View clinical trials related to Kidney Transplantation.
Filter by:Retrospective chart review to gather information on Sensipar patterns of use and effects on biochemical parameters in renal transplant recipients
The purpose of the protocol is to increase the number of living donor transplants by eliminating immune incompatibilities between donors and recipients through paired donation.
This study will determine which, if any, allelic variants of mycophenolic acid (MPA) metabolizing enzymes, drug transporters and drug targets are associated with the observed variation in pharmacokinetic and pharmacodynamic outcomes observed with CellCept usage. Patients participating in study ML17225 will be eligible for this pharmacogenetic investigation, and will have one additional blood sample taken during the study. The anticipated time on study treatment in study ML17225 is 1-2 years, and the target sample size is 500+ individuals.
The purpose of this study is to determine if analysis of urine samples for specific markers can predict transplant rejection in people who have received kidney transplants.
The purpose of this study is to explore the safety and efficacy of two different immunosuppressive regimens (sequential tacrolimus/mycophenolate mofetil [MMF] plus steroids versus tacrolimus plus MMF, following induction with daclizumab) in recipients of marginal donor kidneys.
Abnormalities in glucidic and lipidic metabolism are common features in renal transplant patients on chronic immunossupression with steroids and calcineurin inhibitors. In kidney transplant patients with chronic rejection these abnormalities cluster with renal and cardiovascular risk factors and altogether may sustain premature graft loss and may increase the risk of cardiovascular morbidity and mortality. Thiozolidinediones are a new class of oral antidiabetic agents that may increase insulin sensitivity improving the glucose tolerance and dyslipidemia. Moreover, rosiglitazone –one of these drugs- has been reported to decrease blood pressure and albuminuria in subjects with type 2 diabetes and nephropathy. Recent finding that glitazones ameliorate the glucidic and lipidic profile induced by steroid treatment in healthy subjects, provided a further rationale to evaluate the metabolic and renal effects of glitazones in renal transplant patients on chronic steroid therapy. Thus, we designed and organized a pilot study to assess the short-term risk/benefit profile of rosiglitazone in renal transplant patients with chronic rejection. Ten patients will have a basal evaluation of insulin sensitivity, glucose tolerance,lipid profile, renal hemodynamic and albuminuria. These evaluations will be repeated at the end of the treatment (4 months of therapy with rosiglitazone 8 mg/day) period and 2 months after treatment withdrawal.
During the past 15 years, however, the superior immunosuppressive efficacy of CsA and the well-known toxicity of long-term steroid therapy have prompted trials of steroid withdrawal from renal allograft recipients at various intervals after transplantation. Steroid withdrawal or avoidance must be balanced against the associated risk of precipitating acute allograft rejection. Moreover, with the current immunosuppressive regimens, by 10 years approximately 50% of grafts will have been lost due mainly to chronic rejection or the side-effects of immunosuppressive therapy. Thus, the quest for therapies that might induce specific immune tolerance – ideally via short-term interventions that would target only the pathogenic immune response and leave the protective host immune response unimpaired – has provided a “holy grail” for transplant immunologists. The humanized IgG monoclonal antibody Campath-1H has been hypothesized to provide enough immunosuppression that would allow maintenance therapy with low-dose CsA, and possibly reprogramming the immune system so to encourage tolerance processes. Despite Campath-1H immunosuppressive regimens have been claimed to induce a condition of “almost tolerance”, this has not been proved nor evidence of development of persistent regulatory immune responses long-term post transplant has been provided. Thus, characterizing phenotypically and functionally distinct subsets of T-regulatory cells possibly generated selectively in non-rejecting transplant recipients in Campath-1H-based immunosuppressive regimens may help to find new noninvasive markers of immune system activation to tailor immunosuppressive protocols. The primary aim of the study is to compare the effect of Campath-1H, low dose sirolimus versus Campath-1H, low dose CsA, both in addition to low dose MMF on phenotypic and functional profiles of peripheral blood mononuclear cells (PBMCs) in kidney transplant recipients in a steroid-free regimen.
The purpose of this study is to test noninvasive methods to monitor the health and condition of new kidneys in people who have received kidney transplants.
The purpose of this study is to determine whether treatment with rituximab (anti-CD20, Rituxan®, MabThera®) in individuals who develop new anti-HLA antibodies after renal (kidney) transplant will promote longer-term survival of the transplanted kidney.The pilot study compares the use of rituximab (Rituxan®) + site-specific standard immunosuppression to placebo + site-specific standard immunosuppression in the treatment of circulating anti-HLA antibodies in subjects who develop de novo anti-HLA antibodies between 3-36 months after transplant.
The main purpose of this study is to investigate, whether a steroid free immunosuppressive treatment is a valuable alternative in the treatment of de novo kidney transplant recipients and if it is possible to withdraw calcineurin inhibitors after 3 months.