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 719 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT04800393Recruiting
Breast surgery anesthesia and its effects on immunity and survival
This study compares two ways of giving anesthesia during breast cancer surgery to see how they affect the immune system and outcomes after surgery. It may help identify which anesthesia approach is better for people like you having early-stage, operable breast cancer surgery.
MoscowAges 45–74 - NCT05460975Recruiting
Study of dense breast tissue seen on ultrasound
This study looks at breast cancer risk by analyzing what is seen in dense breast tissue during a screening ultrasound. It may help improve how doctors evaluate risk in people with very dense breasts.
SeoulAges 40–69 - NCT06553235Recruiting
App-based sleep and memory help for breast cancer survivors
This study tests whether an app-based program can improve sleep and thinking problems (like concentration and memory) in people who finished breast cancer treatment 1-5 years ago. If you have trouble sleeping and/or notice changes in your memory or focus, this trial may be able to help.
Aarhus NAges 18 years+ - NCT07263451Recruiting
Testing a new treatment for small, early breast cancers
This study tests if a new treatment called IRE (irreversible electroporation) can safely treat small, early-stage breast cancers. It's for people with a single, small tumor that has not been treated yet.
Hangzhou, ZhejiangAges 18 years+ - NCT05296564RecruitingPhase 1/Phase 2
TCR cell therapy for NY-ESO-1 positive metastatic cancers
This study tests a customized immune-cell treatment made from your own T cells to attack cancers that have NY-ESO-1. It may help shrink tumors in people with metastatic or hard-to-treat cancer when other treatments have not worked.
JerusalemAges 18–70 - NCT05879926RecruitingPhase 3
Testing chemo after hormone therapy in premenopausal early breast cancer
This Phase 3 trial checks whether adding chemotherapy after standard hormone-blocking treatment works better for some premenopausal women with early-stage, ER-positive, HER2-negative breast cancer. It targets patients with limited lymph node spread and a lower-to-intermediate tumor “recurrence” risk score.
Birmingham, AlabamaAges 18–60 - NCT04626440Recruiting
Testing DNA/RNA tools to study different breast cancer types
This study uses special DNA and RNA testing tools to better understand differences between breast cancer tumors in Taiwanese patients. It may help doctors choose more personalized treatment approaches by learning how tumors vary.
TaipeiAges 20 years+ - NCT06193525RecruitingPhase 2
Talazoparib for advanced breast cancer with a DNA repair defect
This trial tests a drug called talazoparib (a PARP inhibitor) for advanced breast cancer that has a specific DNA repair defect (HRD) or a BRCA mutation. The goal is to see if the drug works better when the patient's tumor is tested for this defect just before treatment.
Leiden, South HollandAges 18 years+ - NCT06595147Recruiting
Exercise for heart health in breast cancer survivors
This study tests if a 12-week exercise program improves heart health in women over 60 who have finished treatment for early-stage breast cancer. You will be placed in either an aerobic exercise group or a stretching group to see which helps your heart more.
Edmonton, AlbertaAges 60 years+ - NCT06998108RecruitingPhase 3
A new drug with fulvestrant for HR+/HER2- advanced breast cancer
This trial tests a new investigational drug called BEBT-209 combined with fulvestrant (a hormone therapy) versus placebo with fulvestrant for people with a type of breast cancer that is hormone receptor-positive and HER2-negative. It is for those whose cancer has worsened after previous hormone therapy and has spread locally or to other parts of the body.
Beijing, Beijing MunicipalityAges 18 years+ - NCT05576389RecruitingPhase 2
Fluzoparib plus camrelizumab before surgery for BRCA-related HER2-negative breast cancer
This study tests a combination of two drugs – fluzoparib (a PARP inhibitor) and camrelizumab (an immunotherapy) – given before surgery for early-stage or locally advanced HER2-negative breast cancer in people with an inherited BRCA mutation. The goal is to see if this treatment can shrink the tumor and improve outcomes.
Beijing, Beijing MunicipalityAges 18 years+ - NCT04481763RecruitingPhase 1/Phase 2
Camrelizumab plus radiation for early triple-negative breast cancer
This trial studies whether adding camrelizumab (an immunotherapy drug) to radiation can improve outcomes and be safe for people with early triple-negative breast cancer. It is designed for specific early-stage cases after breast surgery, using tumor and blood tests to match the cancer’s features.
Nanchang, JiangxiAges 18–75 - NCT06417801Recruiting
Study of ESR1 gene changes in blood in advanced breast cancer
This study looks for changes in the ESR1 gene in the blood of people with advanced HR+/HER2- breast cancer. It compares these blood test results with tumor tissue results to learn more about the cancer.
Salvador, Estado de BahiaAges 18–100 - NCT05753618RecruitingPhase 4
Skipping growth-factor shots during breast cancer chemotherapy
This trial tests whether patients can safely skip a preventive white-blood-cell growth shot (G-CSF) while receiving a common breast cancer chemotherapy regimen. It may help reduce injections and side effects, while watching closely for fevers and low white blood counts.
Kingston, OntarioAges 18 years+ - NCT07287098RecruitingPhase 2
Imlunestrant for premenopausal women with ER+/HER2- early breast cancer
This trial tests a new hormone-blocking pill (imlunestrant) in premenopausal women with early-stage ER+/HER2- breast cancer. Depending on whether you've had prior hormone therapy, the study will see if this treatment works better than standard options.
Birmingham, AlabamaAges 18 years+ - NCT06671262RecruitingPhase 2
Immunotherapy plus radiation before breast cancer surgery
This trial tests combining two treatments—an immunotherapy drug (Toripalimab) and radiation—before surgery for a certain type of breast cancer (HR+, HER2-negative) that has spread to lymph nodes. The goal is to see if this combination helps shrink the tumor more than standard therapy alone.
Hangzhou, ZhejiangAges 18–85 - NCT06234137Recruiting
Chemo plus targeted therapy for advanced HER2+ breast cancer
This trial tests a combination of chemotherapy (docetaxel and carboplatin) plus two targeted drugs (Inetetamab and Pyrotinib) for people with locally advanced HER2-positive breast cancer that has not spread to other parts of the body. The goal is to see if this powerful combo can shrink the tumor before surgery or other treatments.
Wenzhou, ZhejiangAges 18–75 - 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 - NCT05981014RecruitingPhase 1/Phase 2
Immune cells from lymph nodes for HER2-negative breast cancer
This trial tests whether taking immune cells from your lymph nodes and giving them back to you can help shrink breast cancer that has not responded fully to initial chemotherapy. It is for women with HER2-negative breast cancer who have had stable disease after two cycles of a standard chemotherapy combination.
Guangzhou, GuangdongAges 18–70 - NCT05981001RecruitingPhase 1/Phase 2
Experimental cell therapy for advanced HER2-negative breast cancer
This study tests a new treatment for advanced HER2-negative breast cancer. Doctors will take immune cells from lymph nodes near your tumor, grow them in a lab, and then give them back to you along with chemotherapy and immunotherapy. This approach aims to help your body fight the cancer more effectively.
Guangzhou, GuangdongAges 18–70 - NCT06121570RecruitingPhase 1
Study of immune cells from lymph nodes for HER2-negative breast cancer
This trial tests whether using a patient's own immune cells from lymph nodes near the tumor, given as a treatment before surgery, can help shrink HER2-negative breast cancer. It is for people whose cancer has not responded fully to two cycles of initial chemotherapy.
Guangzhou, GuangdongAges 18–70 - NCT06956690RecruitingPhase 1/Phase 2
Testing HMBD-501 for HER3-positive advanced solid tumors
This trial tests a new drug, HMBD-501, for people with advanced solid tumors that have a specific protein called HER3. The goal is to see if the drug is safe and if it can help shrink or control the cancer.
La Jolla, CaliforniaAges 18 years+ - NCT07156253RecruitingPhase 1
Study of SYN818 with olaparib for advanced solid tumors
This trial is testing a new drug, SYN818, combined with olaparib for people with advanced solid tumors that have certain genetic changes (BRCA mutations or related DNA repair problems). It may be an option if you have ovarian or HER2-negative breast cancer and other treatments are no longer working.
Shanghai, Shanghai MunicipalityAges 18 years+ - NCT03392233RecruitingPhase 2
Targeted radiation for spinal metastases causing significant pain
This trial tests a focused form of radiation (stereotactic body radiation) to treat cancer spread to the spine, especially when it causes substantial pain. It may help shrink or control the spinal spots while limiting damage to surrounding tissues.
Shanghai, Shanghai MunicipalityAges 18–85
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Common questions
- Are there clinical trials for primary breast cancer?
- Yes. Clin2 currently lists 719 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.