The VR-MTB project, hosted at the European Campus Rottal-Inn (ECRI) of the Deggendorf Institute of Technology, is set to transform the efficacy of tumor board sessions, which are vital for collaborative decision-making in cancer treatments. Utilizing advanced XR technology, the project addresses common challenges like fragmented data sources and restricted time, which currently hinder MTB processes. The VR-MTB platform will allow healthcare professionals to interact with comprehensive patient data in a fully immersive environment, significantly enhancing diagnostic accuracy and treatment planning. It will utilize AI applications and interoperability standards in order to automate patient summaries and seamlessly integrate them into Electronic Health Record systems. Supported by the German Federal Ministry of Education and Research, this initiative aims to substantially advance cancer care.