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.
Hornik, Christoph P.
中科院分区:
医学2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.

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在包括绝大多数肥胖儿童和青少年的队列中评价头孢他啶的药代动力学(PK),并评估竞争性给药策略的疗效。使用随机采集的血浆样本开发群体PK模型。对于每种给药策略,使用经验贝叶斯估计值计算研究受试者基于模型的目标达成概率(PTA)估计值。此外,使用随机模型模拟虚拟生成的受试者,评价了体型和肾功能对PTA的影响。29名参与者,其中24人肥胖,为分析提供了数据。参与者的中位(范围)年龄、体重和体重指数分别为12.2岁(2.3-20.6)、59.2 kg(8.4-121)和25.2 kg/m2(13.8-42.9)。50 mg/kg IV q8 h(最大6 g/天)或40 mg/kg IV q6 h(最大6 g/天)给药导致估计肾小球滤过率(GFR)≥~80 mL/min/1.73 m2的肥胖受试者亚组的PTA值≥90%(MIC = 8 mg/L)。然而,对于两种方案,随机模型模拟显示GFR ≥120 mL/min/1.73 m2的受试者随着体重增加PTA值较低(<90%)。或者,对于GFR ≥80 mL/min/1.73m2、体重介于10 - 120 kg之间的受试者,允许使用40 mg/kg IV q6 h方案的最大日剂量为8 g/天,可提供接近或高于目标(90%)的PTA值。我们的分析表明,在肥胖和GFR ≥80 mL/min/1.73m2的儿童和青少年中,40 mg/kg IV q6 h(最大8 g/天)给药可使PTA最大化。Clinicaltrials.gov标识符:NCT 01431326
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
DOI: 10.1097/ftd.0000000000000369
发表时间: 2017-04-01
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通讯作者: Lemaitre, Florian
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影响因子: 6.1
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影响因子: 6.1
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