Short course therapy with ceftibuten versus azithromycin in pediatric streptococcal pharyngitis

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Abstract
To compare the safety and efficacy of a short course (5 days) of ceftibuten vs. azithromycin for 3 days for treatment of group A beta-hemolytic streptococcal (GABHS) pharyngitis in children. A multicenter, open label, prospective, randomized trial in which patients > or =3 to < or =16 years of age with proven GABHS pharyngitis were randomized to receive either once daily ceftibuten for 5 days or azithromycin for 3 days. Patients were evaluated for clinical outcomes and/or for adverse events at days 6 to 8, 13 to 15 and 33 to 35 posttherapy. Microbiologic assessments (pharyngeal cultures) were conducted at baseline and at each follow-up visit. A total of 132 patients in the ceftibuten arm and 116 in the azithromycin arm were enrolled in the safety analysis, whereas 126 and 101, respectively, were enrolled for ceftibuten and azithromycin efficacy evaluation. Clinical success (cure or marked amelioration) at days 6 to 8 was recorded in 98 and 94% in the 2 groups, respectively. In the bacteriologic efficacy analysis at 6 to 8 days, the GABHS strain was eradicated in 76% of the patients treated with ceftibuten and in 76% of those receiving azithromycin. At 33 to 35 days, 84% of the patients in the ceftibuten arm and 71% in the azithromycin arm were GABHS-negative, and bacteriologic relapse was observed in 4 and 7% of the ceftibuten and azithromycin cases, respectively. Both treatments were well-tolerated by all patients. Ceftibuten and azithromycin allow simple treatment schedules (i.e. once daily administration, short duration of treatment). The somewhat higher eradication rate recorded after ceftibuten administration is consistent with the overall superior bactericidal activity of beta-lactams compared with macrolides vs. GABHS in vitro.

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