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 554 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06222879RecruitingPhase 1/Phase 2
New drug combinations for advanced breast cancer
This trial tests a combination of new drugs (HRS-8080, SHR-A2009, or others) for people with advanced breast cancer that has stopped responding to previous treatments. The goal is to see if these combinations can shrink tumors or slow the cancer's growth.
Changsha, HunanAges 18–75 - NCT07616453RecruitingPhase 2
New Drug Plus Hormone Therapy for Hormone-Responsive Breast Cancer
This trial tests whether a new drug called culmerciclib, combined with hormone therapy, works better than hormone therapy alone for early-stage breast cancer that grows quickly and responds to estrogen. The goal is to shrink tumors before surgery and improve outcomes.
Hangzhou, ZhejiangAges 18–75 - NCT06401005RecruitingPhase 2
Radiation, chemo, and immunotherapy before surgery for triple-negative breast cancer
This trial tests a combination of stereotactic body radiation therapy (SBRT), chemotherapy, and an immunotherapy drug called AK104 given before surgery to treat triple-negative breast cancer. It aims to see if this approach can shrink tumors more effectively and help patients avoid a mastectomy.
Wuhan, HubeiAges 18 years+ - NCT07612215RecruitingPhase 1/Phase 2
Elacestrant for Advanced Triple-Positive Breast Cancer
This trial tests a new drug called elacestrant for advanced breast cancer that is triple-positive (positive for three hormone receptors: ER, PR, and HER2). The drug may help slow or shrink cancer that has progressed despite previous treatments.
New York, New YorkAges 18 years+ - NCT04985266RecruitingPhase 2
Watch blood DNA for early breast cancer return, then add palbociclib
This study checks for early signs that ER-positive, HER2-negative breast cancer may be coming back by testing your blood for cancer DNA. If signs are found, it tests whether adding palbociclib plus fulvestrant works better than standard hormone therapy alone to prevent recurrence.
AngersAges 18 years+ - NCT07579286Recruiting
Skipping lymph node surgery in early breast cancer
This trial tests whether older women with early-stage, slow-growing breast cancer can safely skip removal of underarm lymph nodes during surgery. The goal is to reduce surgery-related side effects while maintaining safety.
Saint Petersburg, Russian FederationAges 60 years+ - NCT07570524Recruiting
Predicting Treatment Response in Early Triple-Negative Breast Cancer
This study helps doctors predict which patients will respond best to immunochemotherapy (a combination of immune-boosting and chemotherapy drugs) for early-stage triple-negative breast cancer. By understanding your tumor better before treatment, doctors may be able to personalize your care plan.
RennesAges 18 years+ - NCT07563595Recruiting
Elacestrant for advanced ER+ HER2- breast cancer with ESR1 mutation
This trial tests elacestrant, a new hormone therapy drug, in women whose advanced or spread breast cancer has stopped responding to first-line hormone treatment. The drug is designed to work against a specific genetic change (ESR1 mutation) that can develop in these cancers.
Freiburg im BreisgauAges 18 years+ - NCT07544056RecruitingPhase 2/Phase 3
BEBT-209 Plus Chemotherapy for Triple-Negative Breast Cancer
This study tests a new drug called BEBT-209 combined with chemotherapy (carboplatin and gemcitabine) in women with advanced triple-negative breast cancer that has spread or cannot be surgically removed. The goal is to see if this combination can slow or stop cancer growth better than standard treatments.
Guangzhou, GuangdongAges 18–75 - NCT07543536RecruitingPhase 3
Megestrol Acetate for Fatigue in HER2+ Breast Cancer
This study tests whether a medication called megestrol acetate can help reduce severe tiredness and fatigue in people with advanced breast cancer who are receiving a targeted therapy called T-DXd (trastuzumab deruxtecan). Fatigue is a common side effect that can really impact quality of life.
Guangzhou, GuangdongAges 18–75 - 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+ - NCT07527689Recruiting
Faster vs. Standard Radiation After Breast Cancer Surgery
This study compares two radiation schedules for breast cancer patients at high risk of cancer returning in lymph nodes. Both use modern radiation therapy, but one delivers treatment faster (ultra-hypofractionated) while the other uses a more moderate schedule. The goal is to see which approach works better with fewer side effects.
ShanghaiAges 18 years+ - NCT07503717Recruiting
Brain scan surveillance in HER2-positive metastatic breast cancer
This study tests whether regular brain scans (surveillance) help spot brain metastases early in people with HER2-positive breast cancer that has spread to other parts of the body. Participation involves being randomly assigned to either routine brain scans or no extra scans to see which approach is better.
BeaumontAges 18 years+ - NCT07492394RecruitingPhase 2
Testing dalpiciclib with or without entinostat and letrozole for early breast cancer
This trial is testing a combination of three drugs (dalpiciclib, entinostat, and letrozole) for women with early-stage, hormone-receptor-positive, HER2-negative breast cancer. It aims to see if adding these medications before surgery can help shrink the tumor.
Shijiazhuang, HebeiAges 18–75 - NCT07482384Recruiting
Support program for young women with early-stage breast cancer
This study tests a mobile health program that provides support and information to young women with early-stage breast cancer who are on hormone therapy. The goal is to help you stay on your treatment and manage side effects.
Boston, MassachusettsAges 18–49 - NCT07483307RecruitingPhase 2
Hormone therapy before surgery for lobular breast cancer
This trial tests whether taking hormone therapy before surgery can improve outcomes for women with a specific type of breast cancer called lobular breast cancer. If you qualify, you would receive endocrine therapy for 6 months before your planned breast-conserving surgery.
Basking Ridge, New JerseyAges 50 years+ - NCT06776458Recruiting
Aromatase inhibitor effects on heart and brain health in breast cancer
This study looks at how aromatase inhibitors (a type of hormone therapy for breast cancer) affect your heart and brain health over time. It compares women with breast cancer who have taken these drugs to healthy women of similar age.
Toronto, OntarioAges Any age - NCT07474090Recruiting
Personalized Exercise Program for Breast Cancer Survivors
This study tests whether a personalized exercise program during chemotherapy helps breast cancer survivors recover better and feel stronger. You'll use a smartphone app to do guided workouts at home while getting support from exercise coaches.
Winston-Salem, North CarolinaAges 18–85 - NCT05475678RecruitingPhase 2
Camrelizumab plus chemo before surgery for triple-negative breast cancer
This Phase 2 trial tests adding camrelizumab (an immune therapy) to standard chemotherapy before surgery for people with triple-negative breast cancer that has not spread. It aims to improve how much the tumor shrinks before and around the time of surgery.
Zhengzhou, HenanAges 18–70 - NCT07460752RecruitingPhase 2
Alternative injection site for goserelin in breast cancer patients
This trial is testing whether giving the drug goserelin in a different spot on the body works just as well for suppressing ovarian function in premenopausal women with hormone receptor positive breast cancer. You may be a fit if you've already been on goserelin shots in your abdomen for at least 6 months.
Rochester, MinnesotaAges 18–50 - NCT06805812Recruiting
Predicting outcomes of CDK4/6 inhibitors plus hormone therapy for advanced breast cancer
This study looks at how well a type of targeted therapy (called CDK4/6 inhibitors) combined with hormone therapy works as the first treatment for advanced breast cancer that is hormone receptor-positive and HER2-negative. Researchers want to find patterns that could help predict which patients benefit most.
AvianoAges 18 years+ - NCT07439458Recruiting
Exercise effects on tumor cells in breast cancer survivors
This trial tests whether different types and intensities of exercise can change tumor-related cells in survivors of triple-negative breast cancer. It may help understand how exercise could improve long-term outcomes.
Riga, Dzirciema Street 16Ages 35 years+ - NCT07443774Recruiting
Sticking with hormone and CDK4/6 therapy after breast cancer surgery
This study is looking at how well people stick to a treatment plan that combines hormone therapy with a pill called a CDK4/6 inhibitor after surgery for early-stage breast cancer. The goal is to learn more about adherence so doctors can help patients stay on track.
GrenobleAges 18 years+ - NCT07432178RecruitingPhase 3
Targeted pill to skip chemo for high-risk breast cancer
This trial tests whether adding a targeted pill (dalpiciclib) to standard hormone therapy can safely replace chemotherapy for women with small, hormone-positive, high-risk breast cancers.
ShanghaiAges 18–70
Hear when a new ER+ Breast Cancer trial opens
We’ll email you when one opens — at most once a week, no account needed, unsubscribe anytime.
Common questions
- Are there clinical trials for er+ breast cancer?
- Yes. Clin2 currently lists 554 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.