In recent years, the development of a pharmaceutical cocrystal has become a novel strategy to improve the solid state properties of an API. Usually, the solubility characteristics improve on the orders and this fact leads to essential reduction of therapeutic doses and, as a consequence, side effects. A cocrystal can be described as a supramolecular system formed by two different molecular entities where, one from the compounds is a poorly soluble API, whereas the second component presents a molecule of well soluble substance, which uptakes by body completely and takes part in enzymatic processes. The second component molecule belongs to GRAS (Generally Regarded As Save) list which includes the compounds recommended for application at pharmaceutical and food industries.
Carried out investigations:
- Cocrystal screening
- Characterization of cocrystal by X-ray diffraction methods
- Studying cocrystal solubility processes (kinetic and thermodynamic approaches) and comparison of the obtained characteristics with individual cocrystal components
- Parameters searching to obtain thermodynamic stable cocrystals with controlled stoichiometry aimed to scale-up procedure
- Membrane permeability of cocrystal and comparison with analogous characteristics of individual components