Systematic and quantitative analyses of hollow fiber model of Mycobacterium abscessus lung disease studies and new dosing recommendations
Abstract
Guideline-based combination therapy achieves sputum culture conversion rates in 23%-34% of patients with Mycobacterium abscessus-complex lung disease. Thus, new therapies are needed. We performed a systematic review to validate and benchmark the hollow fiber system model of M. abscessus lung disease for drug development. We performed a literature search to identify all published hollow fiber system pharmacokinetic-pharmacodynamic studies. Preferred Reporting Items for Systematic Reviews and Meta-Analyses was used for bias minimization. A total of 12 studies were identified. The average quality score was 13.7 out of 21. Eight were monotherapy (exposure-effect and dose-fractionation), one double β-lactam, and three guideline-based therapy studies. For omadacycline and imipenem, hollow fiber system data were accompanied by clinical real-world evidence confirmation. Microbial kill was always terminated by antimicrobial resistance. We used quantitative analyses to rank drugs' efficacy based on CFU/mL kill below day 0 bacterial burden normalized to multi-drug guideline-based therapy kill. The highest-ranked drugs were sulbactam-durlobactam-ceftriaxone (177-fold), epetraborole (15-fold), and omadacycline (7-fold) better than guideline-based therapy. We used the target exposures identified in the systematic analysis in Monte Carlo experiments to identify optimal doses for inhaled formulations. The optimal inhalational dose of imipenem was 250 mg/day, for tigecycline 4 mg/day, for…
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