title: New aspects of developing a dry powder inhalation formulation applying the quality-by-design approach.
abstract: The current work outlines the application of an up-to-date and regulatory-based pharmaceutical quality management method, applied as a new development concept in the process of formulating dry powder inhalation systems (DPIs). According to the Quality by Design (QbD) methodology and Risk Assessment (RA) thinking, a mannitol based co-spray dried formula was produced as a model dosage form with meloxicam as the model active agent. The concept and the elements of the QbD approach (regarding its systemic, scientific, risk-based, holistic, and proactive nature with defined steps for pharmaceutical development), as well as the experimental drug formulation (including the technological parameters assessed and the methods and processes applied) are described in the current paper. Findings of the QbD based theoretical prediction and the results of the experimental development are compared and presented. Characteristics of the developed end-product were in correlation with the predictions, and all data were confirmed by the relevant results of the in vitro investigations. These results support the importance of using the QbD approach in new drug formulation, and prove its good usability in the early development process of DPIs. This innovative formulation technology and product appear to have a great potential in pulmonary drug delivery.
authors.affiliation: Institute of Drug Regulatory Affairs, University of Szeged, Faculty of Pharmacy, Szeged, Hungary. Electronic address: edinapallagi@hotmail.com.
authors.forename: Edina
authors.initials: E
authors.lastname: Pallagi
authors.affiliation: Department of Pharmaceutical Technology, University of Szeged, Faculty of Pharmacy, Szeged, Hungary.
authors.forename: Keyhaneh
authors.initials: K
authors.lastname: Karimi
authors.affiliation: Department of Pharmaceutical Technology, University of Szeged, Faculty of Pharmacy, Szeged, Hungary.
authors.forename: Rita
authors.initials: R
authors.lastname: Ambrus
authors.affiliation: Department of Pharmaceutical Technology, University of Szeged, Faculty of Pharmacy, Szeged, Hungary.
authors.forename: Piroska
authors.initials: P
authors.lastname: Szabó-Révész
authors.affiliation: Institute of Drug Regulatory Affairs, University of Szeged, Faculty of Pharmacy, Szeged, Hungary.
authors.forename: Ildikó
authors.initials: I
authors.lastname: Csóka
mesh_terms: D000280:Administration, Inhalation; D002626:Chemistry, Pharmaceutical / Q000379:methods / Q000592:standards*; D004339:Drug Compounding; D015195:Drug Design; D058995:Dry Powder Inhalers / Q000379:methods / Q000592:standards*; D008353:Mannitol / Q000138:chemical synthesis / Q000592:standards*; D011786:Quality Control
chemical_list: D008353:Mannitol
keywords: Dry powder inhalation; Meloxicam; Microcomposite; Pulmonary administration; Quality by design; Risk assessment