Clinical trials
Breast clinical trials
Below are recruiting breast clinical trials, each written for real people, not researchers. We’re tracking 2,627 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- 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 - 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 - NCT04222413RecruitingPhase 1
Study of metarrestin for advanced solid tumors
This study tests an experimental drug called metarrestin for people with solid tumors that have spread or come back after standard treatment. It may help by targeting a protein involved in cancer cell growth.
Fairway, KansasAges 12–120 - 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 - 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+ - 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 - NCT03934905RecruitingPhase 1/Phase 2
Sulforaphane supplement to protect the heart during doxorubicin
This trial tests whether a nutritional supplement called sulforaphane (SFN) can help protect heart function in people with breast cancer who are receiving doxorubicin (a chemotherapy that can affect the heart). Participants take caplets and have heart and safety monitoring to see if the supplement reduces heart-related side effects.
Lubbock, TexasAges 18–89 - NCT03796559Recruiting
Magnetic marker helps find breast cancer lymph nodes
This study uses a tiny magnetic marker (called Magseed) placed in a breast cancer–affected underarm lymph node, then tracks whether surgeons can find and remove the correct nodes after chemotherapy. It may help reduce the chance of missing cancer in the underarm while aiming for more accurate surgery.
Houston, TexasAges 18 years+ - NCT03740256RecruitingPhase 1
HER2-targeted oncolytic virus plus custom immune cells for solid cancers
This Phase 1 study tests a treatment plan that combines a virus designed to attack cancer with your own custom immune cells that target HER2. It aims to shrink advanced HER2-positive solid tumors (and make future options safer/more effective).
Houston, TexasAges 18 years+ - NCT03702309Recruiting
Banking and testing blood samples to study cancer
This study collects blood samples to “test and store” (bank) information that may help doctors understand cancer in the future. You might be able to join if you’re an adult with confirmed cancer or a higher-than-usual risk for cancer.
Toronto, OntarioAges 18 years+ - NCT03604315RecruitingPhase 1
PET/CT scan testing a new radioactive tracer for tumors
This early-phase study uses PET/CT scans to see how well a new radioactive tracer (a tiny dose of a special material) highlights solid tumors in the body. It may help researchers learn whether this tracer can better find and track tumor spots seen on standard scans.
Houston, TexasAges 18 years+ - NCT03562273Recruiting
GammaPod planning study for breast cancer quality of life
This study looks at how GammaPod radiation planning after a lumpectomy affects quality of life and comfort. Your doctors will use imaging and a structured plan to help predict outcomes and refine care.
Bel Air, MarylandAges 18 years+ - NCT03321045RecruitingEarly Phase 1
PET scan to predict benefit from HER2-targeted breast cancer therapy
This early-phase study uses a special PET scan with a drug tagged for imaging to predict how well HER2-targeted treatments will work. It may help doctors choose the most effective therapy for HER2-positive breast cancer.
Birmingham, AlabamaAges 18 years+ - NCT03412877RecruitingPhase 2
Personalized immune-cell therapy for advanced metastatic cancers
This trial tests a personalized cell therapy made from your own immune cells, changed to recognize “neoantigens” on cancer cells. It’s designed for people with metastatic (advanced spread) solid cancers or certain other cancers who have tried standard treatments but cancer is still growing.
Bethesda, MarylandAges 18–72 - NCT03408353Recruiting
MERIT study uses mammogram and blood tests to assess breast cancer risk
This study looks for signs in blood samples and imaging that may help estimate breast cancer risk earlier. You would do a mammogram and give blood at the start and then again at yearly follow-up visits.
Houston, TexasAges 25–80 - NCT03396341Recruiting
Surveys after genetic risk results for certain breast cancer genes
This study asks women to complete surveys after learning their genetic risk results for certain breast cancer–related gene changes. It helps researchers understand how people respond and what they think or feel after getting these results.
Boston, MassachusettsAges 25 years+ - NCT03124212Recruiting
Genetic testing guidance for inherited breast, ovarian, or colon cancer risk
This study helps people in Switzerland who already have a known inherited cancer gene change understand what it means for them and their family. It focuses on people with specific known mutations related to hereditary breast/ovarian cancer and Lynch syndrome.
Fribourg, Canton of FribourgAges 18 years+ - NCT03050268Recruiting
Study of childhood cancer risk in families
This study looks at inherited (family) risk for childhood cancers, including families with early cancers or known cancer risk conditions. It may help researchers understand why some children get cancer and improve future risk detection and care.
Memphis, TennesseeAges Any age - NCT03096418RecruitingPhase 4
Weekly paclitaxel before surgery, using tumor tests to guide care
This trial gives weekly paclitaxel chemotherapy before breast surgery, then studies tumor “biomarkers” to see how well treatment is working. The goal is to improve how doctors predict which patients benefit and who may need different approaches.
Iowa City, IowaAges 18 years+ - NCT02830724RecruitingPhase 1/Phase 2
CAR T therapy using blood immune cells for CD70 cancers
This trial tests a personalized immune-cell treatment (CAR T) built from your own blood lymphocytes. It targets cancers that show a marker called CD70, aiming to slow or stop the cancer when other treatments didn’t work.
Bethesda, MarylandAges 18–72 - NCT02743858Recruiting
Watch swelling study after breast lymph node surgery
This study looks at how and when swelling (lymphedema) happens after breast cancer surgery on the armpit lymph nodes. You may be followed closely after your planned one-sided procedure to better understand who gets swelling and how it changes over time.
Basking Ridge, New JerseyAges 18 years+ - NCT02906943Recruiting
Testing cancer tissue to guide targeted treatment choices
This trial studies advanced solid tumors by using stored tumor samples to look for molecular clues. The goal is to help doctors better choose cancer treatments that may work for your specific tumor.
Hamilton, OntarioAges 18 years+ - NCT03017573Recruiting
Cancer biobank study linking tumor, immune system, and environment
This study collects tumor and related samples from people with certain newly diagnosed cancers. Researchers use these samples to better understand how cancer cells, the surrounding tissue, and the immune system interact, which may guide better future treatments.
BordeauxAges 18 years+
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Common questions
- Are there clinical trials for breast?
- Yes. Clin2 currently lists 2,627 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.