RNA-Immunotherapy of IVAC_W_bre1_uID and IVAC_M_uID

* The WAREHOUSE concept is based on RNA drug products shelved in a warehouse and targeting shared tumor-associated antigens (TAAs). The BioNTech Group (henceforward the "company") has identified a set of target antigens commonly expressed in TNBC. The selected breast cancer-associated antigens have been shown by immunogenicity testing to constitute suitable targets for immunotherapy and form the basis for the development of a novel RNA-based immunotherapy approach. * The IVAC® MUTANOME concept is based on the identification of tumor-specific mutations by next-generation sequencing (NGS) and on-demand RNA manufacturing for use in single patients to target multiple neo-antigens derived from mutated epitopes. The novel therapeutic concept is supported by a series of research projects and high level publications that have led to a broad acceptance that mutation-specific T cells bear enormous potential to confer anti-tumoral activity in cancer patients. * The TNBC-MERIT study introduced the novel therapeutic concept for the individualized treatment of breast cancer that is based on (i) treatment with a patient-specific liposome complexed RNA tailored to the antigen-expression profile of any given patient's tumor (WAREHOUSE immunotherapy - IVAC\_W\_bre1\_uID) and (ii) on treatment with de novo synthesized RNAs targeting up to 20 individual tumor mutations (IVAC® MUTANOME immunotherapy - IVAC\_M\_uID) following optional treatment with WAREHOUSE. The scientific rationale for the combination of the two IVAC® approaches is based on the assumption that immunotherapies that (1) acknowledge tumor heterogeneity on a single-patient level and (2) target the whole range of antigens selectively expressed on tumors ("cancer antigenome"), including immunogenic shared and unique antigens, bear the highest potential to constitute an effective treatment of tumors.