13. September 2018
The study aimed at investigating the potential of spray drying method for encapsulation of protein drugs into solid lipid microparticles (MP) and evaluating effects of excipients on encapsulation and release of protein from MP. After transformation of model protein insulin to insulin-phospholipid complex, it was dissolved together with lipid excipients in organic solvent, which was spray-dried to form solid lipid MP. Polymeric MP with D, L-lactic-co-glycolic acid (PLGA) were prepared similarly....
07. May 2018
The aim of this research was to design and evaluate a hydrophilic matrix system for sustained release of glipizide, a weakly acidic poor soluble drug. A combination of inclusion complexation and microenvironmental pH modification techniques was utilized to improve the dissolution and pH-independent release of glipizide. Hydroxypropyl-β-cyclodextrin (HP-β-CD) was used as the complexation agent while sodium citrate and magnesium oxide (MgO) were used as model pH modifiers. The hydrophilic...
25. April 2018
Parenteral sustained release systems for proteins which provide therapeutic levels over a longer period avoiding frequent administration, which preserve protein stability during manufacturing, storage and application and which are biodegradable and highly biocompatible in the body are intensively sought after. The aim of this study was to generate and study mannitol core microparticles loaded with a monoclonal antibody IgG1 and coated with lipid either hard fat or glyceryl stearate at different...
05. March 2018
This study presents a framework for process and product development on a continuous direct compression manufacturing platform. A challenging sustained release formulation with high content of a poorly flowing low density drug was selected. Two HPMC grades were evaluated as matrix former: standard Methocel CR and directly compressible Methocel DC2. The feeding behavior of each formulation component was investigated by deriving feed factor profiles.
10. November 2017
Mucoadhesive formulations are well known for the delivery of drugs via the mucosal membrane of oral (sub- lingual, buccal and gingival), rectum, nose, eyes, and vagi- na. Among the various drug delivery approaches, the buc- cal mucosa delivery system o ers several bene ts like easy accessibility, patient compliance, a relatively large surface area of absorption for drug molecules, reduced gastric ir- ritation and simple delivery devices.
03. April 2017
ABSTRACT The aim of the present work was to develop and evaluate sustained release colon targeted micropellets of lornoxicam in order to achieve release of the drug at colon which could result in enhanced local absorption and thereby improved bio-availability. The present worker prepared micropellets of lornoxicam in nine batches using pure drug, DCP, PVPK-30 and different ratios of HPMCK-4M taking into account the direct pelletization technique. Resulted micropellets were illed in capsules and...
04. March 2017
Abstract Bacterial resistance to various antibiotics has been accelerated in recent years. Bacteriophages (phages) are natural particles that can attack bacteria. Phages can be used selectively for each particular strain. The best way for dealing with superficial infections is topical application of the drug. One of the best ways is the use of water-based gels, such as hydroxy propyl methyl cellulose (HPMC) based gels. In addition to sustained drug release properties of the gel base, HPMC...
25. February 2017
Abstract Halloysite nanotubes, a biocompatible nanomaterial of 50–60 nm diameter and ca. 15 nm lumen, can be used for loading, storage and sustained release of drugs either in its pristine form or with additional polymer complexation for extended release time. This study reports the development composite tablets based on 50 wt.% of the drug loaded halloysite mixed with 45 wt.% of microcrystalline cellulose. Powder flow and compressibility properties of halloysite (angle of repose, Carr’s...
22. February 2017
Abstract An innovative pediatric oral formulation of hydrochlorothiazide (HCT) (2 mg/mL), endowed with improved bioavailability and sustained release properties and suitable for the hypertension treatment in pediatric patients, was developed by combining the drug-cyclodextrin complexation and the incorporation of the complex into Solid Lipid Nanoparticles (SLN). Precirol®ATO5-based SLN, with two different surfactants (Pluronic®F68 and Tween®80) loaded with the drug as such or as binary...
20. February 2017
The main objective of the present study was to apply QbD methodology in the development of once-a-day sustained release quetiapine tablets. The quality target product profile (QTPP) was defined after the pharmaceutical properties and kinetic release of the innovator product, Seroquel XR 200 mg. For the D-optimal experimental design, the level and ratio of matrix forming agents and the type of extra granular diluent were chosen as independent inputs, which represented critical formulation...