Bioequivalence of 2 intravenous amiodarone formulations in healthy participants.
J Clin Pharmacol
; 49(4): 407-15, 2009 Apr.
Article
en En
| MEDLINE
| ID: mdl-19246726
ABSTRACT
Intravenous amiodarone is an effective agent for the treatment of recurrent ventricular fibrillation and hemodynamically unstable ventricular tachycardia. PM101 is a new formulation of intravenous amiodarone that uses a cyclodextrin to maintain amiodarone in the aqueous phase. Eighty-eight participants were enrolled in this randomized, double-blind, crossover, bioequivalence clinical study and were treated with single doses (150 mg) of PM101 and intravenous amiodarone separated by a washout period of at least 42 days. Venous blood samples were taken periodically during the first 72 hours after dosing to determine standard pharmacokinetic parameters. The amiodarone plasma concentration-time curve observed with both formulations was virtually identical, as was the 72-hour area under the curve (AUC0-72). Similar equivalence was seen for desethylamiodarone, the active metabolite of amiodarone. The geometric ratios of the AUC0-72 for amiodarone and desethylamiodarone were 1.03 (95% confidence interval [CI], 1.00-1.06) and 1.01 (0.99-1.03), respectively. Similar geometric ratios and CIs were found for maximum plasma concentration (Cmax) and for AUC extrapolated to infinity (AUC0-infinity). Because the ratios and their CI fell between the limits of 0.8 and 1.25, bioequivalence of these 2 formulations was established. No safety concerns unique to PM101 were identified.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Amiodarona
/
Antiarrítmicos
Tipo de estudio:
Clinical_trials
/
Prognostic_studies
Límite:
Adolescent
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Adult
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Female
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Humans
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Male
/
Middle aged
Idioma:
En
Revista:
J Clin Pharmacol
Año:
2009
Tipo del documento:
Article
País de afiliación:
Estados Unidos