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
- NCT04159142RecruitingPhase 2
Testing two chemo combos for advanced triple-negative breast cancer
This Phase 2 trial compares two chemotherapy combinations to see which works better for advanced triple-negative breast cancer. You would be asked to join one treatment arm based on study assignment and be followed for response and side effects.
Shijiazhuang, HebeiAges 18–70 - 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+ - NCT06452485Recruiting
Re-irradiation with or without hyperthermia, or surgery only for recurrent breast cancer
This trial compares three treatment options for breast cancer that has come back in the chest or lymph nodes after previous radiation. It looks at adding hyperthermia (heating the tumor area) to re-irradiation, versus just re-irradiation or surgery alone, to see which offers better quality of life and survival with fewer side effects.
AmsterdamAges 18 years+ - 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+ - 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 - 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 - 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+ - 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+ - 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 - 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+ - 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+ - 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+ - 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+ - NCT04722978RecruitingPhase 3
Chemo plus moxifloxacin for metastatic triple-negative breast cancer
This trial tests whether adding moxifloxacin (an antibiotic) to standard chemotherapy helps people with metastatic triple-negative breast cancer live longer or respond better. You may qualify if your cancer has the right lab markers and you haven’t had treatment for metastatic disease yet.
Guangzhou, GuangdongAges 18–70 - 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 - NCT04530890Recruiting
Testing blood tumor DNA in digestive and breast cancers
This study looks at a blood test for “circulating tumor DNA” (tiny pieces of cancer-related DNA in the blood). It may help doctors learn more about digestive, gynecologic, or breast cancers and how patients respond when treatment like chemotherapy or immunotherapy is needed.
PoitiersAges 18 years+ - NCT04771871RecruitingPhase 2
Study tiny RNA changes in triple-negative breast cancer
This trial studies patterns of microRNA (tiny gene-regulating molecules) in women with triple-negative breast cancer. By comparing these microRNA profiles, the study hopes to better understand the disease and potentially guide future treatment choices.
Ile-Ife, OshunAges 18–70 - NCT03417115Recruiting
Breast cancer registry study of treatment and outcomes
This is a registry study that collects real-world information about breast cancer care at the start of treatment. It may help researchers better understand which treatments work best for different groups of people.
Many LocationsAges 18 years+ - NCT03449238RecruitingPhase 1/Phase 2
Pembrolizumab with focused brain radiation for breast cancer brain spread
This trial studies whether pembrolizumab (an immune therapy medicine) plus stereotactic radiosurgery (focused radiation) can better control brain metastases from breast cancer. It may help shrink or slow growth of multiple brain spots with minimal treatment to surrounding tissue.
New York, New YorkAges 19–90 - NCT01788839Recruiting
Long-term health and fertility study for women with breast cancer
This study follows women with breast cancer and certain lymphomas to understand long-term sexual and reproductive health. It may help researchers better support patients’ body changes and wellness over time during and after treatment.
Basking Ridge, New JerseyAges 18 years+ - NCT06875128RecruitingPhase 2
Liver-directed chemo with standard chemo for breast cancer
This trial tests if giving a high dose of chemotherapy directly into the liver, followed by standard chemotherapy, is safe and works better than standard chemo alone for people with breast cancer that has spread mostly to the liver.
Santa Monica, CaliforniaAges 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.