Pomalidomide

This phase I trial tests the safety and effectiveness of pomalidomide after CD19 chimeric antigen receptor T-cell (CD19CART) therapy for the treatment of patients with CD19+ B-cell leukemias or lymphomas that have come back after a period of improvement (relapsed) or do not respond to treatment (refractory). Chimeric antigen receptor (CAR) T-cell therapy is a type of treatment in which a patient's T-cells (a type of immune system cell) are changed in the laboratory so they will attack cancer cells and are then re-infused into the patient. Following CAR T-cell infusion, CAR T-cells must expand and persist in the blood stream in order to most effectively treat leukemia/lymphoma. Pomalidomide stops the growth of blood vessels, stimulates the immune system, and may kill cancer cells. Research has shown that drugs like pomalidomide can modify the immune system and increase the number or improve the function of CAR T-cells in the blood. Pomalidomide may enhance the treatment effects of CAR T-cell therapy in patients who have received CD19CART therapy for relapsed or refractory CD19+ B-cell leukemia or lymphoma.

Background: Less toxic and more effective treatments are needed for cancers caused by viruses. These cancers include Hodgkin and non-Hodgkin lymphoma, hepatocellular carcinoma, head and neck cancer, nasopharyngeal carcinoma, gastric cancer, anal cancer, cervical cancer, vaginal cancer, vulvar cancer, penile cancer, Merkel cell carcinoma, Kaposi sarcoma, and leiomyosarcoma. Researchers want to see if a combination of drugs can help. Objective: To find a safe dose of pomalidomide plus nivolumab in people with cancers caused by viruses. Eligibility: Adults ages 18 or older who have cancers caused by Epstein Barr virus (EBV), human herpes virus 8/Kaposi sarcoma herpesvirus (HHV8/KSHV), human papilloma virus (HPV), hepatitis B or C virus (HBV/HCV), and Merkel cell polyomavirus (MCPyV) that have not responded to previous treatments or have relapsed, or in adults who do not want to have surgery because of disfigurement or other risks. Adults who have HIV with any CD4 T cell count are eligible. Design: Participants will be screened with blood and urine tests, scans, and heart tests. They will have a physical exam. Their ability to perform normal daily activities will be assessed. They may have a tumor biopsy. Treatment will be given in 28-day cycles. Participants will take pomalidomide as a tablet by mouth for 21 days of each cycle, for up to 24 cycles. They will get nivolumab by intravenous infusion once each cycle. They will take an aspirin each day until 30 days after their last dose of the study drugs. Participants will keep a pill diary. They will bring it to their study visit at the end of each cycle. At these visits, some screening tests will be repeated. Participants with Kaposi sarcoma will have pictures taken of their lesions. Participants will give blood and saliva samples for research. They may have optional anal and/or cervical swabs. They may have optional biopsies. Participants will have a follow-up visit 30 days after they stop taking the study drugs, then every month for 100 days. Some screening tests will be repeated. Then they may by contacted by phone every 3 months for 9 months, and then every 6 months thereafter....

Background: Non-Hodgkin lymphoma (NHL) is the most common cancer among people living with HIV in the United States. People with HIV are up to 17 times more likely to get NHL than people who do not have HIV. The disease may also be different in these two groups. More study is needed for treating people with both HIV and NHL. Objective: To test a study drug (pomalidomide) in combination with chemotherapy with or without another drug (rituximab) in people with HIV-associated NHL. Eligibility: Adults aged 18 years or older diagnosed with HIV-associated B-cell NHL with high-risk features. Design: Individuals will undergo screening. They will have a physical exam. They will have blood and urine tests and tests of heart function. They may have imaging scans. Researchers will review tissue samples of individual s tumors. In some cases, a new biopsy may be needed. Individuals will receive up to 6 cycles of treatment. The first cycle is 26 days: Individuals will take pomalidomide by mouth for 10 days. After 5 days they will start receiving chemotherapy drugs through a tube attached to a needle placed in a vein (IV). Some participants will receive rituximab on day 5. All individuals will receive a second set of IV drugs that will last for 4 days (96 hours). They will receive another IV drug after the previous treatment is complete. The remaining cycles are each 21 days. Individuals will take pomalidomide by mouth for the first 10 days. Other chemotherapy treatments will also be repeated starting on day 1 of each cycle. Screening tests will be repeated at study visits. Follow-up visits will continue for 4 years....