Spray drying is nowadays a well stablished technology in the pharmaceutical industry. In such a competitive and fast-paced area, the need for robust and lean process development methodologies is critical in order to minimize the consumption of resources, namely time and materials. Moreover the product quantities required in the early stages of the development are usually small but may quickly increase by several orders of magnitude as the drug candidate advances through the clinical phases and reaches the market. CMC development is therefore increasingly on the critical path of drug development, especially for drug candidates with compressed clinical development timelines.