The Rare Disease SIG invites you to join our Open Meeting where we will provide an overview of our ongoing activities and seek your input on upcoming project ideas and topics. Notably, the SIG is currently focused on a Key Project, titled "Evidence-Based Patient Advocacy in Rare Disease Health Technology Assessment (HTA)." During the meeting, we will present the proposal for this project and discuss opportunities for members to join our Working Group. The SIG will also highlight upcoming events, such as webinars. Your participation and insights are highly valued.