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Sirolimus steady-state trough concentrations are not affected by bolus methylprednisolone therapy in renal allograft recipients. 2002

L Bäckman, and H Kreis, and J M Morales, and H Wilczek, and R Taylor, and J T Burke
Department of Transplantation and Liver Surgery, Sahlgrenska University Hospital, Göteborg, Sweden.

OBJECTIVE To determine whether bolus doses of methylprednisolone affect the steady-state trough concentrations of sirolimus. METHODS Fourteen renal transplant recipients received concentration-controlled sirolimus therapy in combination with azathioprine and steroids (n=8) or mycophenolate mofetil and steroids (n=6). Bolus doses of methylprednisolone (mean total dose over 1-5 days, 1694 mg; range, 500-3000 mg) were given for the treatment of acute rejection. For each patient, the sirolimus dose (mean, 24.1 mg; range, 3.3-52.5 mg) was the same before and during methylprednisolone therapy. RESULTS Mean sirolimus whole blood trough concentrations before and after treatment with methylprednisolone were 28.8 ng ml-1 (range, 13.9-45.3 ng ml-1), and 28.5 ng ml-1 (range, 13.0-47.9 ng ml-1), respectively (P=0.85; 95% confidence interval on the difference -3.3, 4.0 ng ml-1). CONCLUSIONS Bolus methylprednisolone treatment does not affect steady-state sirolimus trough concentrations.

UI MeSH Term Description Entries
D007166 Immunosuppressive Agents Agents that suppress immune function by one of several mechanisms of action. Classical cytotoxic immunosuppressants act by inhibiting DNA synthesis. Others may act through activation of T-CELLS or by inhibiting the activation of HELPER CELLS. While immunosuppression has been brought about in the past primarily to prevent rejection of transplanted organs, new applications involving mediation of the effects of INTERLEUKINS and other CYTOKINES are emerging. Immunosuppressant,Immunosuppressive Agent,Immunosuppressants,Agent, Immunosuppressive,Agents, Immunosuppressive
D008297 Male Males
D008775 Methylprednisolone A PREDNISOLONE derivative with similar anti-inflammatory action. 6-Methylprednisolone,Medrol,Metipred,Urbason,6 Methylprednisolone
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D009173 Mycophenolic Acid Compound derived from Penicillium stoloniferum and related species. It blocks de novo biosynthesis of purine nucleotides by inhibition of the enzyme inosine monophosphate dehydrogenase (IMP DEHYDROGENASE). Mycophenolic acid exerts selective effects on the immune system in which it prevents the proliferation of T-CELLS, LYMPHOCYTES, and the formation of antibodies from B-CELLS. It may also inhibit recruitment of LEUKOCYTES to sites of INFLAMMATION. Cellcept,Mycophenolate Mofetil,Mycophenolate Mofetil Hydrochloride,Mycophenolate Sodium,Mycophenolic Acid Morpholinoethyl Ester,Myfortic,RS 61443,RS-61443,Sodium Mycophenolate,Mofetil Hydrochloride, Mycophenolate,Mofetil, Mycophenolate,Mycophenolate, Sodium,RS61443
D004338 Drug Combinations Single preparations containing two or more active agents, for the purpose of their concurrent administration as a fixed dose mixture. Drug Combination,Combination, Drug,Combinations, Drug
D005260 Female Females
D005938 Glucocorticoids A group of CORTICOSTEROIDS that affect carbohydrate metabolism (GLUCONEOGENESIS, liver glycogen deposition, elevation of BLOOD SUGAR), inhibit ADRENOCORTICOTROPIC HORMONE secretion, and possess pronounced anti-inflammatory activity. They also play a role in fat and protein metabolism, maintenance of arterial blood pressure, alteration of the connective tissue response to injury, reduction in the number of circulating lymphocytes, and functioning of the central nervous system. Glucocorticoid,Glucocorticoid Effect,Glucorticoid Effects,Effect, Glucocorticoid,Effects, Glucorticoid
D006084 Graft Rejection An immune response with both cellular and humoral components, directed against an allogeneic transplant, whose tissue antigens are not compatible with those of the recipient. Transplant Rejection,Rejection, Transplant,Transplantation Rejection,Graft Rejections,Rejection, Graft,Rejection, Transplantation,Rejections, Graft,Rejections, Transplant,Rejections, Transplantation,Transplant Rejections,Transplantation Rejections
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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