Population Pharmacokinetics of Cefiderocol During Acute Pulmonary Exacerbations in Adult Patients With Cystic Fibrosis

  • STATUS
    Recruiting
  • End date
    Jun 24, 2023
  • participants needed
    12
  • sponsor
    Hartford Hospital
Updated on 24 October 2022
antibiotics
fibrosis
burkholderia cepacia

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.

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.

Details
Condition Cystic Fibrosis, Pneumonia, Bacterial
Treatment Cefiderocol
Clinical Study IdentifierNCT05314764
SponsorHartford Hospital
Last Modified on24 October 2022

Eligibility

Yes No Not Sure

Inclusion Criteria

Documented diagnosis of CF
Acute pulmonary exacerbation as the primary reason for admission to the hospital with requirement to receive systemic antibiotic treatment

Exclusion Criteria

Females that are pregnant and/or breastfeeding
History of any moderate or severe hypersensitivity or allergic reaction to any β-lactam antibiotic (a history of mild rash to a cephalosporin followed by uneventful re-exposure is not a contraindication)
History of a lung transplant at any time in the past or any other organ transplantation (e.g., liver) within the last 6 months
Moderate to severe renal dysfunction defined as a creatinine clearance < 60 mL/min (as calculated by the Cockcroft-Gault equation using actual body weight) or requirement for continuous renal replacement therapy or hemodialysis
A hemoglobin less than 8 gm/dL at baseline
Any rapidly-progressing disease or immediately life-threatening illness (defined as imminent death within 48 hours in the opinion of the investigator)
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