T Cells Expressing a Fully-human AntiCD19 Chimeric Antigen Receptor for Treating B-cell Malignancies

Background: The immune system fights infection and can affect cancer cells. T cells are white blood cells that are a major part of the immune system. T cells can destroy tumors. Researchers want to try to manipulate the immune system to better recognize and kill tumor cells. Objective: To test the safety of giving T cells expressing a novel fully-human anti-cluster of differentiation 19 (CD19) chimeric antigen receptor (CAR) to people with advanced B-cell cancer. Eligibility: People ages 18-73 with a B-cell cancer that has not been controlled by other therapies. Design: Participants will be screened with: Physical exam Blood and urine tests Heart tests Bone marrow sample taken Scans in machines that take pictures Participants will have apheresis. Blood is removed through a needle in an arm. T cells are removed. The rest of the blood is returned through a needle in the other arm. The cells will be changed in a laboratory. Participants will get 2 chemotherapy drugs over 3 days. Two days later, participants will check into the hospital. They will get an intravenous (IV) catheter in an arm or chest vein. They will get the T cells through the IV in 1 infusion. After this, participants will stay in the hospital for at least 9 days and stay nearby for 2 weeks. Then they will have blood tests and see a doctor. Participants will have visits 6 visits for 1 year after the infusion. Some may have more follow-up visits. Participants may samples taken of spinal fluid, bone marrow, and tumors. ...