Summary: This clinical trial examines an investigational scan (64Cu-DOTA-trastuzumab positron emission tomography [PET]/magnetic resonance imaging [MRI]) in imaging patients with HER2+ breast cancer that has spread to the brain (brain metastasis). Diagnostic procedures, such as 64Cu-DOTA-trastuzumab PET/MRI, may help find HER2+ breast cancer that has spread to the brain and determine whether cancer in the ...

Summary: This phase IIa trial studies how well dendritic cell vaccines against Her2/Her3 and pembrolizumab work for the treatment of triple negative breast cancer or HER2+ breast cancer that has spread to the brain (brain metastasis). Dendritic cell vaccines work by boosting the immune system (a system in the body that protect against infection) to recognize and destroy the cancer cells. . Pembrolizumab is...

Summary: This trial studies how well the drug tucatinib works when given with trastuzumab deruxtecan (T-DXd). It will also look at what side effects happen when these drugs are given together. A side effect is anything a drug does besides treating cancer. Participants in this trial have HER2-positive (HER2+) breast cancer that has either spread to other parts of the body (metastatic) or cannot be removed c...

Summary: This study is being done to see if tucatinib works better than placebo when given with other drugs to treat participants with HER2-positive breast cancer. A placebo is a pill that looks the same as tucatinib but has no medicine in it. This study will also test what side effects happen when participants take this combination of drugs. A side effect is anything a drug does to the body besides treati...

Summary: The purpose of this study is to evaluate the safety and efficacy of the three-drug combination of tucatinib, trastuzumab, and eribulin in patients with de novo and recurrent unresectable metastatic HER-2/neu positive breast cancer as assessed by ORR, PFS and OS after prior treatment with a taxane, trastuzumab, and T-DM1.

Summary: This study is being done to see if tucatinib with ado-trastuzumab emtansine (T-DM1) works better than T-DM1 alone to help patients who have a specific type of breast cancer called HER2 positive breast carcinoma. The breast cancer in this study is either metastatic (spread into other parts of the body) or cannot be removed completely with surgery. Patients in this study will be randomly assigned to...

Summary: The purpose of this study is to learn more about how to treat patients with HER-2/neu positive invasive breast cancer (IBC). HER-2/neu is a type of protein that is known to be over-expressed in aggressive breast cancer. The study drug for this trial is DC1 study vaccine which is a HER2-sensitized dendritic cell (DC) study vaccine. This study vaccine is made from the participant's blood cells colle...

Summary: This phase Ib/II trial studies the side effects and best dose of copanlisib when given together with trastuzumab and pertuzumab and to see how well they work after induction treatment in treating patients with HER2 positive stage IV breast cancer with PIK3CA or PTEN mutation. Copanlisib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Trastuzumab is a form...

Summary: Adjuvant radiotherapy is the standard treatment for early breast cancer after breast conserving surgery. Molecular subtypes was significantly associated with the risk of local recurrence of breast cancer. Nguyen et al found that the overall 5-year cumulative incidence of local recurrence was 0.8% for luminal A, 1.5% for luminal B, 8.4% for HER2 positive, and 7.1% for triple negative breast cancer ...

Summary: First preclinical data suggest that pegfilgrastim could constitute a potent adjuvant for immunotherapy with mAb possessing ADCC/ADCP properties as trastuzumab. Combined treatment of pegfilgrastim and trastuzumab should translate into an increased rate of pathological clinical response. Therefore the investigators' proposal is to evaluate the clinical and biological impact of pegfilgrastim in combi...

Summary: This phase II trial studies how well rifaximin works for the treatment of gastrointestinal toxicities related to pertuzumab-based therapy in patients with stage I-III HER2 positive breast cancer. Rifaximin may reduce the incidence and severity of pertuzumab induced gastrointestinal toxicities without interrupting or delaying the chemotherapy schedule.

Summary: This is a Phase 2, single-site, single-arm open-label trial of zanidatamab in patients with early stage, low risk HER2+ BC. The primary objective is to determine the efficacy of zanidatamab for patients with early stage HER2/neu positive (HER2+) breast cancer (BC) as determined by pathologic complete response (pCR) .