title: Fexofenadine reduces nasal congestion in perennial allergic rhinitis.
abstract: BACKGROUND
  Nasal congestion is the predominant symptom in perennial allergic rhinitis (PAR), and it seems to be mainly related to the late-phase inflammatory events. The present pilot study aimed to evaluate the therapeutic effect exerted by fexofenadine in patients with PAR due to mite allergy.
  
  
  METHODS
  This study was a parallel, double-blind, randomized, three-arm (1:1:1), placebo-controlled study. Thirty-one subjects with PAR were enrolled and received double-blind medication: fexofenadine 120 or 180 mg, or placebo, once a day for 28 days.
  
  
  RESULTS
  The total symptom score was reduced by fexofenadine (both dosages) at V2 (P=0.007), whereas placebo did not modify it. Nasal congestion decreased after 1 week of treatment with fexofenadine 120 (P=0.027) and 180 (P=0.01), but not with placebo (P=NS). At V3, fexofenadine (both dosages) significantly reduced nasal congestion (P=0.011 and P=0.007, respectively), by placebo did not show any significant effect.
  
  
  CONCLUSIONS
  This pilot study represents the first evidence of the efficacy of fexofenadine in PAR, and also the control of the nasal congestion. We suggest performing larger trials to confirm these preliminary findings.
authors.affiliation: Allergy and Respiratory Diseases, Department of Internal Medicine, University of Genoa, Genoa, Italy.
authors.forename: G
authors.initials: G
authors.lastname: Ciprandi
authors.forename: C
authors.initials: C
authors.lastname: Cosentino
authors.forename: M
authors.initials: M
authors.lastname: Milanese
authors.forename: C
authors.initials: C
authors.lastname: Mondino
authors.forename: G W
authors.initials: GW
authors.lastname: Canonica
mesh_terms: D000293:Adolescent; D000328:Adult; D000818:Animals; D004305:Dose-Response Relationship, Drug; D004311:Double-Blind Method; D005260:Female; D006634:Histamine H1 Antagonists / Q000008:administration & dosage / Q000627:therapeutic use*; D006801:Humans; D008297:Male; D008875:Middle Aged; D008925:Mites; D009297:Nasal Mucosa / Q000187:drug effects*; D010865:Pilot Projects; D012221:Rhinitis, Allergic, Perennial / Q000188:drug therapy* / Q000209:etiology; D012912:Sneezing / Q000187:drug effects; D016593:Terfenadine / Q000008:administration & dosage / Q000031:analogs & derivatives* / Q000627:therapeutic use*; D016896:Treatment Outcome
chemical_list: D006634:Histamine H1 Antagonists; D016593:Terfenadine; C093230:fexofenadine