In vitro characterization of nebulizer delivery of liposomal amphotericin B aerosols.

Journal Article (Journal Article)

Pharmaceutical aerosols have the potential to prevent pulmonary infectious diseases. Liposomal amphotericin B (LAMB, Ambisome, Astellas Pharma US, Deerfield, IL, USA) is approved as an intravenous infusion for empiric treatment of presumed fungal infections in neutropenic, febrile patients, as well as patients infected with Aspergillus, Cryptococcus, and other fungal pathogens. In this study, four different nebulizers were tested for their ability to deliver LAMB in aerodynamic droplet-size ranges relevant to lung deposition by an inertial sampling technique Mass median aerodynamic diameter (MMAD) and fine particle fraction percent <3.3 μm (FPF(3.3)) and <5.8 μm (FPF(5.8)) were determined by cascade impaction during a 2 min sampling period for each of three trials of all nebulizers. The MMADs for all nebulizers ranged from 1.72 ± 0.11 μm to 2.89 ± 0.12 μm; FPF(3.3) and FPF(5.8) were approximately 80% and 90%, respectively. Although all nebulizers appear acceptable for delivery of LAMB, the Pari LC Star and the Aeroeclipse II were considered the best in terms of delivery of aerosol efficiently and the proportion suitable for lung deposition. Additional research on pulmonary delivery and clinical tolerability is warranted.

Full Text

Duke Authors

Cited Authors

  • Alexander, BD; Winkler, TP; Shi, S; Dodds Ashley, ES; Hickey, AJ

Published Date

  • 2011

Published In

Volume / Issue

  • 16 / 6

Start / End Page

  • 577 - 582

PubMed ID

  • 21699390

Electronic International Standard Serial Number (EISSN)

  • 1097-9867

Digital Object Identifier (DOI)

  • 10.3109/10837450.2011.591803


  • eng

Conference Location

  • England