Her 2 Protein Overexpression

The purpose of this study is to evaluate the efficacy and safety of zanidatamab for the treatment of participants with previously treated solid tumors that have Human Epidermal Growth Factor Receptor 2 (HER2) Immunohistochemistry (IHC) 3+ overexpression.

The purpose of this study is to learn whether it is safe to give HER2-CAR T cells in combination with an immune checkpoint inhibitor drug (pembrolizumab or nivolumab), to learn what the side effects are, and to see whether this therapy might help patients with sarcoma. Another goal of this study is to study the bacteria found in the stool of patients with sarcoma who are being treated with HER2 CAR T cells and immune checkpoint inhibitor drugs to see if the types of bacteria influence how well the treatment works. The investigators have found from previous research that they can put a new gene into T cells that will make them recognize cancer cells and kill them. They now want to see if they can put a new gene in these cells that will let the T cells recognize and kill sarcoma cells. The new gene that the investigators will put in makes an antibody specific for HER2 (Human Epidermal Growth Factor Receptor 2) that binds to sarcoma cells. In addition, it contains CD28, which stimulated T cells and make them last longer. After this new gene is put into the T cell, the T cell becomes known as a chimeric antigen receptor T cell or CAR T cell. In another clinical study using these CAR T cells targeting HER2 as well as other studies using CAR T cells, investigators found that giving chemotherapy before the T cell infusion can improve the effect the T cells can have. Giving chemotherapy before a T cell infusion is called lymphodepletion since the chemotherapy is specifically chosen to decrease the number of lymphocytes in the body. Decreasing the number of the patient's lymphocytes first should allow the infused T cells to expand in the body, and potentially kill cancer cells more effectively. The chemotherapy used for lymphodepletion is a combination of cyclophosphamide and fludarabine. After the patient receives the lymphodepletion chemotherapy and CAR T cells during treatment on the study, they will receive an antibody drug called an immune checkpoint inhibitor, pembrolizumab or nivolumab. Immune checkpoint inhibitors are drugs that remove the brakes on the immune system to allow it to act against cancer.

I-SPY Phase I/Ib (I-SPY-P1) is an open-label, multisite platform study designed to evaluate single agents or combinations in a metastatic treatment setting that may be relevant for breast cancer patients with the overall goal of moving promising drug regimens into the I-SPY 2 SMART Design Trial (NCT01042379) and/or other oncology-based trials in a timely manner.

This is a prospective, open, single-center clinical study of the anti-HER2(Human epidermal growth factor receptor-2) ADC(antibody-drug conjugate) drug Disitamab Vedotin in combination with BCG(bacillus Calmette-Guerin) therapy in very high-risk NMIBC(Non-muscle invasive bladder cancer) patients with HER2 expression (IHC 1+/2+/3+), which is being conducted in accordance with the Good Clinical Practice for Pharmaceutical Trials (GCP). Approximately 20 subjects will be enrolled in this study to evaluate the efficacy and safety of Disitamab Vedotin (2.0 mg/kg, administered intravenously every three weeks) in combination with BCG therapy.