Generic versus non-generic formulation of extended-release clarithromycin in patients with community-acquired respiratory tract infections: a prospective, randomized, comparative, investigator-blind, multicentre study.

Abstract:

BACKGROUND AND OBJECTIVE:There is a general concern about the use of multisource (generic) antibacterials in the clinical setting with registration based solely on bioequivalence data. In order to address this concern, two modified-release formulations of clarithromycin (i.e. the originator Klacid XL and the generic Klarithran MR) were compared in patients with acute community-acquired respiratory tract infections. METHODS:Patients presenting with tonsillopharyngitis, sinusitis or pneumonia were randomized to receive either of the test drugs provided they clinically qualified for empirical clarithromycin treatment. The study endpoints were clinical and bacteriological cure rates, tolerability and safety. The study was designed to test for non-inferiority with regard to cure rates. RESULTS:The main outcome of this study was that both agents had similar clinical (non-inferior) and bacteriological cure rates and demonstrated no difference in tolerability in patients. The study also demonstrated the clinical efficacy of clarithromycin when used as empirical treatment in patients with respiratory tract infections in community practice (i.e. 95% clinical cure rate). CONCLUSION:The clarithromycin extended-release multisource product (Klarithran MR) does not differ significantly from the originator (Klacid XL) and the clinical cure rate of the generic formulation is non-inferior to that of the originator. The two formulations are tolerated similarly.

journal_name

Clin Drug Investig

authors

Snyman JR,Schoeman HS,Grobusch MP,Henning M,Rabie W,Hira M,Parshotam K,Mithal Y,Singh S,Ramdas Z

doi

10.2165/00044011-200929040-00005

subject

Has Abstract

pub_date

2009-01-01 00:00:00

pages

265-74

issue

4

eissn

1173-2563

issn

1179-1918

pii

5

journal_volume

29

pub_type

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