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
- NCT05536128RecruitingPhase 2
Fulvestrant plus DNA damage drugs after CDK4/6 treatment failure
This Phase 2 trial studies whether combining fulvestrant with medicines that block DNA repair can help treat HR+/HER2- metastatic or inoperable breast cancer that has progressed after endocrine therapy plus a CDK4/6 inhibitor. It also aims to check the safety of this combination and see if it can control the cancer for longer.
SeoulAges 19 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+ - 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+ - NCT05146778Recruiting
Opioid-free anesthesia to reduce long-term post-mastectomy pain
This study tests whether a pain-control approach without opioids (strong pain medicines) can lower persistent pain after mastectomy. It may help people avoid long-term pain and opioid side effects.
SeoulAges 19–80 - NCT05293470Recruiting
Tracking the real-world effects of Piqray in Korea
This study monitors how well and how safely Piqray works for people in Korea in routine care. You may be invited if your breast cancer matches specific genetic and receptor test results and you are starting Piqray for the first time.
Cheonan Si, Chungcheongnam-doAges 18–100 - NCT06139107RecruitingPhase 1
Radiation and abemaciclib plus letrozole before breast cancer surgery
This trial combines a short course of radiation before surgery with two oral medications (abemaciclib and letrozole) to treat early-stage, hormone-sensitive breast cancer. The goal is to see if this approach can shrink the tumor and improve outcomes.
Belleville, New JerseyAges 60 years+ - NCT06377852RecruitingPhase 3
Dosing study for older adults with advanced breast cancer
This trial studies how well different doses of CDK4/6 inhibitors (palbociclib or ribociclib) work in people aged 65 or older with HR+/HER2- metastatic breast cancer. It aims to find the best starting dose to balance effectiveness and side effects.
Chandler, ArizonaAges 65 years+ - NCT06439771RecruitingPhase 2
Testing YL202 for advanced breast cancer
This trial tests a new drug called YL202 for people with advanced breast cancer. It is for those who have already tried certain targeted treatments (HER2 or TROP2 antibody-drug conjugates) and they stopped working. The goal is to see if YL202 can help shrink tumors or slow cancer growth.
Shanghai, Shanghai MunicipalityAges 18–75 - 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 - NCT06955156RecruitingPhase 2
Trilaciclib with immunotherapy and chemo for early TNBC
This trial tests a new drug combination for people with locally advanced triple-negative breast cancer who haven't had treatment yet. The goal is to see if adding trilaciclib to standard chemo and immunotherapy works better before surgery.
BeijingAges 18–75 - NCT06993844RecruitingPhase 1/Phase 2
Study of ETX-636 for advanced solid tumors with PIK3CA mutation
This trial tests an experimental drug called ETX-636 in people whose cancer has a specific gene change (PIK3CA mutation) and has not responded to at least one prior treatment. The goal is to see if the drug can shrink tumors or stop them from growing.
Newport Beach, CaliforniaAges 18 years+ - NCT07369505RecruitingPhase 1
A study of Sapu003 for advanced tumors sensitive to mTOR
This trial tests a new drug, Sapu003, in people with certain advanced cancers that may respond to mTOR-targeted therapy. It is looking at two groups: postmenopausal women with a type of breast cancer (HR+/HER2-), and adults with kidney, liver, neuroendocrine, or TSC-related tumors. The goal is to see if Sapu003 is safe and effective.
AdelaideAges 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 - NCT07605728RecruitingPhase 2
Probiotics to ease stomach problems from breast cancer treatment
This trial tests whether a special probiotic supplement (good bacteria) can reduce belly discomfort caused by abemaciclib, a hormone therapy drug for early breast cancer. You would take the supplement alongside your cancer treatment to see if it helps with stomach side effects.
TaipeiAges 18 years+ - NCT07638852RecruitingPhase 2
Radiotherapy with chemotherapy and immunotherapy for triple-negative breast cancer with brain spread
This study tests a combination of radiation therapy, chemotherapy drugs (platinum-based), and two immunotherapy medications (adebrelimab and bevacizumab) for triple-negative breast cancer that has spread to the brain. The goal is to shrink tumors and improve survival when surgery or standard radiation alone isn't an option.
Shanghai, Shanghai MunicipalityAges 18–70 - NCT05059444Recruiting
Blood test study to watch for cancer coming back
This study looks at whether blood tests can detect signs that cancer may return after curative-intent treatment. You would have blood drawn around your usual follow-up visits for up to 5 years, and your de-identified health data would be shared with study investigators.
Birmingham, AlabamaAges 18 years+ - NCT07454642RecruitingPhase 1
AVA6103 for advanced FAP-positive solid tumors
This trial tests a new drug called AVA6103 for certain advanced cancers that show a protein called FAP. It is for people who have already tried other treatments or cannot take them, and aims to see if the drug is safe and helps shrink tumors.
Grand Rapids, MichiganAges 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.