"contacts":63},"Memorial Sloan Kettering Monmouth (Limited Protocol Activities)","Middletown","07748",{"type":47,"coordinates":59},[60,61],-74.11709,40.39428,{"lat":61,"lon":60},[64],{"name":28,"role":29,"phone":30,"phoneExt":31,"email":31},{"facility":66,"status":40,"city":67,"state":42,"zip":68,"country":44,"countryCode":45,"cosmosGeoPoint":69,"geoPoint":73,"contacts":74},"Memorial Sloan Kettering Bergen (Limited Protocol Activities)","Montvale","07645",{"type":47,"coordinates":70},[71,72],-74.02292,41.04676,{"lat":72,"lon":71},[75],{"name":28,"role":29,"phone":30,"phoneExt":31,"email":31},{"facility":77,"status":40,"city":78,"state":79,"zip":80,"country":44,"countryCode":45,"cosmosGeoPoint":81,"geoPoint":85,"contacts":86},"Memorial Sloan Kettering Suffolk - Commack (Limited Protocol Activities)","Commack","New York","11725",{"type":47,"coordinates":82},[83,84],-73.29289,40.84288,{"lat":84,"lon":83},[87],{"name":28,"role":29,"phone":30,"phoneExt":31,"email":31},{"facility":89,"status":40,"city":90,"state":79,"zip":91,"country":44,"countryCode":45,"cosmosGeoPoint":92,"geoPoint":96,"contacts":97},"Memorial Sloan Kettering Westchester (Limited Protocol Activities)","Harrison","10604",{"type":47,"coordinates":93},[94,95],-73.71263,40.96899,{"lat":95,"lon":94},[98],{"name":28,"role":29,"phone":30,"phoneExt":31,"email":31},{"facility":100,"status":40,"city":79,"state":79,"zip":101,"country":44,"countryCode":45,"cosmosGeoPoint":102,"geoPoint":106,"contacts":107},"Memorial Sloan Kettering Cancer Center (All Protocol Activities)","10065",{"type":47,"coordinates":103},[104,105],-74.00597,40.71427,{"lat":105,"lon":104},[108],{"name":28,"role":29,"phone":30,"phoneExt":31,"email":31},{"facility":110,"status":40,"city":111,"state":79,"zip":112,"country":44,"countryCode":45,"cosmosGeoPoint":113,"geoPoint":117,"contacts":118},"Memorial Sloan Kettering Nassau (Limited Protocol Activities)","Uniondale","11553",{"type":47,"coordinates":114},[115,116],-73.59291,40.70038,{"lat":116,"lon":115},[119],{"name":28,"role":29,"phone":30,"phoneExt":31,"email":31},{"type":121,"investigatorFullName":31,"investigatorTitle":31,"investigatorAffiliation":31,"oldNameTitle":31,"oldOrganization":31},"SPONSOR","100630102","phase-2-a-study-of-the-impact-of-endocrine-therapy-on-surgical-outcomes-in-people-with-lobular-breast-cancer-100630102",false,"NCT07483307","A Study of the Impact of Endocrine Therapy on Surgical Outcomes in People With Lobular Breast Cancer","Impact of Neoadjuvant Endocrine Therapy on Surgical Outcomes in Patients With Stage 2 to 3 Invasive Lobular Carcinoma: A Prospective Study","Inclusion Criteria:\n\n* Written informed consent by participant or legally authorized representative\n* 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.\n* Tumors of the ER+\u002FHER2- subtype, defined as:\n\n  1. ER+: Positive for ER staining as indicated by ≥10% immunoreactive tumor nuclei.\n  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.\n\nExclusion Criteria:\n\n* Patients with prior ipsilateral breast cancer.\n* Patients with advanced regional disease (cN2\u002FcN3) or stage 4 disease.\n* Patients who would benefit from neoadjuvant chemotherapy, per the treating medical oncologist.\n* Patients who are not candidates for definitive breast surgery (inoperable or stage 4 disease).\n* Patients with gadolinium allergy, precluding the use of breast MRI.","FEMALE","50 Years",{"count":132,"type":133},176,"ESTIMATED","INTERVENTIONAL",[136],"PHASE2","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).",[139,140,141,142,143],"Breast Cancer","HER2-negative Breast Cancer","HER2 Negative Breast Carcinoma","ER+ Breast Cancer","Lobular Breast Carcinoma",[139,140,141,142,145,5,146],"26-095","Lobular Breast Cancer","2026-06-02",{"date":149,"type":150},"2026-06-04","ACTUAL",{"date":152,"type":150},"2026-03-13",{"date":154,"type":133},"2030-03-13",{"name":5,"class":6},7]