{ "api_version": "1", "request": { "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Hormone+Receptor+Positive+%2F+HER2-negative+Breast+Cancer&page=4", "query": { "condition": "Hormone Receptor Positive / HER2-negative Breast Cancer", "page": 4 }, "page_size": 10 }, "pagination": { "page": 4, "page_size": 10, "total_count": 225, "total_pages": 23, "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Hormone+Receptor+Positive+%2F+HER2-negative+Breast+Cancer&page=5&page_size=10", "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Hormone+Receptor+Positive+%2F+HER2-negative+Breast+Cancer&page=3&page_size=10" }, "source": "remote", "last_synced_at": "2026-10-30T20:48:49.662Z", "attribution": "Data derived from public ClinicalTrials.gov records. The official record at https://clinicaltrials.gov/ remains the source of truth for current availability, contacts, and full study details.", "notes": [ "This endpoint exposes only public summary fields — no participant contact emails, phone numbers, or scraped investigator contact details.", "For contact information and full protocol detail, follow each trial's `official_url` to the ClinicalTrials.gov record.", "This API is a navigational aid. It does not provide medical advice, eligibility determinations, or compensation guarantees." ], "trials": [ { "nct_id": "NCT03128619", "title": "Copanlisib, Letrozole, and Palbociclib in Treating Patients With Hormone Receptor Positive HER2 Negative Stage I-IV Breast Cancer", "overall_status": "TERMINATED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "Estrogen Receptor Positive", "HER2/Neu Negative", "Invasive Breast Carcinoma", "Multifocal Breast Carcinoma", "Postmenopausal", "Progesterone Receptor Positive", "Stage I Breast Cancer", "Stage IA Breast Cancer", "Stage IB Breast Cancer", "Stage II Breast Cancer", "Stage IIA Breast Cancer", "Stage IIB Breast Cancer", "Stage III Breast Cancer", "Stage IIIA Breast Cancer", "Stage IIIB Breast Cancer", "Stage IIIC Breast Cancer", "Stage IV Breast Cancer" ], "interventions": [ { "name": "Biopsy of Breast", "type": "PROCEDURE" }, { "name": "Copanlisib", "type": "DRUG" }, { "name": "Laboratory Biomarker Analysis", "type": "OTHER" }, { "name": "Letrozole", "type": "DRUG" }, { "name": "Palbociclib", "type": "DRUG" }, { "name": "Pharmacological Study", "type": "OTHER" } ], "intervention_types": [ "PROCEDURE", "DRUG", "OTHER" ], "sponsor": "Jonsson Comprehensive Cancer Center", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "19 Years", "maximum_age": null, "sex": "ALL", "summary": "19 Years and older" }, "enrollment_count": 10, "start_date": "2017-08-02", "completion_date": "2022-03-31", "has_results": false, "last_update_posted_date": "2022-09-26", "last_synced_at": "2026-10-30T20:48:49.662Z", "location_count": 1, "location_summary": "Los Angeles, California", "locations": [ { "city": "Los Angeles", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT03128619" }, { "nct_id": "NCT02115282", "title": "Exemestane With or Without Entinostat in Treating Patients With Recurrent Hormone Receptor-Positive Breast Cancer That is Locally Advanced or Metastatic", "overall_status": "ACTIVE_NOT_RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Anatomic Stage III Breast Cancer AJCC v8", "Anatomic Stage IV Breast Cancer AJCC v8", "Breast Adenocarcinoma", "HER2/Neu Negative", "Locally Advanced Breast Carcinoma", "Metastatic Breast Carcinoma", "Recurrent Breast Carcinoma" ], "interventions": [ { "name": "Biospecimen Collection", "type": "PROCEDURE" }, { "name": "Computed Tomography", "type": "PROCEDURE" }, { "name": "Entinostat", "type": "DRUG" }, { "name": "Exemestane", "type": "DRUG" }, { "name": "Goserelin", "type": "DRUG" }, { "name": "Goserelin Acetate", "type": "DRUG" }, { "name": "Magnetic Resonance Imaging", "type": "PROCEDURE" }, { "name": "Placebo Administration", "type": "OTHER" }, { "name": "Quality-of-Life Assessment", "type": "OTHER" } ], "intervention_types": [ "PROCEDURE", "DRUG", "OTHER" ], "sponsor": "National Cancer Institute (NCI)", "sponsor_class": "NIH", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 608, "start_date": "2014-03-29", "completion_date": "2027-06-02", "has_results": true, "last_update_posted_date": "2026-10-22", "last_synced_at": "2026-10-30T20:48:49.662Z", "location_count": 652, "location_summary": "Birmingham, Alabama • Jonesboro, Arkansas • Carmichael, California + 460 more", "locations": [ { "city": "Birmingham", "state": "Alabama" }, { "city": "Jonesboro", "state": "Arkansas" }, { "city": "Carmichael", "state": "California" }, { "city": "Chico", "state": "California" }, { "city": "Chico", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT02115282" }, { "nct_id": "NCT06517212", "title": "Tirzepatide Weight Loss for MRD+ Early Breast Cancer", "overall_status": "RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Breast Cancer", "Breast Neoplasms", "Breast Cancers" ], "interventions": [ { "name": "Tirzepatide", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Baylor Research Institute", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 48, "start_date": "2024-11-26", "completion_date": "2030-12-31", "has_results": false, "last_update_posted_date": "2026-02-12", "last_synced_at": "2026-10-30T20:48:49.662Z", "location_count": 1, "location_summary": "Dallas, Texas", "locations": [ { "city": "Dallas", "state": "Texas" } ], "official_url": "https://clinicaltrials.gov/study/NCT06517212" }, { "nct_id": "NCT05579366", "title": "Rinatabart Sesutecan (Rina-S, PRO1184, GEN1184) for Advanced Solid Tumors (GCT1184-01/ PRO1184-001)", "overall_status": "RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1", "PHASE2" ], "conditions": [ "High Grade Epithelial Ovarian Cancer", "High Grade Serous Ovarian Cancer", "Primary Peritoneal Carcinoma", "Fallopian Tube Cancer", "Endometrial Cancer", "Non-small Cell Lung Cancer", "Epidermal Growth Factor Receptor (EGFR)-Mutated Non-Small Cell Lung Cancer (NSCLC)", "Mesothelioma", "Breast Adenocarcinoma", "Triple Negative Breast Cancer", "Hormone Receptor-positive/Her2 Negative Breast Cancer", "Platinum-resistant Ovarian Cancer (PROC)", "Platinum Sensitive Ovarian Cancer (PSOC)", "Primary Refractory Ovarian Cancer", "Uterine Cancer", "Cervical Cancer" ], "interventions": [ { "name": "Rina-S", "type": "DRUG" }, { "name": "Carboplatin", "type": "DRUG" }, { "name": "Bevacizumab", "type": "DRUG" }, { "name": "Pembrolizumab", "type": "DRUG" }, { "name": "Erythromycin", "type": "DRUG" }, { "name": "Itraconazole", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Genmab", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 952, "start_date": "2022-12-07", "completion_date": "2027-10", "has_results": false, "last_update_posted_date": "2026-10-07", "last_synced_at": "2026-10-30T20:48:49.662Z", "location_count": 37, "location_summary": "Phoenix, Arizona • Tucson, Arizona • Los Angeles, California + 32 more", "locations": [ { "city": "Phoenix", "state": "Arizona" }, { "city": "Tucson", "state": "Arizona" }, { "city": "Los Angeles", "state": "California" }, { "city": "San Diego", "state": "California" }, { "city": "Santa Barbara", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT05579366" }, { "nct_id": "NCT06008158", "title": "Evaluation of a Once Per Day Regimen of Accelerated Partial Breast Irradiation for Improved Breast Appearance in Pts w/Low Risk, Hormone Responsive Brst Ca", "overall_status": "ACTIVE_NOT_RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Anatomic Stage 0 Breast Cancer AJCC v8", "Anatomic Stage IA Breast Cancer AJCC v8", "Estrogen Receptor-Positive Breast Carcinoma", "HER2-Negative Breast Carcinoma" ], "interventions": [ { "name": "Accelerated Partial Breast Irradiation", "type": "RADIATION" } ], "intervention_types": [ "RADIATION" ], "sponsor": "City of Hope Medical Center", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "40 Years", "maximum_age": null, "sex": "FEMALE", "summary": "40 Years and older · Female only" }, "enrollment_count": 48, "start_date": "2023-09-29", "completion_date": "2027-05-26", "has_results": false, "last_update_posted_date": "2026-06-29", "last_synced_at": "2026-10-30T20:48:49.662Z", "location_count": 1, "location_summary": "Duarte, California", "locations": [ { "city": "Duarte", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT06008158" }, { "nct_id": "NCT01729884", "title": "Vaccine Therapy in Treating Patients With Stage IV Hormone Receptor Positive Breast Cancer", "overall_status": "TERMINATED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "HER2-positive Breast Cancer", "Male Breast Cancer", "Recurrent Breast Cancer", "Stage IV Breast Cancer" ], "interventions": [ { "name": "HER-2/neu peptide vaccine", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "University of Washington", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "19 Years", "maximum_age": null, "sex": "ALL", "summary": "19 Years and older" }, "enrollment_count": 3, "start_date": "2012-12", "completion_date": null, "has_results": false, "last_update_posted_date": "2017-04-11", "last_synced_at": "2026-10-30T20:48:49.662Z", "location_count": 1, "location_summary": "Seattle, Washington", "locations": [ { "city": "Seattle", "state": "Washington" } ], "official_url": "https://clinicaltrials.gov/study/NCT01729884" }, { "nct_id": "NCT07227233", "title": "Artificial Intelligence and Machine Learning to Guide CDK4/6 Inhibitor Rechallenge in Breast Cancer.", "overall_status": "RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Breast Cancer" ], "interventions": [ { "name": "A CDK4/6 inhibitor different from the first that the participant had received, plus fulvestrant.", "type": "DRUG" }, { "name": "Treatment of physician's choice", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "University of California, San Diego", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 105, "start_date": "2026-03-31", "completion_date": "2028-12", "has_results": false, "last_update_posted_date": "2026-04-09", "last_synced_at": "2026-10-30T20:48:49.662Z", "location_count": 1, "location_summary": "La Jolla, California", "locations": [ { "city": "La Jolla", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT07227233" }, { "nct_id": "NCT04498481", "title": "TREATMENT AND MONITORING PATTERNS AND CLINICAL OUTCOMES IN PATIENTS RECEIVING PALBOCICLIB COMBINATION TREATMENT (WITH AI OR FULVESTRANT) FOR HR+/HER2- A/MBC IN A COMMUNITY ONCOLOGY SETTING.", "overall_status": "COMPLETED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Breast Cancer" ], "interventions": [], "intervention_types": [], "sponsor": "Pfizer", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "FEMALE", "summary": "18 Years and older · Female only" }, "enrollment_count": 1, "start_date": "2018-03-01", "completion_date": "2018-07-01", "has_results": false, "last_update_posted_date": "2026-02-27", "last_synced_at": "2026-10-30T20:48:49.662Z", "location_count": 1, "location_summary": "New York, New York", "locations": [ { "city": "New York", "state": "New York" } ], "official_url": "https://clinicaltrials.gov/study/NCT04498481" }, { "nct_id": "NCT05554354", "title": "Testing the Use of Fulvestrant and Binimetinib Targeted Treatment for NF1 Mutation in Hormone Receptor-Positive Metastatic Breast Cancer (A ComboMATCH Treatment Trial)", "overall_status": "TERMINATED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Anatomic Stage IV Breast Cancer AJCC v8", "Metastatic HER2-Negative Breast Carcinoma", "Metastatic Hormone Receptor-Positive Breast Carcinoma" ], "interventions": [ { "name": "Binimetinib", "type": "DRUG" }, { "name": "Biopsy Procedure", "type": "PROCEDURE" }, { "name": "Biospecimen Collection", "type": "PROCEDURE" }, { "name": "Bone Scan", "type": "PROCEDURE" }, { "name": "Computed Tomography", "type": "PROCEDURE" }, { "name": "Echocardiography Test", "type": "PROCEDURE" }, { "name": "Fulvestrant", "type": "DRUG" }, { "name": "Magnetic Resonance Imaging", "type": "PROCEDURE" }, { "name": "Multigated Acquisition Scan", "type": "PROCEDURE" } ], "intervention_types": [ "DRUG", "PROCEDURE" ], "sponsor": "National Cancer Institute (NCI)", "sponsor_class": "NIH", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 1, "start_date": "2024-09-13", "completion_date": "2025-04-04", "has_results": true, "last_update_posted_date": "2026-03-03", "last_synced_at": "2026-10-30T20:48:49.662Z", "location_count": 192, "location_summary": "Birmingham, Alabama • Kingman, Arizona • Arroyo Grande, California + 155 more", "locations": [ { "city": "Birmingham", "state": "Alabama" }, { "city": "Kingman", "state": "Arizona" }, { "city": "Arroyo Grande", "state": "California" }, { "city": "Dublin", "state": "California" }, { "city": "Emeryville", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT05554354" }, { "nct_id": "NCT06224673", "title": "ARX788 for Treating Patients With HER2-low Locally Advanced Unresectable or Metastatic Breast Cancer", "overall_status": "RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "HER2 Low Breast Carcinoma", "Triple Negative Breast Cancer", "Hormone-receptor-positive Breast Cancer", "Hormone Receptor Positive Breast Carcinoma" ], "interventions": [ { "name": "ARX788", "type": "DRUG" }, { "name": "Computed Tomography (CT)", "type": "PROCEDURE" }, { "name": "Biospecimen Collection", "type": "PROCEDURE" }, { "name": "Amiloride", "type": "DRUG" } ], "intervention_types": [ "DRUG", "PROCEDURE" ], "sponsor": "Laura Huppert, MD, BA", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 36, "start_date": "2026-06-05", "completion_date": "2029-11-30", "has_results": false, "last_update_posted_date": "2026-06-11", "last_synced_at": "2026-10-30T20:48:49.662Z", "location_count": 1, "location_summary": "San Francisco, California", "locations": [ { "city": "San Francisco", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT06224673" } ] }