Abstract: The present invention relates to compositions comprising RNA, preferably messenger RNA (mRNA), more preferably self-amplifying RNA (saRNA), and polymers, in particular cationic polymers, such as polyethylenimine (PEI), poly-L-Lysin (PEL), polyvinylamine (PVA) or polyallylamine (PAA), where individual RNA molecules are present in solution. In the formulations, the RNA is preferentially present in the form of monomers, dimers, timers or oligomers, but not as aggregates comprising a large number of RNA molecules per aggregate, in particular large polyplex nanoparticles. The formulations display improved transfection efficacy and they can be used for delivery of RNA to a subject, where they have an improved dose response relationship in comparison to formulations where large aggregates in the form of polyplex nanoparticles are present.

Abstract: The present invention relates to compositions comprising polyplex formulations for delivery of RNA to a target organ or a target cell after parenteral administration, in particular after intramuscular administration. More precisely, the present invention relates to formulations for administration of RNA such as self-replicating RNA, in particular by intramuscular injection. In more detail, the formulations comprise polyplex particles from single stranded RNA and a polyalkyleneimine. The RNA may encode a protein of interest, such as a pharmaceutically active protein. Furthermore, the present invention relates to pharmaceutical products, comprising said RNA polyplex formulations for parenteral application to humans or to animals. The present invention relates as well to manufacturing of such pharmaceutical products, comprising, optionally, steps of sterile filtration, freezing and dehydration.

Abstract: The present invention relates to compositions comprising polyplex formulations for delivery of RNA to a target organ or a target cell after parenteral administration, in particular after intramuscular administration. More precisely, the present invention relates to formulations for administration of RNA such as self-replicating RNA, in particular by intramuscular injection. In more detail, the formulations comprise polyplex particles from single stranded RNA and a polyalkyleneimine. The RNA may encode a protein of interest, such as a pharmaceutically active protein. Furthermore, the present invention relates to pharmaceutical products, comprising said RNA polyplex formulations for parenteral application to humans or to animals. The present invention relates as well to manufacturing of such pharmaceutical products, comprising, optionally, steps of sterile filtration, freezing and dehydration.

Abstract: The present invention relates to compositions comprising polyplex formulations for delivery of RNA to a target organ or a target cell after parenteral administration, in particular after intramuscular administration. More precisely, the present invention relates to formulations for administration of RNA such as self-replicating RNA, in particular by intramuscular injection. In more detail, the formulations comprise polyplex particles from single stranded RNA and a polyalkyleneimine.

Abstract: The present invention relates to compositions comprising polyplex formulations for delivery of RNA to a target organ or a target cell after parenteral administration, in particular after intramuscular administration. More precisely, the present invention relates to formulations for administration of RNA such as self-replicating RNA, in particular by intramuscular injection. In more detail, the formulations comprise polyplex particles from single stranded RNA and a polyalkyleneimine. The RNA may encode a protein of interest, such as a pharmaceutically active protein. Furthermore, the present invention relates to pharmaceutical products, comprising said RNA polyplex formulations for parenteral application to humans or to animals. The present invention relates as well to manufacturing of such pharmaceutical products, comprising, optionally, steps of sterile filtration, freezing and dehydration.