A61K 48/0041

Medicinal preparations containing genetic material which is inserted into cells of the living body to treat genetic diseases; Gene therapy {characterised by an aspect of the 'non-active' part of the composition delivered, e.g. wherein such 'non-active' part is not delivered simultaneously with the 'active' part of the composition wherein the non-active part clearly interacts with the delivered nucleic acid the non-active part being polymeric}