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
- NCT07405801RecruitingPhase 2
Inavolisib plus ribociclib plus fulvestrant for advanced breast cancer
This trial tests a combination of three drugs (inavolisib, ribociclib, and fulvestrant) compared to a placebo plus two of the drugs (ribociclib and fulvestrant) for people with advanced hormone receptor-positive breast cancer who have not had prior treatment for advanced disease. The goal is to see if adding inavolisib improves outcomes.
Anaheim, CaliforniaAges 18 years+ - NCT07401537RecruitingPhase 2
Comparing two schedules of immunotherapy for advanced triple-negative breast cancer
This trial tests whether giving immunotherapy less often (extended dose intervals) works as well as the standard schedule for people with advanced triple-negative breast cancer who have already completed 6 cycles of first-line treatment. It aims to see if a longer break between doses can be just as effective with fewer hospital visits.
Guangzhou, GuangdongAges 18–70 - NCT06826885Recruiting
Comparing two types of radiation for breast cancer
This trial is testing how well two different radiation techniques, IMPT and IMRT, work for treating breast cancer. It aims to see which one is safer and more effective, so you might benefit from a potentially better treatment approach.
Shanghai, Shanghai MunicipalityAges 18 years+ - NCT06642545RecruitingPhase 2
New targeted drug combo for HER2-low breast cancer
This trial tests a new combination of targeted drugs (Disitamab Vedotin and RC148) against a standard chemotherapy (Abraxane) with or without an immunotherapy drug (Toripalimab) for advanced breast cancer that is HER2-low and hormone receptor-negative. The goal is to see if the new combination works better at shrinking tumors and slowing cancer growth.
Beijing, Beijing MunicipalityAges 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+ - NCT06259929RecruitingPhase 2
Neoadjuvant abemaciclib and giredestrant for early breast cancer
This trial tests a combination of two oral medications (abemaciclib and giredestrant) given before surgery to women with a common type of early breast cancer (hormone receptor-positive, HER2-negative). The goal is to see if this treatment can shrink the tumor before surgery.
Catania, CataniaAges 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+ - 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 - NCT07368998RecruitingPhase 2
Study of inavolisib plus fulvestrant for advanced breast cancer
This trial tests whether a new targeted pill (inavolisib) plus hormone therapy (fulvestrant) can slow or stop breast cancer growth in people whose cancer has a specific genetic change called a PIK3CA mutation. It is for patients whose disease worsened after previous hormone-and-CDK-inhibitor treatment.
Los Angeles, CaliforniaAges 18 years+ - NCT05020860RecruitingPhase 2
Study how early breast cancer responds on imaging and under a microscope
This Phase 2 study looks at how well early breast cancer shrinks with treatment and how that matches with what doctors find after surgery under the microscope. The goal is to learn better ways to predict and assess treatment success.
Houston, TexasAges 18 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+ - NCT06611891RecruitingPhase 3
PET scan study for breast cancer with hormone receptors
This study tests a special PET scan called 68Ga-DOTATOC to see if it can find certain breast cancer cells in the body. It may help doctors better understand your cancer, especially if it has spread to the liver or bones.
GrenobleAges 18–99 - NCT07310420RecruitingPhase 1
Evaluating ovarian suppression with ZOLADEX in premenopausal breast cancer
This trial tests a medication (ZOLADEX) to suppress ovarian function in premenopausal women with hormone receptor-positive breast cancer, either early-stage or advanced. The goal is to see how well it works and how safe it is.
Hot Springs, ArkansasAges 18–55 - 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+ - NCT05465031RecruitingPhase 4
Testing heart-protection medicine during breast cancer treatment
This trial tests sacubitril/valsartan to help prevent heart weakness (cardiotoxicity) caused by breast cancer treatments like anthracyclines and/or anti-HER2 drugs. If you qualify, you may be offered this heart-protection medicine while your cancer is treated.
Opole, Opole VoivodeshipAges 18 years+ - 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+ - NCT06891651Recruiting
21-gene testing for older breast cancer patients with lymph node spread
This trial looks at using a 21-gene test to guide treatment decisions for women aged 65 or older who have breast cancer that has spread to lymph nodes. It aims to see if this test can help avoid unnecessary chemotherapy in this group.
Jinan, ShandongAges 65 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+ - NCT07242352RecruitingPhase 3
Comparing elacestrant to standard hormone therapy for high-risk early breast cancer
This trial tests a new hormone therapy drug called elacestrant against standard hormone treatments for people with a specific type of early breast cancer (ER+/HER2-) that has a high chance of coming back. The goal is to see if elacestrant works better at keeping the cancer from returning.
Mannheim, Baden-WurttembergAges 18 years+ - NCT07235176RecruitingPhase 1/Phase 2
QLS1304 plus hormone therapy for ER+ breast cancer
This trial tests a new drug called QLS1304 combined with hormone therapy for people with ER-positive, HER2-negative breast cancer that has spread or come back and no longer responds to hormone therapy alone. The goal is to see if this combination can help shrink tumors or slow the disease.
ShanghaiAges 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+ - NCT07227831Recruiting
TheraBionic device for advanced hormone-positive breast cancer
This trial tests a device called TheraBionic P1, which uses low-level radiofrequency energy to treat advanced breast cancer that has stopped responding to standard treatments. It may offer a new option for people who have exhausted other therapies.
Bay City, MichiganAges 22 years+
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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.