• PFDD significantly improves drug development efficiency and patient adherence by incorporating patient perspectives early and throughout the process.
• Regulatory agencies, including the FDA and EMA, have established frameworks that mandate patient engagement, driving industry adoption.
• Digital health technologies, such as wearables and mobile apps, are transforming PRO collection and enabling real-world evidence generation.
• Standardization of PFDD methodologies and ensuring diverse patient representation are critical challenges that require collaborative solutions.