Cefiderocol Pharmacokinetics in Adult Patients With Cystic Fibrosis

Status Recruiting

Clinical Trial Summary

There is established evidence that adult patients with Cystic Fibrosis (CF) may have altered antibiotic pharmacokinetics compared with non-CF patients. Cefiderocol is a newly approved broad spectrum intravenous siderophore cephalosporin antibiotic, which has potent in vitro activity against multidrug resistant Pseudomonas aeruginosa, Burkholderia cepacia complex, Achromobacter species, and Stenotrophomonas maltophilia, all pathogens implicated in CF pulmonary exacerbations. This study will determine the pharmacokinetics and tolerability of cefiderocol in 12 adult CF patients admitted for a pulmonary exacerbation at one of 4 participating hospitals in the US. Patients will remain on standard of care IV antibiotics and receive 4-6 doses of cefiderocol 2 grams infused over 3 hours every 6-8 hours, depending on kidney function. Blood will be sampled after the final dose to determine concentrations and pharmacokinetics of cefiderocol. Safety and tolerability will be assessed throughout the 2 day study.

Clinical Trial Description

Participants will receive 4-6 doses of cefiderocol 2 grams every 6-8 hours, in addition to standard intravenous antibiotic therapy selected by the site. Just prior and then after the final dose, a total of nine blood samples will be collected to measure cefiderocol concentrations. Data will be fit to a population pharmacokinetic model. The final model will be utilized in a Monte Carlo simulation to determine the probability of several different dosing regimens retaining concentrations above the minimum inhibitory concentration (MIC) for at least 75% of the dosing interval. These data will be utilized to determine an optimized dosing regimen for adults with CF. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT05314764
Study type	Interventional
Source	Hartford Hospital
Contact	Joseph L Kuti, PharmD
Phone	860-972-3612
Email	joseph.kuti@hhchealth.org
Status	Recruiting
Phase	Phase 4
Start date	June 1, 2022
Completion date	June 2023

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