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 718 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06227117RecruitingPhase 2
Study of DV and Toripalimab before surgery for HER2-low breast cancer
This trial tests a combination of two drugs (DV and Toripalimab) with chemotherapy before surgery for a specific type of breast cancer (HER2-low, HR-negative) that has not spread too far. The goal is to see if this approach can shrink the tumor and improve outcomes.
Changsha, HunanAges 18 years+ - NCT06259929RecruitingPhase 2
Neoadjuvant abemaciclib and giredestrant for early breast cancer
This trial tests a combination of two oral medications (abemaciclib and giredestrant) given before surgery to women with a common type of early breast cancer (hormone receptor-positive, HER2-negative). The goal is to see if this treatment can shrink the tumor before surgery.
Catania, CataniaAges 18 years+ - NCT06281145Recruiting
Stress reduction for breast or colon cancer patients
This study tests a stress-reducing program for people with breast or colon cancer. It uses a technique called heart rate variability biofeedback to help you manage stress during treatment.
BratislavaAges 18 years+ - NCT06324721Recruiting
Understanding arm swelling after breast cancer treatment
This study looks at why some people feel arm swelling (lymphedema) after breast cancer treatment even when tests don't show swelling. It follows people who are about to have breast surgery with lymph node removal and checks how they feel over time.
Leuven, Vlaams-BrabantAges 18 years+ - NCT06834204Enrolling by invitation
Better care coordination for cancer survivors
This study tests a program to improve communication between your cancer team and your regular doctor. If you have heart or diabetes risks and you're being treated for breast, prostate, bladder, or endometrial cancer, this trial may help coordinate your care.
New Brunswick, New JerseyAges 18 years+ - NCT06335069RecruitingPhase 2
Comparing two PET tracers in ER-positive breast cancer
This trial compares two types of PET scans to see which one better detects ER-positive breast cancer. The results could help doctors choose the best scan for tracking your cancer.
MaastrichtAges 18 years+ - NCT06362616Recruiting
Pre-surgery partial breast radiation for recurrent breast cancer
This trial tests a shorter course of radiation to just part of the breast before surgery for women who have had breast cancer return in the same breast. It's for those who have already had radiation to that breast and have a specific type of cancer (ER+, HER2-).
AmsterdamAges 51 years+ - NCT06389006RecruitingPhase 2
Combination therapy before surgery for HER2-low, hormone-positive breast cancer
This trial tests a combination of two drugs (disitamab vedotin and toripalimab) followed by chemotherapy before surgery for people with a specific type of breast cancer that is hormone receptor-positive and HER2-low. The goal is to see if this treatment can shrink the tumor and improve outcomes.
Shanghai, Fudan University Shanghai Cancer CenterAges 18 years+ - NCT06395519RecruitingPhase 1/Phase 2
Study of ETX-19477 for advanced solid tumors
This trial tests an experimental drug called ETX-19477 for people with advanced solid tumors that have stopped responding to other treatments. It aims to see if the drug is safe and effective, especially for those with certain genetic changes (BRCA2 mutations).
Phoenix, ArizonaAges 18 years+ - NCT06441890RecruitingPhase 2
Personalized chemo before breast cancer surgery
This trial tests whether giving chemotherapy before surgery, guided by the genetic profile of your tumor, can improve outcomes for a specific type of HER2-positive breast cancer. It aims to tailor treatment to each person's cancer biology.
Chicago, IllinoisAges 18 years+ - NCT06445738Recruiting
Can some women safely skip radiation after breast cancer surgery?
This trial is for women 50 and older with early-stage, hormone-positive or HER2-positive breast cancer. It tests whether it is safe to skip radiation therapy after a lumpectomy if an MRI before surgery shows the breast tissue looks a certain way.
San Francisco, CaliforniaAges 50 years+ - NCT06446882Recruiting
HER2DX test to guide treatment for early HER2+ breast cancer
This trial tests whether a new test (HER2DX) can help doctors choose the best treatment combination for HER2-positive breast cancer before surgery. It's for people whose cancer hasn't spread and who haven't started therapy yet.
GrazAges 18 years+ - NCT06450314RecruitingPhase 2
De-escalating treatment for advanced HER2-positive breast cancer
This trial tests whether it's safe to reduce or stop some cancer treatments for people whose advanced HER2-positive breast cancer has been well-controlled for at least 2 years and has no detectable cancer cells in blood tests.
RennesAges 18 years+ - NCT06472583RecruitingPhase 2
Immunotherapy and radiation before breast cancer surgery
This trial tests giving immunotherapy combined with a precise, high-dose radiation boost before surgery for HER2-negative breast cancer. The goal is to see if this approach can improve outcomes, especially for cancers that are more advanced or have spread to a few other spots in the body.
GliwiceAges 18 years+ - NCT06479460Recruiting
Blood test monitoring during chemo before surgery for HER2-positive breast cancer
This trial tests whether a blood test (ctDNA) can help doctors monitor how well chemotherapy before surgery is working in women with HER2-positive breast cancer. It aims to see if changes in the blood can predict treatment success.
Nanjing, JiangsuAges 18–75 - NCT06587789Recruiting
Ribociclib plus hormone therapy for high-risk breast cancer
This trial tests adding ribociclib (a targeted pill) to standard hormone therapy for people with early but high-risk HR-positive, HER2-negative breast cancer, after surgery.
Hangzhou, ZhejiangAges 18–80 - NCT07578571RecruitingPhase 1
Testing a New Cancer Treatment Called IM-1617
This is an early-stage study testing a new drug (IM-1617) for advanced solid cancers that have not responded to standard treatments. The drug combines an antibody with a cancer-killing agent and may help people whose cancer has progressed despite prior therapy.
Sarasota, FloridaAges 18 years+ - NCT06495736Recruiting
Rapid testing during lymph node biopsy for breast cancer
This study tests a quick method to examine lymph node samples during breast cancer surgery. It may help doctors get results faster and plan your treatment better.
Kunming, YunnanAges Any age - NCT06508216RecruitingPhase 1/Phase 2
New drug combo for early relapsed triple-negative breast cancer
This trial tests experimental drugs for people with triple-negative breast cancer that came back within 12 months of finishing initial treatment. The goal is to see if these drugs are safe and can shrink or slow the cancer.
VillejuifAges 18 years+ - NCT06517212RecruitingPhase 2
Tirzepatide for weight loss in MRD-positive early breast cancer
This study tests whether the weight-loss drug tirzepatide (Mounjaro) can help prevent breast cancer from coming back in people who are overweight and have a sign of leftover cancer cells in their blood (called MRD-positive). You must have already finished at least one year of hormone therapy for early-stage breast cancer.
Dallas, TexasAges 18 years+ - NCT06533826RecruitingPhase 2
Testing two antibody drugs for HER2-low breast cancer
This trial tests two antibody-drug conjugates (Enhertu and Datroway) for breast cancer that is HER2-low or HER2-0. It aims to find the best treatment sequence for people whose cancer has stopped responding to prior therapy.
Birmingham, AlabamaAges 18 years+ - NCT06547840RecruitingPhase 1
Study of MOv18 IgE for ovarian, endometrial, and breast cancers with a specific marker
This trial tests a new antibody treatment called MOv18 IgE for patients with advanced ovarian, endometrial, or triple-negative breast cancers that have a protein called folate receptor alpha (FRα) on their tumor cells. The goal is to see if the treatment is safe and effective.
BristolAges 18 years+ - NCT06568705RecruitingPhase 2
Shorter adaptive radiation for early breast cancer
This trial tests a shorter, more targeted course of daily radiation for early-stage breast cancer. The radiation plan is adjusted each day to better fit your body, which may reduce side effects.
BeijingAges 35–70 - NCT06577987RecruitingPhase 1
Study of CID-078 for advanced solid tumors
This trial tests an experimental drug called CID-078 for people with advanced solid tumors that have stopped responding to other treatments. It aims to find the right dose and see if the drug can shrink tumors.
Sarasota, FloridaAges 12 years+
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Common questions
- Are there clinical trials for primary breast cancer?
- Yes. Clin2 currently lists 718 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.