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Park,S.I.; Felipe,C.R.; Machado,P.G.; Garcia,R.; Skerjanec,A.; Schmouder,R.; Tedesco-Silva Jr.,H.; Medina-Pestana,J.O.. |
FTY720 is a new and effective immunosuppressive agent, which produces peripheral blood lymphopenia through a lymphocyte homing effect. We investigated the relationship between the dose of FTY720 or blood concentration (pharmacokinetics, PK) and peripheral lymphopenia (pharmacodynamics, PD) in 23 kidney transplant recipients randomized to receive FTY720 (0.25-2.5 mg/day) or mofetil mycophenolate (2 mg/day) in combination with cyclosporine and steroids. FTY720 dose, blood concentrations and lymphocyte counts were determined weekly before and 4 to 12 weeks after transplantation. The effect of PD was calculated as the absolute lymphocyte count or its reductions. PK/PD modeling was used to find the best-fit model. Mean FTY720 concentrations were 0.36 ± 0.05... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: FTY720; Lymphopenia; Pharmacokinetics; Pharmacodynamics; Immunosuppression; Renal transplants. |
Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2005000500005 |
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Spinelli,G.A.; Felipe,C.R.; Machado,P.G.; Garcia,R.; Casarini,D.E.; Moreira,S.R.; Park,S.I.; Tedesco-Silva Jr.,H.; Medina-Pestana,J.O.. |
The influence of drug concentrations on the development of persistent posttransplant hyperlipidemia was investigated in 82 patients who received cyclosporin A (CsA) and prednisone plus sirolimus (SRL) (52) or azathioprine (AZA) (30) during the first year after transplantation. Blood levels of CsA and SRL, daily doses of AZA and prednisone, and cholesterol, triglyceride, and glucose concentrations were determined during each visit (pretransplant and 30, 60, 90, 120, 180, and 360 days posttransplant). Persistent hyperlipidemia was defined as one-year average steady-state cholesterol (CavCHOL) or triglyceride (CavTG) concentrations above 240 and 200 mg/dL, respectively. Mean cholesterol and triglyceride concentrations increased after transplantation (P <... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hyperlipidemia; Cholesterol; Triglyceride; Kidney transplantation; Cyclosporin A; Sirolimus. |
Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2006000100003 |
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Garcia,R.; Machado,P.G.; Felipe,C.R.; Park,S.I.; Spinelli,G.A.; Franco,M.F.; Tedesco-Silva Jr.,H.; Medina-Pestana,J.O.. |
Chronic allograft nephropathy is among the major causes of graft loss even in low-risk kidney transplant recipients and correlates with acute nephrotoxic events during the first year post-transplant. Therefore, calcineurin inhibitor-free regimens may improve patient and graft survival among recipients of living-related kidney transplants. To confirm this hypothesis, we evaluated the efficacy and safety of two calcineurin inhibitor-free regimens in 92 low-risk recipients of one-haplotype living-related kidney transplants. Immunosuppression consisted of tacrolimus, azathioprine and prednisone (group I, GI, N = 38), 2 doses of daclizumab, mycophenolate mofetil (MMF), and prednisone (GII, N = 33) and 2 doses of daclizumab, MMF, sirolimus and prednisone (GIII,... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Tacrolimus; Mycophenolate mofetil; Sirolimus; Kidney transplantation; Acute rejection; Clinical trial. |
Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000400003 |
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Silva,L.A.; Felipe,C.R.; Park,S.I.; Pinheiro-Machado,P.; Garcia,R.; Franco,M.; Moreira,S.R.; Tedesco-Silva Jr.,H.; Medina-Pestana,J.. |
We conducted a retrospective analysis of the influence of full doses of calcineurin inhibitors [8-10 mg kg-1 day-1 cyclosporine (N = 80), or 0.2-0.3 mg kg-1 day-1 tacrolimus (N = 68)] administered from day 1 after transplantation on the transplant outcomes of a high-risk population. Induction therapy was used in 13% of the patients. Patients also received azathioprine (2 mg kg-1 day-1, N = 58) or mycophenolate mofetil (2 g/day, N = 90), and prednisone (0.5 mg kg-1 day-1, N = 148). Mean time on dialysis was 79 ± 41 months, 12% of the cases were re-transplants, and 21% had panel reactive antibodies >10%. In 43% of donors the cause of death was cerebrovascular disease and 27% showed creatinine above 1.5 mg/dL. The incidence of slow graft function (SGF) and... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cyclosporine; Tacrolimus; Delayed graft function; Graft function; Kidney transplantation. |
Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2006000100005 |
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Machado,P.G.P.; Felipe,C.R.; Park,S.I.; Garcia,R.; Moreira,S.; Casarini,D.; Franco,M.; Alfieri,F.; Tedesco-Silva Jr.,H.; Medina-Pestana,J.O.. |
The use of sirolimus (SRL) in combination with full doses of cyclosporin A (CsA) results in reduced one-year kidney allograft function, which is associated with shorter long-term allograft survival. We determined the effect of reduced CsA exposure on graft function in patients receiving SRL and prednisone. Ninety recipients of living kidney transplants receiving SRL (2 mg/day, po) were compared to 35 recipients receiving azathioprine (AZA, 2 mg kg-1 day-1, po). All patients also received CsA (8-10 mg kg-1 day-1, po) and prednisone (0.5 mg kg-1 day-1). Efficacy end-point was a composite of biopsy-confirmed acute rejection, graft loss, or death at one year. Graft function was measured by creatinine, creatinine clearance, and graft function deterioration... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Sirolimus; Cyclosporine; Graft function; Immunosuppression; Kidney transplantation. |
Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2004000900004 |
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