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
- NCT06580002RecruitingPhase 2
Can Riluzole Help with Chemo Brain? A Pilot Study
This study tests if a medicine called riluzole (currently used for ALS) can help with 'chemo brain' – memory and thinking problems after cancer treatment. It is for people who feel their mental sharpness has declined after breast cancer therapy, certain chemotherapies, or brain radiation.
Orange, CaliforniaAges 18 years+ - NCT04025541Recruiting
Blood tests to study tumor markers
This trial looks at blood samples to measure substances that may reflect cancer (tumor markers). It may help doctors understand cancer better and improve future monitoring, as long as you can safely and regularly take part.
MontpellierAges 18 years+ - NCT04038619RecruitingPhase 1
Fecal transplant for immune-therapy diarrhea or bowel inflammation
This early-phase study tests whether stool/fecal microbiota transplant (a fecal transplant) can help people who develop significant diarrhea or colitis after immune-checkpoint therapy. It aims to reduce bowel inflammation and improve symptoms, while carefully checking for infections.
Houston, TexasAges 18 years+ - NCT04049214Recruiting
Mindfulness program during breast cancer surgery
This trial tests whether a structured mindfulness program before and after breast cancer surgery can reduce stress and improve how patients feel and cope. You may be offered mindfulness materials to use around the time of your operation.
Newport Beach, CaliforniaAges 18 years+ - NCT04072653Recruiting
Sentinel node biopsy versus watchful waiting after PET
This trial studies whether taking a sample from the sentinel lymph node (a first lymph node that can be involved) improves care compared with observation, after a breast cancer PET scan of the armpit area. It may help people with certain early breast cancers avoid unnecessary procedures if the lymph nodes look negative on scans.
Shanghai, Shanghai MunicipalityAges 18 years+ - NCT04119024RecruitingPhase 1
Gene-edited immune cells for advanced melanoma or solid tumors
This Phase 1 study tests a gene-modified immune cell treatment for advanced cancers that don’t have standard curative options. It may help by attacking cancer cells that show a specific marker called IL13Rα2 after patients receive “conditioning” chemotherapy to prepare the immune system.
Duarte, CaliforniaAges 18–75 - NCT04144023RecruitingPhase 1
Vaccine before surgery for HER2-positive breast duct cancer in place
This Phase 1 study tests a vaccine (H2NVAC) given before surgery to help the body fight HER2-expressing ductal carcinoma in situ (DCIS) that has not been removed yet. Because it’s early-stage, the main goal is to check safety and learn how the treatment may work.
Jacksonville, FloridaAges 18 years+ - NCT04144907Recruiting
Protein needs study for colorectal or breast cancer
This study tests how much protein people with colorectal or breast cancer need during treatment or recovery. It may help improve nutrition guidance and support for maintaining health during chemo or after surgery.
Edmonton, AlbertaAges 45–80 - NCT04170634Recruiting
CT scan study to assess bone strength in certain cancers
This study uses a CT scan to estimate how strong a cancer-affected bone area is, helping doctors evaluate fracture risk and bone management. It is aimed at adults with bone lesions from several common cancer types.
AngersAges 18 years+ - NCT04172753Recruiting
Online MRI-guided radiation therapy on a 1.5T machine
This trial checks whether it’s practical and safe to deliver radiation treatment using real-time MRI guidance, with the process supported online. It may help patients whose doctors recommend radiation by testing a modern way to plan and deliver treatment more precisely.
Tübingen, Baden-WurttembergAges 18 years+ - NCT04258280Recruiting
Genetic counseling support for BRCA-positive mothers
This trial looks at ways to improve genetic counseling for mothers (or primary caregivers) of teens and young adults who are BRCA-positive. It may help you understand genetic results and what they mean for your family, using better counseling support.
Washington D.C., District of ColumbiaAges 18 years+ - NCT04265872RecruitingEarly Phase 1
Bortezomib then pembrolizumab and cisplatin for metastatic triple-negative breast cancer
This early-phase trial tests a new treatment plan for people with metastatic triple-negative breast cancer that has already been treated with standard chemotherapy. It aims to see how well the combination works and whether it’s safe.
Dallas, TexasAges 18 years+ - NCT04273061RecruitingPhase 2
Atezolizumab for tumors that look sensitive on DNA/RNA testing
This Phase 2 study tests atezolizumab, an immunotherapy drug, in people with advanced, incurable solid tumors whose tumor DNA/RNA suggests they may respond. The goal is to see if the treatment works better for patients selected by these lab results.
Vancouver, British ColumbiaAges 18 years+ - NCT04282044RecruitingPhase 1
CRX100 drug trial for advanced cancers with or without pembrolizumab
This Phase 1 trial tests CRX100 (a new cancer medicine) alone and with pembrolizumab (an immune checkpoint drug) in people with advanced solid tumors. It’s mainly designed to check safety and side effects, and to see whether tumors respond, potentially helping people whose cancer has come back or stopped responding to standard treatment.
Scottsdale, ArizonaAges 18 years+ - NCT04294368Recruiting
Fortifying donor breast milk for very premature babies
This study tests whether adding extra nutrition (fortifying) to donated breast milk helps very premature infants grow better and safely. You might be offered a fortified donor milk feeding plan if your baby meets the timing and medical criteria.
New York, New YorkAges 1 day–3 weeks - NCT04297020Recruiting
Checking brain health in breast cancer survivors
This study looks at differences in brain function in people who have had breast cancer, compared with certain people without that history. It’s testing how brain health changes after breast cancer and relates to mood, thinking, and daily functioning.
Los Angeles, CaliforniaAges 35–65 - NCT04303325RecruitingPhase 4
Esketamine after breast surgery for depression and gut changes
This trial studies whether esketamine given around the time of breast cancer surgery can improve depression and change gut bacteria. It also monitors your sleep/deep anesthesia level (with a simple monitoring number).
Shenyang, LiaoningAges 18–65 - NCT04354064Recruiting
Blood DNA test to see early treatment response in solid tumors
This study looks at circulating tumor DNA, which is tiny bits of DNA found in blood, to help assess how solid tumors are responding early. It uses blood samples from healthy adults who are willing to donate.
St Louis, MissouriAges 18 years+ - NCT04389281RecruitingPhase 1
X-ray light-activated therapy for hard-to-treat skin tumors
This early-phase study tests an X-ray–activated medicine that is delivered directly into selected tumors to help control cancer that has not responded to standard treatments. If the injected area can be treated safely, it may shrink or slow the tumor and improve local control.
Washington D.C., District of ColumbiaAges 18 years+ - NCT04447742Recruiting
Study of how healthy babies’ gut microbes develop from birth
This study follows pregnant people from about 20 weeks until delivery, to understand how gut microbes (tiny organisms in the intestines) develop in healthy babies. It may help researchers learn how early-life gut development affects health later on.
BernAges 18–45 - NCT04475640Recruiting
Genetic testing study for cancer patients in different ethnic groups
This study looks at cancer-related inherited gene changes using blood samples. It may help patients and doctors understand cancer risk and guide treatment planning, especially across different ethnic communities.
Scottsdale, ArizonaAges 18 years+ - NCT04478851Recruiting
Exercise program to help people live well with cancer
This study offers an exercise program meant to help people with cancer improve how they live day to day. It may fit you if you are getting treatment now, starting soon, or finished within the last 5 years and can safely do mild activity.
Calgary, AlbertaAges 18–100 - NCT04501523RecruitingPhase 2
ctDNA-guided immunotherapy boost after chemotherapy for triple-negative breast cancer
This Phase 2 study checks whether a blood test that looks for cancer DNA (ctDNA) can help decide who should get an extra 12-month immunotherapy treatment after standard chemotherapy and surgery. It may help reduce the chance of the cancer coming back in people with triple-negative breast cancer.
Guandong, GuangdongAges 18–80 - NCT04503265RecruitingPhase 1/Phase 2
AMXI-5001 study for advanced cancers that won’t respond
This Phase 1/2 trial tests AMXI-5001 in people with advanced cancers that have progressed or stopped responding to standard treatments. It’s mainly designed to find the safest dose and see early signs the treatment might work.
Los Angeles, CaliforniaAges 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.