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Pediatr Transplant. 2002 Apr;6(2):124-6.

Efficacy and pharmacokinetics of tacrolimus oral suspension in pediatric liver transplant recipients.

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1
Pediatric Liver Transplant Program andHospital Pharmacy, Saint-Luc University Clinics, Université Catholique de Louvain, Brussels, Belgium. reding@chex.ucl.ac.be

Abstract

The use of tacrolimus in small pediatric graft recipients may require the availability of a suspension formulation for appropriate dose titration and easier administration. The pharmacokinetics (Pk) of an extemporaneously prepared oral suspension of tacrolimus (OST) was investigated in 15 pediatric liver transplant recipients, and was compared with the corresponding data with tacrolimus capsules (TC). Graft and patient survival rates were 100%. Acute rejection and steroid-resistant rejection were encountered in 9/15 and 3/15 patients, respectively. Comparison of Pk data showed a lower oral absorption of OST when compared with TC. No significant correlation could be made between the Pk parameters and rejection. Despite the lower bioavailability of OST when compared with TC, the rejection incidence was similar with both formulations (60% vs. 55%, respectively). Accordingly, the use of OST may constitute an alternative option for tacrolimus administration in low body weight organ recipients, to allow dosage titration in the early post-transplant weeks.

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