Active clinical trials for "Epstein-Barr Virus Infections"

The study aims to describe the avidity of somatostatin receptors in locally advanced, metastatic and locally recurrent nasopharyngeal cancer (NPC) and to determine the proportion of NPC patients with high somatostatin receptor density that may benefit from future somatostatin targeted therapeutic trial plans. The investigators also aim to determine the presence of somatostatin receptors in other EBV related cancers.

In this study, investigators are trying to see if LMP specific cytotoxic T lymphocytes (CTLs) will prevent or treat disease called Epstein Barr Virus (EBV) Disorder including either Hodgkin Lymphoma or non-Hodgkin Lymphoma or Lymphoepithelioma or severe chronic active EBV infection syndrome (SCAEBV) or Leiomyosarcoma which has come back or has not gone away after treatment, including the best treatment. Investigators are using special immune system cells called third party LMP specific cytotoxic T lymphocytes (CTLs), a new experimental therapy. Some patients with Lymphoma or SCAEBV or Leiomyosarcoma show evidence of infection with the virus that causes infectious mononucleosis Epstein Barr virus (EBV) before or at the time of their diagnosis. EBV is found in the cancer cells of up to half the patients with Hodgkin's and non-Hodgkin Lymphoma, suggesting that it may play a role in causing Lymphoma. The cancer cells (in lymphoma) and some B cells (in SCAEBV) infected by EBV are able to hide from the body's immune system and escape destruction. The investigators want to see if special white blood cells, called T cells, that have been trained to kill EBV infected cells can survive in patient's blood and affect the tumor or infection. Investigators used this sort of therapy to treat a different type of cancer that occurs after bone marrow or solid organ transplant called post transplant lymphoma. In this type of cancer the tumor cells have 9 proteins made by EBV on their surface. They grew T cells in the laboratory that recognized all 9 proteins and were able to successfully prevent and treat post transplant lymphoma. However in Hodgkin Lymphoma, the tumor cells and B cells only express 2 EBV proteins. In a previous study they made T cells that recognized all 9 proteins and gave them to patients with Hodgkin Lymphoma. Some patients had a partial response to this therapy but no patients had a complete response. They think one reason may be that many of the T cells reacted with proteins that were not on the tumor cells. In this present study the investigators are trying to find out if the investigators can improve this treatment by growing T cells that recognize proteins expressed on EBV infected Lymphoma cells and B cells called LMP-1 and LMP2. These special T cells are called third party LMP 1/2 -specific cytotoxic T-lymphocytes (CTLs). These LMP-specific cytotoxic T cells are an investigational product not approved by the Food and Drug Administration.

This research study is being performed to find out if Truvada (tenofovir/emtricitabine), an antiviral drug with activity against the Epstein Barr virus (EBV), can reduce EBV levels in saliva and blood in people with multiple sclerosis (MS). A second goal is to find out if Truvada (tenofovir/ emtricitabine) is safe and tolerable in people with MS.

The efficacy and safety of L-DEP (PEG-aspargase, liposomal doxorubicin, etoposide, and methylprednisolone) regimen combined with PD-1 Antibody an induction therapy for Epstein-Barr virus (EBV)-positive lymphoma-associated hemophagocytic lymphohistiocytosis.

This is a Phase 2 study to evaluate posoleucel (ALVR105, formerly Viralym-M); an allogeneic, off-the-shelf multi-virus specific T cell therapy that targets six viral pathogens: BK virus, cytomegalovirus, adenovirus, Epstein-Barr virus, human herpesvirus 6 and JC virus.

This study is a prospective, single arm, multi-center phase II clinical trial designed to evaluate the efficacy and safety of perioperative SOX combined with toripalimab in participants with Epstein-Barr Virus-associated locally advanced gastric or esophagogastric junction adenocarcinoma.

Patients with medical conditions requiring allogeneic hematopoietic cell transplantation (allo-HCT) are at risk of developing a condition called graft versus host disease (GvHD) which carries a high morbidity and mortality. This is a phase I/II study that will test the safety and efficacy of hematopoietic cell transplantation (HCT) with ex-vivo T cell receptor Alpha/Beta+ and CD19 depletion to treat patients' underlying condition. This process is expected to substantially decrease the risk of GvHD thus allowing for the elimination of immunosuppressive therapy post-transplant. The study will use blood stem/progenitor cells collected from the peripheral blood of parent or other half-matched (haploidentical) family member donor. The procedure will be performed using CliniMACS® TCRα/β-Biotin System which is considered investigational.

To evaluate the safety and tolerability of partial HLA-matched VSTs against both CMV and EBV viruses in recipients of allogeneic hematopoietic stem cells with refractory viral infections (CMV and/or EBV). Preliminary evaluation of the efficacy of partial HLA-matched VSTs against both CMV and EBV viruses in recipients of allogeneic hematopoietic stem cells with refractory viral infections (CMV and/or EBV); To monitor the duration and expansion of multi-virus VSTs cells after infusion.

The clinical course of RRMS patients is variable. Among RIS-Consortium international cohorts, one third of RIS patients progressed to MS at 5 years and 52.2% at 10 years. Biomarkers predictive of MS conversion are key elements to organize personalized medical care, for both follow-up and treatment strategies. EBV seems to be an interesting candidate regarding its involvement MS pathophysiology. It can be easily assess in blood sample in contrast to others prognostic biomarkers validated in RIS : oligoclonal bands and NfL levels in cerebrospinal fluid and serum. In RIS, treatment targeting EBV could significantly modify the course of the disease. The investigators aim to make the fisrt description of the EBV epidemiology (immunoglobulin (Ig)M and IgG anti-viral capsid antigen (VCA), IgG anti Epstein-Barr nuclear antigen (EBNA)) among RIS patients and to investigate a correlation between the different antibodies' titers (IgM VCA, IgG VCA, IgG EBNA) and the course of the disease (clinical conversion or evidence of disease activity (EDA)).

This prospective case-control study aims to evaluate the immune function and find PD-1 antibody efficacy predictors on Chronic Active Epstein-Barr Virus Infection and Epstein-Barr virus-associated hemophagocytic lymphohistiocytosis by detecting lymphocyte subsets proportions in peripheral blood mononuclear cells and the positive proportion of PD-1, PD-L1 and other indicators in each lymphocyte subsets in healthy people and patients using flow cytometry before and after the initial PD-1 therapy.