Clinical trials
ER+ Breast Cancer clinical trials
Below are recruiting er+ breast cancer clinical trials, each written for real people, not researchers. We’re tracking 558 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07281833RecruitingPhase 3
Testing capivasertib with hormone therapy for advanced breast cancer
This trial tests a new oral drug called capivasertib combined with standard hormone therapy for people with advanced breast cancer that is HR-positive and HER2-negative. It is for those whose cancer has progressed on previous hormone therapy and who have a specific gene change (PIK3CA, AKT1, or PTEN).
AnderlechtAges 18 years+ - NCT06790693RecruitingPhase 3
Inavolisib plus hormone therapy for advanced breast cancer
This trial tests a new targeted therapy, inavolisib, combined with standard hormone therapy and a CDK4/6 inhibitor for people with a specific genetic mutation (PIK3CA) in their hormone receptor-positive, HER2-negative advanced breast cancer that has not been treated before. It compares this combination to a placebo plus the same standard treatments.
Goodyear, ArizonaAges 18 years+ - NCT04360330Recruiting
MRI study in early breast cancer with specific lab markers
This study tests selected treatment decisions for women with early-stage breast cancer that has certain lab test results. It may help researchers better match care using MRI and tumor marker information.
Miami, FloridaAges 50 years+ - NCT04521764RecruitingPhase 1
Vaccine for Metastatic Breast Cancer
This trial tests a vaccine (MV-s-NAP) that is injected directly into a tumor to stimulate your immune system against breast cancer. It is for people with metastatic breast cancer that has spread despite prior treatments.
Rochester, MinnesotaAges 18 years+ - NCT07106632RecruitingPhase 3
Genomic test to guide chemotherapy in young women with breast cancer
This trial uses a genomic test called Prosigna to help decide whether young women with hormone-sensitive breast cancer need chemotherapy after surgery. It aims to avoid unnecessary chemotherapy in those who can safely skip it.
BrusselsAges 35–45 - NCT07732491RecruitingPhase 2
Culmerciclib for HR+ HER2+ advanced breast cancer
This study tests a new drug called Culmerciclib for women with a certain type of advanced breast cancer that has both hormone receptors and HER2. It’s for patients whose cancer has been stable on at least 4 cycles of prior therapy.
Guangzhou, GuangdongAges 18 years+ - NCT07205822RecruitingPhase 3
Dato-DXd for advanced HR-positive, HER2-negative breast cancer
This trial tests a new drug called Dato-DXd for people with a specific type of breast cancer that is hormone receptor-positive and HER2-negative (IHC 0). It's for those whose cancer has stopped responding to hormone therapy and who haven't had chemotherapy for cancer that has spread.
Largo, FloridaAges 18 years+ - NCT04348747RecruitingPhase 2
Vaccine plus pembrolizumab for breast cancer in the brain
This trial studies whether a personalized immune-cell vaccine (dendritic cell vaccine) combined with pembrolizumab can help control brain metastases from certain types of breast cancer. It may help your immune system better recognize and attack cancer cells in the brain.
Tampa, FloridaAges 18 years+ - NCT04360941RecruitingPhase 1
Test drug combo for metastatic breast cancer with AR-positive type
This Phase 1 trial tests palbociclib (a pill) plus avelumab (an IV antibody) for people with metastatic or hard-to-remove locally advanced breast cancer that is AR-positive but otherwise triple-negative. The goal is to see if the treatment is safe and potentially effective for this specific cancer subtype.
Manchester, Greater ManchesterAges 18 years+ - NCT07541079RecruitingPhase 3
Testing a New Breast Cancer Drug for Women Who Can't Tolerate Current Therapy
This study tests giredestrant, a new hormone-blocking medication, in postmenopausal women with early-stage ER+ breast cancer who have experienced intolerable side effects from their current aromatase inhibitor therapy. The trial will measure how well you tolerate this new drug and how it affects your quality of life.
Fountain Valley, CaliforniaAges 18 years+ - NCT07085767RecruitingPhase 3
Palazestrant and ribociclib for first-line advanced breast cancer
This trial tests a new drug (palazestrant) combined with ribociclib for people with a common type of advanced breast cancer that is estrogen receptor-positive and HER2-negative. You may qualify if you haven't had treatment for advanced disease and your cancer has either just been found or came back long after completing hormone therapy.
Hot Springs, ArkansasAges 18 years+ - NCT07661927RecruitingPhase 2
Skipping hormone therapy for low-risk breast cancer
This trial tests whether women with very low-risk, early-stage breast cancer can safely skip hormone therapy after surgery. It is designed for women who are 60 or older and whose cancer shows no spread to lymph nodes and has favorable biology.
AngersAges 60 years+ - NCT05350722Recruiting
Single pre-surgery radiation for low-risk breast cancer
This trial tests a single, shorter course of radiation given before breast surgery for people with low-risk, hormone-receptor–positive breast cancer. It may help treat the breast tumor while reducing the number and length of radiation treatments.
SydneyAges 40 years+ - NCT05996107RecruitingPhase 1
Ribociclib with radiation for high-risk HR+ breast cancer
This trial tests whether adding the targeted therapy ribociclib (Kisqali) to radiation after surgery reduces the risk of breast cancer returning in patients with high-risk, hormone-positive breast cancer.
Ann Arbor, MichiganAges 18 years+ - NCT03150576RecruitingPhase 2/Phase 3
Before-surgery treatment for triple-negative or BRCA breast cancer
This trial tests an “at-the-source” medicine given before surgery to shrink triple-negative and/or BRCA-related breast cancer. It may help doctors see whether it improves tumor response and reduces cancer spread at surgery time.
Cambridge, CambridgeshireAges 16–70 - NCT03452774Recruiting
AI matches your cancer tests to possible treatment trials
This trial uses an AI system to help match people with certain cancer types and specific tumor test results (like gene or protein markers) to relevant clinical trials. It may help you and your doctor find studies that fit your cancer biology faster.
Birmingham, AlabamaAges Any age - NCT03536897Recruiting
Radiation registry after lumpectomy for certain early breast cancers
This study collects information about people with early-stage, hormone-receptor–positive breast cancer who have a lumpectomy and radiation. It may help doctors understand outcomes after this standard treatment and improve care for future patients.
Columbus, OhioAges 65 years+ - NCT03591276RecruitingPhase 1/Phase 2
Doxorubicin plus pembrolizumab for hormone-resistant breast cancer
This Phase 1b/2 trial tests a combination of pegylated liposomal doxorubicin and pembrolizumab for breast cancer that no longer responds to hormone treatment. It aims to see how well the combination works and how safely it can be given to patients with advanced disease.
JerusalemAges 18 years+ - NCT03606967RecruitingPhase 2
Individualized vaccine added to standard treatment for metastatic triple-negative breast cancer
This Phase 2 trial tests whether adding a personalized cancer vaccine to durvalumab (an immunotherapy), tremelimumab (another immunotherapy), and chemotherapy can improve outcomes for people with metastatic triple-negative breast cancer. It may help your immune system recognize your specific tumor features.
Orange, CaliforniaAges 18 years+ - NCT03694756Recruiting
Testing special MRI to see tiny breast cancer structures
This study is testing whether a special MRI scan can help show tiny features inside breast tumors (TMEM). It’s mainly a “feasibility” study, meaning the team is checking if the scan can be done safely and clearly in different types of operable breast cancer.
The Bronx, New YorkAges 18 years+ - NCT03740893RecruitingPhase 2
Test drug to block DNA damage in triple-negative breast cancer
This Phase 2 trial studies a treatment given around the time of breast surgery to help shrink or control residual (remaining) triple-negative breast cancer. It also checks biomarkers (lab signals) to understand who benefits, with some people receiving anti–PD-L1 immunotherapy and some not.
Bournemouth, DorsetAges 18 years+ - NCT03936478RecruitingPhase 2
MRI-guided partial breast radiation in three short treatments
This study tests a faster, targeted type of radiation for early breast cancer, using real-time MRI to help plan and guide treatment. It may help deliver the same cancer-fighting effect while limiting radiation to the rest of the breast.
Madison, WisconsinAges 40 years+ - NCT03971045RecruitingPhase 2
Pembrolizumab plus low-dose oral chemo for chest wall breast cancer
This Phase 2 trial tests pembrolizumab (an immune therapy) plus low-dose oral cyclophosphamide in people with chest wall breast cancer that has spread locally and may have distant metastases. It aims to see if this combination can shrink tumors and control cancer longer, especially in tumors with certain immune markers.
MilanAges 18 years+ - NCT07702708Recruiting
AI predicts chemotherapy response in HR+/HER2- breast cancer
This trial uses AI to analyze your pre-treatment MRI and predict how well your tumor will respond to chemotherapy before surgery. It is for people with HR+/HER2- breast cancer who need chemo before their operation.
Fuzhou, FujianAges 18 years+
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Common questions
- Are there clinical trials for er+ breast cancer?
- Yes. Clin2 currently lists 558 recruiting er+ breast cancer studies from the U.S. registry, each rewritten for real people, not researchers, so you can see what it’s testing and who it’s for.
- How do I know if I qualify for a er+ breast cancer trial?
- Each study lists its eligibility criteria — rules about age, diagnosis, and prior treatments. On every Clin2 trial page we explain these in words written for real people and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Does it cost anything to join a er+ breast cancer trial?
- Using Clin2 is always free. Many trials cover the cost of the study treatment and related visits; some reimburse travel. The study team explains exactly what’s covered before you decide.
Related conditions
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. Talk with your doctor about whether a specific trial is right for you.