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 561 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06967103RecruitingPhase 2
New drug before breast cancer surgery
This trial tests a new drug, QL1706, given alongside chemotherapy before surgery for a certain type of breast cancer. It aims to see if this combination helps shrink tumors before they are removed.
ZhengzhouAges 18 years+ - NCT06991946Recruiting
Genomic profiling for metastatic breast cancer in Spain
This study looks at how genetic testing of your tumor might affect the treatment plan for your metastatic breast cancer. It aims to help doctors choose the best therapy based on your tumor's profile.
Barcelona, BarcelonaAges 18 years+ - NCT07002177RecruitingPhase 1/Phase 2
Combination therapy study for ER+/HER2- breast cancer
This trial tests a new drug called FWD1802 combined with other treatments for people with a certain type of advanced breast cancer (ER-positive, HER2-negative). It aims to find better options if standard treatments have stopped working or aren't suitable.
ShanghaiAges 18–75 - NCT07014410RecruitingPhase 2
Pyrotinib, dalpiciclib, and letrozole for advanced breast cancer
This trial tests a combination of three targeted drugs for a type of advanced breast cancer that is both ER-positive and HER2-positive. The goal is to see if adding these two new drugs to standard hormone therapy can help shrink or control the cancer.
Hangzhou, ZhejiangAges 18–75 - NCT07054190RecruitingPhase 2
Testing Inavolisib in early-stage breast cancer with PIK3CA mutation
This trial is testing a drug called Inavolisib (a type of targeted therapy) given before surgery for people with early-stage, hormone receptor-positive, HER2-negative breast cancer that has a specific genetic change (PIK3CA mutation). The goal is to see if adding Inavolisib to standard endocrine therapy can shrink the tumor more effectively.
Los Angeles, CaliforniaAges 18 years+ - NCT07071038RecruitingPhase 2
Switching medication to relieve side effects from aromatase inhibitors
This trial tests whether switching to a different aromatase inhibitor or using standard treatments works better for managing side effects in breast cancer survivors. It aims to help you stay on hormone therapy longer with fewer discomforts.
Lebanon, New HampshireAges 18 years+ - NCT07142096Recruiting
MitoQ before surgery for triple-negative breast cancer
This trial tests whether taking the supplement MitoQ before standard surgery can help treat triple-negative breast cancer. You would take MitoQ for a short time between diagnosis and surgery to see if it slows tumor growth.
BrusselsAges 18 years+ - NCT07159451RecruitingPhase 2
Elacestrant for premenopausal women with early breast cancer
This trial tests a new hormone therapy pill, elacestrant, given alone or with another drug to suppress ovarian function before surgery. It's for premenopausal women with early-stage, hormone receptor-positive, HER2-negative breast cancer to see if it can shrink the tumor.
VillejuifAges 18 years+ - NCT07164976RecruitingPhase 1/Phase 2
Ribociclib for advanced HR+ HER2- breast cancer
This trial tests a new combination of ribociclib and anastrozole as a first treatment for advanced hormone receptor-positive, HER2-negative breast cancer that has not been treated before. It may help if you have not received any prior therapy for metastatic disease.
NagoyaAges 18 years+ - NCT07179744Recruiting
Skipping radiation for low-risk node-positive breast cancer
This trial tests whether some women with low-risk breast cancer that has spread to a few lymph nodes can safely skip radiation therapy after surgery. It aims to reduce side effects while keeping the cancer from coming back.
Guangzhou, GuangdongAges 18–70 - NCT07195227RecruitingPhase 2
Camizestrant plus ribociclib for advanced breast cancer
This trial tests a combination of two drugs, camizestrant and ribociclib, for people with a certain type of advanced breast cancer (HR+/HER2-). It is for those whose cancer has grown or spread despite previous hormone therapy. The goal is to see if this new combination can help control the cancer.
DessauAges 18 years+ - NCT07198724RecruitingPhase 1/Phase 2
A study of elacestrant plus Enhertu for advanced breast cancer
This trial tests a new combination of two targeted drugs (elacestrant and Enhertu) for people with a specific type of advanced breast cancer (HR-positive, HER2-low or ultra-low) that did not respond to standard treatments like CDK4/6 inhibitors. The goal is to see if this combination works better than current options.
Boston, MassachusettsAges 18 years+ - NCT07218432Recruiting
TheraBionic device study for hormone-positive breast cancer
This trial tests a device called TheraBionic P1, which uses low-level radiofrequency energy, for women with early-stage hormone receptor-positive, HER2-negative breast cancer. It is given before surgery to see if it can help shrink the tumor.
Clarkston, MichiganAges 22 years+ - NCT07220135RecruitingPhase 2
Comparing two drug combos before surgery for HER2+ breast cancer
This trial tests two different combinations of chemotherapy and targeted therapy given before surgery for HER2-positive breast cancer. The goal is to see which combination works better at shrinking the tumor.
Fairway, KansasAges 18 years+ - NCT07222215RecruitingPhase 2
Capacitabine with or without elacestrant for ER+ breast cancer
This trial tests if adding a new oral targeted therapy (elacestrant) to standard chemotherapy (capecitabine) works better than chemotherapy alone for people with a specific type of advanced breast cancer that is hormone-sensitive (ER-positive) and has stopped responding to hormone therapy.
Boston, MassachusettsAges 18 years+ - NCT07233928Recruiting
Breast cancer protein study in different subtypes
This trial takes a close look at the proteins inside breast cancer cells, using samples from people with different subtypes. It aims to better understand how each type behaves, which could help guide future treatments.
ToulouseAges 18 years+ - NCT06062498RecruitingPhase 2
Elacestrant alone or with a CDK4/6 inhibitor for advanced breast cancer
This trial compares a new hormone therapy (elacestrant) to the same therapy combined with a CDK4/6 inhibitor (palbociclib, abemaciclib, or ribociclib) for people with a specific type of advanced breast cancer (ER-positive, HER2-negative) that has a mutation in the ESR1 gene. It aims to see if the combination works better than the single drug.
Chicago, IllinoisAges 18 years+ - NCT07262138Recruiting
Active monitoring for older women with early breast cancer
This trial studies whether active monitoring (watchful waiting) can be a safe option instead of immediate surgery or other treatments for women 70 and older who have a small, slow-growing type of breast cancer. If you join, you will not have surgery or other treatments right away, but your cancer will be closely watched.
Pittsburgh, PennsylvaniaAges 70 years+ - NCT07311993RecruitingPhase 1
Study of CLR 125 for triple negative breast cancer
This trial tests an experimental drug called CLR 125 in people with triple negative breast cancer that has worsened after at least one prior treatment. It aims to see if the drug is safe and how it affects the cancer.
Jacksonville, FloridaAges 18 years+ - NCT07314073RecruitingPhase 2
A PET scan to find hidden spread in slow-growing breast cancer
This trial is testing a special PET scan (18F-FES PET/CT) to see if it can find distant cancer spread in women with a slow-growing, estrogen receptor-positive, stage III breast cancer. The goal is to find out whether this imaging test can detect hidden metastases better than standard scans.
SeoulAges 19 years+ - NCT07357298RecruitingPhase 3
Brain MRI surveillance for stage IV breast cancer
This trial tests whether regular brain MRI scans can help detect brain metastases early in patients with stage IV breast cancer who do not yet have any known brain metastases. The goal is to see if early detection improves outcomes.
Miami, FloridaAges 18 years+ - NCT07371208RecruitingPhase 2
Sac-TMT plus immunotherapy before surgery for triple-negative breast cancer
This study tests a combination of two drugs—Sacituzumab Tirumotecan (Sac-TMT) and an immunotherapy called KL-A167—given before surgery to shrink triple-negative breast tumors. It aims to improve outcomes for people with early-stage, high-risk breast cancer who have not yet had any treatment.
Shanghai, Shanghai MunicipalityAges 18–65 - NCT07371585RecruitingPhase 2
Trastuzumab Deruxtecan for first-line HER2-positive advanced breast cancer
This trial tests a targeted therapy called Trastuzumab Deruxtecan (T-DXd) for people with HER2-positive breast cancer that has spread or cannot be removed. It is for those who have not yet received any chemotherapy or HER2-targeted treatment for metastatic disease. The study also focuses on managing side effects early, using digital tools to track symptoms.
VillejuifAges 18 years+ - NCT07389408Recruiting
Early breast cancer treatment patterns study
This study observes how doctors treat early breast cancer and what outcomes patients have. It's for people with hormone receptor-positive, HER2-negative breast cancer that hasn't spread to many lymph nodes.
AthensAges 18 years+
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Common questions
- Are there clinical trials for er+ breast cancer?
- Yes. Clin2 currently lists 561 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.