Clinical trials
Breast Cancer Diagnosis clinical trials
Below are recruiting breast cancer diagnosis clinical trials, each written for real people, not researchers. We’re tracking 889 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06970912RecruitingPhase 2
ctDNA-Guided Reduced Chemo in HR+/HER2- Breast Cancer
This study is testing whether using a ctDNA blood test can help doctors decide if patients with hormone receptor-positive, HER2-negative breast cancer can safely receive less intensive chemotherapy after surgery. The goal is to reduce side effects while still preventing the cancer from coming back.
Beijing, Beijing MunicipalityAges 18–75 - NCT04959474Recruiting
Pre-surgery radiation study with or without calorie restriction
This trial looks at whether a planned calorie-reduction diet before surgery can change how early breast cancer responds to a short course of radiation. It may help people understand if diet could improve outcomes alongside standard pre-surgery treatment.
Philadelphia, PennsylvaniaAges 40 years+ - NCT04965766RecruitingPhase 2
Study drug for HER2-negative, advanced breast cancer after prior treatment
This Phase 2 trial tests patritumab deruxtecan (U3-1402) in people with HER2-negative, hormone-receptor positive (HR+) breast cancer that cannot be removed by surgery or has spread. It’s for cancers that have progressed despite endocrine therapy plus a CDK4/6 inhibitor, aiming to shrink tumors and control the disease.
DijonAges 18 years+ - NCT05013255RecruitingPhase 2
Pioglitazone to treat fatigue in hormone-positive breast cancer
This Phase 2 study tests whether pioglitazone can reduce fatigue in people with certain types of breast cancer. You may be eligible if your cancer is estrogen- and progesterone-positive (ER+/PR+) and you plan surgery soon.
Morgantown, West VirginiaAges 18 years+ - NCT05044689Recruiting
Study to find risk factors for breast and colon cancer
This study is trying to understand what factors might raise the risk of breast cancer and colon (large bowel) cancer. You may be enrolled either if you have a confirmed cancer diagnosis (cases) or if you do not have cancer (controls).
Ile-Ife, Osun StateAges Any age - NCT05058183Recruiting
Testing shorter chemotherapy for early HER2 or triple‑negative breast cancer
This study looks at whether some people with stage 1 HER2-positive or “triple-negative” breast cancer may safely need less (de-escalated) chemotherapy after surgery. The goal is to keep the cancer risk low while reducing treatment intensity, using special blood testing over time.
LondonAges 18 years+ - NCT05059379RecruitingPhase 3
Different radiation fields after breast cancer surgery
This trial compares two ways of giving radiation to lymph node areas near the collarbone after surgery for invasive breast cancer. It aims to see which radiation approach works better and is safer for preventing cancer returning in these lymph nodes.
Shanghai, Shanghai MunicipalityAges 18–75 - NCT05072314RecruitingPhase 3
Lidocaine drip after breast surgery to improve long-term pain
This Phase 3 study tests whether a long-running lidocaine (a numbing medicine) drip given around the time of breast surgery can improve long-term post-surgery pain and recovery. It may help people who have pain after mastectomy or breast-conserving surgery.
Kingswood, New South WalesAges 18 years+ - NCT05095207RecruitingPhase 1/Phase 2
Abemaciclib and bicalutamide for HER2-negative metastatic breast cancer
This Phase 1/2 trial tests whether combining abemaciclib with bicalutamide can slow or shrink HER2-negative, androgen receptor–positive (AR-positive) metastatic breast cancer. It mainly looks at safety and side effects, and also whether the combination can help patients with this type of breast cancer.
New York, New YorkAges 18–90 - NCT05115474RecruitingPhase 2
Screening brain MRI study for stage IV breast cancer
This trial checks whether taking screening brain MRI scans in people with stage IV breast cancer helps find brain involvement earlier. It may help guide treatment decisions for those who would otherwise only get brain imaging after symptoms start.
Clearwater, FloridaAges 18 years+ - NCT05142033Recruiting
Cancer or precancer testing using DNA sequencing results
This trial helps doctors study and analyze cancer- or precancer-related DNA information. If you’re 18 or older and can consent, your results may help researchers understand the biology of your condition and guide future care.
Marshall, MinnesotaAges 18 years+ - NCT05159193RecruitingPhase 3
Pre-surgery chemotherapy and antibodies for HER2 breast cancer
This phase 3 trial compares two pre-surgery treatment plans for people with HER2-positive invasive breast cancer that has spread to nearby lymph nodes. It aims to see which plan works better to shrink the tumor before surgery and improve outcomes.
Guandong, GuangdongAges 18–70 - NCT05187338RecruitingPhase 1/Phase 2
Study drugs that target immune checkpoints for solid tumors
This early-phase study tests a combination of three immune “checkpoint” medicines in people with advanced solid cancers. It aims to see how well they work and what side effects occur, including when given through a specific liver-focused treatment in eligible patients.
Guangzhou, GuangdongAges 18–70 - NCT05216432RecruitingPhase 1
RLY-2608 for PIK3CA-mutant advanced solid tumors and breast cancer
This early study (Phase 1) tests RLY-2608, a targeted cancer drug for tumors with a PIK3CA mutation. It studies the drug alone and combined with hormone therapy (and sometimes CDK4/6 or CDK4 medicines) to see safety, dose, and whether it can shrink tumors.
Tucson, ArizonaAges 18 years+ - NCT05288777RecruitingPhase 2/Phase 3
Testing follow-up chemo and radiation for high-risk breast cancer
This trial studies a standard follow-up treatment plan that combines chemotherapy and radiation after surgery, and it looks for blood/tissue “biomarkers” that predict who benefits most. If you have high-risk breast cancer that didn’t fully disappear after initial (neoadjuvant) chemo, you may be eligible to help guide better future treatment choices.
Charlottesville, VirginiaAges 18 years+ - NCT05304962RecruitingPhase 1
Test drug RGT-419B for advanced ER+ HER2- breast cancer
This Phase 1 study tests a new drug (RGT-419B), given alone or with hormone (endocrine) therapy, in people with advanced ER-positive, HER2-negative breast cancer that has progressed after standard treatments. It looks mainly at safety and early signs of how well the treatment may work.
La Jolla, CaliforniaAges 18 years+ - NCT05327608Recruiting
Time-restricted eating during breast cancer chemotherapy
This study tests whether a daily time-restricted eating plan during neoadjuvant chemotherapy (treatment before surgery) can improve outcomes for people with certain types of breast cancer. Participants follow the eating plan for 16 weeks while also receiving standard chemotherapy.
Philadelphia, PennsylvaniaAges 18 years+ - 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+ - NCT05362760RecruitingPhase 4
Abemaciclib plus hormone therapy, with digital side-effect tracking
This trial tests whether adding abemaciclib to standard hormone (endocrine) therapy can improve outcomes for certain types of advanced breast cancer. It also uses a phone app to help you and the team track side effects so problems can be caught early.
AalenAges 18 years+ - NCT05369546Recruiting
Imaging study for suspicious breast findings
This study looks at how detailed breast imaging can help diagnose breast cancer when a mammogram is suspicious. If your mammogram result was “highly suspicious” and you have not had a biopsy yet, the trial may be able to use your images to improve future diagnosis.
Tampa, FloridaAges 20–85 - NCT05372640RecruitingPhase 1
Drug combo trial for rare cancers with shared NUT features
This Phase 1 trial tests the safety and early signs of effectiveness of combining two anti-cancer drugs (ZEN003694 and abemaciclib) in teens and adults with metastatic or unresectable NUT carcinoma, breast cancer, and other solid tumors. It may help by finding a safer dose and whether the drug combination can shrink or control tumors that do not respond to standard treatments.
Los Angeles, CaliforniaAges 12 years+ - NCT05414357Recruiting
Sleep problems study in breast cancer and effects on thinking
This study looks at how sleep problems affect thinking and daily quality of life in people treated for early breast cancer. It may help researchers understand which sleep issues to target to improve well-being during or after treatment.
CaenAges 45–65 - NCT05422794RecruitingPhase 1
Adding a new drug plus pembrolizumab to standard chemo for TNBC
This trial studies whether adding a new anti-cancer drug (ZEN-3694) and the immunotherapy drug pembrolizumab to standard chemotherapy (nab-paclitaxel) can work better for advanced triple-negative breast cancer. It’s testing safety first (Phase 1) and, for some patients, how well the treatment controls the cancer.
Boston, MassachusettsAges 18 years+ - NCT05455619RecruitingPhase 1/Phase 2
Targeted drugs for PI3K-altered, HR+/HER2- breast cancer
This Phase 1/2 trial tests how well a combination of targeted medicines works for advanced or returning HR+/HER2- breast cancer that has a PI3K pathway change (such as PIK3CA, PTEN, or AKT1). It may help by blocking growth signals in the cancer and is especially for people whose cancer has progressed after hormone therapy and a CDK4/6 inhibitor.
Loma Linda, CaliforniaAges 18 years+
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Common questions
- Are there clinical trials for breast cancer diagnosis?
- Yes. Clin2 currently lists 889 recruiting breast cancer diagnosis 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 diagnosis 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 diagnosis 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.