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Martin-Loeches I, Bruno CJ, DeRyke CA. Perspectives on the use of ceftolozane/tazobactam: a review of clinical trial data and real-world evidence. Future Microbiol 2024; 19:465-480. [PMID: 38252038 PMCID: PMC11216532 DOI: 10.2217/fmb-2023-0197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 12/06/2023] [Indexed: 01/23/2024] Open
Abstract
Hospital-acquired bacterial pneumonia (HABP) and ventilator-associated bacterial pneumonia (VABP) are common healthcare-associated infections linked to high morbidity and mortality. Gram-negative pathogens, such as Pseudomonas aeruginosa, exhibit multidrug resistance and are recognized as major public health concerns, particularly among critically ill patients with HABP/VABP. Ceftolozane/tazobactam is a novel combination antibacterial agent comprising ceftolozane (a potent antipseudomonal cephalosporin) and tazobactam (a β-lactamase inhibitor). Phase III trials have demonstrated non-inferiority of ceftolozane/tazobactam to comparators, leading to the approval of ceftolozane/tazobactam for the treatment of complicated urinary tract infections, complicated intra-abdominal infections, and nosocomial pneumonia. In this article, we review the clinical trial evidence and key real-world effectiveness data of ceftolozane/tazobactam for the treatment of serious healthcare-associated Gram-negative infections, focusing on patients with HABP/VABP.
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Affiliation(s)
- Ignacio Martin-Loeches
- Department of Intensive Care Medicine, Multidisciplinary Intensive Care Research Organization (MICRO), St. James's Hospital, Dublin, D08 NHY1, Ireland
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Barreto EF, Chang J, Bjergum MW, Gajic O, Jannetto PJ, Mara KC, Meade LA, Rule AD, Vollmer KJ, Scheetz MH. Adequacy of cefepime concentrations in the early phase of critical illness: A case for precision pharmacotherapy. Pharmacotherapy 2023; 43:1112-1120. [PMID: 36648390 PMCID: PMC10350476 DOI: 10.1002/phar.2766] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 12/07/2022] [Accepted: 12/14/2022] [Indexed: 01/18/2023]
Abstract
STUDY OBJECTIVE In critically ill patients, adequacy of early antibiotic exposure has been incompletely evaluated. This study characterized factors associated with inadequate cefepime exposure in the first 24 h of critical illness. DESIGN Prospective cohort study. SETTING Academic Medical Center. PATIENTS Critically ill adults treated with cefepime. Patients with acute kidney injury or treated with kidney replacement therapy or extracorporeal membrane oxygenation were excluded. INTERVENTION None. MEASUREMENTS A nonlinear mixed-effects pharmacokinetic (PK) model was developed to estimate cefepime concentrations for each patient over time. The percentage of time the free drug concentration exceeded 8 mg/L during the first 24 h of therapy was calculated (%ƒT>8; appropriate for the susceptible breakpoint for Pseudomonas aeruginosa). Factors predictive of low %ƒT>8 were explored with multivariable regression. MAIN RESULTS In the 100 included patients, a one-compartment PK model was developed with first-order elimination with covariates for weight and estimated glomerular filtration rate based on creatinine and cystatin C (eGFRSCr-CysC). The median (interquartile range) %ƒT>8 for cefepime in the first 24 h of therapy based on this model was 85% (66%, 100%). Less than 100% ƒT>8 during first 24 h of therapy occurred in 70 (70%) individuals. Lower Sequential Organ Failure Assessment score (p = 0.032) and higher eGFRSCr-CysC (p < 0.001) predicted a lower %ƒT>8. Central nervous system infection source was protective (i.e., associated with a higher %ƒT>8; p = 0.008). CONCLUSIONS During early critical illness, cefepime concentrations were inadequate in a significant proportion of patients. Antimicrobial optimization is needed to improve the precision of pharmacotherapy in the critically ill patients.
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Affiliation(s)
- Erin F. Barreto
- Department of Pharmacy, Mayo Clinic, Rochester, Minnesota, USA
| | - Jack Chang
- Department of Pharmacy Practice, Chicago College of Pharmacy, Pharmacometrics Center of Excellence, Midwestern University, Downers Grove, Illinois, USA
- Northwestern Medicine, Department of Pharmacy, Chicago, Illinois, USA
| | - Matthew W. Bjergum
- Department of Laboratory Medicine & Pathology, Mayo Clinic, Rochester, Minnesota, USA
| | - Ognjen Gajic
- Division of Pulmonary Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Paul J. Jannetto
- Department of Laboratory Medicine & Pathology, Mayo Clinic, Rochester, Minnesota, USA
| | - Kristin C. Mara
- Division of Clinical Trials and Biostatistics, Mayo Clinic, Rochester, Minnesota, USA
| | - Laurie A. Meade
- Anesthesia Clinical Research Unit, Mayo Clinic, Rochester, Minnesota, USA
| | - Andrew D. Rule
- Division of Nephrology and Hypertension, Mayo Clinic, Minnesota, USA
- Division of Epidemiology, Mayo Clinic, Rochester, Minnesota, USA
| | - Kathryn J. Vollmer
- Rutgers Institute for Pharmaceutical Industry Fellowships, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, New Jersey, USA
| | - Marc H. Scheetz
- Department of Pharmacy Practice, Chicago College of Pharmacy, Pharmacometrics Center of Excellence, Midwestern University, Downers Grove, Illinois, USA
- Northwestern Medicine, Department of Pharmacy, Chicago, Illinois, USA
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Roberts JA, Nicolau DP, Martin-Loeches I, Deryke CA, Losada MC, Du J, Patel M, Rizk ML, Paschke A, Chen LF. Imipenem/cilastatin/relebactam efficacy, safety and probability of target attainment in adults with hospital-acquired or ventilator-associated bacterial pneumonia among patients with baseline renal impairment, normal renal function, and augmented renal clearance. JAC Antimicrob Resist 2023; 5:dlad011. [PMID: 36880088 PMCID: PMC9985325 DOI: 10.1093/jacamr/dlad011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Accepted: 01/17/2023] [Indexed: 03/06/2023] Open
Abstract
Objectives To assess the relationship between renal function and efficacy/safety of imipenem/cilastatin/relebactam for the treatment of hospital-acquired/ventilator-associated pneumonia (HABP/VABP) from RESTORE-IMI 2 and determine the PTA. Methods Adults with HABP/VABP were randomized 1:1 to IV imipenem/cilastatin/relebactam 1.25 g or piperacillin/tazobactam 4.5 g every 6 h for 7-14 days. Initial doses were selected by CLCR and adjusted thereafter, as appropriate. Outcomes included Day 28 all-cause mortality (ACM), clinical response, microbiological response and adverse events. Population pharmacokinetic modelling and Monte Carlo simulations assessed PTA. Results The modified ITT population comprised those with normal renal function (n = 188), augmented renal clearance (ARC; n = 88), mild renal impairment (RI; n = 124), moderate RI (n = 109) and severe RI (n = 22). ACM rates were comparable between treatment arms among all baseline renal function categories. Clinical response rates were comparable between treatment arms for participants with RI and normal renal function but were higher (91.7% versus 44.4%) for imipenem/cilastatin/relebactam-treated versus piperacillin/tazobactam-treated participants with CLCR ≥250 mL/min (n = 21). Microbiologic response rates were comparable between treatment arms for participants with RI but higher among those treated with imipenem/cilastatin/relebactam in participants with CLCR ≥90 mL/min (86.6% versus 67.2%). Adverse events were comparable between treatment arms across renal function categories. Joint PTA was >98% for key pathogen MICs for susceptible pathogens (MIC ≤2 mg/L). Conclusions Prescribing information-defined dose adjustments in participants with baseline RI and full dosing of imipenem/cilastatin/relebactam 1.25 g every 6 h for participants with normal renal function or augmented renal clearance achieved sufficiently high drug exposures and favourable safety and efficacy profiles.
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Affiliation(s)
- Jason A Roberts
- Faculty of Medicine, Centre for Clinical Research, The University of Queensland, Brisbane, Australia.,Herston Infectious Diseases Institute (HeIDI), Metro North Health, Brisbane, Australia.,Departments of Pharmacy and Intensive Care Medicine, Royal Brisbane and Women's Hospital, Brisbane, Australia.,Division of Anesthesiology Critical Care Emergency and Pain Medicine, Nîmes University Hospital, University of Montpellier, Nîmes, France
| | - David P Nicolau
- Center for Anti-Infective Research & Development, Hartford Hospital, Hartford, CT, USA
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Elmassry MM, Colmer-Hamood JA, Kopel J, San Francisco MJ, Hamood AN. Anti- Pseudomonas aeruginosa Vaccines and Therapies: An Assessment of Clinical Trials. Microorganisms 2023; 11:916. [PMID: 37110338 PMCID: PMC10144840 DOI: 10.3390/microorganisms11040916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 03/27/2023] [Accepted: 03/29/2023] [Indexed: 04/03/2023] Open
Abstract
Pseudomonas aeruginosa is a Gram-negative opportunistic pathogen that causes high morbidity and mortality in cystic fibrosis (CF) and immunocompromised patients, including patients with ventilator-associated pneumonia (VAP), severely burned patients, and patients with surgical wounds. Due to the intrinsic and extrinsic antibiotic resistance mechanisms, the ability to produce several cell-associated and extracellular virulence factors, and the capacity to adapt to several environmental conditions, eradicating P. aeruginosa within infected patients is difficult. Pseudomonas aeruginosa is one of the six multi-drug-resistant pathogens (ESKAPE) considered by the World Health Organization (WHO) as an entire group for which the development of novel antibiotics is urgently needed. In the United States (US) and within the last several years, P. aeruginosa caused 27% of deaths and approximately USD 767 million annually in health-care costs. Several P. aeruginosa therapies, including new antimicrobial agents, derivatives of existing antibiotics, novel antimicrobial agents such as bacteriophages and their chelators, potential vaccines targeting specific virulence factors, and immunotherapies have been developed. Within the last 2-3 decades, the efficacy of these different treatments was tested in clinical and preclinical trials. Despite these trials, no P. aeruginosa treatment is currently approved or available. In this review, we examined several of these clinicals, specifically those designed to combat P. aeruginosa infections in CF patients, patients with P. aeruginosa VAP, and P. aeruginosa-infected burn patients.
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Affiliation(s)
- Moamen M. Elmassry
- Department of Biological Sciences, Texas Tech University, Lubbock, TX 79409, USA
| | - Jane A. Colmer-Hamood
- Department of Medical Education, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA
- Department of Immunology and Molecular Microbiology, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA
| | - Jonathan Kopel
- Department of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA
| | - Michael J. San Francisco
- Department of Biological Sciences, Texas Tech University, Lubbock, TX 79409, USA
- Honors College, Texas Tech University, Lubbock, TX 79409, USA
| | - Abdul N. Hamood
- Department of Immunology and Molecular Microbiology, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA
- Department of Surgery, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA
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Gao W, Patel YT, Zhang Z, Johnson MG, Fiedler-Kelly J, Bruno CJ, Rhee EG, Anda CD, Feng HP. Ceftolozane/Tazobactam Probability of Target Attainment in Patients With Hospital-Acquired or Ventilator-Associated Bacterial Pneumonia. J Clin Pharmacol 2023; 63:352-357. [PMID: 36201105 DOI: 10.1002/jcph.2165] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 09/30/2022] [Indexed: 11/08/2022]
Abstract
Probability of target attainment (PTA) analyses were conducted to support the recommended ceftolozane/tazobactam dosing regimens, adjusted for renal function, in patients with hospital-acquired/ventilator-associated bacterial pneumonia (HABP/VABP). Previously published population pharmacokinetic models describing the disposition of ceftolozane and tazobactam in plasma and epithelial lining fluid (ELF) in patients with HABP/VABP were used to simulate ceftolozane and tazobactam concentration-time profiles in plasma and ELF over the course of 14 days. The simulations were conducted for patients with normal renal function and for patients receiving adjusted doses for mild, moderate, and severe renal impairment. PTA was calculated using established pharmacokinetic/pharmacodynamic targets for ceftolozane and tazobactam. Across renal function groups, plasma PTA was 100% for ceftolozane and >99% for tazobactam; ELF PTA was >99% for ceftolozane and >87% for tazobactam. These results provided support for the currently recommended ceftolozane/tazobactam dosing regimens for HABP/VABP, which were efficacious and well tolerated in the Ceftolozane-Tazobactam Versus Meropenem for Treatment of Nosocomial Pneumonia (ASPECT-NP) trial.
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Affiliation(s)
- Wei Gao
- Merck & Co., Inc., Rahway, New Jersey, USA
| | - Yogesh T Patel
- Cognigen Corporation, Simulations Plus Company, Buffalo, New Jersey, USA
| | | | | | - Jill Fiedler-Kelly
- Cognigen Corporation, Simulations Plus Company, Buffalo, New Jersey, USA
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Exposure-Efficacy Analyses Support Optimal Dosing Regimens of Ceftolozane/Tazobactam in Participants with Hospital-Acquired/Ventilator-Associated Bacterial Pneumonia in ASPECT-NP. Antimicrob Agents Chemother 2022; 66:e0139921. [PMID: 35471040 PMCID: PMC9112930 DOI: 10.1128/aac.01399-21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
An exposure–efficacy analysis of the phase 3 ASPECT-NP trial was performed to evaluate the relationship between plasma exposure of ceftolozane and tazobactam and efficacy endpoints (primary: 28-day all-cause mortality; key secondary: clinical cure at test-of-cure visit) in adult participants with hospital-acquired or ventilator-associated bacterial pneumonia (HABP/VABP). Participants (N = 231) from the ceftolozane/tazobactam treatment group in the intention-to-treat population who had pharmacokinetic data available and relevant baseline lower respiratory tract (LRT) pathogen(s) susceptibility data were included. Population pharmacokinetic models were used to predict individual ceftolozane and tazobactam plasma exposure measures (percentage of the interdose interval with free drug concentrations above the MIC [%ƒT>MIC] and %ƒT above a threshold [%ƒT>CT = 1 μg/mL], respectively) associated with the last dose using the highest ceftolozane/tazobactam MIC for the relevant baseline LRT pathogens. Efficacy measures were comparable between the baseline LRT pathogens and across MIC cutoffs (1–8 μg/mL). Most participants (82%) had 99% ƒT>MIC for ceftolozane; 9% (N = 21/231) had 0% ƒT>MIC due to high MICs of the LRT pathogen (64–256 μg/mL). The %ƒT>MIC for ceftolozane exceeded 73% for all participants with baseline LRT pathogen(s) MIC ≤4 μg/mL. All 231 participants achieved the tazobactam pharmacokinetic/pharmacodynamic target of >20% ƒT>CT where CT = 1 μg/mL. For either efficacy endpoint, median ceftolozane %ƒT>MIC was 99% in participants achieving efficacy. No exposure–efficacy trend was observed for ceftolozane or tazobactam. These results further support the recommended ceftolozane/tazobactam dosing regimens evaluated in ASPECT-NP for patients with HABP/VABP.
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Honore PM, Redant S, Preseau T, Moorthamers S, Kaefer K, Barreto Gutierrez L, Attou R, Gallerani A, Boer W, De Bels D. Comparison between meropenem and ceftolozane/tazobactam: possible influence of CRRT. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2022; 26:15. [PMID: 34996512 PMCID: PMC8742339 DOI: 10.1186/s13054-021-03837-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 11/10/2021] [Indexed: 11/18/2022]
Affiliation(s)
- Patrick M Honore
- ICU Department, Centre Hospitalier Universitaire Brugmann-Brugmann University Hospital, Place Van Gehuchtenplein, 4, 1020, Brussels, Belgium.
| | - Sebastien Redant
- ICU Department, Centre Hospitalier Universitaire Brugmann-Brugmann University Hospital, Place Van Gehuchtenplein, 4, 1020, Brussels, Belgium
| | - Thierry Preseau
- ED Department, Centre Hospitalier Universitaire Brugmann, Brussels, Belgium
| | - Sofie Moorthamers
- ED Department, Centre Hospitalier Universitaire Brugmann, Brussels, Belgium
| | - Keitiane Kaefer
- ICU Department, Centre Hospitalier Universitaire Brugmann-Brugmann University Hospital, Place Van Gehuchtenplein, 4, 1020, Brussels, Belgium
| | | | - Rachid Attou
- ICU Department, Centre Hospitalier Universitaire Brugmann-Brugmann University Hospital, Place Van Gehuchtenplein, 4, 1020, Brussels, Belgium
| | - Andrea Gallerani
- ICU Department, Centre Hospitalier Universitaire Brugmann-Brugmann University Hospital, Place Van Gehuchtenplein, 4, 1020, Brussels, Belgium
| | - Willem Boer
- Intensive Care Department, Ziekenhuis Oost Limburgh, Campus St Jan, Genk, Belgium
| | - David De Bels
- ICU Department, Centre Hospitalier Universitaire Brugmann-Brugmann University Hospital, Place Van Gehuchtenplein, 4, 1020, Brussels, Belgium
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