Two Dosages of Clarithromycin for Five Days, Amoxicillin/Clavulanate for Five Days or Penicillin V for Ten Days in Acute Group A Streptococcal Tonsillopharyngitis

Autor: Bülent Bozdogan, George D. Katopodis, Ioanna N. Grivea, Nicholas G. Beratis, Dimitra I Kritikou, George A. Syrogiannopoulos, Peter C Applebaum, Lois M. Ednie
Rok vydání: 2004
Předmět:
Zdroj: Pediatric Infectious Disease Journal. 23:857-865
ISSN: 0891-3668
DOI: 10.1097/01.inf.0000138080.74674.a2
Popis: Short course antimicrobial therapy is suggested for group A streptococcal tonsillopharyngitis.The bacteriologic and clinical efficacies of clarithromycin [30 or 15 mg/kg/day twice daily (b.i.d.)] or amoxicillin/clavulanate (43.8/6.2 mg/kg/day b.i.d.) for 5 days or penicillin V (30 mg/kg/day 3 times a day) for 10 days were compared. In a randomized, open label, parallel group, multicenter study, 626 children (2-16 years old) with tonsillopharyngitis were enrolled; 537 were evaluable for efficacy. Follow-up evaluations were performed at 4-8 and 21-28 days after therapy.At enrollment, 26% of the Streptococcus pyogenes isolates were clarithromycin-nonsusceptible. All regimens had an apparently similar clinical efficacy. The long term S. pyogenes eradication rates were 102 of 123 (83%) with amoxicillin/clavulanate and 88 of 114 (77%) with penicillin V. In the 30- and 15-mg/kg/day clarithromycin groups, eradication occurred in 71 of 86 (83%) and 59 of 80 (74%) of the clarithromycin-susceptible isolates (P = 0.33), and in 4 of 28 (14%) and 5 of 26 (19%) of the clarithromycin-resistant isolates, respectively (clarithromycin-susceptible versus -resistant, P0.0001). Both clarithromycin dosages were well-tolerated.In group A streptococcal tonsillopharyngitis, 5 days of clarithromycin or amoxicillin/clavulanate treatment had clinical efficacy comparable with that of 10 days of penicillin V treatment; however, amoxicillin/clavulanate and penicillin V were bacteriologically more effective than clarithromycin because of its failure to eradicate the clarithromycin-resistant S. pyogenes isolates. The 5-day clarithromycin regimens are not recommended for treatment of streptococcal tonsillopharyngitis in areas where in vitro resistance of group A streptococci to clarithromycin is common.
Databáze: OpenAIRE