Clinical trials
Breast cancer clinical trials
Cancer that forms in the cells of the breast, the most common cancer in women. We’re tracking 2,460 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06928818Recruiting
T-DM1 after T-DXd for advanced HER2-positive breast cancer
This trial looks at whether a different targeted therapy, T-DM1, can work for women with advanced HER2-positive breast cancer after they have already tried another targeted therapy called T-DXd (Enhertu). If you have progressed while on T-DXd and have not had more than three previous treatments for advanced cancer, you may be able to join.
SeoulAges 19 years+ - NCT07017673RecruitingPhase 2
Ivonescimab with chemo for early-stage triple negative breast cancer
This trial tests a new drug, ivonescimab, combined with standard chemotherapy before surgery for people with high-risk early-stage triple negative breast cancer. The goal is to see if adding this drug improves treatment response.
Los Angeles, CaliforniaAges 18 years+ - NCT07045311RecruitingPhase 2
JS207 combination therapy for triple-negative breast cancer
This trial tests a new combination treatment for people with advanced triple-negative breast cancer who have not yet received treatment for their advanced disease. It aims to see if the combination can help shrink or control the cancer.
Hefei, AnhuiAges 18–75 - NCT07097155Recruiting
Avocados and cell aging in breast cancer survivors
This study tests whether eating avocados regularly can affect how your cells age. It is for women who have finished treatment for early-stage breast cancer and currently eat fewer than 2 avocados per week.
Reus, TarragonaAges 40–65 - NCT07106112Recruiting
Carbon vs. Metal marker for breast cancer lymph node marking after chemo
This trial compares two methods to mark lymph nodes in the armpit after chemotherapy for breast cancer. It tests whether a carbon-based marker works as well as a metallic marker to help surgeons find and remove the right lymph nodes.
Saint PetersburgAges 18 years+ - NCT07134153RecruitingPhase 1/Phase 2
T-DXd injected into spinal fluid for HER2 breast cancer with brain spread
This trial tests a new way of giving the targeted drug T-DXd—directly into the fluid around your spine (intrathecal) or through a device under your scalp called an Ommaya reservoir. It's designed for people with HER2-positive breast cancer that has spread to the brain or the lining of the brain/spinal cord.
Shanghai, Shanghai MunicipalityAges 18 years+ - NCT07230535Recruiting
Robotic vs standard mastectomy with DIEP reconstruction study
This trial compares how patients feel after open or robotic mastectomy combined with immediate DIEP flap reconstruction. It aims to see which approach improves wellbeing and recovery for women having this surgery.
BeaumontAges 18 years+ - NCT07236658Recruiting
Using AI to detect arm problems after breast cancer surgery
This trial uses artificial intelligence (a computer program) to help predict arm and shoulder problems that can happen after breast cancer surgery. It aims to find these issues early so they can be treated better.
AnkaraAges 18 years+ - NCT07258108RecruitingPhase 2
Sac-TMT and KL-A167 for HR+/HER2- Breast Cancer
This trial is testing a combination of two drugs, Sac-TMT and KL-A167, in people with a certain type of advanced breast cancer (HR+/HER2-) that is PD-L1 positive. It's for those whose cancer has gotten worse after treatment with a CDK4/6 inhibitor and hormone therapy.
Guangzhou, GuangdongAges 18–75 - NCT07319195RecruitingEarly Phase 1
Study of a new drug injected into tumors for breast cancer
This trial tests a drug called mitazalimab injected directly into the tumor for patients with early-stage or recurrent breast cancer who are scheduled for surgery. The goal is to see if this approach can help the immune system fight the cancer before surgery.
Philadelphia, PennsylvaniaAges 18 years+ - NCT01530373RecruitingPhase 2
Solifenacin vs clonidine to reduce breast cancer hot flashes
This trial compares two medicines—solifenacin and clonidine—to see which one better reduces hot flashes in people taking hormone-blocking cancer medicines. If you have frequent hot flashes, joining could help researchers find an effective option for symptom relief.
Little Rock, ArkansasAges 18 years+ - NCT07457359RecruitingPhase 2
Toripalimab plus radiation for chemo-resistant triple-negative breast cancer
This trial tests if combining an immunotherapy drug (toripalimab) with targeted radiation (SBRT) can help people with triple-negative breast cancer that did not shrink after initial chemotherapy. It aims to improve outcomes before surgery.
HangzhouAges 18–75 - NCT07647263RecruitingPhase 2
New Drug Treatment Before Surgery for HER2-Positive Breast Cancer
This trial tests a new drug called trastuzumab rezetecan given before surgery for early-stage HER2-positive breast cancer. It's designed for patients whose cancer doesn't respond well to standard HER2-targeted treatments.
Suzhou, JiangsuAges 18 years+ - NCT05341492RecruitingEarly Phase 1
CAR-T therapy for EGFR/B7H3-positive lung and triple-negative breast cancer
This early-phase trial tests CAR-T cells designed to find and attack tumors that show EGFR or B7H3 markers. It may help people with advanced lung cancer or triple-negative breast cancer after standard treatments.
Guangzhou, GuangdongAges 18–75 - NCT07084519RecruitingPhase 3
Short vs standard radiation after mastectomy with implant reconstruction
This trial compares standard radiation therapy to a shorter course (hypofractionated) for women who have had a mastectomy with implant reconstruction. The goal is to see if the shorter schedule works as well while possibly reducing side effects for the reconstructed breast.
Beijing, ProvinceAges 18–75 - NCT07299812Recruiting
Protecting the heart during breast cancer radiation
This trial tests whether a special breathing technique (called Active Breathing Coordinator) can help keep radiation away from the heart while treating breast cancer with radiation therapy. If you can hold your breath briefly during treatment, this might lower the risk of heart damage.
Pavia, LombardyAges 18 years+ - NCT03144648Recruiting
Study of breast cancer subtypes in premenopausal women in Latin America
This study looks at different biological “subtypes” of breast cancer in women who are still having periods. It helps researchers understand the cancer type and may guide more personalized care in the future.
BarretosAges 20–45 - NCT03572374Recruiting
Sharing breast cancer treatment plans with your workplace
This study tests tools to help people talk with employers and medical staff about breast cancer treatment while working. It aims to improve how treatment and job needs are discussed so patients can get support.
Basking Ridge, New JerseyAges 18–64 - NCT05403177Recruiting
Share your cancer data and samples for Ontario research
This study collects and combines medical records, genetic (genomic) data, and tumor/blood samples from people with cancer. It helps researchers build and improve a large “gold standard” cancer dataset that can support future studies and better understanding of cancer.
Kingston, OntarioAges 18 years+ - NCT05769010RecruitingPhase 2
HER2-positive or low breast cancer brain metastasis drug study
This Phase 2 study tests SHR-A1811 in people with HER2-positive (or HER2-low) advanced breast cancer that has spread to the brain. It aims to shrink brain tumors and control the cancer in the brain, especially when there was no need for urgent local treatment like radiation or surgery.
Zhengzhou, HenanAges 18–75 - NCT06358573RecruitingPhase 2
Injecting INT230-6 then immunochemo before surgery for early TNBC
This trial tests a two-step approach: first, an injection of the drug INT230-6 directly into the breast tumor, followed by a combination of immunotherapy and chemotherapy before surgery. The goal is to see if this sequence can shrink or eliminate the cancer more effectively, potentially allowing for a less extensive surgery.
AarauAges 18 years+ - NCT06778863RecruitingPhase 1
A study of CLSP-1025 for adults with certain solid tumors
This trial tests a new drug called CLSP-1025 for people with advanced solid tumors that have a specific change in the p53 gene (R175H). The drug targets this change to help fight the cancer.
Scottsdale, ArizonaAges 18 years+ - NCT07407920RecruitingPhase 2
Optimizing treatment for early HER2+ and triple-negative breast cancer
This trial aims to see if patients who had a complete response to chemo before surgery can safely stop or reduce their targeted therapy afterward. It includes people with early-stage HER2-positive or triple-negative breast cancer who had no cancer cells left in the tissue removed at surgery (a pathological complete response).
Houston, TexasAges 18 years+ - NCT03667417Recruiting
Study of people with BRCA1/BRCA2 cancer gene changes
This study follows people who carry a harmful BRCA1 or BRCA2 gene mutation, whether or not they currently have breast or ovarian cancer. The goal is to better understand cancer risk over time and how being a carrier may affect screening and care.
MarseilleAges 18 years+
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Common questions
- Are there clinical trials for breast cancer?
- Yes. Clin2 currently lists 2,460 recruiting 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 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 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.