Clinical trials
Breast clinical trials
Below are recruiting breast clinical trials, each written for real people, not researchers. We’re tracking 2,691 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT04315233RecruitingPhase 1
Testing two drugs for hard-to-treat triple-negative breast and ovarian cancer
This Phase 1 trial tests ribociclib plus belinostat in people with metastatic triple-negative breast cancer or recurrent ovarian cancer. It also looks at your tumor’s genetics (from a fresh biopsy) to see who might respond better.
Salt Lake City, UtahAges 18 years+ - NCT04344496Recruiting
Collecting breast cancer tissue to predict recurrence risk
This study builds a “genome atlas” to better predict the chance that breast cancer will come back. It asks participants to share medical information and provide blood and tumor tissue samples, including samples kept in paraffin.
TaipeiAges 20 years+ - NCT04353557Recruiting
Blood test monitoring in early-stage breast cancer
This trial uses a special blood test to track cancer signals (called ctDNA) during and after treatment for early breast cancer. It aims to see whether monitoring these signals can help guide follow-up and treatment decisions.
Chongqing, Chongqing MunicipalityAges 18–80 - NCT04356235Recruiting
Comparing immediate vs delayed breast implant reconstruction results
This study compares two timing options for rebuilding the breast with implants, looking at cosmetic results, quality of life, and patient satisfaction. It may help you understand which approach could fit you better and what to expect over follow-up time.
BudapestAges 18–65 - NCT04362826Recruiting
Trial tests a probiotic to change gut microbes in breast cancer
This study gives a probiotic to see whether it safely changes the gut’s bacteria and fungi (your “microbiome”) in people with breast cancer. The researchers want to learn if this shift in gut microbes might support breast cancer treatment or health during care.
Cleveland, OhioAges 18–65 - NCT04368702Recruiting
MRI-guided radiation for people needing radiation for cancer
This study tests whether radiation given with help from MRI (a type of scan) can better treat cancers that need radiation. You may be eligible if your cancer is confirmed and you can safely have MRI scans.
Boston, MassachusettsAges 18 years+ - NCT04371913Recruiting
Second chance breast-conserving treatment for certain breast recurrences
This trial studies a personalized plan to remove and re-treat a limited breast recurrence while trying to keep the breast. It may help people whose cancer came back in the same breast after prior breast-conserving treatment, with certain size and spread limits.
Brooklyn, New YorkAges 19–90 - NCT04373655Recruiting
Lymph node surgery after chemotherapy for invasive breast cancer
This trial studies how doctors should operate on lymph nodes after you finish chemotherapy given before surgery. It may help improve treatment planning for people whose breast cancer has spread to nearby lymph nodes, but not to distant organs.
Esslingen am NeckarAges 18 years+ - NCT04434040RecruitingPhase 2
Atezolizumab and sacituzumab to prevent breast cancer return
This trial tests two medicines after surgery and chemotherapy to help lower the risk that triple-negative breast cancer comes back. It’s for people whose cancer still showed “residual” invasive disease after neoadjuvant (before-surgery) chemotherapy, and whose blood test shows traces of tumor DNA.
San Francisco, CaliforniaAges 18 years+ - NCT04437160RecruitingPhase 2
Chemo after surgery for triple-negative breast cancer with leftover tumor
This Phase 2 study tests chemotherapy given after surgery for people with triple-negative breast cancer who still have cancer left after initial (neoadjuvant) chemo. It may help lower the chance the cancer comes back in people at higher risk based on leftover tumor and lymph node findings.
Beijing, Beijing MunicipalityAges 18–75 - NCT04457895Recruiting
Yoga and physical therapy program for hormone therapy breast cancer pain
This trial studies whether a combined physical therapy, yoga, and patient education program can reduce pain in people with non-metastatic breast cancer who are taking hormone therapy. It may help with pain and day-to-day comfort while you continue hormone treatment.
Libourne, AquitaineAges 18–99 - NCT04468061RecruitingPhase 2
Study chemo drug plus immunotherapy for metastatic triple-negative breast cancer
This trial tests sacituzumab govitecan (an antibody-drug medicine) with or without pembrolizumab (an immune-system therapy) in people with metastatic triple-negative breast cancer. It may help by shrinking tumors and improving immune control, especially for patients with specific tumor marker results.
Stamford, ConnecticutAges 18 years+ - NCT04469296Recruiting
Diet changes before surgery for hormone-receptor breast cancer
This trial tests whether changing your diet before your breast surgery can help people with early, hormone-receptor (ER/PR+) breast cancer. It focuses on patients who have not started treatment yet and want to keep surgery as the main treatment.
Montpellier, HeraultAges 18–80 - NCT04472845Recruiting
Shorter or longer breast radiation after surgery for high-risk cancer
This trial compares two schedules of radiation after breast surgery in people with high-risk, node-positive breast cancer. The goal is to see whether giving radiation in 1 week or 2 weeks works well and is safe after standard treatments.
ChandigarhAges 18 years+ - NCT04476485Recruiting
Predicting breast cancer recurrence after extended hormone therapy
This trial looks at factors that may predict whether hormone receptor–positive breast cancer will come back after you’ve already completed 5 years of hormone (endocrine) therapy. It may help identify who benefits most from longer treatment and follow-up.
Harbin, HeilongjiangAges 18–70 - NCT04481763RecruitingPhase 1/Phase 2
Camrelizumab plus radiation for early triple-negative breast cancer
This trial studies whether adding camrelizumab (an immunotherapy drug) to radiation can improve outcomes and be safe for people with early triple-negative breast cancer. It is designed for specific early-stage cases after breast surgery, using tumor and blood tests to match the cancer’s features.
Nanchang, JiangxiAges 18–75 - NCT04483804Recruiting
Using computer image features to study breast cancer
This study looks at breast cancer images to see whether computer-extracted patterns (“radiomics”) can help improve understanding of the disease. You may be included if your breast cancer diagnosis is confirmed and your medical records are complete.
Hanzhou, ZhejiangAges 18–80 - NCT04486495Recruiting
Minimally invasive lymph node treatment after chemo for node-positive breast cancer
This study looks at a less invasive way to check and treat lymph nodes in the armpit after you receive chemotherapy (and sometimes immunotherapy) before breast surgery. It may help people with cancer that has already spread to armpit lymph nodes by improving how staging and treatment are done.
's-HertogenboschAges 18 years+ - NCT04523857RecruitingPhase 2
Abemaciclib and hydroxychloroquine after breast cancer relapse risk
This Phase 2 trial tests whether abemaciclib plus hydroxychloroquine can kill tiny “leftover” cancer cells in the bone marrow after standard breast cancer treatment. It may help lower the chance of cancer coming back by targeting minimal residual disease.
Philadelphia, PennsylvaniaAges 18 years+ - NCT04540692RecruitingPhase 3
Testing chemotherapy timing for certain HER2-negative breast cancers
This Phase 3 trial studies different ways of giving common chemotherapy drugs (anthracyclines and taxanes) for locally advanced breast cancer that is HER2-negative. It aims to see which order or “sequencing” may work better for people like you.
Cachoeiro de Itapemirim, Espírito SantoAges 18 years+ - NCT04543799Recruiting
Sleep quality study in prostate and early breast cancer patients
This trial studies how sleep quality changes while people with prostate cancer or early breast cancer receive standard treatments. It may help doctors understand which treatment factors affect sleep and identify who might benefit from support for sleep problems.
BellinzonaAges 18 years+ - NCT04562623Recruiting
Studying immune changes in operable breast and ovarian cancers
This study looks at how your immune system behaves around the time of planned surgery for certain breast or ovarian cancers. It may help researchers understand what immune changes happen and how they relate to your cancer.
Lyon, FranceAges 18 years+ - NCT04563507RecruitingPhase 2
Immunotherapy plus hormone therapy for metastatic ER-positive breast cancer
This Phase 2 study tests a combination of immune-based treatments along with hormone (endocrine) therapy to slow or shrink advanced, hormone-receptor positive, HER2-negative breast cancer. You may be a candidate if your cancer has progressed after standard hormone-blocking medicines and you can start treatment with CDK4/6 medicine plus an aromatase inhibitor.
New York, New YorkAges 18–90 - NCT04625023Recruiting
Study of breast cancer biology using mechanics in the body
This trial looks at how breast cancer works in the body, using new “mechanics” measurements to better guide treatment. It may be most helpful if you have (or may have) breast cancer and can take part in study visits and procedures.
Bergamo, BergamoAges 18 years+
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Common questions
- Are there clinical trials for breast?
- Yes. Clin2 currently lists 2,691 recruiting breast 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 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 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.