Clinical trials
Breast cancer clinical trials
Cancer that forms in the cells of the breast, the most common cancer in women. We’re tracking 2,418 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT05323409Recruiting
Better overall care for certain cancer patients
This study looks at how to improve day-to-day support and coordination between cancer doctors and primary care doctors for people with certain early cancers. It may help if you have other ongoing health problems (like diabetes or high blood pressure) or lifestyle factors that need ongoing management during cancer treatment.
Houston, TexasAges 18 years+ - NCT03137095Recruiting
Study how chemotherapy affects brain function in breast cancer
This study looks at changes in thinking and brain function in people with early to locally advanced breast cancer before and during chemotherapy. You may also be offered a brain MRI in a separate optional part of the research to learn more about brain changes.
Rochester, New YorkAges 21 years+ - NCT07581834RecruitingPhase 2
Dalpiciclib plus hormone therapy for early hormone-positive breast cancer
This study tests whether adding a new drug called dalpiciclib to standard hormone therapy improves outcomes for women with early-stage breast cancer that is hormone-receptor positive. The goal is to see if this combination is more effective and safe than hormone therapy alone.
Fuzhou, FujianAges 18 years+ - NCT05918328RecruitingPhase 2
Testing two medicines before surgery for HER2-positive breast cancer
This Phase 2 trial compares nab-PH plus pyrrolitinib versus TCbHP as treatment given before breast surgery. It aims to see which option works better and is safe for people with HER2-positive invasive breast cancer.
Zhengzhou, HenanAges 18–65 - NCT07132749Enrolling by invitation
NEPA for nausea prevention during T-DXd in advanced HER2+ or HER2-low breast cancer
This trial tests whether the anti-nausea combination NEPA (netupitant and palonosetron) can prevent nausea and vomiting caused by the targeted therapy T-DXd in people with advanced HER2-positive or HER2-low breast cancer. It may help you if you are about to start T-DXd for the first time and want to manage treatment side effects.
Seoul, Gangnam-guAges 19 years+ - NCT06414733RecruitingPhase 1
Vaccine for advanced breast or esophageal cancer
This trial tests a vaccine that targets HER2 protein on cancer cells. It is for people with advanced breast or esophageal cancer whose tumors have certain markers. The vaccine may help your immune system fight the cancer.
Indianpolis, IndianaAges 18 years+ - NCT06242470RecruitingPhase 1
Study of MGC026 for advanced solid tumors
This trial tests a new drug called MGC026 that targets a protein called B7-H3 on cancer cells, aiming to shrink or slow different advanced solid tumors. It is an early-phase study to find the right dose and check safety.
Los Angeles, CaliforniaAges 18 years+ - NCT05376878RecruitingPhase 4
PET/MRI scan to guide treatment in HER2+ brain metastatic breast cancer
This trial tests a special PET/MRI imaging scan using a labeled drug to help doctors evaluate HER2+ breast cancer that has spread to the brain. It focuses on patients who plan to receive fam-trastuzumab deruxtecan, a targeted cancer medicine, and aims to see how well the scan can support treatment decisions.
Duarte, CaliforniaAges 18 years+ - NCT04996316Enrolling by invitation
Breast cancer screening decision help for women 40–74
This trial tests a breast cancer screening risk and decision aid to help you and your clinician choose the right next steps for screening and referrals. You may benefit by getting clearer, personalized guidance based on your risk.
Portland, OregonAges 40–74 - NCT04893109RecruitingPhase 2
Study compares two HER2 breast cancer treatments after surgery
This Phase 2 study tests two different medicines given after breast surgery to reduce the risk of cancer coming back. It is only for people with early-stage HER2-positive breast cancer with limited or no lymph node spread.
San Francisco, CaliforniaAges 18 years+ - NCT04169542Recruiting
Study on how COVID-19 affected costs for breast surgery patients
This study asks people with breast cancer who are having breast surgery about how COVID-19 affected their out-of-pocket costs, work income, and job stability. Your answers may help improve support for patients during public health emergencies.
Conroe, TexasAges 18 years+ - NCT04075305Recruiting
Study measuring radiation treatment outcomes with an MR-Linac
This study follows what happens when radiation treatment is guided using an MR-Linac (a special machine that combines MRI imaging with radiation). It may help improve how radiation therapy is planned and assessed, especially for people who can safely have MRI scans.
Pittsburgh, PennsylvaniaAges 18 years+ - NCT05983107RecruitingPhase 2
Chidamide/Everolimus for advanced breast cancer
This trial tests a combination of two drugs, chidamide and everolimus, for people with advanced HR+/HER2- breast cancer. It aims to see if the combination works for tumors with or without a PIK3CA gene mutation. You may be able to join if you've had previous treatment with CDK4/6 inhibitors and up to two prior chemotherapies.
Beijing, Beijing MunicipalityAges 18–75 - NCT06605521Recruiting
Study on removing lymph nodes above the collarbone for breast cancer
This trial tests if removing cancerous lymph nodes above the collarbone helps treat breast cancer that has spread there. It aims to see if this surgery, along with standard treatments, is safe and effective.
Zhengzhou, HenanAges 18–80 - NCT07675967Recruiting
Blood Cell Changes During Cancer Treatment
This study is for people with solid tumors who are about to start chemotherapy or radiation. It looks at how these treatments affect blood cells and may help doctors understand changes in blood health over time.
Boston, MassachusettsAges 18 years+ - NCT07354919RecruitingPhase 2
Testing axelopran for advanced cancer patients on opioids
This trial tests if axelopran can help people with advanced prostate, breast, pancreatic, or lung cancer who are taking opioid pain medicines. It aims to see if the drug is safe and helps with bowel function.
Saint Louis Park, MinnesotaAges 18 years+ - NCT05625659Recruiting
Breast cancer screening for dense breasts using new X-ray scans
This trial compares two imaging tests—CESM (a contrast-enhanced mammogram) and DBT (3D mammography)—to see which works best for women with dense breast tissue. It may help improve how early breast changes are found in dense breasts.
Birmingham, AlabamaAges 45–74 - NCT05183126RecruitingPhase 4
Paclitaxel dose study using a 1-hour muscle-area infusion
This trial studies how paclitaxel (a chemotherapy medicine) behaves in the body when given by a specific 1-hour infusion approach. It may help refine dosing for people with cancer using measurements from scans, and it includes a medicine schedule you must match.
Ann Arbor, MichiganAges 18 years+ - NCT07524114Recruiting
Blood test to find leftover cancer after treatment
This study uses a blood test to look for tiny bits of cancer DNA after you finish treatment. It may help doctors know if cancer is still there and guide next steps.
Toronto, OntarioAges 18 years+ - NCT07424547RecruitingPhase 1
Study of SYS6043 for advanced or metastatic solid tumors
This trial tests a new study drug (SYS6043) for people with advanced or metastatic solid tumors that have not responded to or are not candidates for standard therapies. The drug targets a protein called B7-H3 on cancer cells to help stop tumor growth.
Plantation, FloridaAges 18 years+ - NCT07604571RecruitingPhase 1
Testing IEV407 for Advanced Hormone-Sensitive Breast Cancer
This study tests a new drug called IEV407, either alone or combined with existing hormone therapies, in people with advanced breast cancer that is hormone-receptor positive and HER2 negative. The trial aims to find the right dose and see if this combination helps people whose cancer has stopped responding to previous treatments.
New Haven, ConnecticutAges 18 years+ - NCT04281641Recruiting
Testing marker-guided treatment before surgery for HER2-positive breast cancer
This trial studies how well a HER2-focused treatment plan works before surgery (“neoadjuvant” therapy) for operable HER2-positive breast cancer. It also uses tumor tissue tests to find markers that may predict who benefits most.
Shanghai, Shanghai MunicipalityAges 18–70 - NCT04481932RecruitingPhase 2
Trastuzumab with chemo for HER2-positive breast cancer
This Phase 2 study tests whether adding trastuzumab (a targeted antibody) given with chemo and extra drugs can better treat certain HER2-positive, locally advanced or inflammatory breast cancers. It may help by improving cancer control in people who have not had prior anti-cancer treatment for their breast cancer.
Beijing, Beijing MunicipalityAges 18–70 - NCT04878666Recruiting
Breast cancer chest-wall recurrence quality of life with heat treatment
This trial studies how a special heating radiation treatment (“hyperthermia radiotherapy”) affects quality of life in people whose breast cancer has come back in the chest area. It may help show whether this treatment approach is tolerable and beneficial for everyday well-being.
Tübingen, Baden-WurttembergAges 18 years+
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Common questions
- Are there clinical trials for breast cancer?
- Yes. Clin2 currently lists 2,418 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.