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 1,170 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06920810RecruitingPhase 4
Mistletoe extract plus pembrolizumab for triple-negative breast cancer
This trial tests adding a mistletoe extract (Viscum album) to standard immunotherapy (pembrolizumab) for people with triple-negative breast cancer who have had surgery and radiation. The goal is to see if the combination works better than immunotherapy alone.
Goyang-si, Gyeonggi-doAges 19 years+ - NCT07135661Recruiting
Comparing two proton radiation schedules for early breast cancer after lumpectomy
This study compares two types of proton radiation after lumpectomy for early breast cancer. It tests whether a shorter, stronger course (ultra-hypofractionated) works as well as a slightly longer moderate course.
ShanghaiAges 40 years+ - NCT07066280RecruitingPhase 3
A cream to prevent skin irritation from radiation for breast cancer
This study tests a special cream that may prevent skin irritation (radiation dermatitis) caused by radiation therapy for breast cancer. The cream is made from natural weak acids and aims to protect the skin by keeping the skin's microbiome healthy.
Guangzhou, GuangdongAges 18–70 - NCT07019363RecruitingPhase 3
CDK4/6 inhibitor plus hormone therapy for high-risk breast cancer
This trial tests whether adding a CDK4/6 inhibitor (a type of targeted pill) to standard hormone therapy after surgery can lower the risk of breast cancer coming back in women with high-risk, hormone-receptor-positive, HER2-positive early breast cancer.
ShanghaiAges 18–70 - NCT06911970Recruiting
Exercise and immune response in cancer treatment
This trial tests whether aerobic exercise can help your immune system fight cancer better during chemotherapy or immunotherapy. It is for people with breast or colon cancer that has not spread to other parts of the body.
Sherbrooke, QuebecAges 40–70 - NCT06831955RecruitingPhase 2
Lifestyle program to boost chemo before breast cancer surgery
This trial tests whether a structured lifestyle program (diet and exercise) can make standard chemotherapy before surgery work better for triple-negative breast cancer. It looks at how the program affects your body’s response to treatment and your overall health.
AntwerpAges 18 years+ - NCT06697158Recruiting
Lymphedema therapy and its effect on sleep and quality of life
This study tests a treatment called complex decongestive physiotherapy for women who have swelling in one arm after breast cancer surgery. It looks at whether this therapy can improve their sleep and overall quality of life.
BoluAges 18–85 - NCT06603597Recruiting
HER2-positive breast cancer registry
This registry tracks people with HER2-positive breast cancer to learn more about the disease and how it's treated. You can join at any stage of cancer.
Overland Park, KansasAges 18 years+ - NCT06582017RecruitingPhase 1
Study of QXL138AM for advanced solid tumors and multiple myeloma
This trial tests an investigational drug called QXL138AM for people with advanced solid tumors or multiple myeloma that has not responded to standard treatments. The goal is to see if the drug is safe and effective.
Los Angeles, CaliforniaAges 18 years+ - NCT06490536RecruitingPhase 3
Testing a new treatment for high-risk colon cancer after surgery
This trial tests a new treatment approach for people with certain high-risk colon cancers (stage II or III in the upper colon) after surgery. It aims to see if adding a study drug can help prevent the cancer from coming back.
BerlinAges 18 years+ - NCT04254263RecruitingPhase 3
Pyrotinib after breast cancer therapy for HER2-positive early disease
This trial studies whether adding pyrotinib after standard treatment helps prevent breast cancer from coming back in people with HER2-positive early-stage breast cancer. You may be eligible if you finished chemotherapy plus trastuzumab and still had signs of cancer in the tissue removed during surgery.
Shanghai, Shanghai MunicipalityAges 18–70 - NCT06452485Recruiting
Re-irradiation with or without hyperthermia, or surgery only for recurrent breast cancer
This trial compares three treatment options for breast cancer that has come back in the chest or lymph nodes after previous radiation. It looks at adding hyperthermia (heating the tumor area) to re-irradiation, versus just re-irradiation or surgery alone, to see which offers better quality of life and survival with fewer side effects.
AmsterdamAges 18 years+ - NCT06398067Recruiting
Stress management for breast and gynecologic cancer patients
This trial tests a stress management program for women in Vietnam recently diagnosed with breast or gynecologic cancer. It aims to help you cope with treatment and recovery.
Can ThoAges 18 years+ - NCT06279364RecruitingPhase 3
Testing SKB264 vs standard chemo for advanced triple-negative breast cancer
This trial tests a new drug called SKB264 against standard chemotherapy options for people with advanced triple-negative breast cancer who have not yet received chemotherapy for their advanced disease. The goal is to see if SKB264 works better than the usual treatments.
Shanghai, Shanghai MunicipalityAges 18–75 - NCT06148038RecruitingPhase 1
CBD oil for breast cancer before surgery
This trial tests if taking CBD oil before surgery can help treat invasive breast cancer. It is for women with fast-growing tumors who are scheduled for surgery.
Charleston, South CarolinaAges 18 years+ - NCT05909332RecruitingPhase 3
Tested antivascular drug plus chemo versus chemo alone for TNBC
This Phase 3 trial compares an “anti-blood-vessel” drug added to chemotherapy versus chemotherapy alone for people with stage II–IIIC triple-negative breast cancer that has been completely removed with surgery. The goal is to see if adding the study drug improves outcomes after surgery (adjuvant treatment).
Beijing, Beijing MunicipalityAges 18–70 - NCT05866458Recruiting
Radiation after lumpectomy for node-negative breast cancer
This trial studies whether a specific radiation approach after lumpectomy can be helpful for certain people with early breast cancer that did not spread to lymph nodes at diagnosis. It focuses on people who finish neoadjuvant (before-surgery) treatment and reach a full response on final pathology.
Cudgen, CudgenAges 50 years+ - NCT05327543Recruiting
Online yoga program for better quality of life
This study tests whether doing online yoga can improve quality of life in people with non-metastatic breast cancer. It’s meant to help with day-to-day well-being after cancer treatment.
Berlin, State of BerlinAges 18–75 - NCT04771871RecruitingPhase 2
Study tiny RNA changes in triple-negative breast cancer
This trial studies patterns of microRNA (tiny gene-regulating molecules) in women with triple-negative breast cancer. By comparing these microRNA profiles, the study hopes to better understand the disease and potentially guide future treatment choices.
Ile-Ife, OshunAges 18–70 - NCT03417115Recruiting
Breast cancer registry study of treatment and outcomes
This is a registry study that collects real-world information about breast cancer care at the start of treatment. It may help researchers better understand which treatments work best for different groups of people.
Many LocationsAges 18 years+ - NCT01788839Recruiting
Long-term health and fertility study for women with breast cancer
This study follows women with breast cancer and certain lymphomas to understand long-term sexual and reproductive health. It may help researchers better support patients’ body changes and wellness over time during and after treatment.
Basking Ridge, New JerseyAges 18 years+ - NCT06766058Recruiting
Can aromatherapy reduce distress before breast cancer radiotherapy?
This trial tests if inhaling certain scents (aromatherapy) can help calm and reduce distress in breast cancer patients just before their first radiotherapy session.
SingaporeAges 21–99 - NCT05490433Recruiting
Robot-assisted versus open nipple-sparing mastectomy with reconstruction
This trial compares two surgical approaches to remove the breast using a nipple-sparing mastectomy and do immediate breast reconstruction—either robot-assisted or open surgery. It aims to see how well each method works and how patients do afterward.
ChangwonAges 19–70 - NCT05130801RecruitingPhase 1/Phase 2
MRI and pHLIP dye during breast surgery to map tumors
This trial tests whether a special MRI and an injected light-activated dye (pHLIP® ICG) can help doctors see and target breast cancer during surgery. You may be offered this approach around the time of breast-conserving surgery, to improve how well the tumor area is identified.
Montvale, New JerseyAges 18 years+
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Common questions
- Are there clinical trials for breast cancer stage i?
- Yes. Clin2 currently lists 1,170 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.