The document discusses the Quality Target Product Profile (QTPP), which describes the quality characteristics of a drug product. The QTPP is established early in development based on factors like intended use, dosage form, and safety/efficacy requirements. It serves as the basis for product design and helps justify choices around dosage, packaging, and delivery. The QTPP should be updated as development progresses and knowledge about the product evolves. Key components of a QTPP include details on the active substance, finished product specifications, and packaging documentation.