NDLI: Preparation and in Vivo Evaluation of a Dry Powder for Inhalation of Capreomycin

Content Provider	Springer Nature Link
Author	Fiegel, Jennifer Garcia Contreras, Lucila Thomas, Matthew VerBerkmoes, Jarod Elbert, Katharina Hickey, Anthony Edwards, David
Copyright Year	2007
Abstract	To develop an aerosol system for efficient local lung delivery of a tuberculostatic drug.The antibiotic, capreomycin sulfate, was spray dried to form a dry powder aerosol. The chemical content and physical properties of resulting particles were assessed under various storage conditions. Plasma concentrations of capreomycin after insufflation into guinea pigs were evaluated at three doses, and compared to IV and IM administration of a capreomycin solution.Dry powder aerosols containing capreomycin were formulated to enable efficient delivery of large drug masses to the lungs of guinea pigs. Aerosols loaded with 73% CS were shown to possess good aerosolization properties and physical–chemical stability for up to 3 months at room temperature. Upon insufflation into guinea pigs, the amount of CS reaching the bloodstream was significantly lower compared to IV or IM administration, but resulted in a significantly longer drug half-life.The results indicate that large doses of capreomycin in dry powder form can be efficiently delivered to the lungs of guinea pigs, which may result in high local drug exposure but significantly reduced systemic exposure as suggested by plasma concentrations in the present studies. These systems have considerable potential to provide more effective therapy for MDR-TB
Starting Page	805
Ending Page	811
Page Count	7
File Format	PDF
ISSN	07248741
Journal	Pharmaceutical Research
Volume Number	25
Issue Number	4
e-ISSN	1573904X
Language	English
Publisher	Springer US
Publisher Date	2007-07-27
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	aerosols antibiotics insufflation pulmonary drug delivery tuberculosis Biomedical Engineering Medical Law Biochemistry Pharmacy Pharmacology/Toxicology
Content Type	Text
Resource Type	Article
Subject	Organic Chemistry Pharmacology Molecular Medicine Pharmacology (medical) Biotechnology Pharmaceutical Science

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