Scientific and regulatory activities initiated by the US food and drug administration to foster approvals of generic dry powder inhalers: bioequivalence perspective

B Newman, A Babiskin, E Bielski, S Boc… - Advanced Drug Delivery …, 2022 - Elsevier
Regulatory science for generic dry powder inhalers (DPIs) in the United States (US) has
evolved over the last decade. In 2013, the US Food and Drug Administration (FDA) …

In vitro-in vivo correlation of cascade impactor data for orally inhaled pharmaceutical aerosols

MYT Chow, W Tai, RYK Chang, HK Chan… - Advanced Drug Delivery …, 2021 - Elsevier
In vitro-in vivo correlation is the establishment of a predictive relationship between in vitro
and in vivo data. In the context of cascade impactor results of orally inhaled pharmaceutical …

In Vitro Tests for Aerosol Deposition. VI: Realistic Testing with Different Mouth–Throat Models and In Vitro—In Vivo Correlations for a Dry Powder Inhaler, Metered …

X Wei, M Hindle, A Kaviratna, BK Huynh… - Journal of aerosol …, 2018 - liebertpub.com
Background: In vitro—in vivo correlations (IVIVC) for lung deposition may be established by
testing inhalers in vitro with realistic mouth–throat (MT) models and inhalation profiles (IP) …

Realizing Lobe-Specific Aerosol Targeting in a 3D-Printed In Vitro Lung Model

EL Kolewe, Y Feng, CA Fromen - Journal of aerosol medicine and …, 2021 - liebertpub.com
Background: Delivery of aerosols to isolated lobes of the lungs would be beneficial for
diseases that have lobe-specific effects, such as cancer, pneumonia, and chronic obstructive …

Can pharmacokinetic studies assess the pulmonary fate of dry powder inhaler formulations of fluticasone propionate?

G Hochhaus, MJ Chen, A Kurumaddali, U Schilling… - The AAPS journal, 2021 - Springer
In the context of streamlining generic approval, this study assessed whether
pharmacokinetics (PK) could elucidate the pulmonary fate of orally inhaled drug products …

Characterization of excipient enhanced growth (EEG) tobramycin dry powder aerosol formulations

A Hassan, D Farkas, W Longest, M Hindle - International journal of …, 2020 - Elsevier
Spray drying can be utilized to produce highly dispersible powder aerosol formulations.
However, these formulations are known to be hygroscopic, leading to potential solid-state …

Evaluation of bio-relevant mouth-throat models for characterization of metered dose inhalers

A Kaviratna, G Tian, X Liu, R Delvadia, S Lee… - AAPS PharmSciTech, 2019 - Springer
For inhalation drug characterization, the traditionally used USP induction port provides
limited in vivo predictive capability because it does not adequately mimic airway geometry …

Combined in vitro-in silico approach to predict deposition and pharmacokinetics of budesonide dry powder inhalers

CA Ruzycki, B Murphy, H Nathoo, WH Finlay… - Pharmaceutical …, 2020 - Springer
Purpose A combined in vitro–in silico methodology was designed to estimate
pharmacokinetics of budesonide delivered via dry powder inhaler. Methods Particle size …

Models of deposition, pharmacokinetics, and intersubject variability in respiratory drug delivery

AR Martin, CP Moore, WH Finlay - Expert opinion on drug delivery, 2018 - Taylor & Francis
Introduction: Aerosol drug delivery to the lungs via inhalation is widely used in the treatment
of respiratory diseases. The deposition pattern of inhaled particles within the airways of the …

Bioequivalence assessment of pharmaceutical aerosol products through IVIVC

D Sandell - Advanced Drug Delivery Reviews, 2021 - Elsevier
Many pharmaceutical developers of generic orally inhaled products (OIPs) are facing
significant issues in passing the regulatory requirement to show pharmacokinetic (PK) …