This study is for patients that have been diagnosed with Epstein-Barr Virus associated Post-Transplant Lymphoproliferative Disorder (EBV-PTLD). The investigational drug in this study is tabelecleucel. Tabelecleucel is a product containing special immune allogeneic cells, called EBV-Cytotoxic T Lymphocytes (EBV-CTLs), that are made in the laboratory starting with cells from a healthy person who is immune to EBV. The purpose of this study is to test how well tabelecleucel works to treat EBV-PTLD following SOT in patients who have not responded to rituximab or rituximab plus chemotherapy treatment and to see what side effects happen. Your participation will help us to understand more about tabelecleucel. In the first 12-month period, participants will be asked to come to the clinic for an estimated 11 to 19 study visits and a minimum of 2 scans, depending on the number of cycles of treatment they are given. After treatment is done, participants will enter into the follow-up phase, and will continue to come into the clinic for scheduled check-ups for up to 24 months after the first dose of tabelecleucel was given. Participant information on the status of their disease and any new treatment will be collected for up to an additional 3 years. Participants can expect to be in this study for up to five years total.

This study is for children and adults that have been diagnosed with a disease that is associated with Epstein-Barr Virus (EBV) infection.The investigational treatment in this study is called tabelecleucel (also known as ATA129), this treatment is given in the vein. Participants will receive tabelecleucel on Day 1, Day 8 and Day 15 of every 35-day (5-week) period, the number of cycles depends on the response to treatment. The purpose of this study is to assess the safety of tabelecleucel and to assess the effects of tabelecleucel on EBV disease. Participants can expect to be in this study for about 2 years for an estimated 17-20 study visits.

The primary purpose of this registry is to evaluate the feasibility and clinical validation of LiverCare in liver transplant recipients, as part of post-transplant surveillance. LiverCare is an investigational panel test that includes 6 components: 1. AlloSure Liver 2. AlloMap Liver 3. AlloHeme Liver 4. iBox Liver 5. HistoMap Liver 6. AlloID. AlloSure Liver is a research test used to measure donor-derived cell free DNA in Liver transplant recipients. AlloMap Liver is a research gene expression profile test using peripheral blood to establish immune activity and is currently undergoing clinical evaluation and development. iBox Liver is an analytic platform that predicts organ outcomes after transplant using a software algorithm based on information from your medical records and is currently undergoing clinical evaluation and development. AlloHeme Liver is a diagnostic test to measure donor and recipient DNA in the blood. HistoMap Liver is a tissue-based gene expression test using tissue collected from standard of care biopsies to establish immune profiles within the organ and is currently undergoing clinical evaluation and development. AlloID is a blood test that will quantify the presence of more than 100 pathogens including standard post-transplant infectious disease screening such as Cytomegalovirus (CMV), Epstein-Barr virus (EBV), adenovirus, Human Herpesvirus 6 (HHV-6) and viral hepatitis.

The primary purpose of this registry is to evaluate the feasibility and clinical validation of LiverCare in liver transplant recipients, as part of post-transplant surveillance. LiverCare is an investigational panel test that includes 6 components: 1. AlloSure Liver 2. AlloMap Liver 3. AlloHeme Liver 4. iBox Liver 5. HistoMap Liver 6. AlloID. AlloSure Liver is a research test used to measure donor-derived cell free DNA in Liver transplant recipients. AlloMap Liver is a research gene expression profile test using peripheral blood to establish immune activity and is currently undergoing clinical evaluation and development. iBox Liver is an analytic platform that predicts organ outcomes after transplant using a software algorithm based on information from your medical records and is currently undergoing clinical evaluation and development. AlloHeme Liver is a diagnostic test to measure donor and recipient DNA in the blood. HistoMap Liver is a tissue-based gene expression test using tissue collected from standard of care biopsies to establish immune profiles within the organ and is currently undergoing clinical evaluation and development. AlloID is a blood test that will quantify the presence of more than 100 pathogens including standard post-transplant infectious disease screening such as Cytomegalovirus (CMV), Epstein-Barr virus (EBV), adenovirus, Human Herpesvirus 6 (HHV-6) and viral hepatitis.

The primary purpose of this registry is to evaluate the feasibility and clinical validation of LiverCare in liver transplant recipients, as part of post-transplant surveillance. LiverCare is an investigational panel test that includes 6 components: 1. AlloSure Liver 2. AlloMap Liver 3. AlloHeme Liver 4. iBox Liver 5. HistoMap Liver 6. AlloID. AlloSure Liver is a research test used to measure donor-derived cell free DNA in Liver transplant recipients. AlloMap Liver is a research gene expression profile test using peripheral blood to establish immune activity and is currently undergoing clinical evaluation and development. iBox Liver is an analytic platform that predicts organ outcomes after transplant using a software algorithm based on information from your medical records and is currently undergoing clinical evaluation and development. AlloHeme Liver is a diagnostic test to measure donor and recipient DNA in the blood. HistoMap Liver is a tissue-based gene expression test using tissue collected from standard of care biopsies to establish immune profiles within the organ and is currently undergoing clinical evaluation and development. AlloID is a blood test that will quantify the presence of more than 100 pathogens including standard post-transplant infectious disease screening such as Cytomegalovirus (CMV), Epstein-Barr virus (EBV), adenovirus, Human Herpesvirus 6 (HHV-6) and viral hepatitis.

The primary purpose of this registry is to evaluate the feasibility and clinical validation of LiverCare in liver transplant recipients, as part of post-transplant surveillance. LiverCare is an investigational panel test that includes 6 components: 1. AlloSure Liver 2. AlloMap Liver 3. AlloHeme Liver 4. iBox Liver 5. HistoMap Liver 6. AlloID. AlloSure Liver is a research test used to measure donor-derived cell free DNA in Liver transplant recipients. AlloMap Liver is a research gene expression profile test using peripheral blood to establish immune activity and is currently undergoing clinical evaluation and development. iBox Liver is an analytic platform that predicts organ outcomes after transplant using a software algorithm based on information from your medical records and is currently undergoing clinical evaluation and development. AlloHeme Liver is a diagnostic test to measure donor and recipient DNA in the blood. HistoMap Liver is a tissue-based gene expression test using tissue collected from standard of care biopsies to establish immune profiles within the organ and is currently undergoing clinical evaluation and development. AlloID is a blood test that will quantify the presence of more than 100 pathogens including standard post-transplant infectious disease screening such as Cytomegalovirus (CMV), Epstein-Barr virus (EBV), adenovirus, Human Herpesvirus 6 (HHV-6) and viral hepatitis.

The primary purpose of this registry is to evaluate the feasibility and clinical validation of LiverCare in liver transplant recipients, as part of post-transplant surveillance. LiverCare is an investigational panel test that includes 6 components: 1. AlloSure Liver 2. AlloMap Liver 3. AlloHeme Liver 4. iBox Liver 5. HistoMap Liver 6. AlloID. AlloSure Liver is a research test used to measure donor-derived cell free DNA in Liver transplant recipients. AlloMap Liver is a research gene expression profile test using peripheral blood to establish immune activity and is currently undergoing clinical evaluation and development. iBox Liver is an analytic platform that predicts organ outcomes after transplant using a software algorithm based on information from your medical records and is currently undergoing clinical evaluation and development. AlloHeme Liver is a diagnostic test to measure donor and recipient DNA in the blood. HistoMap Liver is a tissue-based gene expression test using tissue collected from standard of care biopsies to establish immune profiles within the organ and is currently undergoing clinical evaluation and development. AlloID is a blood test that will quantify the presence of more than 100 pathogens including standard post-transplant infectious disease screening such as Cytomegalovirus (CMV), Epstein-Barr virus (EBV), adenovirus, Human Herpesvirus 6 (HHV-6) and viral hepatitis.

This study is for patients who have been diagnosed with relapsed (the disease has gotten worse after a period of improvement) or refractory (the disease does not respond to treatment) Epstein-Barr Virus-Positive (EBV+) lymphomas.

The investigational drug in this study is Nanatinostat. Investigational means it is not approved by the United States' Food and Drug Administration (US FDA). Nanatinostat is a tablet that will be taken by mouth once a day.

The purpose of this research study is to determine the effectiveness and safety of the combination therapy, nanatinostat and valganciclovir, on treating lymphoma cancers. Valganciclovir is an approved anti-viral drug (a drug that fights against virus in your body), which has been used in the prevention and treatment of infection caused by a virus called cytomegalovirus (CMV), which is similar to Epstein-Barr virus (EBV). The safety and effectiveness of nanatinostat on its own will also be reviewed in a small subset of patients.

Participants can expect to receive treatment until disease progression, unacceptable toxicity/ side effects, or participants withdraw. Participants can expect to be in follow up for up to 5 years.