51 Clinical Trials for Various Conditions
This is an open label, single-arm, multicenter phase 1b study of stable adult liver transplant recipients on a tacrolimus (TAC)-based immunosuppression (IS) regimen who will transition from TAC to Everolimus (EVR), receive five doses of EPO and concurrently initiate phased withdrawal from EVR. The primary objective is to test the safety of administering Everolimus (EVR) and epoetin alfa (EPO) to induce operational tolerance in stable adult liver transplant recipients
The purpose of this research study is to determine whether kidney transplant recipients who receive belimumab (Benlysta®), combined with the standard of care medications for kidney transplant recipients, is safe and effective in helping prevent new donor specific antibodies (DSA) after transplantation. The presence of DSA increases the risk that the kidney transplant recipient's body will reject the new kidney. The investigators are doing this research because it is estimated that greater than 50% of kidney transplant failures are attributed to antibodies produced in the body, that attack the transplanted organ as a foreign object. DSA produced in the body after a kidney transplant, is thought to occur in 20-50% of patients and is associated with a low likelihood that the organ recipient's body will accept the new kidney. A major unmet need in the kidney transplant area are safe and effective therapies to prevent DSA after transplantation.
This research study is to determine if donor blood stem cells given after living, related, HLA antigen (Ag) haplotype match or living, unrelated donor kidney transplantation. Minimal HLA antigen matching will include matching of 2 HLA antigens that can be either HLA A, B, and /or DR. This research will change the immune system such that immunosuppressive drugs can be completely withdrawn or reduced to minimal dose without kidney rejection.
The purpose of this study is to attempt to eliminate the necessity of immunosuppressive therapy for HLA-identical sibling Kidney Transplants, examine cellular chimerism of donor hematopoietic stem cell (DHSC) lineages for pairs to demonstrate immunologic unresponsiveness, and to investigate the safety and efficacy of the treatment regimen including withdrawal of immunosuppression after one year post-transplant for those recipients having received DHSC infusions.
This is an open-label, single-institution study to assess the safety and the efficacy of the Sip-Tego regimen for the induction of donor-specific immunologic unresponsiveness to a renal allograft. The investigators propose to treat 6 adult subjects in end-stage renal disease (ESRD) who do not demonstrate evidence of prior sensitization.
The purpose of this multi-center (observational) registry study is to establish a database of clinical and laboratory information that may help to identify any unique characteristics of tolerant participants that differ from participants who reject their kidney after discontinuing immunosuppressive drugs.
The investigators hypothesize that injecting donor bone marrow cells into the recipient thymus gland at the time of heart transplantation in children will prove to be feasible and safe. They further hypothesize that recipients receiving donor bone marrow will experience less acute rejection events with reduced long-term requirements for immunosuppressive medications when compared to controls who do not receive marrow but who are managed under an identical immunosuppressive protocol.
The purpose of this study is to evaluate if TCD601 can induce allogeneic tolerance in living donor renal transplant recipients
The purpose of this study is to determine the optimal regimen for the use of siplizumab, a human anti-CD2 antibody, combined with donor bone marrow cells and non-myeloablative conditioning, for tolerance induction in living donor renal transplantation
The primary aim of this study is to determine whether a peripheral blood or graft lymphocyte phenotype of immune senescence or exhaustion is different between operationally tolerant and non-tolerant liver allograft recipients.
The purpose of this pilot study is to determine if there is clinical correlation between the CKT and transplant recipients who are known to be on minimal or no immunosuppression (presumed tolerant) and those who are on conventional amounts of immunosuppression and have either experienced rejection (presumed hyper-responsive to donor) or have not experienced rejection (unknown responsive state).
This study is being done with the purpose of trying to understand if and why transplant recipients may develop tolerance to their transplanted organ. Tolerance means being able to lower or take away immunosuppression (anti-rejection medications) without causing organ rejection.
This is an observational study for people who have received a kidney transplant within the past 1 to 5 years. Researchers in this study are looking for a certain pattern of genes and cells in the blood that has been found in a group of rare transplant patients who do not need immunosuppression. The study goal is to find out how common this pattern is in transplant patients, as a first step in determining if it can be used to personalize anti-rejection drug regimens better.
This study seeks to determine if administration of the drug belumosudil (KD025) will be safe and improve transplant tolerance in subjects undergoing combined Human Leukocyte Antigen (HLA) single haplotype-matched related or 0-3 antigen (at A, B, C, DR) HLA mismatched unrelated living donor kidney and hematopoietic stem cell transplantation.
The goal of this observational study is to establish risk factors for post-transplant in adult individuals with cirrhosis without diabetes undergoing liver transplant evaluation. The question being addressed is: can laboratory work, anthropometric tests, functional tests, imaging, and advanced measurements such as wrist actigraphy, continuous glucose monitoring, or oral glucose tolerance testing predict the development of diabetes after liver transplant? Participants will be asked to periodically participate in wearing a continuous glucose monitor and wrist actigraph and obtain an oral glucose tolerance test both before and after liver transplant.
This study will examine the safety and effectiveness of a bone marrow transplant after kidney transplant (from either a living or deceased donor). An investigational medication and other treatments will be given prior to and after the transplant to help protect the transplanted kidney from being attacked by the body's immune system
The study seeks to determine if patients with a pre-existing, well-functioning kidney transplant from a HLA-identical living donor can be withdrawn from immunosuppressive medications without compromising allograft function through hematopoietic stem cell (HPSC) infusion from the same donor. HPSC infusion will be preceded by a conditioning regimen of total lymphoid irradiation (TLI) and rabbit anti-thymocyte globulin (rATG).
This is a single arm phase 1 non randomized dose finding study for safety, feasibility and efficacy of deceased donor vertebral body (VB) marrow cell infusion and kidney transplantation.
A randomized controlled study to evaluate the safety, efficacy, and overall benefit of FCR001 cell therapy in de novo living donor renal transplantation.
This study will determine whether a preparatory regimen including total lymphoid irradiation (TLI), total body irradiation (TBI), anti-thymocyte globulin (ATG) and infusion of the donor hematopoietic stem cells when given along with recipient regulatory T cells (Tregs) will allow for eventual discontinuation of anti-rejection drugs after living donor kidney transplantation.
The purpose of this study is to find out if an investigational treatment will allow kidney transplant recipients to better accept their new kidney and stop immunosuppressive medicines. This study is for kidney transplant recipients who receive a kidney from a sibling donor. The investigational treatment is started after kidney transplant. It begins with a regimen of a drug called rabbit anti-thymocyte globulin (rATG) combined with radiation therapy (known as total lymphoid irradiation, or TLI) to the lymph nodes and spleen. This is followed by an infusion of blood stem cells, which will be donated by the same sibling who donated their kidney. Researchers think that this treatment allows immune cells from the donor and recipient to live side by side, a condition referred to as "mixed chimerism." Mixed chimerism may help create a state of "tolerance" in kidney transplant recipients in which all immunosuppressive medications can be stopped without rejection of the transplanted kidney. This study will test whether (1) the investigational treatment will allow patients to stop immunosuppressive medications after their kidney transplant and (2) if the treatment impacts the rate of kidney rejection and the side effects of immunosuppressive medications.
This is a single-center, prospective, open-label, non-randomized clinical trial exploring cellular therapy to facilitate immunosuppression withdrawal in liver transplant recipients.
The study will determine whether patients with functioning Human Leukocyte Antigen (HLA) matched kidney transplants for at least one year and who want to discontinue immunosuppressive drugs can be treated with Total Lymphoid Irradiation (TLI) and rabbit Anti-Thymocyte Globulin (rATG) and an HLA matched donor hematopoietic progenitor cell infusion such that their drugs are successfully withdrawn while maintaining normal renal function.
This is a single-center, prospective, open-label, non-randomized clinical trial exploring cellular therapy to facilitate immunosuppression withdrawal in liver transplant recipients.
Anti-rejection medicines, also known as immunosuppressive drugs, are prescribed to organ transplant recipients to prevent rejection of the new organ. Long-term use of these medicines places transplant recipients at higher risk of serious infections and certain types of cancer. The purpose of this study is to determine if: * it is safe to give mesenchymal stromal cells (MSCs) to kidney transplant recipients, and * the combination of the immunosuppressive (anti-rejection) study drugs plus the MSCs can allow a kidney transplant recipient to slowly reduce and/or then completely stop all anti-rejection drugs, without rejection of their kidney (renal) allograft, a process called "immunosuppression withdrawal".
The intervention in this trial is intraocular islet transplantation. A single dose of 1000 - 3000 Islet Equivalents (IEQ)/kg recipient body weight (BW) will be infused into the anterior chamber of the eye through a self-sealing incision in the peripheral cornea. The procedure is projected to take approximately 20-30 minutes. Subject will remain flat on their back for 1 - 3 hours after islet infusion to maximize adhesion of the islets to the iris.
This study is designed to collect longitudinal biological samples from patients after hematopoietic cell transplantation (HCT) cared for at multiple bone marrow transplant centers to validate biomarkers of both acute and chronic GVHD as well as for use in future unspecified research. The centers include Dana-Farber Cancer Institute and Boston's Children's Hospital, Johns Hopkins Sidney Kimmel Comprehensive Cancer Center, Fred Hutchinson Cancer Research Center, Texas Children's Hospital, Children's National Medical Center, and Indiana University Simon Cancer Center.
Regulatory CD4+CD25+ T cells (Treg) derived from the thymus and/or peripheral tissues have been demonstrated to broadly control T cell reactivity (14). Importantly, Tregs have been shown to control immune responsiveness to alloantigens and significantly contribute to operational tolerance in transplantation models (15, 16). However, there have been limited efforts to harness the therapeutic potential of directly isolated CD4+CD25+ Treg cells for controlling graft rejection and inducing transplantation tolerance, such as for kidney transplants. In order for CD4+CD25+ Treg cells to be used as a clinical treatment, the following cell properties could be necessary: ex vivo generation of sufficient numbers of cells, migration in vivo to sites of antigenic reactivity, ability to suppress rejection in an alloantigen-specific manner, and survival/expansion after infusion for a critical, but currently unknown, period of time. Our published work and that of other investigators has demonstrated 1) the feasibility of expanding Treg ex vivo, 2) the ability of these cells to downregulate allogeneic immune responses in vitro, and 3) the efficacy of Treg for prevention of allograft rejection in animal models (15,16). We have developed strategies for the ex vivo expansion of naturally occurring human Tregs (nTregs) that allow for the practical employment of this cellular therapy in the clinic. Our central hypothesis is that sufficient human nTreg can be expanded ex vivo and used to both prevent renal transplant rejection and facilitate the reduction and subsequent withdrawal of drug-based immunosuppression. This study will allow for us to define the safety of Treg adoptive cellular transfer (TRACT) in living donor renal transplant recipients that draws upon our extensive preclinical experience with expanded Tregs, as well as our recognized clinical expertise with designing immunosuppressive regimens compatible with this type of therapeutic cell transfer.
Four subjects were treated under compassionate use provisions under this study with facilitating cell therapy (FCRx)
The primary objective of this study is to assess the ability of bone marrow transplantation (BMT) and high-dose post-transplantation cyclophosphamide (PT/Cy) to induce renal allograft tolerance and thus enable discontinuation of immunosuppressive therapy in haploidentical living related donor renal transplant recipients.