The present invention relates to novel uses of a construct consisting of virus-like particle (VLP) structure chemically coupled to a fragment of the A²-1-42 peptide and its pharmaceutically acceptable salts (hereinafter CONSTRUCT), in particular to dosage regimens, modes of and dosage forms for the administration of a CONSTRUCT for the treatment of patients suffering from dementia, in particular dementia of the Alzheimer's type.本發明係關於一構築體(以下稱之為構築體)之新穎用途,該構築體由與Aβ-1-42肽之一片斷及其醫藥學上可接受之鹽化學偶合的病毒樣粒子(VLP)結構所組成,特定言之,係關於投與構築體來治療患有癡呆,特定言之為阿爾茨海默氏(Alzheimer's)型癡呆之患者的給藥方案、模式及劑型。