Abstract
ABSTRACTIntroduction: Infections caused by antibiotic-resistant pathogens, particularly Gram-negative bacteria, have become increasingly challenging to successfully treat. The beta-lactam antibiotic subclass, the carbapenems, have proven valuable for the treatment of such Gram-negative bacterial infections due to their spectrum and β-lactamase stability properties. However, all marketed carbapenems to date are parenterally administered to adult patients.Areas covered: One carbapenem, tebipenem-pivoxil (TBPM-PI), is an oral prodrug that was approved in Japan for pediatric use only in 2009. This review summarizes preclinical and clinical data for TBPM-PI, which is now in clinical development again this time for use as the first oral carbapenem available for treatment of bacterial infections in adult patients.Expert commentary: There is an urgent unmet need with an increasing prevalence of fluoroquinolone-resistant and ESBL-producing Gram-negative pathogens in the hospital and community setting. Carbapenems have traditionally been considered the drugs of choice for infections caused by enterobacteria producing ESBL and AmpC enzymes because they are not affected by these resistance mechanisms. The carbapenem, TBPM-PI, offers an oral option, particularly as step-down therapy, for use of this class in the treatment of serious Gram-negative infections.
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