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A Multicenter, Randomized, Double-Blind, Double-Dummy Study Of Azithromycin SR Versus Amoxicillin For The Treatment Of Strep Throat In Children

Phase 3
Completed
Conditions
Tonsillitis
Interventions
Registration Number
NCT00643149
Lead Sponsor
Pfizer
Brief Summary

The objective was to determine if a single 60 mg/kg dose of azithromycin SR was as safe and effective as a 10-day regimen of amoxicillin (45 mg/kg/day, given in divided doses every 12 hours) when used to treat children with strep throat.

Detailed Description

Not available

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
693
Inclusion Criteria

Patients who had evidence of acute pharyngitis/tonsillitis based on erythematous pharyngeal mucosa or thick exudate covering the pharynx and tonsillar area, and at least one of the following signs or symptoms were included: sore/scratchy throat; pain on swallowing; chills and/or fever cervical adenopathy; scarlet fever rash on the face and skin folds, or red tongue with prominent papillae ("strawberry tongue"). Subjects were required to have a positive rapid antigen detection test (RADT) or a positive culture of the pharynx or tonsils for GABHS.

Exclusion Criteria

Patients were excluded if they had previously diagnosed disease(s) of immune function or treatment with any systemic antibiotic within the previous 7 days.

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
1amoxicillin-
2azithromycin SR-
Primary Outcome Measures
NameTimeMethod
Bacteriologic response (eradication or persistence) at the Test of Cure (TOC) visit in the Bacteriologic Per Protocol populationTOC visit (Day 24-28)
Secondary Outcome Measures
NameTimeMethod
Bacteriologic eradication rate at the Long-Term Follow-Up (LTFU) visitLTFU Visit (Day 38-45)
Clinical response (clinical cure or failure) at the TOC visit in the Bacteriologic Per Protocol populationTOC Visit (Day 24-28)
Clinical response (cure or relapse) at the LTFU visitLTFU Visit (Day 38-45)
Pathogen susceptibility versus bacteriologic responseNot reported
Adverse events (AEs) were assessed for all treated subjectsContinuous
Vital signs and physical examinations were recordedBaseline and as necessary
Clinical laboratory testing (hematology and blood chemistry)As necessary
Azithromycin serum concentrations were determined for patients who vomited within 30 minutes of receiving their azithromycin SR/placebo doseDay 1

Trial Locations

Locations (1)

Pfizer Investigational Site

🇮🇳

Mumbai, Maharashtra, India

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