Not medical advice. This website is not medical advice, a diagnosis, a match to a trial, or a recommendation to join a study. Listings are plain-English rewrites of public ClinicalTrials.gov records. Whether a site is still enrolling, and whether you qualify, can only be confirmed by the study team and your clinician. Source registry: ClinicalTrials.gov. Editorial rules: methodology.

92 recruiting in this ClinicalTrials.gov snapshot · reviewed 2026-08-17

Breast cancer clinical trials, in English

Breast cancer studies on ClinicalTrials.gov cover early-stage, metastatic, hormone-receptor, HER2, and triple-negative disease. This hub lists recruiting records from the official US registry, rewritten in plain English, with the NCT number on every card. A listing here is not a match, a referral, or a claim that a treatment works. Sourced from ClinicalTrials.gov. Not a recommendation to join any study.

How to read this list

Each headline is a rewrite of registry fields (phase, intervention, condition). Open the NCT link before you call a site. Eligibility is decided by the study team, not by this page. See how to find a trial and eligibility explained.

Phases in this snapshot: Not a traditional drug phase (27) · Phase 2 (18) · Phase 1 (16) · Phase 1 / Phase 2 (13) · Phase 3 (13) · Phase 4 (4) · Early phase 1 (1)

Cities that appear on these records

  • Las Vegas, Nevada · 67
  • Madrid, Spain · 62
  • Seoul, South Korea · 57
  • New York, New York · 50
  • Houston, Texas · 49
  • Boston, Massachusetts · 39
  • Barcelona, Spain · 38
  • Nashville, Tennessee · 37

Browse by US state · city hubs

Intervention hubs that overlap this snapshot: Palbociclib · Trastuzumab deruxtecan · Pembrolizumab · Nivolumab · Osimertinib · Sotorasib

RecruitingPhase 2Bethesda, Maryland
Phase 2: testing Pembrolizumab (Keytruda) for Metastatic Colorectal Cancer

Background: The NCI Surgery Branch has developed an experimental therapy that involves taking white blood cells from patients' tumors, growing them in the laboratory in large numbers, and then giving the cells back to the patient. These cells are called Tumor Infiltrating Lymphocytes, or TIL and we have given this type of treatment to over 200 patients with melanoma.

NCT01174121 · Official ClinicalTrials.gov record · National Cancer Institute (NCI)

RecruitingNot a traditional drug phaseBoston, Massachusetts
Not a traditional drug phase: Breast Cancer-Related Lymphedema Screening for Lymphedema

The primary objectives of this study are twofold: 1) to detect and determine the level of symptoms, functional disability, and changes in quality of life that breast cancer patients experience from changes in their arms during and after treatment for breast cancer by collecting patient reported outcome measures, objective measurements, and clinical information in a prospectively maintained database and 2) to improve breast cancer-related lymphedema outcomes by early detection using objective measurements and symptoms assessments and assess these outcomes by maintaining the data in a database in order to contribute to the literature. The secondary aim of this study is to assess extracellular fluid content in the upper extremity, breast, and/or trunk of patients treated for breast cancer before, during, and after treatment in order to better understand the role of bioimpedance spectroscopy in lymphedema screening.

NCT01521741 · Official ClinicalTrials.gov record · Massachusetts General Hospital

RecruitingPhase 2Boston, Massachusetts
Phase 2: testing Palbociclib for Metastatic Malignant Neoplasm to Brain

This research study is studying This research study is studying the how well it works and safety of the following study drugs as a possible treatment for recurrent central nervous system (CNS) metastases: * Palbociclib alone (Cohort 1) * The combination of palbociclib and pembrolizumab (Cohort 2) Pfizer and Merck, pharmaceutical companies, are supporting this research study by providing the study drugs as well as funding for research activities.

NCT02896335 · Official ClinicalTrials.gov record · Massachusetts General Hospital

RecruitingNot a traditional drug phaseAnchorage, Alaska
Not a traditional drug phase: Usual care disease monitoring for Anatomic Stage IV Breast Cancer AJCC v8

This randomly assigned research trial studies how well serum tumor marker directed disease monitoring works in monitoring patients with hormone receptor positive Her2 negative breast cancer that has spread to other places in the body. Using markers to prompt when scans should be ordered may be as good as the usual approach to monitoring disease.

NCT03723928 · Official ClinicalTrials.gov record · SWOG Cancer Research Network

RecruitingNot a traditional drug phaseHouston, Texas
Not a traditional drug phase: testing Indocyanine Green for Anatomic Stage III Breast Cancer AJCC v8

This pilot trial studies whether a procedure called lymphovenous bypass would prevent lymphedema (arm swelling) in patients with inflammatory breast cancer or non-inflammatory breast cancer that has spread to nearby tissues or lymph nodes or melanoma. The lymphovenous bypass procedure creates a path for lymphatic fluid to flow away from the arms.

NCT03941756 · Official ClinicalTrials.gov record · M.D. Anderson Cancer Center

RecruitingNot a traditional drug phaseMontpellier
Not a traditional drug phase: testing Blood sampling for Cancer

The circulating tumoral biomarkers in the blood are the object of numerous researches for several decades. The potential clinical interests of these circulating biomarkers are diagnostic, prognostic, predictive of the efficiency of targeted therapies (according to the mutational profile of the cancer), and could allow the study of the mechanisms of resistance under process.

NCT04025541 · Official ClinicalTrials.gov record · Institut du Cancer de Montpellier - Val d'Aurelle

RecruitingPhase 2Los Angeles, California
Phase 2: testing PF-07220060 for Liposarcoma

This is a Phase 1/2A, open label, multicenter, nonrandomized, multiple dose, safety, tolerability, pharmacokinetic and pharmacodynamic study of PF-07220060 administered as a single agent and in combination with endocrine therapy. Part 1 includes dose escalation cohorts evaluating PF-07220060 as single agent or in combination with endocrine therapy or enzalutamide, as well as a food effect cohort and a DDI cohort.

NCT04557449 · Official ClinicalTrials.gov record · Pfizer

RecruitingNot a traditional drug phasePrato, Tuscany
Not a traditional drug phase: Thymidine kinase activity for Metastatic Breast Cancer

This is a multi-center biomarkers study aiming to prospectively collect biological samples from patients with ER+ and HER2-negative metastatic breast cancer, who are candidate to first-line treatment with an aromatase inhibitor and a CDK4/6 inhibitor as per standard clinical practice. Blood and tissue samples will be collected for biomarker analysis, including thymidine kinase1 activity, gene expression signatures and circulating tumor DNA.

NCT04660435 · Official ClinicalTrials.gov record · Fondazione Sandro Pitigliani

RecruitingPhase 1 / Phase 2Duarte, California
Phase 1 / Phase 2: testing Giredestrant for Inoperable, Locally Advanced or Metastatic, ER-positive Breast Cancer

This is a Phase Ib/II, open-label, multicenter, randomly assigned umbrella study in participants with breast cancer. The study is designed with the flexibility to open new treatment arms as new treatments become available, close existing treatment arms that demonstrate minimal clinical activity or unacceptable toxicity, or modify the patient population.

NCT04802759 · Official ClinicalTrials.gov record · Hoffmann-La Roche

RecruitingNot a traditional drug phaseAnchorage, Alaska
Not a traditional drug phase: Questionnaire Administration for Acute Lymphoblastic Leukemia

This study collects blood and tissue samples from patients with cancer and without cancer to evaluate tests for early cancer detection. Collecting and storing samples of blood and tissue from patients with and without cancer to study in the laboratory may help researchers develop tests for the early detection of cancers.

NCT05334069 · Official ClinicalTrials.gov record · Alliance for Clinical Trials in Oncology

RecruitingNot a traditional drug phaseDuarte, California
cfDNA Assay Prospective Observational Validation for Early Cancer Detection and Minimal Residual Disease

This is an watch-and-measure (no experimental treatment required) case-control study to train and validate a genome-wide methylome enrichment platform to detect multiple cancer types and to differentiate amongst cancer types. The cancers included in this study are brain, breast, bladder, cervical, colorectal, endometrial, esophageal, gastric, head and neck, hepatobiliary, leukemia, lung, lymphoma, multiple myeloma, ovarian, pancreatic, prostate, renal, sarcoma, and thyroid.

NCT05366881 · Official ClinicalTrials.gov record · Adela, Inc

RecruitingPhase 2Birmingham, Alabama
Phase 2: testing Alpelisib for Advanced Malignant Solid Neoplasm

This ComboMATCH patient screening trial is the gateway to a coordinated set of clinical trials to study cancer treatment directed by genetic testing. Patients with solid tumors that have spread to nearby tissue or lymph nodes (locally advanced) or have spread to other places in the body (advanced) and have progressed on at least one line of standard systemic therapy or have no standard treatment that has been shown to prolong overall survival may be candidates for these trials.

NCT05564377 · Official ClinicalTrials.gov record · National Cancer Institute (NCI)

RecruitingPhase 3Scottsdale, Arizona
Phase 3: testing Lasofoxifene in combination with abemaciclib for Metastatic Breast Cancer

The goal of this clinical trial is to assess the how well it works, whether it is safe and how hard side effects are to live with of the combination of lasofoxifene and abemaciclib compared to fulvestrant and abemaciclib for the treatment of pre- and postmenopausal women and men who have previously received ribociclib or palbociclib-based treatment and have locally advanced or metastatic estrogen receptor positive (ER+)/human epidermal growth factor 2 negative (HER2-) breast cancer with an estrogen receptor 1 (ESR1) mutation. The main question the study aims to answer is: • To compare the how well it works of the combination of lasofoxifene and abemaciclib with that of fulvestrant and abemaciclib Participants will receive either receive 5 mg/d of oral lasofoxifene plus oral abemaciclib 150 mg twice a day or the combination of fulvestrant 500 mg intramuscular (IM) on Days 1, 15, and 29 and then once monthly thereafter plus oral abemaciclib 150 mg twice a day.

NCT05696626 · Official ClinicalTrials.gov record · LeonaBio

RecruitingPhase 1 / Phase 2Los Angeles, California
Phase 1 / Phase 2: testing STX-478 for Breast Cancer

Study STX-478-101 (LY4064809) is a multipart, open-label, phase 1/2 study evaluating the safety, tolerability, pharmacokinetics (PK), and preliminary antitumor activity of STX-478 (LY4064809) in participants with advanced solid tumors with P13Ka mutations. Part 1 will evaluate STX-478 as this drug alone in participants with advanced solid tumors.

NCT05768139 · Official ClinicalTrials.gov record · Eli Lilly and Company

RecruitingPhase 2Boston, Massachusetts
Phase 2: testing Trastuzumab deruxtecan for Invasive Breast Cancer

This study wants to test the safety and effectiveness of an investigational drug combination (trastuzumab deruxtecan and durvalumab) to learn whether the intervention works in treating Human Epidermal growth factor Receptor-2 (HER2)-expressing inflammatory breast cancer. The names of the study drugs involved in this study are: * Trastuzumab deruxtecan * Durvalumab

NCT05795101 · Official ClinicalTrials.gov record · Filipa Lynce, MD

RecruitingPhase 3Birmingham, Alabama
Phase 3: testing Cyclophosphamide for Anatomic Stage II Breast Cancer AJCC v8

This phase III trial compares the addition of an immunotherapy drug (durvalumab) to usual chemotherapy versus usual chemotherapy alone in treating patients with MammaPrint High 2 Risk (MP2) stage II-III hormone receptor positive, HER2 negative breast cancer. Immunotherapy with monoclonal antibodies, such as durvalumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread.

NCT06058377 · Official ClinicalTrials.gov record · National Cancer Institute (NCI)

RecruitingPhase 1Los Angeles, California
Phase 1: testing MGC026 Dose Escalation for Advanced Solid Tumor

The study is designed to understand the safety, tolerability, pharmacokinetics, immunogenicity, and preliminary antitumor activity of vobramitamab tavatecan (MGC026) in participants with relapsed or refractory, unresectable, locally advanced or metastatic solid tumors The study has a dose escalation portion and a cohort expansion portion in Module A of the study. Combination therapy with pembrolizumab will occur in Module B of the study Participants will receive vobramitamab tavatecan by intravenous (IV) infusion.

NCT06242470 · Official ClinicalTrials.gov record · MacroGenics

RecruitingPhase 2Duarte, California
Phase 2: testing F-18 16 Alpha-Fluoroestradiol for Anatomic Stage IV Breast Cancer AJCC v8

This phase II trial tests how well stereotactic body radiation therapy (SBRT) works in treating patients with estrogen receptor positive (ER +) breast cancer that has spread from where it first started to other places in the body (metastatic) and has limited disease progression (oligoprogression). Currently, the standard of care for breast cancer patients with oligoprogressive disease is to change systemic therapy when progression occurs.

NCT06260033 · Official ClinicalTrials.gov record · City of Hope Medical Center

RecruitingPhase 1 / Phase 2Los Angeles, California
Phase 1 / Phase 2: testing Ifinatamab deruxtecan for Recurrent or Metastatic Solid Tumors

This study is designed to assess the how well it works and safety of ifinatamab deruxtecan (I-DXD) in the following tumor types: endometrial cancer (EC); head and neck squamous cell carcinoma (HNSCC); pancreatic ductal adenocarcinoma (PDAC); colorectal cancer (CRC); hepatocellular carcinoma (HCC); adenocarcinoma of esophagus, gastroesophageal junction, and stomach (Ad-Eso/GEJ/gastric); urothelial carcinoma (UC); ovarian cancer (OVC); cervical cancer (CC); biliary tract cancer (BTC); human epidermal growth factor 2 (HER2)-low breast cancer (BC); HER2 immunohistochemistry (IHC) 0 BC; cutaneous melanoma; and neuroendocrine carcinoma (NEC).

NCT06330064 · Official ClinicalTrials.gov record · Daiichi Sankyo

RecruitingPhase 3Chandler, Arizona
Phase 3: testing Palbociclib 125mg for Metastatic Breast Cancer

This study wants to generate evidence on an alternative dosing strategy for CDK4/6 inhibitors to help more patients with Metastatic Breast Cancer (MBC) (age ≥ 60 years) tolerate side effects and stay on treatment longer, to derive the most clinical benefit from these drugs. The primary objective of the CDK Study is to compare time to treatment discontinuation (TTD) on the approved dosing for palbociclib (125 mg orally daily on days 1-21 of 28-day cycle) or ribociclib (600 mg orally daily on days 1-21 of 28-day cycle) vs.

NCT06377852 · Official ClinicalTrials.gov record · American Society of Clinical Oncology

RecruitingPhase 1Scottsdale, Arizona
Phase 1: testing Sofe-M for Ovarian Neoplasms

This study wants to find out whether the study drug, Sofetabart Mipitecan (LY4170156), is safe, tolerable and effective in participants with advanced solid tumors. The study is conducted in three parts - phase Ia (dose-escalation, dose-optimization), phase Ib (dose-expansion), and phase 2 (dose expansion).

NCT06400472 · Official ClinicalTrials.gov record · Eli Lilly and Company

RecruitingPhase 1Little Rock, Arkansas
Phase 1: testing NKT3964 for Solid Tumor

The goal of the this drug alone Dose Escalation phase (Part 1) of the study is to measure the safety, tolerability, pharmacokinetics (PK) and preliminary anti-tumor activity to determine the preliminary recommended dose for expansion (RDE) of NKT3964 in adults with advanced or metastatic solid tumors. The goal of the this drug alone Expansion phase of the study (Part 2) is to measure the preliminary anti-tumor activity of NKT3964 at the RDE based on objective response rate (ORR) and determine the preliminary recommended Phase 2 dose (RP2D).

NCT06586957 · Official ClinicalTrials.gov record · NiKang Therapeutics, Inc.

RecruitingPhase 1 / Phase 2Beverly Hills, California
Phase 1 / Phase 2: testing BNT323 for Locally Advanced Breast Cancer

This is a Phase I/II, multi-site, open-label, two-part study designed to measure the how well it works, safety, optimized dose and contribution of components of BNT323 (also known as trastuzumab pamirtecan and DB-1303) in combination with BNT327 (also known as pumitamig and PM8002) in participants with hormone receptor-positive (HR+) or hormone receptor-negative (HR-), Human epidermal growth factor receptor (HER)2-positive, HER2-low (immunohistochemistry \[IHC\] 1+ or IHC 2+/in situ hybridization -), HER2-ultralow (IHC 0, with membrane staining) or HER2-null breast cancer (BC), or triple-negative breast cancer (TNBC).

NCT06827236 · Official ClinicalTrials.gov record · BioNTech SE

RecruitingPhase 3Mobile, Alabama
Phase 3: testing Sacituzumab tirumotecan for Triple Negative Breast Neoplasms

Researchers want to know if sacituzumab tirumotecan given alone or with pembrolizumab can treat triple negative breast cancer (TNBC). The main goal of this study is to learn if people treated with sacituzumab tirumotecan alone or with pembrolizumab live longer overall or without the cancer growing or spreading compared to people treated with chemotherapy.

NCT06841354 · Official ClinicalTrials.gov record · Merck Sharp & Dohme LLC

RecruitingPhase 4Los Angeles, California
Phase 4: Artificial intelligence (AI) decision-support tool for Breast Cancer Screening

The goal of this clinical trial is to compare patient-centered outcomes when screening digital breast tomosynthesis (DBT) exams are interpreted with versus without a leading FDA-cleared artificial intelligence (AI) decision-support tool in real-world U.S. settings and to assess patients' and radiologists' perspectives on AI in medicine.

NCT06934239 · Official ClinicalTrials.gov record · Jonsson Comprehensive Cancer Center

RecruitingEarly phase 1Roma, ROMA
Early phase 1: testing CDK4/6 Inhibitor (Palbociclib, Ribociclib, Abemaciclib) for Medulloblastoma, Childhood

Medulloblastoma (MB), a rare yet critical pediatric brain tumor, is divided into 4 molecular subgroups (WNT, SHH, Group 3, Group 4), each with distinct genetic profiles. Despite diagnostic and therapeutic advances, neurotoxicity from standard treatments (resection, radiotherapy, chemotherapy) and the need for long-term care remain challenges.

NCT06959979 · Official ClinicalTrials.gov record · Fondazione Policlinico Universitario Agostino Gemelli IRCCS

RecruitingPhase 3Gilbert, Arizona
Phase 3: testing Sacituzumab tirumotecan for Breast Neoplasms

Researchers are looking for new ways to treat types of breast cancer that are both: * High-risk, which means the cancer may have a higher chance of getting worse or coming back after treatment * Early-stage, which means the cancer is in the breast or the lymph nodes around the breast The 2 types of breast cancer in this study are triple-negative breast cancer (TNBC) and hormone receptor (HR)-low positive/human epidermal growth factor receptor-2 (HER2) negative breast cancer. These cancers have zero or a low amount of a protein called HER2 and other proteins that attach to the hormones estrogen or progesterone.

NCT06966700 · Official ClinicalTrials.gov record · Merck Sharp & Dohme LLC

RecruitingPhase 2Phoenix, Arizona
Phase 2: testing Evorpacept (ALX148) for Breast Cancer, Metastatic

The Substudy Protocol ASPEN-09-03 is a Phase 2, single-arm, multicenter study evaluating the how well it works, safety, and tolerability of evorpacept in combination with trastuzumab and chemotherapy in participants with HER2-positive metastatic breast cancer who have previously received trastuzumab-deruxtecan. ASPEN-09-03 is a substudy under Master Protocol ASPEN-09, and additional substudies are as follows: * Metastatic colorectal cancer (CRC) - dose escalation phase to evaluate evorpacept in combination with other drugs.

NCT07007559 · Official ClinicalTrials.gov record · ALX Oncology Inc.

RecruitingNot a traditional drug phaseDublin, California
Not a traditional drug phase: Exercise intervention for Localized Malignant Solid Neoplasm

This clinical trial studies whether an exercise program can be successfully delivered to patients receiving treatment for cancer through virtual sessions and allow patients to exercise in their own home. Treatments for cancer can cause side effects such as fatigue and loss of strength.

NCT07059884 · Official ClinicalTrials.gov record · Alliance for Clinical Trials in Oncology

RecruitingPhase 3Daphne, Alabama
Phase 3: testing Patritumab deruxtecan for Breast Neoplasms

Researchers are looking for other ways to treat breast cancer (BC) that is hormone receptor-positive and human epidermal growth factor receptor 2-negative (HR+/HER2-) and either unresectable locally advanced or metastatic. * HR positive (HR+) means the cancer cells have proteins that attach to estrogen or progesterone (hormones) which help the cancer to grow and spread * HER2 negative (HER2-) means the cancer cells have a low amount of a protein called HER2 * Unresectable locally advanced means the cancer cannot be completely removed by surgery and has spread into nearby tissue or muscles * Metastatic means the cancer has spread to other parts of the body Treatment for this type of breast cancer usually includes endocrine therapy (ET) and sometimes a second treatment.

NCT07060807 · Official ClinicalTrials.gov record · Merck Sharp & Dohme LLC

RecruitingNot a traditional drug phaseAthens
Mechanisms of Response and Resistance to Innovative Treatments in Patients With Locally Advanced or Metasta…

Ample evidence has highlighted the significant clinical benefit of novel therapies for many patients with advanced breast cancer (aBC). The use of CDK inhibitors, antibody-drug conjugates (ADCs), immune checkpoint inhibitors (ICIs), and PARP inhibitors as first-line or subsequent treatments has improved progression-free survival (PFS) rates compared to conventional therapies.

NCT07066917 · Official ClinicalTrials.gov record · Hellenic Cooperative Oncology Group

RecruitingPhase 2Abbotsford, Victoria
Phase 2: testing Psilocybin therapy for Adjustment Disorder

This study is assessing the how well it works and safety of NPX-5 in psilocybin-assisted psychotherapy for the treatment of adjustment disorder due to cancer diagnosis. This study is for people who are aged between 18 and 80 years old and suffer from anxiety after adjusting to an acutely stressful event of their cancer diagnosis.

NCT07072728 · Official ClinicalTrials.gov record · Psyence Australia Pty Ltd

RecruitingPhase 1 / Phase 2Shanghai, Shanghai Municipality
Phase 1 / Phase 2: testing T-DXd for Breast Cancer

Multiple trials confirm systemic T-DXd how well it works in HER2+ breast cancer with leptomeningeal/brain metastases, yet median LM survival remains 3-4 months, highlighting unmet needs. While systemic therapies improve survival, intracranial disease control remains limited due to poor BBB penetration.

NCT07134153 · Official ClinicalTrials.gov record · Fudan University

RecruitingPhase 1Boston, Massachusetts
Phase 1: testing Pidnarulex for Anatomic Stage III Breast Cancer AJCC v8

This phase I trial tests the safety, side effects, and best dose of pidnarulex in combination with trastuzumab deruxtecan in treating patients with breast cancer and other solid tumors that express varying levels of a protein called HER2 and that has spread from where it first started (primary site) to other places in the body (metastatic), that cannot be removed by surgery (unresectable), or that has spread to nearby tissue or lymph nodes (locally advanced). Pidnarulex is an enzyme inhibitor that causes cell death and prevents tumor cell growth.

NCT07137416 · Official ClinicalTrials.gov record · National Cancer Institute (NCI)

RecruitingPhase 3Anchorage, Alaska
Phase 3: testing LY4064809 for Breast Neoplasms

The purpose of the study is to assess the how well it works and safety of the addition of Tersolisib (LY4064809/STX-478) to other anti-cancer drugs as first treatment for advanced hormone receptor-positive (HR+)/human epidermal growth factor receptor 2-negative (HER2-) breast cancer. Participants can remain in the study as long as the drug is helping the cancer without unbearable side effects.

NCT07174336 · Official ClinicalTrials.gov record · Eli Lilly and Company

RecruitingPhase 4Angers
Phase 4: testing Pharmacokinetics blood samples for Locally Advanced or Metastatic Breast Cancers

This is a multicenter, prospective, non-randomly assigned, open-label, pharmacokinetic study, aiming to compare the plasma exposure of the payload (free-DXd) in patients treated by T-DXd for locally advanced or metastatic breast cancer according to their body-mass index (BMI). The primary objective is to compare plasma exposition of the payload (free-DXd) between overweight or obese (body-mass index (BMI)\>25) and normal weight (body-mass index (BMI)≤25) breast cancer patients during the first 3 cycles of Trastuzumab-Deruxtecan (T-DXd).

NCT07195344 · Official ClinicalTrials.gov record · Institut Claudius Regaud

RecruitingNot a traditional drug phaseXiamen, Fujian
Not a traditional drug phase: testing Inavolisib for Locally Advanced Breast Cancer

The main purpose of this study is to measure the effectiveness of inavolisib based regimen in participants with endocrine-resistant, phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha gene (PIK3CA)-mutated, hormone receptor-positive (HR+), human epidermal growth factor receptor 2-negative (HER2-) locally advanced or metastatic breast cancer (LA/mBC), following on or after completing adjuvant endocrine therapy in routine clinical practice in China.

NCT07347600 · Official ClinicalTrials.gov record · Hoffmann-La Roche

RecruitingPhase 4Tanta, Elgharbeya
Phase 4: testing Dapagliflozin (5-10 mg daily) - SGLT2 Inhibitor Therapy for Breast Cancer

Background: Breast cancer is the most frequently diagnosed malignancy among women worldwide and a major cause of morbidity and mortality. Anthracycline-based chemotherapy, particularly doxorubicin, remains a cornerstone of treatment; however, its clinical utility is limited by dose-dependent cardiotoxicity that can lead to irreversible cardiac dysfunction and heart failure.

NCT07436663 · Official ClinicalTrials.gov record · Tanta University

RecruitingPhase 3Birmingham, Alabama
Phase 3: testing BGB-43395 for HR+/HER2- Breast Cancer

This study wants to investigate the how well it works and safety of BGB-43395 in combination with letrozole compared with investigator's choice of cyclin-dependent kinase 4/6 inhibitor (CDK4/6i) in combination with letrozole in patients with advanced or metastatic hormone receptor positive (HR+)/human epidermal growth factor receptor 2 negative (HER2-) breast cancer (BC) who have not received prior systemic treatment for advanced or metastatic disease.

NCT07492641 · Official ClinicalTrials.gov record · BeOne Medicines

RecruitingPhase 1Los Angeles, California
Phase 1: testing RGT-490 for Breast Cancer

This is a phase 1/1b, open-label, multicenter study consisting of sequential parts designed to measure the safety, tolerability, and effects pharmacokinetic (PK) profile, and antitumor activity of RGT-490, an investigational oral therapy, in adults with locally advanced or metastatic solid tumors including breast cancer. Participants enrolled in the study have advanced disease that is not amendable to curative treatment and whose tumors harbor alterations in the PI3KCA gene.

NCT07524322 · Official ClinicalTrials.gov record · Regor Pharmaceuticals Inc.

RecruitingPhase 3Jonesboro, Arkansas
Phase 3: testing Cyclin-Dependent Kinase 4 Inhibitor for Anatomic Stage IV Breast Cancer AJCC v8

This phase III trial evaluates the effect of adding locoregional therapy (surgery and radiation) and metastasis-directed stereotactic body radiation therapy (SBRT) to standard systemic therapy following standard HER2-targeted systemic therapy, compared to standard systemic therapy alone, in treating patients with HER2-positive stage IV breast cancer that has spread from where it first started (primary site) to other places in the body (metastatic) or to a limited number of sites (oligometastatic). The usual approach for patients with (oligo)metastatic HER2-positive breast cancer is systemic drug treatment, which means medicines that travel through the whole body to treat both the breast and any areas where the cancer has spread.

NCT07578116 · Official ClinicalTrials.gov record · SWOG Cancer Research Network

RecruitingPhase 2Shanghai, Shanghai Municipality
Phase 2: testing Paclitaxel polymer micelles combined with trastuzumab, pertuzumab, and adrelumab for Advanced HER2-positive Breast Cancer

This study is a randomly assigned, open-label, controlled, multicenter Phase II trial conducted in patients with advanced HER2-positive breast cancer, aimed at evaluating the how well it works and safety of paclitaxel polymer micelles for injection combined with trastuzumab and adalimumab versus the paclitaxel-based regimen combined with trastuzumab as first-line treatment. Eligible subjects with histologically or cytologically confirmed advanced HER2-positive breast cancer were enrolled after obtaining informed consent.

NCT07581795 · Official ClinicalTrials.gov record · Fudan University

RecruitingPhase 1Los Angeles, California
Phase 1: testing ITI-5000 mRNA Vaccine for Triple Negative Breast Cancer (TNBC)

This study tests an investigational cancer vaccine called ITI-5000 in people who have completed standard treatment for early-stage triple-negative breast cancer (TNBC). ITI-5000 is a self-amplifying RNA (saRNA) vaccine that instructs the immune system to recognize and attack cancer cells expressing two proteins found on TNBC cells-HERV-K and CT83-fused with a molecule called LAMP-1 that helps the immune system respond more strongly.

NCT07652242 · Official ClinicalTrials.gov record · Immunomic Therapeutics, Inc.

RecruitingNot a traditional drug phaseBirmingham, Alabama
Not a traditional drug phase: INSPIRE (INtegrating Systematic PatIent-Reported Evaluations) for Breast Cancer

The purpose of the study is to characterize baseline multidisciplinary tumor board (MDTB) context and variability, measure the relationship between baseline fitness of patients with cancer and initial treatment recommendations, and assess the impact of the INSPIRE intervention, which involves including electronic patient reported outcomes (ePROs) within MDTB on MDTB discussion content, provider burden, treatment recommended and received, healthcare utilization, and patient-reported outcomes.

NCT07671937 · Official ClinicalTrials.gov record · University of Alabama at Birmingham

RecruitingPhase 3Columbia, Maryland
Phase 3: testing Trastuzumab deruxtecan for Advanced Breast Cancer

This study will evaluate a structured sequential treatment strategy starting with T-DXd + pertuzumab upfront therapy, followed by an optimized maintenance therapy with dual HER2+blockade + CDK4/6i + ET and the opportunity to retreat with T-DXd once patients progress under maintenance aimed to maximizing disease control, optimizing tolerability, and preserving T-DXd as a future therapeutic option, while ensuring participant safety and regulatory compliance in participants with HER2+/HR+ advanced/metastatic breast cancer.

NCT07683754 · Official ClinicalTrials.gov record · Daiichi Sankyo

RecruitingPhase 2Hefei, Anhui
Phase 2: testing SMP-656 Injection for HER2-positive Breast Cancer

The goal of this clinical trial is to learn if single-agent SMP-656 works to treat patients with HER2-positive locally advanced or metastatic breast cancer who have progressed after prior HER2-targeted topoisomerase inhibitor antibody-drug conjugate (ADC) treatment. It will also measure the safety of SMP-656 and identify the optimal dose for future trials.

NCT07726342 · Official ClinicalTrials.gov record · Chengdu SciMount Pharmatech Co., Ltd.

RecruitingNot a traditional drug phaseHanoi, Hanoi
Not a traditional drug phase: IHC analysis for ENPP1, cGAS, and FAP expression for HCC - Hepatocellular Carcinoma

This Vietnam-based watch-and-measure (no experimental treatment required) study examines ecto-nucleotide pyrophosphatase/phosphodiesterase 1/cyclic GMP-AMP synthase (ENPP1/cGAS) protein and stromal fibroblast activation protein (FAP) expression in multiple solid tumor samples using immunohistochemistry (IHC). The study involves no investigational treatments or participant-facing procedures.

NCT07808164 · Official ClinicalTrials.gov record · Tam Anh Research Institute

RecruitingPhase 2Indianapolis, Indiana
Phase 2: testing Hydroxychloroquine Sulfate (HCQ) for Aromatase Inhibitor Associated Musculoskeletal Symptoms (AIMSS)

This study wants to measure the effectiveness of hydroxychloroquine sulfate (a type of drug commonly used to treat joint pain caused by inflammation, swelling) in reducing joint pain associated with Aromatase Inhibitor Associated Musculoskeletal Syndrome (AIMSS) for patients with breast cancer.

NCT07825454 · Official ClinicalTrials.gov record · Indiana University

RecruitingPhase 1Maumee, Ohio
Phase 1: testing PRT13722 for Breast Cancer

This first-in-human, open-label, multicenter study will measure the safety, tolerability, pharmacokinetics, pharmacodynamics, and preliminary antitumor activity of PRT13722, an oral KAT6A protein degrader, in adults with locally advanced or metastatic Hormone receptor-positive, human epidermal growth factor receptor 2-negative (HR+/HER2-) breast cancer. PRT13722 will be evaluated as this drug alone and in combination with fulvestrant, abemaciclib plus fulvestrant, or imlunestrant to determine recommended dose(s) for expansion (RDE) and evaluate preliminary clinical activity.

NCT07905001 · Official ClinicalTrials.gov record · Prelude Therapeutics Incorporated

RecruitingPhase 4Madison, Wisconsin
Phase 4: testing 18Fluoroestradiol (18F-FES) for Lobular Breast Carcinoma

The investigators hope to learn if lobular breast cancer can be identified using a special procedure called a positron emission tomography (PET) magnetic resonance image (MRI) scan, collectively a PET/MRI scan, that uses a radioactive imaging agent called Fluorine 18 fluoroestradiol (18F-FES). This procedure may be able to define the extent of disease more clearly than the standard of care breast imaging exams.

NCT07910474 · Official ClinicalTrials.gov record · University of Wisconsin, Madison

RecruitingNot a traditional drug phaseHangzhou, Zhejiang
Not a traditional drug phase: Endoscopy-assisted breast-conserving surgery (SRRSHzb-EABCS) for Breast Cancer

This multicenter, open-label, prospective, randomly assigned controlled study compares a novel endoscopy-assisted breast-conserving surgery technique (SRRSHzb-EABCS) with conventional open breast-conserving surgery (CBCS) in women with breast cancer who wish to preserve their breast. Breast-conserving surgery followed by radiotherapy is a standard treatment for early-stage breast cancer.

NCT07920094 · Official ClinicalTrials.gov record · Sir Run Run Shaw Hospital

RecruitingPhase 1Fuzhou, Fujian
Phase 1: testing CG-7321 for Advanced Solid Tumors

This is a Phase I, open-label, multi-center study to measure the safety, tolerability, pharmacokinetics (PK), and preliminary how well it works of CG-7321 capsules as this drug alone or in combination with fulvestrant in subjects with advanced solid tumors. The study consists of: * Part Ia (this drug alone): Dose escalation (accelerated titration followed by 3+3 design) from 2mg to 50mg twice daily (BID), plus dose expansion cohorts in advanced solid tumors including HR+/HER2- breast cancer, ovarian cancer, gastric cancer, and other tumor types.

NCT07923214 · Official ClinicalTrials.gov record · Chengdu Cynogen Bio-pharmaceutical Tech. Co., Ltd.

RecruitingNot a traditional drug phaseNilufer, Bursa
Not a traditional drug phase: Ultrasound-Guided Serratus Posterior Superior Intercostal Plane Block for Postoperative Pain

This study compares two ultrasound-guided nerve block techniques for pain control after mastectomy for breast cancer: the pectoral nerve block (PECS II) and the serratus posterior superior intercostal plane (SPSIP) block. Both techniques involve injecting local anesthetic near nerves supplying the surgical area.

NCT07929090 · Official ClinicalTrials.gov record · Bursa City Hospital

FAQ: Breast cancer trials

How do I find recruiting Breast cancer clinical trials?

This hub lists 92 recruiting Breast cancer studies from a ClinicalTrials.gov snapshot, rewritten in plain English. Each card links to its NCT record. You can also search the official registry for “breast cancer” at https://clinicaltrials.gov/search?cond=breast%20cancer.

What does a Breast cancer trial page on PlainTrials include?

A phase explainer, a plain-English summary grounded in the brief summary, inclusion/exclusion extracted from the public eligibility block, sponsor name, and any central contact the sponsor published. It is not a match to a trial.

Where are Breast cancer studies located in this snapshot?

Sites that appear on these records include Las Vegas, Nevada; Madrid, Spain; Seoul, South Korea; New York, New York; Houston, Texas. A city on a record is not a guarantee that the site is taking new patients this week — call the NCT contact.

Can PlainTrials tell me if I qualify for a Breast cancer study?

No. Eligibility is decided by the study team using the protocol, labs, and consent. Our “who it is for” list is a readable extract of public inclusion text only.

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