**Study of BMS-986393 for Multiple Myeloma Patients** This study tests a new treatment called **BMS-986393** for people with a type of blood cancer called **multiple myeloma**. Multiple myeloma is a cancer of plasma cells, which are found in the bone marrow. The study is for patients whose cancer has come back or hasn't responded to other treatments. **BMS-986393** is a special therapy that uses **CAR T cells**. These are cells taken from the patient, changed in a lab to fight cancer, and then put back into the patient. To join, you must have tried at least four kinds of treatments before and have cancer that has worsened. You shouldn't have any active infections, and you must be healthy enough for the study. **Key Points:** - **Length of Study:** The study involves multiple visits over a period of time to monitor effectiveness and safety. - **Treatment:** Involves receiving CAR T cell therapy, which is a type of personalized cancer treatment. - **Risks:** As with any medical study, there are potential risks such as side effects from the treatment. If you meet the criteria and are interested, this study could offer a new treatment option.