Clinical trials
ER Positive Breast Cancer clinical trials
Below are recruiting er positive breast cancer clinical trials, each written for real people, not researchers. We’re tracking 437 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07705438Recruiting
PET scan to predict if immunotherapy works in TNBC
This trial tests a new type of PET scan (Granzyme B-PET) to see if it can predict how well immunotherapy will work for people with triple-negative breast cancer that has spread. If it works, doctors might be able to tell sooner whether treatment is helping.
ShanghaiAges 18 years+ - NCT06533384RecruitingPhase 3
PARP inhibitor or chemo plus immunotherapy after surgery for high-risk TNBC
This trial tests whether adding a PARP inhibitor or capecitabine (chemo) to a PD-1 inhibitor (immunotherapy) after surgery helps prevent triple-negative breast cancer from coming back. It's for people with high-risk disease who have completed initial treatment.
Guangzhou, GuangdongAges 18–70 - NCT07638852RecruitingPhase 2
Combining radiation and targeted drugs for triple-negative breast cancer brain tumors
This trial is testing whether giving radiation therapy along with a combination of chemotherapy (cisplatin or carboplatin), an immunotherapy drug called adebrelimab, and a drug called bevacizumab can better treat triple-negative breast cancer that has spread to the brain. The goal is to see if this combination can shrink or control the brain tumors and improve outcomes.
Shanghai, Shanghai MunicipalityAges 18–70 - NCT05217966Recruiting
Radiation before possible breast surgery for early ER-positive cancer
This study gives radiation to the breast before surgery to see if some people can safely delay or even skip surgery. It targets women with a small, node-negative, ER-positive breast cancer with low genetic risk.
Montreal, QuebecAges 50 years+ - NCT06222957Recruiting
How HER2 affects brown fat in breast cancer patients
This study looks at how a protein called HER2 affects brown fat activity in women with breast cancer. Brown fat helps burn calories and may influence treatment outcomes. You will be assigned to one of two groups based on your cancer's HER2 status, and the study will measure how your brown fat responds to cold.
CopenhagenAges 18 years+ - NCT07586215Recruiting
HER2-PET imaging to predict response to T-DXd in advanced breast cancer
This study is testing whether a special PET scan (HER2-PET) can help predict how well the drug T-DXd (also known as Enhertu) might work for your breast cancer. T-DXd is a targeted therapy that delivers chemotherapy directly to cancer cells with certain markers. The trial will check if the scan can identify which patients are more likely to benefit, which could help personalize treatment.
ShanghaiAges 18 years+ - NCT06703567Recruiting
Helping patients understand gene test results for breast cancer
This study tests a tool to help people newly diagnosed with early-stage breast cancer better understand their gene test results. It is for patients who haven't yet decided about chemotherapy and want to learn more about their options.
MilanAges 18 years+ - NCT04819243RecruitingPhase 2
Test a BRCA-targeted drug plan for advanced ER-positive breast cancer
This Phase 2 study tests how well a treatment plan using palbociclib followed by talazoparib (and possibly atezolizumab) works in certain people with advanced ER-positive breast cancer. It may help by targeting cancer biology linked to BRCA/HRD changes and by strengthening how the cancer is controlled.
Seoul, Gannam-guAges 19 years+ - NCT07476170Recruiting
HR+/HER2- advanced breast cancer treatment patterns in China
This study looks at the real-world treatment patterns and outcomes for people with HR+/HER2- advanced breast cancer who started their first treatment in China between 2024 and 2027. It aims to understand what treatments are used and how well they work in everyday practice.
Bingjie, Beijing MunicipalityAges 18–99 - NCT06786026RecruitingPhase 2
Drug combo plus chemotherapy for first-line advanced triple-negative breast cancer
This trial tests whether adding an experimental immunotherapy drug (QL1706) with or without bevacizumab to standard chemotherapy can help people with advanced triple-negative breast cancer that hasn't been treated yet. It aims to improve outcomes for patients who have already had earlier treatment but whose cancer has come back or spread.
Shanghai, Shanghai MunicipalityAges 18–75 - NCT06813456Recruiting
Improving HER2 detection in breast cancer with new testing method
This trial studies a more precise way to measure HER2 levels in breast cancer tissue. It may help identify patients whose cancer is HER2-low or HER2-zero, so they can get more targeted treatment.
Bologna, BolognaAges 18 years+ - NCT07378306RecruitingPhase 2
Fasting-mimicking diet with chemo-immunotherapy for triple-negative breast cancer
This trial tests whether adding a special low-calorie diet (called a fasting-mimicking diet) to standard chemotherapy and immunotherapy can help treat triple-negative breast cancer before surgery. It aims to see if this combination makes the treatment work better.
Guangzhou, GuangdongAges 18–70 - NCT07351487RecruitingPhase 2
Chemo plus immunotherapy and anti-angiogenic drug for TNBC before surgery
This trial tests whether adding sintilimab (an immunotherapy) and bevacizumab (a drug that blocks blood supply to tumors) to standard chemotherapy before surgery can improve outcomes for women with stage II or III triple-negative breast cancer. It may help your immune system fight the cancer more effectively.
HefeiAges 18–75 - NCT07283692RecruitingPhase 2
New drug combo for triple-negative breast cancer before surgery
This trial tests a new drug, serplulimab, combined with standard chemotherapy (paclitaxel and carboplatin) given before surgery for triple-negative breast cancer. The goal is to see if this combination can shrink tumors more effectively.
ShanghaiAges 18–70 - NCT07278726Recruiting
Targeted removal of only suspicious lymph nodes for early breast cancer
This trial is testing a targeted surgical approach to remove only the suspicious lymph nodes under the arm for people with early-stage, hormone receptor positive, HER2 negative breast cancer. The goal is to see if this less extensive surgery is safe and effective when there is limited lymph node involvement.
Bologna, ItalyAges 18–90 - NCT07243002Recruiting
Patient outcomes with ribociclib or abemaciclib for early breast cancer
This study looks at how women and men with stage II or III HR+ HER2- breast cancer do when they start treatment with ribociclib or abemaciclib (combined with hormone therapy) after surgery. Researchers want to understand real-world experiences and results.
LondonAges 18 years+ - NCT07180693Recruiting
Breast cancer that returns after CDK4/6 inhibitor treatment
This study looks at patients whose breast cancer returns after starting a CDK4/6 inhibitor (like abemaciclib or ribociclib) along with hormone therapy. The goal is to understand why the cancer comes back and find better ways to treat it.
Bergamo, ItalyAges 18 years+ - NCT06643585RecruitingPhase 3
Comparing T-DXd to standard therapy for molecular relapse in early breast cancer
This trial compares a new drug called Trastuzumab-Deruxtecan (T-DXd) to standard treatment for people with early breast cancer whose cancer has come back at a molecular level (detected by a blood test) but hasn't spread to other parts of the body. The goal is to see if T-DXd can prevent the cancer from returning.
UlmAges 18–75 - NCT06963905RecruitingPhase 1/Phase 2
Testing a combination drug for triple-negative breast cancer
This trial is testing a combination of three drugs—sacituzumab govitecan, nivolumab, and relatlimab—for people with metastatic triple-negative breast cancer that has progressed after at least one prior therapy. You may qualify if you have this specific type of breast cancer and have received certain prior treatments.
New Haven, ConnecticutAges 18 years+ - NCT06134375RecruitingPhase 1/Phase 2
TM plus capecitabine for triple-negative breast cancer
This trial tests a drug called tetrathiomolybdate (TM) combined with capecitabine for people with triple-negative breast cancer who still have cancer cells after standard chemotherapy and surgery. The goal is to see if this combination can help prevent the cancer from coming back.
Indianapolis, IndianaAges 18–80 - NCT06078384RecruitingPhase 2
Pembrolizumab and chemo for early-stage triple-negative breast cancer
This trial studies whether adding pembrolizumab (an immunotherapy) to standard chemotherapy after surgery can improve outcomes for people with early-stage triple-negative breast cancer. The treatment you receive depends on the level of immune cells (TILs) found in your tumor.
AmiensAges 18 years+ - NCT05749588RecruitingPhase 2
Study for advanced triple-negative breast cancer after prior treatments
This Phase 2 trial tests a treatment for people with triple-negative breast cancer that has come back or spread and has continued to progress despite earlier therapies. It may help by trying a new approach in patients who still have enough health to safely receive more treatment.
ShanghaiAges 18 years+ - NCT05525767RecruitingPhase 4
Bevacizumab plus chemo before surgery for HER2-negative breast cancer
This trial studies whether adding bevacizumab (an anti-blood-vessel medicine) to chemotherapy before surgery improves treatment outcomes for people with HER2-negative breast cancer. It’s mainly for tumors that are stage II to IIIC and have not had prior cancer treatment.
Shijiazhuang, HebeiAges 18 years+ - NCT05464082RecruitingPhase 2
Collect tumor samples to guide early breast cancer recurrence care
This Phase 2 study tests a “precision” approach using tumor sample testing to help predict, prevent, and treat early metastatic recurrence in triple-negative or hormone-receptor–low, HER2-negative breast cancer. If you qualify, you’ll be asked to provide tumor tissue before (or in place of) standard chemotherapy, so researchers can learn which tumor features matter most.
Salt Lake City, UtahAges 18 years+
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Common questions
- Are there clinical trials for er positive breast cancer?
- Yes. Clin2 currently lists 437 recruiting er positive 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 positive 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 positive 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
- Breast Cancer Early Stage Breast Cancer (Stage 1-3)
- Breast Cancer (Triple Negative Breast Cancer (TNBC))
- HER2-positive Breast Cancer
- Hormone-receptor-positive Breast Cancer
- Estrogen-receptor-positive Breast Cancer
- HER2-positive Metastatic Breast Cancer
- Hormone Receptor Positive HER-2 Negative Breast Cancer
- Node-positive Breast Cancer
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.