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
- NCT04947280RecruitingPhase 1/Phase 2
Radiation split into small doses for breast cancer bone spread
This trial studies a type of focused radiation given in smaller parts to treat bone metastases from breast cancer. It may help shrink tumors and improve control of pain or growth when standard treatments haven’t worked or surgery isn’t possible.
Shanghai, Shanghai MunicipalityAges Any age - NCT05010356Recruiting
Testing insulin sensitivity after breast cancer treatment
This study looks at how well your body uses insulin (a hormone that helps move sugar from the blood into cells) after breast cancer treatment. It may help researchers understand whether insulin sensitivity changes after chemotherapy and could guide future health monitoring.
Copenhagen, DKAges 20–45 - NCT05241405Recruiting
American ginseng to reduce fatigue after cancer treatment
This study tests whether taking American ginseng for 8 weeks can lessen long-lasting tiredness (fatigue) in people who recently finished certain breast or gynecologic cancer treatments. It may help reduce fatigue when other causes have been ruled out.
AmiensAges 18 years+ - NCT05327543Recruiting
Online yoga program for better quality of life
This study tests whether doing online yoga can improve quality of life in people with non-metastatic breast cancer. It’s meant to help with day-to-day well-being after cancer treatment.
Berlin, State of BerlinAges 18–75 - NCT05440149RecruitingPhase 3
Radiation after surgery for certain node-positive breast cancer
This study tests whether giving radiation after breast surgery can improve outcomes for people with breast cancer that has spread to nearby lymph nodes (N1). You may be a candidate if you’ve already had surgery and meet specific details about your lymph nodes and cancer type.
Seoul, Jongro-guAges 19 years+ - NCT05550415RecruitingPhase 2
Simvastatin with chemotherapy for triple-negative breast cancer
This trial studies whether adding simvastatin (a cholesterol medicine) can slow or change how breast cancer spreads in triple-negative breast cancer. It compares outcomes while you receive planned chemotherapy, and you may or may not be taking simvastatin as part of the study treatment.
Jakarta Pusat, DKI JakartaAges 18 years+ - NCT05683418RecruitingPhase 1
Study of a new drug for PIK3CA-mutated HR+ HER2- breast cancer
This early-stage study tests the safety and tolerability of TOS-358 in women with HR-positive, HER2-negative breast cancer that has a specific gene change (PIK3CA). It may help learn whether this targeted treatment is safe enough to move forward.
Chicago, IllinoisAges 18 years+ - NCT05704062Recruiting
Breast MRI during chemotherapy to measure treatment response
This study uses breast MRI scans to see whether neoadjuvant (before-surgery) chemotherapy is working. If you qualify, you’ll have MRI scans to help doctors understand how your breast cancer responds to standard treatment.
Iowa City, IowaAges 18 years+ - NCT05716516RecruitingPhase 2
Estradiol pill for ER-positive advanced breast cancer
This trial studies whether an estradiol (a form of estrogen) treatment can help people with ER-positive advanced breast cancer. It is mainly for post-menopausal women whose cancer is not curable and has already been treated with endocrine (hormone) therapies.
Lebanon, New HampshireAges 18 years+ - NCT05804578Recruiting
Blood test monitoring for metastatic breast cancer treatment
This trial studies using a blood test to monitor how treatment is working in people with metastatic breast cancer. It may help your care team track your cancer over time with a simpler test.
Kingston, OntarioAges 18 years+ - NCT05866458Recruiting
Radiation after lumpectomy for node-negative breast cancer
This trial studies whether a specific radiation approach after lumpectomy can be helpful for certain people with early breast cancer that did not spread to lymph nodes at diagnosis. It focuses on people who finish neoadjuvant (before-surgery) treatment and reach a full response on final pathology.
Cudgen, CudgenAges 50 years+ - NCT05900895RecruitingPhase 1
Estradiol plus olaparib for ER-positive breast cancer
This early-stage study tests whether combining estradiol (a form of estrogen) with olaparib (a targeted cancer medicine) can control ER-positive, HER2-negative breast cancer that has spread or come back. It may help by attacking cancer cells in a new way after standard hormone-based treatments.
Lebanon, New HampshireAges 18 years+ - NCT05906407Recruiting
Genetic-guided treatment planning for high-risk early breast cancer
This study uses tumor genetic testing to help plan more precise treatment for people with early high-risk breast cancer. You may be asked to give a recent tumor sample so researchers can match your cancer features with the best available options.
AugsburgAges 18–80 - NCT05909332RecruitingPhase 3
Tested antivascular drug plus chemo versus chemo alone for TNBC
This Phase 3 trial compares an “anti-blood-vessel” drug added to chemotherapy versus chemotherapy alone for people with stage II–IIIC triple-negative breast cancer that has been completely removed with surgery. The goal is to see if adding the study drug improves outcomes after surgery (adjuvant treatment).
Beijing, Beijing MunicipalityAges 18–70 - NCT05989828RecruitingPhase 1
Engineered immune cells for advanced triple-negative breast cancer
This trial tests a personalized treatment where your own immune cells are modified to recognize and attack cancer cells that have a specific marker called NY-ESO-1. It is for people with triple-negative breast cancer that has not responded to at least two prior treatments.
Los Angeles, CaliforniaAges 18 years+ - NCT06148038RecruitingPhase 1
CBD oil for breast cancer before surgery
This trial tests if taking CBD oil before surgery can help treat invasive breast cancer. It is for women with fast-growing tumors who are scheduled for surgery.
Charleston, South CarolinaAges 18 years+ - NCT06259162Recruiting
LAG3 study in triple-negative breast cancer
This trial is studying a protein called LAG3 in triple-negative breast cancer. It is for people who will receive chemotherapy before surgery to see if LAG3 levels affect how well the treatment works.
SeoulAges Any age - NCT06279364RecruitingPhase 3
Testing SKB264 vs standard chemo for advanced triple-negative breast cancer
This trial tests a new drug called SKB264 against standard chemotherapy options for people with advanced triple-negative breast cancer who have not yet received chemotherapy for their advanced disease. The goal is to see if SKB264 works better than the usual treatments.
Shanghai, Shanghai MunicipalityAges 18–75 - NCT06375187RecruitingPhase 1
GC203 TIL for advanced solid tumors
This trial tests an experimental TIL therapy (GC203) for people with advanced solid tumors who have no more standard options. Doctors will take a piece of your tumor, make it into a personalized cell treatment, and give it back to try to fight the cancer.
ShanghaiAges 18–75 - NCT06398067Recruiting
Stress management for breast and gynecologic cancer patients
This trial tests a stress management program for women in Vietnam recently diagnosed with breast or gynecologic cancer. It aims to help you cope with treatment and recovery.
Can ThoAges 18 years+ - NCT06413212Recruiting
Personalized drug test for advanced cancer with fluid buildup
This trial uses a special test on your cancer cells to find which chemotherapy might work best for you. The aim is to treat advanced cancer that has caused fluid buildup in the chest or abdomen.
Wuhan, HubeiAges 18 years+ - NCT06460298RecruitingPhase 1/Phase 2
ProAgio and gemcitabine for triple-negative breast cancer that has spread
This trial tests a new drug called ProAgio combined with the chemotherapy gemcitabine for people with triple-negative breast cancer that has spread to other parts of the body. The goal is to see if this combination can shrink tumors or slow the cancer's growth.
Atlanta, GeorgiaAges 18 years+ - NCT06582017RecruitingPhase 1
Study of QXL138AM for advanced solid tumors and multiple myeloma
This trial tests an investigational drug called QXL138AM for people with advanced solid tumors or multiple myeloma that has not responded to standard treatments. The goal is to see if the drug is safe and effective.
Los Angeles, CaliforniaAges 18 years+ - NCT06444269RecruitingPhase 2
Precision radiation before surgery for early hormone-positive breast cancer
This trial tests a focused radiation treatment before surgery for early-stage breast cancer that is hormone receptor positive and HER2 negative. The goal is to give precise radiation only to the tumor, with the hope of reducing side effects and improving outcomes.
Dallas, TexasAges 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.