A pharmacokinetic study of Neoral in childhood steroid-dependent nephrotic syndrome.
Seven children with steroid-dependent nephrotic syndrome who were on stable remission under Sandimmun therapy were switched to Neoral at the same dosage. During the 4-month follow-up period, two patients relapsed, due to poor compliance in one of them. Serum creatinine remained stable in all patients. Pharmacokinetic profiles were performed at day 0 while on Sandimmun and 4 weeks after conversion to Neoral. Following conversion to Neoral, the peak concentration occurred earlier (2+/-1.4 h vs 3.9+/-2.4 h), and the maximum concentration (677+/-386 ng/ml vs 488+/-265 ng/ml) and the area under the curve (3,082+/-1,536 ng/ml/h vs 2,201+/889 ng/ml/h) were higher. We conclude that Neoral results in an increased bioavailability of cyclosporine (CsA) as compared to Sandimmun in patients with steroid-dependent nephrotic syndrome in remission.
Service de Néphrologie Pédiatrique, Hôpital Necker-Enfants Malades, Paris, France. niaudet@necker.fr
P
P
Niaudet
O
O
Reigneau
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H
Humbert
D000293:Adolescent; D000893:Anti-Inflammatory Agents / Q000493:pharmacokinetics* / Q000627:therapeutic use*; D019540:Area Under Curve; D002648:Child; D016572:Cyclosporine / Q000493:pharmacokinetics* / Q000627:therapeutic use*; D006801:Humans; D008297:Male; D009404:Nephrotic Syndrome / Q000188:drug therapy*; D013256:Steroids
D000893:Anti-Inflammatory Agents; D013256:Steroids; D016572:Cyclosporine