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Published on: February 23, 2014
New therapies for pneumococcal meningitis
1Department of Internal Medicine, Inselspital, Bern, Switzerland. pcottagn@insel.ch
Abstract:
The treatment of pneumococcal meningitis remains a major challenge, as reflected by the continued high morbidity and case fatality of the disease. The worldwide increase of penicillin-resistant pneumococci and more recently cephalosporin- and vancomycin-tolerant pneumococci has jeopardised the efficacy of standard treatments based on extended spectrum cephalosporins alone or in combination with vancomycin. This review provides a summary of newly developed antibiotics tested in the rabbit meningitis model. In particular, newer beta-lactam monotherapies (cefepime, meropenem, ertapenem), recently developed quinolones (garenoxacin, gemifloxacin, gatifloxacin, moxifloxacin) and a lipopeptide antibiotic (daptomycin) are discussed. A special emphasis is placed on the potential role of combination treatments with some of the new compounds, which are of interest based on the background of increasing resistance problems due to their often synergistic activity in the rabbit model of pneumococcal meningitis.
Insights
New antibiotics show promise for treating pneumococcal meningitis, a challenging infection. Combination therapies are particularly effective against resistant bacteria in animal models.
Area of Science:
- Infectious Diseases
- Microbiology
- Pharmacology
Background:
- Pneumococcal meningitis presents significant treatment challenges due to high morbidity and mortality.
- Increasing resistance to penicillin, cephalosporins, and vancomycin compromises standard antibiotic efficacy.
- Existing treatments are threatened by the rise of drug-tolerant pneumococcal strains.
Purpose of the Study:
- To review newly developed antibiotics for treating pneumococcal meningitis.
- To evaluate the efficacy of novel monotherapies and combination treatments.
- To address the growing challenge of antibiotic resistance in pneumococcal meningitis.
Main Methods:
- Testing of new antibiotics in a rabbit meningitis model.
- Evaluation of newer beta-lactam monotherapies (cefepime, meropenem, ertapenem).
- Assessment of novel quinolones (garenoxacin, gemifloxacin, gatifloxacin, moxifloxacin) and daptomycin.
- Investigation of synergistic activity in combination treatments.
Main Results:
- Several new beta-lactams, quinolones, and daptomycin were tested.
- Newer agents demonstrated potential in preclinical models.
- Combination therapies showed synergistic activity against resistant strains in the rabbit model.
Conclusions:
- Novel antibiotics offer potential alternatives for pneumococcal meningitis treatment.
- Combination therapies may be crucial for overcoming increasing antibiotic resistance.
- Further research is warranted to translate these findings to clinical practice.
Related Concept Videos
Bacterial Meningitis II: Pathophysiology
Pneumonia IV: Management
Bacterial Pneumonia Treatment
For bacterial pneumonia, antibiotics serve as the cornerstone of therapy. Initial treatment often begins with empirical antibiotics, tailored to the anticipated causative organism and adjusted based on culture results. Key antibiotic choices include:
Bacterial Meningitis I: Introduction
Bacterial Meningitis
Cryptococcal Meningitis
Atypical Pneumonia

