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
- NCT06938724RecruitingPhase 2
Avoiding extra surgery in women with HER2+ or triple-negative breast cancer
This trial tests whether women with HER2-positive or triple-negative breast cancer who had a complete response to chemotherapy can safely skip radiation or additional surgery. If you had a complete tumor response after chemo and had breast-conserving surgery, you may be eligible.
MilanAges 18 years+ - NCT04119024RecruitingPhase 1
Gene-edited immune cells for advanced melanoma or solid tumors
This Phase 1 study tests a gene-modified immune cell treatment for advanced cancers that don’t have standard curative options. It may help by attacking cancer cells that show a specific marker called IL13Rα2 after patients receive “conditioning” chemotherapy to prepare the immune system.
Duarte, CaliforniaAges 18–75 - NCT07088263RecruitingPhase 3
Adaptive Chemotherapy for Advanced Breast Cancer
This trial tests a new approach to chemotherapy that adapts over time for people with advanced breast cancer that has not responded to first-line treatment. It is designed to personalize treatment based on how the cancer responds, potentially improving outcomes with fewer side effects.
Guangzhou, GuangdongAges 18–75 - NCT05708235RecruitingPhase 2
Using blood test results to guide breast cancer treatment
This Phase 2 study tests whether doctors can use a blood test (ctDNA) to find breast cancer recurrence risk early and guide further treatment. Depending on your ctDNA result and tumor markers, you may receive standard hormone therapy or one of several additional treatment options.
A CoruñaAges 18 years+ - NCT07174336RecruitingPhase 3
Testing Tersolisib with other treatments for advanced breast cancer
This trial tests a new study drug called Tersolisib combined with other anti-cancer treatments for people with advanced breast cancer that has a specific gene change (PIK3CA). The goal is to see if the combination can help shrink or slow the cancer.
Anchorage, AlaskaAges 18 years+ - NCT07454499Recruiting
Symptom monitoring and health for women on hormone therapy for breast cancer
This trial tests a mobile health program to help women manage symptoms and stay healthy while taking hormone therapy (like tamoxifen or anastrozole) for early-stage breast cancer. It involves using a smartphone app and an electronic pill bottle to track your health and medication.
Philadelphia, PennsylvaniaAges 18 years+ - NCT07117214RecruitingPhase 1
Study of a new imaging agent for breast and lung cancers
This trial tests a new imaging agent called [68Ga]Ga-DWJ155 to see how well it helps detect certain types of advanced breast cancer and non-small cell lung cancer. It may help doctors better understand the cancer and guide treatment decisions.
Groningen, Provincie GroningenAges 18–100 - NCT06950086RecruitingPhase 1/Phase 2
TYK-00540 tablets for advanced solid tumors
This trial tests a new tablet, TYK-00540, alone or with another drug, for people with advanced solid tumors that have stopped responding to standard treatments. It aims to see if the drug can shrink tumors or slow their growth.
Shanghai, Shanghai MunicipalityAges 18 years+ - NCT07060807RecruitingPhase 3
Study of Patritumab Deruxtecan for Advanced HR+/HER2- Breast Cancer
This trial tests a new drug called patritumab deruxtecan (a targeted therapy) for people with a common type of advanced breast cancer (HR+/HER2-). It's for those whose cancer has grown despite treatment with a CDK4/6 inhibitor plus hormone therapy.
Daphne, AlabamaAges 18 years+ - NCT07407439Recruiting
Real-world study of CDK4/6 inhibitors in advanced breast cancer
This study looks at how well CDK4/6 inhibitors (a type of targeted therapy) work in real-world patients with HR+/HER2- advanced breast cancer. By collecting medical data from people treated at this hospital, doctors hope to learn more about the effectiveness and safety of these drugs in everyday practice.
TianjinAges 18 years+ - NCT07660055RecruitingPhase 1
Radioactive drug for advanced solid tumors
This trial tests a new radioactive drug (called 177Lu-DWJ155) that targets and kills cancer cells, along with a similar imaging agent (68Ga-DWJ155) used to see where the drug goes in the body. It is for people with certain advanced solid tumors that have not responded to standard therapies.
Omaha, NebraskaAges 18 years+ - NCT07264998Recruiting
Gut bacteria study in breast cancer patients on Abemaciclib
This study looks at how gut bacteria changes in people taking Abemaciclib (a breast cancer drug) and whether that relates to diarrhea. It may help find ways to prevent or manage this side effect.
Wuhan, HubeiAges 18–75 - NCT05416164Recruiting
Testes less radiation after a complete response to medicines
This study checks whether some people with breast cancer who have no remaining cancer after medicine (neoadjuvant systemic therapy) can safely receive less radiation. It may help reduce side effects while still keeping cancer controlled.
Amsterdam, North HollandAges 18 years+ - NCT06459791Recruiting
Personalized treatment for advanced breast cancer using lab-grown tumor models
This trial tests a personalized approach to cancer treatment. Doctors will grow a ‘mini-tumor’ from a biopsy of your cancer in the lab to help find the best therapy for you. It is for people with advanced breast cancer that has not responded well to standard treatments.
ParisAges 18 years+ - NCT05693766RecruitingPhase 2
Gene test guides treatment for hormone-positive breast cancer
This trial studies whether a gene-signature test can help guide treatment choices for people with hormone receptor–positive (ER and/or PR) breast cancer that has spread or can’t be fully removed. It may help find the best therapy approach after prior hormone therapy and targeted cancer medicine.
Birmingham, AlabamaAges 18 years+ - NCT07467330RecruitingPhase 3
Breast cancer trial: Adding capecitabine to standard treatment
This trial tests if adding a chemotherapy drug called capecitabine to the combination of dalpiciclib and hormone therapy works better than dalpiciclib and hormone therapy alone for advanced breast cancer that is hormone receptor-positive and HER2-negative. It is for people who have not had these treatments before.
Fuzhou, FujianAges 18 years+ - NCT06050109Recruiting
Continuing Ovarian Suppression After 5 Years
This trial checks if staying on ovarian function suppression (OFS) therapy beyond 5 years helps prevent breast cancer from coming back. It's for women with early-stage, hormone-sensitive (HR+ HER2-) breast cancer who have already completed 5 years of OFS.
Wuhan, HubeiAges 18–60 - NCT07046923RecruitingPhase 1
A study of LY4175408 for advanced cancer
This trial tests a new targeted drug (LY4175408) for people with certain advanced solid tumors (lung, endometrial, or triple negative breast cancer) who have already tried standard treatments. The goal is to see if the drug is safe and effective.
Stanford, CaliforniaAges 18 years+ - NCT07357597RecruitingPhase 4
Preventing mouth sores during breast or lung cancer treatment
This trial tests whether a steroid mouthwash can prevent mouth sores caused by the drug Datopotamab Deruxtecan (Dato-DXd). It is for people with certain types of advanced breast cancer or lung cancer who are about to start Dato-DXd for the first time.
Tucson, ArizonaAges 18 years+ - NCT06169371RecruitingTeam says not enrollingPhase 4
Abemaciclib dose escalation for early breast cancer
This study tests whether women with early-stage HR+/HER2- breast cancer can safely take a higher dose of the drug abemaciclib (Verzenio) after surgery. The goal is to keep the treatment as strong as possible while managing side effects.
Chicago, IllinoisAges 18 years+ - NCT06750484RecruitingPhase 2
Testing trastuzumab deruxtecan in HER2-zero breast cancer
This trial tests a new drug called trastuzumab deruxtecan (a targeted antibody-drug combination) for people with advanced breast cancer that never showed any HER2 protein (HER2-zero). The goal is to see if it can shrink tumors and improve outcomes for those who have already had standard treatments.
New Haven, ConnecticutAges 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+ - NCT06966141Recruiting
Real-World Study of Sacituzumab Govitecan for Breast Cancer
This study looks at how well the drug Sacituzumab Govitecan works in real-life settings for people with certain types of advanced breast cancer that have not responded to prior treatments.
Shanghai, Shanghai MunicipalityAges 18 years+ - NCT06607757RecruitingPhase 2
Capivasertib plus fulvestrant for high-risk lobular breast cancer
This trial tests adding capivasertib to fulvestrant for women with a certain type of breast cancer (invasive lobular carcinoma) that is hormone-receptor positive and has a high risk of coming back. The treatment is given before surgery to see if it works better than fulvestrant alone.
AugsburgAges 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.