HER2 + Breast Cancer clinical trials

Personalized Neoantigen Peptide-Based Vaccine in Combination With Pembrolizumab for Treatment of Advanced Solid Tumors

A Study of Romosozumab in People With Breast Cancer and Osteoporosis

Adding immunotherapy to chemo for stage II-III breast cancer

This trial tests whether adding the immunotherapy drug durvalumab to standard chemotherapy works better than chemo alone for people with hormone receptor positive, HER2 negative breast cancer that is stage II or III and has a high-risk genetic score (MammaPrint High Risk 2).

Elacestrant and everolimus for ESR1-mutant advanced breast cancer

This trial tests a new combination of two oral targeted therapy pills (elacestrant and everolimus) for people with a specific type of advanced breast cancer. It is for those whose cancer has an ESR1 mutation and has stopped responding to CDK4/6 inhibitors and hormone therapy.

Imlunestrant and abemaciclib for early ER+ breast cancer

This trial tests whether adding two targeted drugs, imlunestrant and abemaciclib, to your usual hormone therapy can lower the chance of your breast cancer coming back. It is for people with early-stage ER+ breast cancer who have no signs of cancer on scans but have tiny amounts of tumor DNA in their blood (called ctDNA).

Hormone therapy with or without chemo for early breast cancer

This trial tests whether skipping chemotherapy and using only hormone therapy with a drug called ribociclib works as well as chemotherapy followed by hormone therapy with ribociclib for certain early breast cancers that have a low risk of coming back.

Testing a new drug for breast cancer and other solid tumors

This trial tests a new oral drug (BGB-43395) alone or with other treatments for people with advanced breast cancer or other solid tumors that depend on CDK4. It aims to find safe doses and see if the drug helps shrink tumors or slow growth.

Study compares two HER2 breast cancer treatments after surgery

This Phase 2 study tests two different medicines given after breast surgery to reduce the risk of cancer coming back. It is only for people with early-stage HER2-positive breast cancer with limited or no lymph node spread.

Testing T-DXd or chemo for HER2-low or HR-positive breast cancer

This study looks at treatment choices for adults with breast cancer that has spread and cannot be removed by surgery (unresectable metastatic disease). It focuses on people with HER2-low (and some HER2-ultralow) and/or hormone-receptor positive cancer, and compares how well treatments like T-DXd or standard chemotherapy work.

Neratinib before surgery for HER2-mutated invasive lobular breast cancer

This Phase 2 trial tests neratinib given before surgery to treat stage I–III invasive lobular breast cancer that has a specific HER2 mutation and is hormone-receptor positive. It may help shrink the tumor and improve control of cancer before and after surgery.

Low-dose Capecitabine for High-risk Early Breast Cancer

This study tests whether a low-dose chemotherapy pill called capecitabine can help prevent breast cancer from coming back in patients whose cancer shows signs of remaining disease (called MRD) despite standard treatment. The trial focuses on hormone-receptor-positive, HER2-negative breast cancers.

SKB264 alone or combined for advanced HER2- breast cancer

This study is a real-world treatment trial for people with advanced HER2-negative breast cancer (either triple-negative or HR+/HER2-). It tests a drug called SKB264, given alone or with other therapies, and aims to see how well it works in everyday clinical practice.

BEBT-209 Plus Chemotherapy for Triple-Negative Breast Cancer

This study tests a new drug called BEBT-209 combined with chemotherapy (carboplatin and gemcitabine) in women with advanced triple-negative breast cancer that has spread or cannot be surgically removed. The goal is to see if this combination can slow or stop cancer growth better than standard treatments.

Elacestrant vs standard hormone therapy for high-risk early breast cancer

This trial tests a new hormone therapy pill (elacestrant) against standard hormone therapy for people with a common type of early breast cancer (ER+, HER2-) that has a higher chance of returning. You may qualify if you've already been on hormone therapy for 2 to 5 years and want to see if a different pill works better.

Palazestrant and ribociclib for first-line advanced breast cancer

This trial tests a new drug (palazestrant) combined with ribociclib for people with a common type of advanced breast cancer that is estrogen receptor-positive and HER2-negative. You may qualify if you haven't had treatment for advanced disease and your cancer has either just been found or came back long after completing hormone therapy.

BL-M07D1 for HER2-positive or HER2-low breast cancer

This Phase 1 study tests BL-M07D1, a new investigational medicine, in people with HER2-positive or HER2-low breast cancer (and other solid tumors) that can’t be operated on or has spread. It aims to find a safe dose and learn how well the treatment may work based on HER2 levels in tumor tissue.

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.

Radiation and immunotherapy before surgery for HR+/HER2- breast cancer

This trial is testing a new treatment approach for patients with a certain type of breast cancer (HR+/HER2-). It combines radiation therapy with chemotherapy and an immunotherapy drug before the patient's main surgery, to see if it can shrink or eliminate the tumor more effectively.

Evorpacept with trastuzumab and chemo for HER2-positive breast cancer

This study tests an experimental drug called evorpacept when given with trastuzumab and chemotherapy for people with HER2-positive breast cancer that has spread. The goal is to see if this combination can shrink tumors or slow down the cancer.

Megestrol Acetate for Fatigue in HER2+ Breast Cancer

This study tests whether a medication called megestrol acetate can help reduce severe tiredness and fatigue in people with advanced breast cancer who are receiving a targeted therapy called T-DXd (trastuzumab deruxtecan). Fatigue is a common side effect that can really impact quality of life.

Adaptive capecitabine therapy for metastatic ER+ HER2− breast cancer

This trial tests whether adjusting the dose of the oral chemotherapy capecitabine over time can control metastatic breast cancer that is estrogen-receptor positive (ER+) and HER2−. It is designed for patients who are starting capecitabine or have just started it, and the study will monitor blood changes and tumor response closely.

Sequencing antibody-drug conjugates in ER+, HER2-low breast cancer

This trial tests different sequences of antibody-drug conjugates (a type of targeted chemotherapy) for people with ER-positive, HER2-low or ultra-low metastatic breast cancer that has stopped responding to hormone therapy and has progressed on Enhertu. You must have had 1–4 prior chemotherapies for metastatic disease.

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.

Real-world study of trastuzumab deruxtecan for HER2 breast cancer

This study looks at how people feel (patient-reported outcomes) and their real-world health data while they receive trastuzumab deruxtecan for advanced HER2-positive, HER2-low, or HER2-ultralow breast cancer. It helps researchers understand what outcomes happen outside of tightly controlled clinical trials.