PMID- 30602511 OWN - NLM STAT- MEDLINE DCOM- 20200218 LR - 20200309 IS - 1098-6596 (Electronic) IS - 0066-4804 (Print) IS - 0066-4804 (Linking) VI - 63 IP - 3 DP - 2019 Mar TI - Are Standard Dosing Regimens of Ceftriaxone Adapted for Critically Ill Patients with Augmented Creatinine Clearance? LID - 10.1128/AAC.02134-18 [doi] LID - e02134-18 AB - The objective of the present study was to determine whether augmented renal clearance (ARC) impacts negatively on ceftriaxone pharmacokinetic (PK)/pharmacodynamic (PD) target attainment in critically ill patients. Over a 9-month period, all critically ill patients treated with ceftriaxone were eligible. During the first 3 days of antimicrobial therapy, every patient underwent 24-h creatinine clearance (CL(CR)) measurements and therapeutic drug monitoring of unbound ceftriaxone. ARC was defined by a CL(CR) of >/=150 ml/min. Empirical underdosing was defined by a trough unbound ceftriaxone concentration under 2 mg/liter (percentage of the time that the concentration of the free fraction of drug remained greater than the MIC [fT(>MIC)], 100%). Monte Carlo simulation (MCS) was performed to determine the probability of target attainment (PTA) of different dosing regimens for various MICs and three groups of CL(CR) (<150, 150 to 200, and >200 ml/min). Twenty-one patients were included. The rate of empirical ceftriaxone underdosing was 62% (39/63). A CL(CR) of >/=150 ml/min was associated with empirical target underdosing with an odds ratio (OR) of 8.8 (95% confidence interval [CI] = 2.5 to 30.7; P < 0.01). Ceftriaxone PK concentrations were best described by a two-compartment model. CL(CR) was associated with unbound ceftriaxone clearance (P = 0.02). In the MCS, the proportion of patients who would have failed to achieve a 100% fT(>MIC) was significantly higher in ARC patients for each dosage regimen (OR = 2.96; 95% CI = 2.74 to 3.19; P < 0.01). A dose of 2 g twice a day was best suited to achieve a 100% fT(>MIC) When targeting a 100% fT(>MIC) for the less susceptible pathogens, patients with a CL(CR) of >/=150 ml/min remained at risk of empirical ceftriaxone underdosing. These data emphasize the need for therapeutic drug monitoring in ARC patients. CI - Copyright (c) 2019 American Society for Microbiology. FAU - Ollivier, Julien AU - Ollivier J AD - Pharmacy and Clinical Pharmacy Department, CHU Bordeaux, Bordeaux, France. FAU - Carrie, Cedric AU - Carrie C AD - Anesthesiology and Critical Care Department, CHU Bordeaux, Bordeaux, France cedric.carrie@chu-bordeaux.fr. FAU - d'Houdain, Nicolas AU - d'Houdain N AD - Pharmacy and Clinical Pharmacy Department, CHU Bordeaux, Bordeaux, France. FAU - Djabarouti, Sarah AU - Djabarouti S AD - Pharmacy and Clinical Pharmacy Department, CHU Bordeaux, Bordeaux, France. AD - Pharmacokinetics and PK/PD Group, INSERM 1034, Universite Bordeaux, Bordeaux, France. FAU - Petit, Laurent AU - Petit L AD - Anesthesiology and Critical Care Department, CHU Bordeaux, Bordeaux, France. FAU - Xuereb, Fabien AU - Xuereb F AD - Pharmacy and Clinical Pharmacy Department, CHU Bordeaux, Bordeaux, France. AD - Pharmacokinetics and PK/PD Group, INSERM 1034, Universite Bordeaux, Bordeaux, France. AD - Universite Bordeaux Segalen, Bordeaux, France. FAU - Legeron, Rachel AU - Legeron R AD - Pharmacy and Clinical Pharmacy Department, CHU Bordeaux, Bordeaux, France. AD - Pharmacokinetics and PK/PD Group, INSERM 1034, Universite Bordeaux, Bordeaux, France. AD - Universite Bordeaux Segalen, Bordeaux, France. FAU - Biais, Matthieu AU - Biais M AD - Anesthesiology and Critical Care Department, CHU Bordeaux, Bordeaux, France. AD - Universite Bordeaux Segalen, Bordeaux, France. FAU - Breilh, Dominique AU - Breilh D AD - Pharmacy and Clinical Pharmacy Department, CHU Bordeaux, Bordeaux, France. AD - Pharmacokinetics and PK/PD Group, INSERM 1034, Universite Bordeaux, Bordeaux, France. AD - Universite Bordeaux Segalen, Bordeaux, France. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20190226 PL - United States TA - Antimicrob Agents Chemother JT - Antimicrobial agents and chemotherapy JID - 0315061 RN - 0 (Anti-Bacterial Agents) RN - 75J73V1629 (Ceftriaxone) RN - AYI8EX34EU (Creatinine) SB - IM MH - Adult MH - Anti-Bacterial Agents/administration & dosage/*pharmacokinetics/therapeutic use MH - Ceftriaxone/administration & dosage/*pharmacokinetics/therapeutic use MH - Creatinine/*urine MH - Critical Care MH - Critical Illness MH - Drug Monitoring/*methods MH - Female MH - Humans MH - Intensive Care Units MH - Male MH - Metabolic Clearance Rate/*physiology MH - Microbial Sensitivity Tests MH - Middle Aged PMC - PMC6395919 OTO - NOTNLM OT - augmented renal clearance OT - ceftriaxone OT - intensive care OT - pharmacokinetics EDAT- 2019/01/04 06:00 MHDA- 2020/02/19 06:00 PMCR- 2019/08/26 CRDT- 2019/01/04 06:00 PHST- 2018/10/08 00:00 [received] PHST- 2018/12/11 00:00 [accepted] PHST- 2019/01/04 06:00 [pubmed] PHST- 2020/02/19 06:00 [medline] PHST- 2019/01/04 06:00 [entrez] PHST- 2019/08/26 00:00 [pmc-release] AID - AAC.02134-18 [pii] AID - 02134-18 [pii] AID - 10.1128/AAC.02134-18 [doi] PST - epublish SO - Antimicrob Agents Chemother. 2019 Feb 26;63(3):e02134-18. doi: 10.1128/AAC.02134-18. Print 2019 Mar.