| abstract |
The present invention relates to controlled release delivery of biologically active molecules from a solid composition prepared by exposure of the molecules to an organic compound. For instance, the organic compound is an organic solvent, such as an alcohol (e.g., preferably a lower alocohol, such as methanol, ethanol, isopropanol, n-propanol, n-butanol, isobutanol, t-butanol, etc.), a mixture of alcohols, an aldehyde, a ketone, a hydrocarbon (saturated or unsaturated), or an aromatic hydrocarbon. The solvent can be a mixture of different organic solvents, or the resulting formulation can be a mixture of, e.g., different lyophilized preparations, such as may be used to control the release profile of the resulting admixture. |