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
- NCT06606730RecruitingPhase 3
Personalized pembrolizumab after strong chemo response for early triple-negative breast cancer
This trial is for people with early triple-negative breast cancer who had a strong response to chemotherapy combined with pembrolizumab before surgery. It aims to find the best way to continue using pembrolizumab after surgery to reduce the risk of cancer coming back.
BrusselsAges 18 years+ - NCT06642545RecruitingPhase 2
New targeted drug combo for HER2-low breast cancer
This trial tests a new combination of targeted drugs (Disitamab Vedotin and RC148) against a standard chemotherapy (Abraxane) with or without an immunotherapy drug (Toripalimab) for advanced breast cancer that is HER2-low and hormone receptor-negative. The goal is to see if the new combination works better at shrinking tumors and slowing cancer growth.
Beijing, Beijing MunicipalityAges 18 years+ - NCT06660628Recruiting
Radiation therapy with or without breath-hold for left breast cancer
This study compares two types of radiation therapy for left breast cancer: one using a breath-holding technique to protect the heart, and another without it. The goal is to see which is safer and more effective for women who have had surgery.
Beijing, Beijing MunicipalityAges 18–70 - NCT06697938Recruiting
Chemo plus radiation vs. chemo alone for locally advanced breast cancer
This trial compares two treatments for locally advanced breast cancer: chemotherapy before surgery plus radiation, versus chemotherapy before surgery alone. The goal is to see which approach works better for this specific type of cancer.
Chengdu, SichuanAges 18–70 - NCT05941520RecruitingPhase 2
Acolbifene vs low-dose tamoxifen to prevent breast cancer
This Phase 2 trial compares acolbifene and low-dose tamoxifen to see which better lowers breast cancer risk in premenopausal women at high risk. You would be followed with health visits, blood tests, and a breast tissue sampling procedure.
Duarte, CaliforniaAges 35 years+ - NCT06915025RecruitingPhase 3
Study of a new drug for advanced ovarian cancer
This trial tests a new drug called IMNN-001 combined with standard chemotherapy for women with advanced ovarian, fallopian tube, or peritoneal cancer. The goal is to see if adding this drug can improve safety and effectiveness.
Orlando, FloridaAges 18 years+ - NCT06725940Recruiting
PET scan to check treatment response in breast cancer
This trial uses a special PET scan to see how well your breast cancer is responding to neoadjuvant therapy (treatment given before surgery). The goal is to help doctors personalize your care by checking if the cancer is shrinking.
ShanghaiAges 18–65 - NCT06727227Recruiting
Study of Enhertu for HER2-low breast cancer
This study looks at how well the drug Enhertu works for patients with HER2-low breast cancer that has spread. If you are already planning to start Enhertu, researchers will collect data from your regular care to learn more about its effectiveness.
Panagyurishte, PazardzhikAges 18 years+ - NCT06728527Recruiting
Partial breast reconstruction with chest wall flap
This trial tests a specific type of partial breast reconstruction called a chest wall perforator flap. It's for women who previously had a lumpectomy and now want to improve the shape of their breast.
Cambridge, CambridgeshireAges 18 years+ - NCT06744465Recruiting
Light-based monitoring for breast cancer during chemo
This study uses a special light-based device to monitor breast cancer during chemotherapy before surgery. It is for women with HER2-positive or triple-negative breast cancer who are planning chemotherapy first.
Indianapolis, IndianaAges 18 years+ - NCT06797635RecruitingPhase 2
Study of Patritumab Deruxtecan and Pembrolizumab for High-Risk Early Breast Cancer
This trial tests a combination of targeted therapies (patritumab deruxtecan plus pembrolizumab) along with other anticancer drugs for people with a high-risk type of early-stage breast cancer that is either triple-negative or has very low hormone receptors and is HER2-negative. The goal is to see if this approach can help prevent the cancer from coming back.
Santa Monica, CaliforniaAges 18 years+ - NCT06826885Recruiting
Comparing two types of radiation for breast cancer
This trial is testing how well two different radiation techniques, IMPT and IMRT, work for treating breast cancer. It aims to see which one is safer and more effective, so you might benefit from a potentially better treatment approach.
Shanghai, Shanghai MunicipalityAges 18 years+ - NCT06830590Recruiting
Genetic study of early breast cancer in Pakistani women
This study looks at the genetic and protein markers of early breast cancer in Pakistani women. It aims to understand the disease better and possibly guide future treatments.
JamshoroAges Any age - NCT06860815RecruitingPhase 2
Cemiplimab with liver radiation for breast cancer that spread to the liver
This trial tests a combination of a drug called cemiplimab (an immunotherapy that helps your immune system fight cancer) and a type of targeted radiation (Y-90 SIR-Spheres) given directly to liver tumors. It is for people with breast cancer that has spread to the liver and who have already had at least one type of chemotherapy.
Duarte, CaliforniaAges 18 years+ - NCT06867484Recruiting
Breast re-irradiation after second lumpectomy
This trial tests whether giving a second round of radiation to the breast after a lumpectomy for a recurrence is safe and effective. It is for people with a specific type of breast cancer (ER+HER2-) who meet strict criteria regarding prior radiation and tumor characteristics.
Boca Raton, FloridaAges 40 years+ - NCT06896474Recruiting
Breast cancer treatment choice help for women 70 and older
This study tests a decision aid to help women 70 and older with early stage breast cancer choose their treatment. It looks at whether the tool helps patients and their doctors make a confident treatment choice.
Los Angeles, CaliforniaAges 18 years+ - NCT06938360Recruiting
Breast-conserving surgery for central breast cancer study
This trial compares breast-conserving surgery (removing only the tumor and nearby tissue) to total mastectomy (removing the whole breast) for women with breast cancer in the central area of the breast. The goal is to see if the less extensive surgery works just as well.
Xi'an, ShaanxiAges 18–70 - NCT06954623Recruiting
Partial breast re-irradiation for breast cancer recurrence
This trial tests a second round of radiation to just part of the breast for women who had a previous lumpectomy and radiation, and now have a small, early-stage cancer or DCIS in the same breast. The goal is to see if a focused re-treatment is safe and effective.
HeidelbergAges 18 years+ - NCT06966453RecruitingPhase 1/Phase 2
Study of disitamab vedotin for HER2-positive advanced breast cancer
This study tests a new drug called disitamab vedotin for people with advanced breast cancer that has a certain amount of HER2 protein. Depending on your HER2 and hormone receptor status, you may be eligible for one of three groups, each with different prior treatment requirements.
Daphne, AlabamaAges 18 years+ - NCT06967103RecruitingPhase 2
New drug before breast cancer surgery
This trial tests a new drug, QL1706, given alongside chemotherapy before surgery for a certain type of breast cancer. It aims to see if this combination helps shrink tumors before they are removed.
ZhengzhouAges 18 years+ - NCT06993714RecruitingPhase 2
3D-printed absorbable breast implants for reconstruction
This trial tests a new type of breast implant made from a special material that your body can safely absorb over time. It is designed for women who need breast reconstruction after breast cancer surgery, aiming to restore shape without leaving a permanent implant.
Xi'an, ShaanxiAges 18–70 - NCT07003009Recruiting
Immunotherapy washout study for invasive ductal breast cancer
This study looks at how long it takes for a type of immunotherapy drug to clear out of your body in women with invasive ductal breast cancer who are about to start treatment before surgery. It may help doctors decide the best timing for future treatments.
IstanbulAges 18 years+ - NCT07025785Recruiting
Testing for tumor DNA in blood after early-stage breast cancer surgery
This study looks for tiny bits of tumor DNA in your blood after surgery to see if it can help guide future treatment. It's for people who had surgery first (not chemotherapy before surgery) and have not seen the cancer spread.
Chapel Hill, North CarolinaAges 18 years+ - NCT07042581RecruitingPhase 4
Revaree Plus for vaginal dryness in breast cancer survivors
This trial tests a vaginal insert called Revaree Plus to see if it helps breast cancer survivors who have vaginal dryness or pain from hormone therapy. It may be a good option if you are on an aromatase inhibitor or tamoxifen and have discomfort.
Basking Ridge, New JerseyAges 18 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.