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
- NCT05063136RecruitingPhase 3
Metronomic capecitabine with hormone therapy after breast cancer
This trial studies whether a low-dose “metronomic” chemotherapy medicine (capecitabine) added to standard hormone therapy can reduce breast cancer coming back. It is for people with hormone-receptor–positive, HER2-negative breast cancer after surgery and chemo.
Zhengzhou, HenanAges 18–70 - NCT07658170Recruiting
Fat graft with platelet-rich fibrin for breast reconstruction after lumpectomy
This trial tests using a patient's own fat plus a special blood product (platelet-rich fibrin) to rebuild the breast right after a lumpectomy for breast cancer. It may help improve healing and appearance for women with early-stage, hormone-sensitive breast cancer.
Saint PetersburgAges 18–69 - NCT07661927RecruitingPhase 2
Skipping hormone therapy for low-risk breast cancer
This trial tests whether women with very low-risk, early-stage breast cancer can safely skip hormone therapy after surgery. It is designed for women who are 60 or older and whose cancer shows no spread to lymph nodes and has favorable biology.
AngersAges 60 years+ - NCT07651345Enrolling by invitation
Helping Women Return for Overdue Breast Cancer Screening
This study tests different ways to encourage women in Singapore to return for mammograms (breast cancer screening) if they've fallen behind. You'd be randomly assigned to receive different types of reminders or support to help you schedule your screening.
SingaporeAges 50–69 - NCT03971045RecruitingPhase 2
Pembrolizumab plus low-dose oral chemo for chest wall breast cancer
This Phase 2 trial tests pembrolizumab (an immune therapy) plus low-dose oral cyclophosphamide in people with chest wall breast cancer that has spread locally and may have distant metastases. It aims to see if this combination can shrink tumors and control cancer longer, especially in tumors with certain immune markers.
MilanAges 18 years+ - NCT07635147Recruiting
Decision Support Tool for Advanced Breast Cancer
This study tests a digital tool designed to help patients with advanced (stage IV) breast cancer make treatment decisions. The tool may help you understand your options and feel more confident discussing them with your doctor.
Brooklyn, New YorkAges 18 years+ - 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 - 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 - NCT06102824RecruitingPhase 2
Organoid-guided treatment for advanced breast cancer
This trial tests whether using a miniature version of your tumor grown in a lab can help choose the best treatment for advanced breast cancer. It compares this personalized approach to standard care.
Guangzhou, GuangdongAges 18–80 - NCT07616258Recruiting
Reducing follow-up visits after breast cancer treatment
This study tests whether some patients who finished curative breast cancer treatment can safely have fewer follow-up appointments and scans. Researchers want to see if less frequent monitoring is safe for patients without any signs of cancer returning.
Beaumont, DublinAges 18 years+ - NCT07617025Recruiting
Understanding Breast Cancer Subtypes in BRCA Carriers
This study examines how different molecular subtypes (patterns of genes and proteins) of breast cancer behave in people with BRCA1 or BRCA2 mutations. By studying tumor samples and medical records, researchers hope to better predict which treatments will work best and predict long-term outcomes for BRCA-positive breast cancer patients.
GenovaAges 18 years+ - NCT07612891RecruitingPhase 1/Phase 2
Testing INV-6452 for advanced breast cancer and solid tumors
This study tests a new drug called INV-6452 to see if it is safe and can help control advanced cancers that have grown despite prior treatment. The drug targets specific cancer cell weaknesses, particularly in hormone-sensitive breast cancers without HER2 mutations.
Shanghai, Shanghai MunicipalityAges 18 years+ - NCT05891561RecruitingPhase 2
Short antibody treatment after surgery for early HER2+ breast cancer
This Phase 2 study tests a shorter schedule of trastuzumab and pertuzumab combined with chemotherapy (taxanes) to reduce breast cancer coming back after surgery. It mainly helps people with early-stage, HER2-positive breast cancer that has not spread, by testing whether a shorter plan still works well and is tolerable.
Shanghai, Shanghai MunicipalityAges 18–75 - NCT04985266RecruitingPhase 2
Watch blood DNA for early breast cancer return, then add palbociclib
This study checks for early signs that ER-positive, HER2-negative breast cancer may be coming back by testing your blood for cancer DNA. If signs are found, it tests whether adding palbociclib plus fulvestrant works better than standard hormone therapy alone to prevent recurrence.
AngersAges 18 years+ - NCT07586826RecruitingPhase 2
Romiplostim N01 plus ATRA for low platelets after cancer treatment
This trial tests a combination of two drugs (romiplostim N01 and ATRA) to help raise platelet counts in people whose platelets dropped after chemotherapy for gynecologic, breast, or lung cancer—even though their cancer is now gone. Low platelets can cause bleeding problems, so this treatment aims to help your body make more platelets.
BeijingAges 18 years+ - 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.
New Haven, ConnecticutAges 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 - NCT05349227Recruiting
After-cancer digital coaching and wearable tracking outcomes study
This study tests a digital health coaching program (using phone/tablet check-ins and wearable data) to understand health and quality-of-life outcomes after cancer treatment. It may help you learn healthy habits and track progress over time.
Gainesville, FloridaAges 18 years+ - NCT07574671Recruiting
Ketogenic Diet Study for Early-Stage Breast Cancer
This study tests whether a ketogenic diet (high fat, low carb) can help change the environment around breast cancer tumors in ways that might slow cancer growth. You'll follow the diet for several months while researchers monitor your health and take measurements.
San Antonio, TexasAges 18 years+ - NCT07572370Recruiting
Reducing Follow-up Visits After Breast Cancer Treatment
This study tests whether patients who have finished breast cancer treatment and are doing well can safely have fewer doctor visits and scans. Researchers want to see if reducing routine surveillance affects quality of life and health outcomes.
DublinAges 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+ - NCT07541079RecruitingPhase 3
Testing a New Breast Cancer Drug for Women Who Can't Tolerate Current Therapy
This study tests giredestrant, a new hormone-blocking medication, in postmenopausal women with early-stage ER+ breast cancer who have experienced intolerable side effects from their current aromatase inhibitor therapy. The trial will measure how well you tolerate this new drug and how it affects your quality of life.
Fountain Valley, CaliforniaAges 18 years+ - NCT07524114Recruiting
Blood test to find leftover cancer after treatment
This study uses a blood test to look for tiny bits of cancer DNA after you finish treatment. It may help doctors know if cancer is still there and guide next steps.
Toronto, OntarioAges 18 years+ - NCT07510698Recruiting
Same-day awake mastectomy with immediate breast reconstruction
This study tests whether people can have a mastectomy while awake (using numbing medicine instead of general anesthesia) and go home the same day with immediate breast reconstruction. It may be an option if you're healthy enough and have support at home.
Rome, RomeAges 18–75
Hear when a new Primary Breast Cancer trial opens
We’ll email you when one opens — at most once a week, no account needed, unsubscribe anytime.
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.