The final webinar from RealiseD project focuses on what truly matters: the patient. Rare disease trials often struggle to capture outcomes that reflect patient priorities but RealiseD is working to change that. Rudradev Sengupta, Senior Trial Design Lead at One2Treat, will present an approach that embeds patient voices into every stage of trial design and analysis. By using hierarchical endpoints and net treatment benefit, this framework balances benefits and risks in alignment with patient preferences, enabling transparent discussions among stakeholders and ensuring that success is defined by what matters most to patients. This is a vital conversation for anyone committed to making clinical research more humane and impactful.