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Cystic Fibrosis Aggregate Biofilm Model to Study Infection-relevant Gene Expression
Published on: April 18, 2025
New antimicrobial strategies in cystic fibrosis
Mireille van Westreenen1, Harm A W M Tiddens
1Department of Medical Microbiology & Infectious Diseases, Erasmus MC, University Medical Centre Rotterdam, Rotterdam, the Netherlands. m.vanwestreenen@erasmusmc.nl
Abstract:
With more antibiotic resistance and emerging pathogens in cystic fibrosis (CF) patients, the need for new strategies in the lifelong treatment of pulmonary infection has increased. Most of the focus is on chronic infection with Pseudomonas aeruginosa, which is still thought to be the main pathogen leading to advanced CF lung disease. Other bacterial species are also recognized in the pathogenesis of CF lung disease, even though their definitive role is not well established yet. Clearly, expansion of treatment options is urgently needed. This article focuses on recent developments in the field of new antimicrobial strategies for CF. It is clear that studies on new classes of antibiotics or antimicrobial-like drugs are scarce, and that most studies involve new (inhalation) formulations, new routes of delivery, or analogs of existing classes of antibiotics. Studies of new antibiotic-like drugs are, in most cases, in preclinical phases of development and only a few of these agents may reach the market. Importantly, new inhaled antibiotics, e.g. aztreonam, levofloxacin, and fosfomycin, and new, more efficient delivery systems such as dry powder inhalation and liposomes for current antibiotics are in the clinical phase of development. These developments will be of great importance in improving effective treatment and reducing the treatment burden for CF patients in the near future.
Insights
New inhaled antibiotics and advanced delivery systems offer hope for cystic fibrosis (CF) patients battling resistant lung infections. These emerging strategies aim to improve treatment efficacy and reduce patient burden.
Area of Science:
- Pulmonary Medicine
- Infectious Diseases
- Pharmacology
Background:
- Increasing antibiotic resistance and emerging pathogens in cystic fibrosis (CF) patients necessitate novel treatment strategies.
- Pseudomonas aeruginosa is a primary pathogen in CF lung disease, but other bacteria also contribute to pathogenesis.
- Current treatment options for CF pulmonary infections are limited, highlighting an urgent need for expansion.
Purpose of the Study:
- To review recent advancements in antimicrobial strategies for cystic fibrosis (CF) lung infections.
- To highlight new drug formulations, delivery routes, and antibiotic analogs for CF treatment.
- To assess the clinical development status of novel antimicrobial approaches for CF.
Main Methods:
- Review of current literature on antimicrobial strategies for CF.
- Focus on new formulations, delivery systems, and antibiotic analogs.
- Analysis of preclinical and clinical development phases of novel CF treatments.
Main Results:
- Development of new inhaled antibiotics (aztreonam, levofloxacin, fosfomycin) is in the clinical phase.
- Novel delivery systems, including dry powder inhalation and liposomes, are advancing for current antibiotics.
- Most new antibiotic-like drugs are in preclinical development, with few expected to reach the market.
Conclusions:
- Emerging inhaled antibiotics and advanced delivery systems show promise for improving CF treatment.
- These innovations have the potential to enhance treatment effectiveness and decrease the burden on CF patients.
- Continued research and development are crucial for addressing the evolving challenges of CF lung infections.
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