Clinical trials
Breast Cancer Stage I clinical trials
Below are recruiting breast cancer stage i clinical trials, each written for real people, not researchers. We’re tracking 1,197 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT04215003RecruitingPhase 1/Phase 2
Study breast cancer treatment guided by tumor pathway tests
This trial tests new treatment given before surgery for certain stage IIb–IIIc breast cancers. It uses results from your tumor to guide the treatment plan and aims to improve how well the therapy works before the operation.
Shanghai, Please SelectAges 18–70 - 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 - NCT05360290Recruiting
Study checks cancer cells in breast tissue after surgery
This trial looks for circulating tumor cells—cancer cells that may travel in the blood—after standard breast cancer treatment, including chemotherapy before surgery and surgery itself. It may help doctors understand who might be at higher risk and tailor follow-up care.
Shanghai, Shanghai MunicipalityAges 18–70 - NCT06341621RecruitingPhase 3
Skipping chemo for ER+/HER2- breast cancer with 1–3 positive nodes
This trial tests whether skipping chemotherapy is safe for women with a specific type of early-stage breast cancer (ER-positive, HER2-negative) that has spread to 1–3 lymph nodes. Instead of chemo, you would receive a targeted pill called abemaciclib after standard hormone therapy.
ShanghaiAges 18–80 - NCT06738654Recruiting
Robotic breast-conserving surgery through the armpit for early-stage breast cancer
This trial tests a new robotic technique for removing early-stage breast cancer through the armpit, leaving no scar on the chest. It may be an option for women who want to keep their breast shape and avoid visible scarring.
Chongqing, Chongqing MunicipalityAges 18 years+ - NCT05835739Recruiting
Study of breast cancer prevention in BRCA1/2 mutation carriers
This is an observational study that looks at how different cancer prevention approaches affect women with harmful (deleterious) BRCA1 or BRCA2 mutations. It may help improve future prevention and follow-up plans for women at higher inherited risk.
Aviano, PordenoneAges 18 years+ - NCT06538896RecruitingPhase 2
Tislelizumab and nab-paclitaxel for advanced triple-negative breast cancer with bone spread
This trial tests a combination of two drugs, tislelizumab (an immunotherapy) and nab-paclitaxel (a chemotherapy), as the first treatment for advanced triple-negative breast cancer that has spread to the bones. It aims to see if this combination can help shrink or control the cancer.
Hangzhou, ZhejiangAges 18–70 - NCT05190094RecruitingPhase 2
Test blood-based laser scan to guide first-line breast cancer treatment
This Phase 2 study uses a specialized laser test on a blood sample to predict how well palbociclib plus letrozole or anastrozole will work. It’s for certain postmenopausal women with HER2-negative, hormone-receptor positive, advanced (stage IIIb/IV) breast cancer.
BlidaAges 18 years+ - NCT06884852Recruiting
Preventing pain after mastectomy: nerve block vs. epidural
This study compares two methods to prevent long-term pain after breast cancer surgery: a nerve block using ultrasound guidance or an epidural. The goal is to see which helps women feel less pain months after their mastectomy.
CairoAges 18–65 - NCT04817540RecruitingPhase 2
Testing anti-HER2 treatment for HER2-enriched early breast cancer
This trial tests an anti-HER2 medicine in people whose breast cancer is classified as “HER2-enriched” using a special lab test (PAM50). It aims to see whether this treatment can help prevent or control cancer that cannot be fully removed by surgery.
SeoulAges 19 years+ - 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 - 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+ - NCT05621837Recruiting
Biomarker study to guide treatment for several advanced cancers
This study measures how strongly your immune system is being suppressed and uses that information to help personalize cancer treatment. It mainly looks at people with certain advanced cancers and needs tumor tissue and follow-up to check possible immune-related markers.
MilanAges 18–90 - NCT05872295RecruitingPhase 1
Study drug for HER2-positive advanced cancers
This Phase 1 trial tests IKS014 to see how safe it is and how well it works in advanced solid tumors that have HER2. You may be eligible if your tumor is HER2-positive (including certain “low HER2” types) and your body’s blood counts and organ function are strong enough.
Newport Beach, CaliforniaAges 18 years+ - NCT06636981RecruitingPhase 2
Combination therapy for advanced triple negative breast cancer
This trial tests a new combination of a vitamin A derivative (all-trans retinoic acid), an immunotherapy drug (toripalimab), and chemotherapy for people with advanced triple negative breast cancer that cannot be removed by surgery or has spread. The goal is to see if this combination helps shrink or control the cancer better than current treatments.
Shanghai, Shanghai MunicipalityAges 18 years+ - NCT07010939Recruiting
Side effects and quality of life after breast cancer treatment in China
This study looks at how local treatments like surgery, chemotherapy, radiation, hormone therapy, or targeted therapy affect your side effects and quality of life. Researchers want to learn from women with early-stage breast cancer to improve care.
Beijing, Beijing MunicipalityAges 18 years+ - NCT04861077RecruitingEarly Phase 1
PET/MRI monitoring for PD-L1–positive triple-negative breast cancer
This early-phase study uses advanced PET/MRI scans to monitor how immunotherapy treatment works in people with triple-negative breast cancer that is PD-L1 positive. It may help doctors better track tumor changes in the body over time.
Birmingham, AlabamaAges 18–75 - NCT07413939RecruitingPhase 2/Phase 3
Study of RO7771950 vs tucatinib for HER2-positive breast cancer
This trial tests a new drug, RO7771950, against another drug called tucatinib. Both are given with standard chemotherapy to see which works better for advanced breast cancer that is HER2-positive. People with brain metastases may join.
Germantown, TennesseeAges 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 - NCT06878625RecruitingPhase 2
Trop-2 drug combo for advanced triple-negative breast cancer
This trial tests a new drug combination (Trop-2 antibody-drug conjugate plus other therapies) for advanced triple-negative breast cancer that has spread or come back. It may offer a new option for people who have had only 1–2 prior chemotherapies and have not used immunotherapy or anti-angiogenic drugs before.
Tianjin, Tianjin MunicipalityAges 18–70 - NCT05939830Recruiting
Skipping axillary lymph node surgery after treatment response
This study looks at whether some breast cancer patients can safely skip a surgery that removes lymph nodes in the armpit after their initial (pre-surgery) treatment shows the armpit is likely clear. It may reduce surgical side effects if the armpit truly responds well.
NanjingAges 18–70 - NCT07525869Recruiting
Pegfilgrastim to prevent low white blood cells in triple-negative breast cancer
This study tests whether a medicine called pegfilgrastim can help prevent dangerously low white blood cell counts in women with triple-negative breast cancer receiving a specific chemotherapy combination. Low white blood cells increase infection risk, so this medicine may help patients stay safer during treatment.
Seoul, Seodaemun-guAges 19–70 - NCT05408845RecruitingPhase 2
Study drug vs standard care for HER2 salivary gland cancer
This Phase 2 trial tests how well ado-trastuzumab emtansine (and compares to two standard treatment options) works for salivary gland cancers that are HER2-positive or HER2-low. It aims to see whether the study drug can control cancer better and with acceptable side effects.
Birmingham, AlabamaAges 18 years+ - NCT06977893RecruitingPhase 3
Chemo and immunotherapy for HR+ breast cancer before surgery
This trial tests whether adding the immunotherapy drug toripalimab to chemotherapy before surgery helps women with a certain type of breast cancer (HR+, HER2-). It aims to see if this combination works better than chemotherapy alone.
HangzhouAges 18–75
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Common questions
- Are there clinical trials for breast cancer stage i?
- Yes. Clin2 currently lists 1,197 recruiting breast cancer stage i 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 breast cancer stage i 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 breast cancer stage i 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
- Breast Cancer Early Stage Breast Cancer (Stage 1-3)
- Breast Cancer (Triple Negative Breast Cancer (TNBC))
- Anatomic Stage IV Breast Cancer AJCC v8
- Anatomic Stage III Breast Cancer AJCC v8
- Anatomic Stage II Breast Cancer AJCC v8
- Anatomic Stage I Breast Cancer AJCC v8
- Early-stage Breast Cancer
- Breast Cancer Stage III
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.