Producing amorphous solid dispersions via co-precipitation and spray drying: impact to physicochemical and biopharmaceutical properties

AKP Mann, L Schenck, A Koynov… - Journal of …, 2018 - Elsevier
Many small-molecule active pharmaceutical ingredients (APIs) exhibit low aqueous
solubility and benefit from generation of amorphous dispersions of the API and polymer to …

Investigation of polymer/surfactant interactions and their impact on itraconazole solubility and precipitation kinetics for developing spray-dried amorphous solid …

TM Deshpande, H Shi, J Pietryka… - Molecular …, 2018 - ACS Publications
Methods were developed to systematically screen different polymer–surfactant combinations
for the purpose of enhancing amorphous active pharmaceutical ingredient (API) solubility …

Crystallinity: a complex critical quality attribute of amorphous solid dispersions

DE Moseson, LS Taylor - Molecular Pharmaceutics, 2023 - ACS Publications
Does the performance of an amorphous solid dispersion rely on having 100% amorphous
content? What specifications are appropriate for crystalline content within an amorphous …

Biorelevant dissolution method considerations for the appropriate evaluation of amorphous solid dispersions: are two stages necessary?

Z Wang, H Lou, TJ Dening, MJ Hageman - Journal of Pharmaceutical …, 2023 - Elsevier
Biorelevant dissolution testing has been widely used to better understand a drug or
formulation's behavior in the human gastrointestinal (GI) tract. The successful evaluation of …

Vacuum drum drying–a novel solvent-evaporation based technology to manufacture amorphous solid dispersions in comparison to spray drying and hot melt …

B Schönfeld, U Westedt, KG Wagner - International journal of …, 2021 - Elsevier
In this study, a novel solvent-evaporation based technology to manufacture amorphous solid
dispersions (ASDs) called vacuum drum drying (VDD) was assessed in comparison to the …

Processing impact on performance of solid dispersions

D Zhang, YC Lee, Z Shabani, C Frankenfeld Lamm… - Pharmaceutics, 2018 - mdpi.com
The development of a weakly basic compound is often challenging due to changes in pH
that the drug experiences throughout the gastrointestinal tract. As the drug transitions from …

Downstream processing of polymer-based amorphous solid dispersions to generate tablet formulations

B Démuth, ZK Nagy, A Balogh, T Vigh, G Marosi… - International journal of …, 2015 - Elsevier
Application of amorphous solid dispersions (ASDs) is considered one of the most promising
approaches to increase the dissolution rate and extent of bioavailability of poorly water …

The shelf life of ASDs: 1. Measuring the crystallization kinetics at humid conditions

F Wolbert, K Nikoleit, M Steinbrink… - Molecular …, 2022 - ACS Publications
Amorphous solid dispersions (ASDs), where an active pharmaceutical ingredient (API) is
dissolved in a polymer, are a favored formulation technique to achieve sufficient …

Hot melt extrusion: development of an amorphous solid dispersion for an insoluble drug from mini-scale to clinical scale

AM Agrawal, MS Dudhedia, E Zimny - Aaps Pharmscitech, 2016 - Springer
The objective of the study was to develop an amorphous solid dispersion (ASD) for an
insoluble compound X by hot melt extrusion (HME) process. The focus was to identify …

The influence of hydrogen bonding between different crystallization tendency drugs and PVPVA on the stability of amorphous solid dispersions

J Wu, G Van den Mooter - International Journal of Pharmaceutics, 2023 - Elsevier
Amorphous solid dispersion (ASD) is one of the formulation strategies for drugs displaying
low solubility and low oral bioavailability. In this study, high drug-loaded ASDs of drugs with …