Clinical trials
Primary Breast Cancer clinical trials
Below are recruiting primary breast cancer clinical trials, each written for real people, not researchers. We’re tracking 711 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07321015RecruitingPhase 2
Fluzoparib after platinum for advanced triple-negative breast cancer
This trial tests the PARP inhibitor fluzoparib as a maintenance treatment for women with advanced triple-negative breast cancer whose disease responded or stabilized after platinum-based chemotherapy. The goal is to see if taking fluzoparib daily can delay cancer growth.
TianjinAges 18–75 - NCT05416164Recruiting
Testes less radiation after a complete response to medicines
This study checks whether some people with breast cancer who have no remaining cancer after medicine (neoadjuvant systemic therapy) can safely receive less radiation. It may help reduce side effects while still keeping cancer controlled.
Amsterdam, North HollandAges 18 years+ - NCT07113613RecruitingPhase 2
Can some breast cancer patients skip extra radiation after surgery?
This trial tests whether women who have a complete response to chemotherapy before breast-conserving surgery can safely skip a special radiation boost to the tumor bed. It aims to reduce unnecessary treatment side effects while maintaining good outcomes.
Nanjing, JiangsuAges 30–75 - NCT04824027Recruiting
Breast ultrasound testing during chemotherapy for breast cancer
This study looks at how breast tissue changes during chemotherapy given before surgery (neoadjuvant therapy). It may help doctors better understand treatment effects by taking special breast measurements.
New York, New YorkAges 18 years+ - NCT06081244RecruitingPhase 3
Testing sacituzumab govitecan with or without pembrolizumab for early triple-negative breast cancer
This trial tests a two-drug combination (sacituzumab govitecan and pembrolizumab) versus sacituzumab govitecan alone before surgery for low-risk, triple-negative breast cancer that hasn't spread. The goal is to see which approach works better at shrinking tumors.
Baden-Baden, Baden-WurttembergAges 18 years+ - NCT05535413RecruitingPhase 1/Phase 2
UTD1 plus capecitabine for HER2-negative breast cancer brain mets
This trial tests whether adding a study drug called UTD1 to capecitabine can shrink or control breast cancer that has spread to the brain. It’s for people with HER2-negative metastatic breast cancer who have brain metastases and meet specific safety and lab requirements.
ChangshaAges 18–70 - NCT05219695RecruitingPhase 1
Ultrasound imaging and treatment for breast tumors
This study uses focused ultrasound waves to create detailed images of breast tumors and deliver targeted treatment. It aims to improve how breast tumors are treated while minimizing damage to healthy tissue.
New York, New YorkAges 18 years+ - 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 - NCT06694181Recruiting
Safe and explainable AI for heart, sepsis, and breast cancer patients
This trial uses artificial intelligence (AI) to create prediction models for three groups: cardiology patients, sepsis patients, and breast cancer patients. It aims to make these models safe and easy to understand for doctors.
Philadelphia, PennsylvaniaAges 18 years+ - NCT05450016Recruiting
Using photos and a computer to assess breast appearance after treatment
This study uses a computer (deep neural network) to judge how the breast looks after breast-conserving surgery or full breast reconstruction and radiation therapy. It may help doctors measure cosmetic results more consistently using photographs.
Mumbai, MaharashtraAges 19–80 - NCT06214195RecruitingPhase 3
Shengmai San to prevent heart damage from breast cancer therapy
This trial tests if a traditional Chinese medicine called Shengmai San can protect the heart during chemotherapy and targeted therapy for HER2-positive breast cancer. Patients take the supplement alongside standard treatment to see if it reduces the risk of heart problems.
Hangzhou, ZhejiangAges 18 years+ - NCT05325632RecruitingPhase 2
HER2 breast cancer vaccine plus chemo and targeted antibodies
This Phase 2 study tests a personalized immune-therapy vaccine made from your immune cells, given with weekly paclitaxel and HER2-targeted antibodies (trastuzumab and pertuzumab). It aims to improve treatment outcomes for people with HER2-positive breast cancer before standard local treatment (like surgery and radiation).
Tampa, FloridaAges 18 years+ - NCT07586319Enrolling by invitation
Surgery to improve survival in early-stage spread breast cancer
This study tests whether surgery to remove cancer spots can help people with breast cancer that has spread to a few places live longer. You would receive standard cancer medicines plus surgery if you qualify.
Lahore, Punjab ProvinceAges 18 years+ - NCT05111561RecruitingPhase 1
Testing a two-drug combo for RAS-mutant or triple negative breast cancer
This study tests a combination of two new drugs, ZEN003694 and binimetinib, for people with advanced solid tumors that have certain gene changes (like RAS mutations) or triple negative breast cancer. The goal is to see if this combination can shrink tumors or slow their growth.
Boston, MassachusettsAges 18 years+ - 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+ - NCT07256769Recruiting
Vitamin K, D-chiro inositol and α-lactalbumin for bone health
This trial tests a combination of vitamin K, D-chiro inositol, and α-lactalbumin to help maintain bone strength in women with breast cancer who are on hormone therapy and have low vitamin D. It aims to see if these supplements improve bone health while you take a standard bone medication (alendronate).
Latina, ItalyAges 35–70 - NCT06817525RecruitingPhase 2
Chemo and immunotherapy before surgery for early triple-negative breast cancer
This trial tests whether a combination of chemotherapy drugs (nab-paclitaxel and carboplatin) plus an immunotherapy drug (PD1 inhibitor) given before surgery can help treat early-stage triple-negative breast cancer. It aims to improve outcomes by using these treatments before the main surgery.
Zhengzhou, HenanAges 18–65 - NCT03561740RecruitingPhase 3
Capecitabine plus usual treatment for high-risk HER2 breast cancer
This trial looks at whether adding a chemotherapy medicine called capecitabine (taken in smaller, regular doses) to the standard after-surgery (adjuvant) treatment can lower the chance of cancer coming back in people with early-stage, high-risk HER2-positive breast cancer. It targets patients who still had cancer left after earlier treatment or who had higher-risk tumor features.
Guangzhou, GuangdongAges 18–70 - NCT05037825Recruiting
Study gut microbes with immune therapy in several solid cancers
This trial looks at how the gut microbiome (the bacteria in your digestive system) relates to outcomes when you take standard immune “checkpoint” cancer medicines. If you’re eligible, they’ll collect stool samples while you receive treatment for certain cancers.
Elizabethtown, KentuckyAges 18 years+ - NCT04803539RecruitingPhase 2/Phase 3
ctDNA-guided booster treatment after chemo for triple-negative breast cancer
This trial uses a blood test called ctDNA to see who is at higher risk after surgery and standard chemotherapy for triple-negative breast cancer. If your ctDNA test is positive, you may receive an extra “boost” treatment to help reduce the chance the cancer returns.
Guandong, GuangdongAges 18–80 - NCT06314906RecruitingPhase 3
Acupuncture plus anti-nausea drugs for breast cancer chemo side effects
This trial tests whether adding electroacupuncture (a type of acupuncture with mild electrical pulses) to standard anti-nausea medicine can better prevent nausea and vomiting caused by strong chemotherapy. It is for people with early-stage breast cancer who are about to start a very strong chemotherapy regimen.
Lanzhou, GansuAges 18–75 - NCT06340516Recruiting
Looking at a blood test to track heart health during HER2 breast cancer treatment
This trial is checking if a simple blood test (NT-proBNP) can help spot early signs of heart side effects from certain breast cancer treatments (chemotherapy plus HER2 blockers). If successful, it might help doctors adjust treatment sooner to protect your heart.
GothenburgAges 18 years+ - NCT06336070Recruiting
Power training for metabolic health in postmenopausal cancer survivors
This trial compares two types of exercise—muscle power training and metabolic power training—to see which better improves your body's ability to use energy and control heart function. You may qualify if you are a postmenopausal woman who has had breast cancer and is not currently active.
Valencia, ValenciaAges 35–75 - NCT07832396Enrolling by invitation
Mammogram reminder study for women in Singapore
This study tests different ways to encourage women in Singapore to get a mammogram, which is an X-ray of the breast that helps find cancer early. If you are due for a mammogram, this study may help you get screened sooner.
SingaporeAges 50–69
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Common questions
- Are there clinical trials for primary breast cancer?
- Yes. Clin2 currently lists 711 recruiting primary 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 primary 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 primary 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.