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Iclaprim: a novel dihydrofolate reductase inhibitor for skin and soft tissue infections
Andrew Morgan1, Christine Cofer, Dennis L Stevens
1Veterans Affairs Medical Center, Boise, Idaho, USA and, Idaho State University School of Pharmacy, Pocatello, Idaho 83702, USA.
Abstract:
Antibiotic resistance is an ever-increasing concern in the treatment of severe skin and skin-structure infections, pneumonia, bacteremia and other serious infections caused by methicillin-resistant Staphylococcus aureus, vancomycin-resistant S. aureus, group A Streptococcus and vancomycin-resistant Enterococcus. In this review, we summarize the current status of both US FDA-approved and investigational agents aimed at this group of pathogens. We also describe, in detail, the chemistry, mechanism of action, pharmacokinetic properties and spectrum of microbiological activity of iclaprim, a novel dihydrofolate reductase inhibitor recently awarded fast-track approval status by the FDA. Finally, we review the clinical efficacy of iclaprim compared with linezolid for skin and skin-structure infections as demonstrated in Phase III randomized, controlled trials, and comment on its potential role in the treatment of other severe infections with drug-resistant Gram-positive pathogens.
Insights
This review covers new antibiotics for drug-resistant infections like MRSA and VRE. It details iclaprim, a novel agent, and its efficacy against skin infections.
Area of Science:
- Pharmacology and Infectious Diseases
Background:
- Antibiotic resistance is a growing threat, complicating treatment of severe infections caused by pathogens like methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant Enterococcus (VRE).
- Existing treatment options are limited for infections caused by these multidrug-resistant Gram-positive bacteria.
Purpose of the Study:
- To review current and investigational agents targeting resistant Gram-positive pathogens.
- To provide a detailed analysis of iclaprim, a novel dihydrofolate reductase inhibitor.
- To evaluate the clinical efficacy of iclaprim for skin and skin-structure infections.
Main Methods:
- Literature review of US FDA-approved and investigational agents.
- Detailed description of iclaprim's chemistry, mechanism of action, pharmacokinetics, and spectrum.
- Analysis of Phase III randomized, controlled trials comparing iclaprim to linezolid for skin infections.
Main Results:
- Iclaprim is a novel dihydrofolate reductase inhibitor with fast-track approval status.
- Clinical trials demonstrated iclaprim's efficacy in treating skin and skin-structure infections.
- The drug shows potential for treating other severe infections caused by drug-resistant Gram-positive pathogens.
Conclusions:
- Iclaprim represents a promising new therapeutic option for infections caused by antibiotic-resistant Gram-positive bacteria.
- Further evaluation may establish its role in treating a broader range of severe infections.
- The development of novel agents like iclaprim is crucial to combatting the rising threat of antibiotic resistance.
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