View clinical trials related to Kidney Transplantation.
Filter by:Renal transplantation is the treatment of choice of the chronic renal insufficiency arrived at its final stage. Tacrolimus is an immunosuppressant treatment used for the prevention of episodes of acute rejection. Tacrolimus is characterized by a narrow therapeutic index and important interindividual variations of its pharmacokinetic characteristics. Proteins CYP3A4 and CYP3A5 are responsible of intestinal and hepatic metabolism of Tacrolimus. Various polymorphisms for CYP3A5 and CYP3A4 were described and several retrospective studies suggested an association between a genetic polymorphism of CYP3A5 and the pharmacokinetic parameters of Tacrolimus. In particular, we showed that the presence of an allele CYP3A5*1 was associated to the use of more important amounts of Tacrolimus to obtain the desired blood concentrations. This study is a national, multicentric, prospective, opened, randomized on two arms of treatment. 280 receivers of a renal transplant in 12 centres will be included. The genotyping of gene CYP3A5 will be carried out in the 6 days following transplantation. During the first week, the patients will be treated by basiliximab, MMF and corticosteroids. They will be randomized (central randomization) in D6 to receive either Tacrolimus at 0.2 mg/kg/d, or at a dosage adapted to their genotype. After determination of the first residual blood concentration of Tacrolimus realized after six oral intakes, the daily amounts of Tacrolimus could be modified if necessary to reach the desired blood concentrations. The total duration of the study for a patient is 3 months after transplantation. The objective of this study is to evaluate the impact of the adaptation, according to the genotype of the CYP3A5 of the patient, of the first amount of Tacrolimus on the first residual blood concentration of Tacrolimus, keeping in mind the aim of the individualization of dosage schedule by pharmacogenetic approach. Principal criterion : Comparison, between the two groups, of the percentage of patients for whom the first blood concentration of Tacrolimus evaluated 3 days (D10) after the first administration of Tacrolimus ranges between 10 and 15 ng/ml. Statistics will be carried out in intention to treat. The principal criterion will be analyzed by the test of chi-2.
A study to assess the safety and efficacy of Alefacept in de novo kidney transplant patients.
This study will evaluate the efficacy and safety of enteric-coated mycophenolate sodium (EC-MPS) in a cyclosporine microemulsion based regimen with C2 monitoring in de novo kidney transplant recipients
Activity of genes in donor tissues that are involved in inflammation are thought to be involved with early organ dysfunction, increased immune responses in transplant recipients, and organ rejection. The purpose of this study is to determine the relationship between genetic expression in donor and recipient tissue with transplant survival. Participants in this study will have received heart, lung, liver, or kidney transplants.
The study evaluated renal graft function (based on the calculated creatinine clearance) 6 months after kidney transplantation in patients receiving either a regimen of 'reduced-dose' tacrolimus + sirolimus + corticosteroids or a regimen of 'standard-dose' tacrolimus + sirolimus + corticosteroids.
This study evaluated renal graft function (based on calcuated creatinine clearance) 12 months after transplantation in patients receiving either a regimen of reduced dose or standard dose cyclosporine in combination with sirolimus and corticosteroids. The incidence of acute graft rejection at 6 and 12 months following transplantation and patient and graft survival at 12 months were evaluated also.
This study evaluated renal graft function based on calculated creatinine clearance at 6 months after transplantation in patients receiving a regimen of 'reduced' or 'standard' dose tacrolimus plus sirolimus and corticosteroids.
The purpose of this study is to compare renal function of immunosuppressive regimens with different relevance of the calcineurin inhibitor (CNI) cyclosporine: standard dose CNI, low dose CNI, CNI free in de novo kidney transplant patients after 12 months of therapy.
A study to compare the conversion to Prograf® (tacrolimus) to the continuation of cyclosporine in patients at risk for chronic renal allograft failure
To evaluate the safety and efficacy of different doses of cyclosporine given concomitantly with a fixed dose of sirolimus in kidney transplant recipients.