Abstract:
BACKGROUND:Safety concerns for fluoroquinolones exist from animal studies demonstrating cartilage injury in weight-bearing joints, dependent on dose and duration of therapy. For children treated with levofloxacin or comparator in randomized, prospective, comparative studies for acute otitis media and community-acquired pneumonia, this 5-year follow-up safety study was designed to assess the presence/absence of cartilage injury. METHODS:Children enrolled in treatment studies were also enrolled in a 1-year follow-up safety study, which; focused on musculoskeletal adverse events (MSAE). Those with persisting MSAEs, protocol-defined musculoskeletal disorders, or of concern to the Data Safety and Monitoring Committee were requested to enroll in four additional years of follow-up, the subject of this report. RESULTS:Of the 2233 subjects participating in the 12-month follow-up study, 124 of 1340 (9%) of the levofloxacin subjects, and 83 of 893 (9%) of the comparator subjects were continued for 5-year posttreatment assessment. From children identified with an MSAE during years 2 through 5 posttreatment, the number that were "possibly related" to drug therapy was equal for both arms: 1 of 1340 for levofloxacin and 1 of 893 for comparator. Of all cases of MSAE assessed by the Data Safety and Monitoring Committee at 5 years' posttreatment, no case was assessed as "likely related" to study drug. CONCLUSIONS:With no clinically detectable difference between levofloxacin- and comparator-treated children in MSAEs presenting between 1 and 5 years in these safety studies, risks of cartilage injury with levofloxacin appear to be uncommon, are clinically undetectable during 5 years, or are reversible.
journal_name
Pediatricsjournal_title
Pediatricsauthors
Bradley JS,Kauffman RE,Balis DA,Duffy CM,Gerbino PG,Maldonado SD,Noel GJdoi
10.1542/peds.2013-3636subject
Has Abstractpub_date
2014-07-01 00:00:00pages
e146-53issue
1eissn
0031-4005issn
1098-4275pii
peds.2013-3636journal_volume
134pub_type
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