A quality-by-design study to develop Nifedipine nanosuspension: examining the relative impact of formulation variables, wet media milling process parameters and excipient variability on drug product quality attributes

Drug Development and Industrial Pharmacy
Pooja J PatelRutesh H Dave

Abstract

Wet milling is a multifunctional and the most common method to prepare a drug nanosuspension for improving the bioavailability of poorly water soluble drugs. A suitable way of preparing a high drug-loaded nifedipine nanosuspension using wet stirred media milling was investigated in the present study. Nifedipine, a poorly water soluble drug, was selected as a model drug to enhance its dissolution rate and oral bioavailability by preparing an appropriate crystalline nanosuspension. Process parameters, such as milling media volume, milling speed and milling time, were optimized using the one variable at a time (OVAT) approach. A similar method was used to select an appropriate polymeric stabilizer and a surfactant from different categories of polymeric stabilizers (HPC SL, HPC SSL Soluplus®, Kollidon® VA 64 and HPMC E 15) and surfactants (Poloxamer 407, Kolliphor TPGS and Docusate sodium). A systematic optimization of critical formulation parameters (such as drug concentration, polymer concentration and surfactant concentration) was performed with the aid of the Box-Behnken design. Mean particle size, polydispersity index and zeta potential as critical quality attributes (CQAs) were selected in the design for the evaluation and op...Continue Reading

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Citations

Jan 7, 2021·Drug Development and Industrial Pharmacy·Biswadip SinhaJan P Möschwitzer

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