Treatment of cellulitis with ceforanide

Area of Science:

• Infectious Diseases
• Pharmacology
• Bacteriology

Background:

• Cellulitis is a common bacterial skin infection requiring effective antibiotic treatment.
• Ceforanide is a cephalosporin antibiotic with activity against Gram-positive bacteria.
• Understanding ceforanide's efficacy and pharmacokinetic profile in cellulitis is crucial for clinical practice.

Purpose of the Study:

• To evaluate the clinical efficacy and safety of ceforanide in treating patients with cellulitis.
• To assess ceforanide drug concentrations in relation to minimum inhibitory concentrations (MICs) for common causative pathogens.
• To compare the in vitro bactericidal activity of ceforanide and penicillin against Streptococcus pyogenes.

Main Methods:

• Thirty-five patients diagnosed with cellulitis received intramuscular ceforanide (1 g every 12 hours).
• Clinical response was assessed, and adverse events were monitored.
• Serum drug concentrations were measured and compared to MICs for Streptococcus pyogenes and Staphylococcus aureus; in vitro killing assays were performed.

Main Results:

• A good clinical response was achieved in 33 out of 35 patients (94.3%).
• Adequate ceforanide concentrations, exceeding S. pyogenes MICs, were generally maintained.
• Satisfactory clinical outcomes were observed even when ceforanide concentrations were below S. aureus MICs; in vitro, ceforanide demonstrated comparable bactericidal activity to penicillin against S. pyogenes.

Conclusions:

• Intramuscular ceforanide is an effective treatment for cellulitis, achieving high clinical success rates.
• The drug appears effective even when concentrations are not consistently above S. aureus MICs, suggesting other factors may contribute to efficacy.
• Ceforanide exhibits potent bactericidal activity against S. pyogenes in vitro, comparable to penicillin.