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Dry Powder Inhalers (DPI)
The Influence of Relative Humidity and Storage Conditions on the Physico-chemical Properties of…
Dry powder inhalers (DPIs) are favorable devices for the delivery of dry formulations to the lungs; still, they largely fail to deliver higher doses of active pharmaceutical ingredient (API) to the lower airways. Addition of fine particles of excipient (fines) to the blend of API and carrier was…
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Understanding the Importance of Capsules in Dry Powder Inhalers
Pulmonary drug delivery is currently the focus of research and development because of its potential to produce maximum therapeutic benefit to patients by directing the drug straight to the lung disease site. Among all the available delivery options, one popular, proven and convenient inhaler device…
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Lipid-microparticles for pulmonary delivery of active pharmaceutical ingredients: Impact of lipid…
Spray-drying is an extensively used technology for engineering inhalable particles. Important technical hurdles are however experienced when lipid-based excipients (LBEs) are spray-dried. Stickiness, extensive wall deposition, or simply inability to yield a solid product have been associated to the…
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Surface energy considerations in ternary powder blends for inhalation
The need for optimisation of DPI formulations is a main research motivation in respiratory drug delivery. Well-established formulations like carrier-based blends still show a lack of efficiency. The addition of extrinsic fine excipients is extensively discussed since decades, supported by a wide…
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RespiCellTM: An Innovative Dissolution Apparatus for Inhaled Products
To overcome some of the shortfalls of the types of dissolution testing currently used for pulmonary products, a new custom-built dissolution apparatus has been developed. For inhalation products, the main in vitro characterisation required by pharmacopoeias is the deposition of the active…
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Thin-film freeze-drying of a bivalent Norovirus vaccine while maintaining the potency of both…
A bivalent Norovirus vaccine candidate has been developed that contains Norovirus strain GI.1 Norwalk-virus like particles (VLP) and strain GII.4 Consensus VLPadsorbed on aluminum (oxy)hydroxide. The Norwalk and Consensus antigens have different stability profiles, making it challenging to prepare a…
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Natural and bioinspired excipients for dry powder inhalation formulations
Pulmonary drug delivery can have several advantages over other administration routes, in particular when using dry powder formulations. Such dry powder inhalation formulations generally include natural and bio-inspired excipients, which, among other purposes, are used to improve dosing…
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Improved Bioavailability with Dry Powder Cannabidiol Inhalation: A Phase 1 Clinical Study
Oral cannabidiol (CBD) is approved by the Food and Drug Administration (FDA) to treat patients with Dravet and Lennox-Gastaut syndromes, and tuberous sclerosis complex. The therapeutic potential of oral CBD formulations is limited by extensive first-pass hepatic metabolism. Following oral…
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Development of a dry powder for inhalation of nanoparticles codelivering cisplatin and ABCC3 siRNA…
Background: The current study sought to formulate a dry powder inhalant (DPI) for pulmonary delivery of lipopolymeric nanoparticles (LPNs) consisting of cisplatin and siRNA for multidrug-resistant lung cancer. siRNA against ABCC3 gene was used to silence drug efflux promoter.
Results & …
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Considerations for Dosing Accuracy in a New Carrier for Dry Powder Inhalation
Inhalation drug delivery methods are attractive, noninvasive routes when rapid onset of action, minimal side effects and excellent bioavailability are desired. However, not many drugs are administered this way and accurate dosing can be a challenge.
What makes dosing problematic is the very small…
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