Over the last years, hot melt extrusion (HME) has attracted significant interest in the pharmaceutical industry. HME is performed at elevated process temperatures that cause the material to soften or even melt. Thereby, the formation of molecular solid dispersions is possible, given that the formulation and the HME process are carefully designed.
The production and manufacturing of solid pharmaceutical products is in need of new technologies to ensure a safe and efficient medical therapy. Hot melt extrusion (HME) is a new and innovative technology in the field of pharmaceutics, which aids to overcome numerous limitations of traditional manufacturing techniques. The benefit of HME is three-fold: First, the bioavailability of poorly soluble drugs is significantly increased due to the conversion of the drug from the crystalline into its amorphous state . Recent work showed that HME is even capable of converting a liquid nanosuspension into a solid formulation in a one-step process , thereby avoiding aggregation of nanocrystals. Second, drug release profiles can be specifically tailored (in most cases retarded release of water soluble drugs) via the application of a proper matrix carrier in combination with plasticisers . Third, drug abuse can be prevented due to superior mechanical properties of the final product .