Clinical trials
HR+ Breast Cancer clinical trials
Below are recruiting hr+ breast cancer clinical trials, each written for real people, not researchers. We’re tracking 329 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT04069884Recruiting
Avoid extra lymph-node radiation for certain node-positive breast cancers
This trial tests a way to decide whether you can safely receive less radiation to lymph nodes after surgery for breast cancer that has spread to nearby nodes. If you qualify as “low risk,” the goal is to reduce radiation exposure while keeping cancer control safe.
Guangzhou, GuangdongAges 18–70 - NCT04263298RecruitingPhase 3
Fulvestrant or capecitabine after chemo for metastatic breast cancer
This Phase 3 trial compares two medicines—fulvestrant versus capecitabine—as “maintenance” treatment after your first chemo helps control metastatic breast cancer. It aims to see which one helps people live longer with better disease control.
Guangzhou, GuangdongAges 18–75 - NCT04526587Recruiting
Study of breast cancer markers after CDK4/6 inhibitor treatment
This study looks at lab markers and clinical features in people with certain types of breast cancer who are being treated with, or have already been treated with a CDK4/6 inhibitor like abemaciclib (ciclib-based therapy). It aims to understand patterns that may help doctors better characterize breast cancer after these treatments.
Buffalo, New YorkAges 18 years+ - NCT04529044RecruitingPhase 2
177Lu-DOTATATE for advanced breast cancer with targeted receptors
This Phase 2 trial tests whether 177Lu-DOTATATE can slow or shrink stage IV or recurrent breast cancer. It targets tumor “receptors” found on scans, using a radioactive medicine that delivers radiation directly to cancer cells.
Portland, OregonAges 18–100 - NCT04553770RecruitingPhase 2
Trastuzumab deruxtecan with or without anastrozole for early breast cancer
This Phase 2 study tests whether trastuzumab deruxtecan alone or combined with anastrozole can control early-stage breast cancer that is HER2-low and hormone-receptor positive. It aims to improve outcomes after initial surgical treatment by targeting cancer cells that may have low levels of HER2.
Fullerton, CaliforniaAges 18 years+ - NCT04563507RecruitingPhase 2
Immunotherapy plus hormone therapy for metastatic ER-positive breast cancer
This Phase 2 study tests a combination of immune-based treatments along with hormone (endocrine) therapy to slow or shrink advanced, hormone-receptor positive, HER2-negative breast cancer. You may be a candidate if your cancer has progressed after standard hormone-blocking medicines and you can start treatment with CDK4/6 medicine plus an aromatase inhibitor.
New York, New YorkAges 18–90 - NCT04646759RecruitingPhase 3
Fulvestrant or capecitabine plus pyrotinib for metastatic breast cancer
This Phase 3 trial tests adding pyrotinib to standard hormone-based treatments (fulvestrant or capecitabine) to slow or control metastatic breast cancer. It’s for tumors that are hormone-receptor positive and HER2 positive, where standard options have been used before.
Guangzhou, GuangdongAges 18–80 - NCT04923542RecruitingPhase 1/Phase 2
Targeted drug plus focused brain radiation for breast cancer
This study tests whether abemaciclib (a targeted pill) given with focused radiation to brain tumors can control hormone receptor–positive, HER2-negative breast cancer in the brain. It’s designed to see if the combination helps shrink or slow the growth of brain metastases while keeping side effects manageable.
Tampa, FloridaAges 18 years+ - NCT07137416RecruitingPhase 1
Testing a new combination of cancer drugs for HER2-positive tumors and breast cancer
This trial tests the safety of combining two drugs, CX-5461 (Pidnarulex) and Trastuzumab Deruxtecan (T-DXd), in people with HER2-positive solid tumors or certain types of breast cancer. If you have advanced cancer that hasn't responded to other treatments, this study may be an option.
Boston, MassachusettsAges 18 years+ - NCT07117630RecruitingPhase 2
A new drug combo for advanced breast cancer after standard treatment
This trial tests a new drug combination for women with a certain type of advanced breast cancer (HR-positive, HER2-negative) that has worsened after standard treatments like CDK4/6 inhibitors and hormone therapy. It aims to see if the combination can help when other options have stopped working.
ShanghaiAges 18 years+ - NCT06970912RecruitingPhase 2
ctDNA-Guided Reduced Chemo in HR+/HER2- Breast Cancer
This study is testing whether using a ctDNA blood test can help doctors decide if patients with hormone receptor-positive, HER2-negative breast cancer can safely receive less intensive chemotherapy after surgery. The goal is to reduce side effects while still preventing the cancer from coming back.
Beijing, Beijing MunicipalityAges 18–75 - NCT06726148RecruitingPhase 1/Phase 2
Study of ECI830 for advanced breast cancer and solid tumors
This trial is testing a new drug called ECI830, either alone or with another drug, for people with advanced breast cancer or other solid tumors that have not responded to standard treatments. It may be an option if you have HR+/HER2- breast cancer, small cell lung cancer, or a tumor with a specific gene change (CCNE1 amplification).
Los Angeles, CaliforniaAges 18–100 - NCT07366112RecruitingPhase 2
CDK4/6 inhibitor plus hormone therapy before breast cancer surgery
This trial tests a combination of a CDK4/6 inhibitor (a type of targeted therapy) with hormone therapy given before surgery for early-stage breast cancer that is hormone receptor-positive and HER2-negative. It aims to see if this approach can shrink tumors and improve outcomes.
Beijing, Beijing MunicipalityAges 18–75 - NCT04965766RecruitingPhase 2
Study drug for HER2-negative, advanced breast cancer after prior treatment
This Phase 2 trial tests patritumab deruxtecan (U3-1402) in people with HER2-negative, hormone-receptor positive (HR+) breast cancer that cannot be removed by surgery or has spread. It’s for cancers that have progressed despite endocrine therapy plus a CDK4/6 inhibitor, aiming to shrink tumors and control the disease.
DijonAges 18 years+ - NCT05063136RecruitingPhase 3
Metronomic capecitabine with hormone therapy after breast cancer
This trial studies whether a low-dose “metronomic” chemotherapy medicine (capecitabine) added to standard hormone therapy can reduce breast cancer coming back. It is for people with hormone-receptor–positive, HER2-negative breast cancer after surgery and chemo.
Zhengzhou, HenanAges 18–70 - NCT05115474RecruitingPhase 2
Screening brain MRI study for stage IV breast cancer
This trial checks whether taking screening brain MRI scans in people with stage IV breast cancer helps find brain involvement earlier. It may help guide treatment decisions for those who would otherwise only get brain imaging after symptoms start.
Clearwater, FloridaAges 18 years+ - NCT05159193RecruitingPhase 3
Pre-surgery chemotherapy and antibodies for HER2 breast cancer
This phase 3 trial compares two pre-surgery treatment plans for people with HER2-positive invasive breast cancer that has spread to nearby lymph nodes. It aims to see which plan works better to shrink the tumor before surgery and improve outcomes.
Guandong, GuangdongAges 18–70 - NCT05205200RecruitingPhase 2
Immune therapy for HR-positive, HER2-negative metastatic breast cancer
This Phase 2 trial studies an immune-based treatment for women with HR-positive and HER2-negative breast cancer that has spread or returned and can’t be cured with local treatment alone. The goal is to see whether the therapy can shrink tumors and improve disease control with acceptable safety.
ShanghaiAges 18–75 - NCT05212454RecruitingPhase 3
Capecitabine added after surgery for high-risk ER-positive breast cancer
This Phase 3 study tests whether adding capecitabine (a chemotherapy pill) after breast cancer surgery can lower the chance the cancer comes back. It targets people with hormone-receptor–positive and HER2-negative breast cancer who are considered “high risk.”
Hanzhou, ZhejiangAges 18–70 - NCT05216432RecruitingPhase 1
RLY-2608 for PIK3CA-mutant advanced solid tumors and breast cancer
This early study (Phase 1) tests RLY-2608, a targeted cancer drug for tumors with a PIK3CA mutation. It studies the drug alone and combined with hormone therapy (and sometimes CDK4/6 or CDK4 medicines) to see safety, dose, and whether it can shrink tumors.
Tucson, ArizonaAges 18 years+ - NCT05263570Recruiting
Real-world treatment planning for stage II–III HR+ HER2+ breast cancer
This trial looks at how well a standard “neoadjuvant” treatment plan works in real-world patients. It is for people newly diagnosed with stage II–III HR+ breast cancer and aims to see whether treatment gives expected outcomes in everyday care.
Shenyang, LiaoningAges 18 years+ - NCT05297617RecruitingPhase 2
Shorter hormone therapy for low-risk postmenopausal breast cancer
This Phase 2 trial studies whether women with very low-risk, hormone-receptor positive breast cancer can safely take hormone therapy for a shorter time. It may help reduce side effects if shorter treatment works as well as the longer standard plan.
LimogesAges 51 years+ - NCT05362760RecruitingPhase 4
Abemaciclib plus hormone therapy, with digital side-effect tracking
This trial tests whether adding abemaciclib to standard hormone (endocrine) therapy can improve outcomes for certain types of advanced breast cancer. It also uses a phone app to help you and the team track side effects so problems can be caught early.
AalenAges 18 years+ - NCT05430399RecruitingPhase 3
Utidelone vs docetaxel for HER2-negative breast cancer
This trial compares utidelone with docetaxel in people with HER2-negative advanced or metastatic breast cancer. It aims to see which treatment works better and is safer for controlling the cancer and helping patients live longer.
Guangzhou, GangdongAges 18 years+
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Common questions
- Are there clinical trials for hr+ breast cancer?
- Yes. Clin2 currently lists 329 recruiting hr+ 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 hr+ 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 hr+ 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.