JOURNAL ARTICLE
RANDOMIZED CONTROLLED TRIAL
RESEARCH SUPPORT, NON-U.S. GOV'T
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Pharmacokinetics of CIPRODEX otic in pediatric and adolescent patients.

OBJECTIVE: Describe the pharmacokinetics of ciprofloxacin and dexamethasone after administration of CIPRODEX Otic Suspension (CIP/DEX) into the middle ears of children.

DESIGN: Open-label, single-dose, pharmacokinetic studies, administering four drops of CIP/DEX instilled into each middle ear through the tympanostomy tubes immediately following tube placement. Blood was collected for 6h and analyzed for ciprofloxacin and dexamethasone concentrations using a validated liquid chromatography and tandem mass spectrometry (LC/MS/MS) method.

SETTING: The study was conducted through a referral pediatric otolaryngology practice with actual surgical procedures performed in an ambulatory care center.

PATIENTS: Twenty-five randomly selected patients, 1-14 years of age (mean age, 5 years), receiving tympanostomy tubes.

RESULTS: Peak ciprofloxacin plasma levels were observed at about 1h, with a mean C(max) of 1.33+/-0.96 ng/mL (range <0.5-3.45 ng/mL) and an estimated half-life of 3.0+/-1.2h. Peak dexamethasone plasma levels were observed within 2h with a mean C(max) of 0.90+/-1.04 ng/mL (range <0.05-5.10 ng/mL) and an estimated half-life of 3.9+/-2.9h.

CONCLUSION: These results demonstrated low systemic exposure of ciprofloxacin and dexamethasone following topical otic administration in pediatric patients.

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