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DFE Pharma
Spray drying lactose from organic solvent suspensions for aerosol delivery to the lungs
Lactose is widely used as an approved excipient for dry powder inhaler (DPI) products. Spray drying technique is a rapid method for converting a liquid feed into inhalable dried particles. However, spray-dried (SD) lactose powders produced from solutions are mostly amorphous and particularly…
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Development and Characterization of Pullulan-based Orally Disintegrating Films Containing Amlodipine…
The aim of this study was to prepare pullulan-based orally disintegrating films (ODFs) containing amlodipine besylate, an anti-hypertensive drug, by the solvent casting method. For this purpose, nine different ODF formulations (F1-F9) were prepared by using different plasticizers (glycerol,…
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Continuous twin screw granulation: Robustness of lactose/MCC-based formulations
In recent years, significant progress has been made in the field of continuous twin screw granulation. However, only limited knowledge is currently available on the impact of active pharmaceutical ingredient (API) properties on granule quality and processability. In this study, the response behavior…
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Introduction of the energy to break an avalanche as a promising parameter for powder flowability…
Dynamic avalanche testing is a newer method useful even with cohesive powder samples. To evaluate flow properties of pharmaceutical powder excipients, break energy (BE) is introduced as a new promising avalanche parameter. Conventional pharmacopoeial methods and an annular shear cell were utilized…
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Quantification of surface composition and surface structure of inhalation powders using TOF-SIMS
A multivariate TOF-SIMS methodology has been developed and applied to quantify surface composition and chemical distribution for dry powder blends. Surface properties are often critical to the behavior of powder formulations, especially in the case of dry powders for inhalation, as surface…
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Tabletting Solid Dispersions of Bicalutamide Prepared Using Ball-milling or Supercritical Carbon…
The studies were aimed at formulating tablets containing bicalutamide-PVP K-29/32 solid dispersions and accessing the interrelationships between the properties of obtained binary systems in the form of powder and compacts. The effect of the compression of the solid dispersions obtained by either…
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A Precise Prediction Method for the Properties of API-Containing Tablets Based on Data from Placebo…
We previously reported a novel method for the precise prediction of tablet properties (e.g., tensile strength (TS)) using a small number of experimental data. The key technique of this method is to compensate for the lack of experimental data by using data of placebo tablets collected in a database.…
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Sublingual tablets containing spray-dried carvedilol-loaded nanocapsules: development of an…
The aim of this study was to propose the use of spray-dried mucoadhesive carvedilol-loaded nanocapsules in the formulation of sublingual tablets. There is no previous report describing the preparation of tablets containing spray-dried nanocapsules or tablets containing nanocapsules, neither prepared…
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A shear cell study on oral and inhalation grade lactose powders
Shear cell tests have been conducted on twenty different lactose powders, most of which commercially available for oral or inhalation purposes, spanning a wide range of particle sizes, particle morphologies, production processes. The aims of the investigation were: i) to verify the reliability of…
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In-line temperature measurement to improve the understanding of the wetting phase in twin-screw wet…
Wetting is the initial stage of wet granulation processes during which the first contact between the powder and the liquid occurs. Wetting is a critical step to allow granule growth and consolidation, but also to ensure uniform active pharmaceutical ingredient (API) distribution over all granule…
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