Pharmacokinetics of Ceftazidime in Children and Adolescents with Obesity.
Pharmacokinetics of Ceftazidime in Children and Adolescents with Obesity.
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头孢他啶在肥胖儿童和青少年中的药代动力学。
DOI:
10.1007/s40272-021-00460-4
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发表时间:
2021-09
期刊:
影响因子:
3.7
通讯作者:
Hornik, Christoph P.
中科院分区:
文献类型:
--
作者:
Maharaj, Anil R.;Wu, Huali;Zimmerman, Kanecia O.;Muller, William J.;Sullivan, Janice E.;Sherwin, Catherine M. T.;Autmizguine, Julie;Rathore, Mobeen H.;Hornik, Chi D.;Al-Uzri, Amira;Payne, Elizabeth H.;Benjamin, Daniel K., Jr.;Hornik, Christoph P.
Evaluate ceftazidime pharmacokinetics (PK) in a cohort that includes a predominate number of children and adolescents with obesity and assess the efficacy of competing dosing strategies. A population PK model was developed using opportunistically collected plasma samples. For each dosing strategy, model-based probability of target attainment (PTA) estimates were computed for study participants using empirical Bayes estimates. In addition, the effects of body size and renal function on PTA were evaluated using stochastic model simulations with virtually generated subjects. Twenty-nine participants, 24 of whom were obese, contributed data towards the analysis. The median (range) age, body weight, and body-mass index of participants were 12.2 years (2.3–20.6), 59.2 kg (8.4–121), and 25.2 kg/m2 (13.8–42.9), respectively. Administration of 50 mg/kg IV q8h (max 6 g/day) or 40 mg/kg IV q6h (max 6 g/day) resulted in PTA values of ≥90% (MIC = 8 mg/L) for the subset of obese participants with estimated glomerular filtration rates (GFR) ≥~80 mL/min/1.73m2. However, for both regimens, stochastic model simulations denoted lower PTA values (<90%) with increasing body weight for subjects with GFR ≥120 mL/min/1.73m2. Alternatively, permitting for a maximum daily of dose of 8 g/day using a 40 mg/kg IV q6h regimen provided PTA values that were near or above target (90%) for subjects between 10 to 120 kg with GFR ≥80 mL/min/1.73m2. Our analysis suggests administration of 40 mg/kg IV q6h (max 8 g/day) maximizes PTA in children and adolescents with obesity and GFR ≥80 mL/min/1.73m2. Clinicaltrials.gov Identifier: NCT01431326
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