The present invention relates to an active (immunostimulatory) composition comprising at least one RNA, preferably a mRNA, encoding at least two (preferably different) antigens capable of eliciting an (adaptive) immune response in a mammal. The invention furthermore relates to a vaccine comprising the active (immunostimulatory) composition, and to the use of the active (immunostimulatory) composition (for the preparation of a vaccine) and/or of the vaccine for eliciting an (adaptive) immune response for the treatment of lung cancer, particularly of non-small cell lung cancers (NSCLC), preferably selected from the three main sub-types squamous cell lung carcinoma, adenocarcinoma and large cell lung carcinoma, or of disorders related thereto. Finally, the invention relates to kits, particularly to kits of parts, containing the active (immunostimulatory) composition and/or the vaccine.
