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Related Experiment Videos

Modulite: a simple solution to a difficult problem.

D A Lewis1, D Ganderton, B J Meakin

  • 1Vectura Ltd., Chippenham, UK. david.lewis@vectura.com

Respiration; International Review of Thoracic Diseases
|May 26, 2005
PubMed
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Developing hydrofluoroalkane (HFA)-based pressurized metered-dose inhalers (pMDIs) is challenging. Solution formulations offer a controllable approach, successfully applied to formoterol Modulite for improved stability and delivery.

Area of Science:

  • Pharmaceutical Technology
  • Drug Delivery Systems
  • Respiratory Medicine

Background:

  • Developing hydrofluoroalkane (HFA)-based pressurized metered-dose inhalers (pMDIs) presents challenges due to propellant property differences compared to chlorofluorocarbons (CFCs).
  • Traditional suspension formulations for pMDIs face limitations in controlling aerosol characteristics.

Purpose of the Study:

  • To explore solution formulations as an alternative to suspensions for HFA-based pMDIs.
  • To develop and characterize a formoterol Modulite solution formulation for improved inhalation therapy.

Main Methods:

  • Investigated the impact of formulation and device variables on cloud characteristics of solution aerosols.
  • Applied a novel solution formulation approach to develop a formoterol product.

Related Experiment Videos

  • Evaluated chemical stability, delivery performance, and clinical outcomes of the developed formulation.

    • Main Results:

    • Solution formulations allow controlled modulation of aerosol cloud characteristics.
    • The formoterol Modulite solution formulation demonstrated good chemical stability.
    • The new formulation exhibited favorable delivery performance and positive clinical results.

    Conclusions:

    • Solution formulations represent a viable strategy for developing advanced HFA-based pMDIs.
    • The formoterol Modulite solution formulation is a promising advancement in respiratory drug delivery.
    • This approach facilitates the formulation of various drugs, including steroids, in pMDIs.