title: Moxifloxacin in respiratory tract infections.
abstract: Moxifloxacin is a fourth-generation fluoroquinolone that has been shown to be effective against respiratory pathogens, including Gram-positive (Streptococcus pneumoniae), Gram-negative (Haemophilus influenzae, Moraxella catarrhalis), and atypical strains (Chlamydia pneumoniae, Mycoplasma pneumoniae), as well as multi-drug resistant S. pneumoniae, including strains resistant to penicillin, macrolides, tetracyclines, trimethoprim/sulfamethoxazole and some fluoroquinolones. Moxifloxacin is highly concentrated in lung tissue, and has demonstrated rapid eradication rates. The bioavailability and half-life of moxifloxacin provides potent bactericidal effects at a dose of 400mg/day. The ratio of the area under the concentration-time curve to MIC of moxifloxacin is the highest among the fluoroquinolones against S. pneumoniae. The clinical efficacy of moxifloxacin has been shown in controlled studies of community-acquired pneumonia (CAP), exacerbations of chronic bronchitis (CB) and acute bacterial rhinosinusitis. Moxifloxacin has demonstrated a faster resolution of symptoms in CAP and exacerbations of CB patients compared with first-line therapy. It has also demonstrated better eradication in exacerbations of CB compared with standard therapy, in particular the macrolides. Treatment guidelines should take into account the results of clinical trials with moxifloxacin in order to establish the role of this antimicrobial in the therapeutic arsenal against respiratory tract infections.
authors.affiliation: Servei de Pneumologia i Allergia Respiratoria (IDIBAPS), Red Respira RTIC 03/11, ISCIII, Hospital Clinic, Barcelona, Spain. marcm@clinic.ub.es
authors.forename: Marc
authors.initials: M
authors.lastname: Miravitlles
mesh_terms: D001372:Aza Compounds / Q000493:pharmacokinetics / Q000627:therapeutic use*; D002986:Clinical Trials as Topic / Q000706:statistics & numerical data; D017714:Community-Acquired Infections / Q000188:drug therapy* / Q000378:metabolism / Q000382:microbiology; D004352:Drug Resistance, Microbial / Q000502:physiology; D024841:Fluoroquinolones; D006801:Humans; D008826:Microbial Sensitivity Tests / Q000706:statistics & numerical data; D000077266:Moxifloxacin; D011804:Quinolines / Q000493:pharmacokinetics / Q000627:therapeutic use*; D012141:Respiratory Tract Infections / Q000188:drug therapy* / Q000378:metabolism / Q000382:microbiology
chemical_list: D001372:Aza Compounds; D024841:Fluoroquinolones; D011804:Quinolines; D000077266:Moxifloxacin