Towards virtual formulation design of pharmaceutical tablets

Gavin Reynolds Senior Principal Scientist in Process Engineering and Digital at AstraZeneca, Macclesfield, UK. 

Acceleration of the development of new medicines and treatments is a key challenge across the pharmaceutical industry.  Traditional formulation development utilises extensive prototyping and make/test cycles.  Predictive modelling approaches have the potential to reduce the waste and lead time associated with traditional approaches by identifying a suitable formulation space leading to more targeted prototypes with a greater chance of achieving manufacturability and critical quality attributes.  Predicting the behaviour and performance of powders is challenging, and compounded further when predicting multi-component mixtures.  In this presentation, the focus will be on the prediction of compaction properties of powder mixtures.  This is a component of formulation design and improved predictive models in this area will at least ensure that any tablet prototypes will meet the manufacturability requirements of a mechanically robust tablet.  Recent progress in modelling, datasets and workflows enables a successful formulation window to be identified.  These tools can be combined with a system of models for other quality attributes to support rapid formulation development and process selection.