The present invention is directed to a storage-stable formulation of long-chain
RNA. In particular, the invention concerns a
dry powder composition comprising a long-chain
RNA molecule. The present invention is furthermore directed to methods for preparing a
dry powder composition comprising a long-chain
RNA molecule by spray-
freeze drying. The invention further concerns the use of such a
dry powder composition comprising a long-chain
RNA molecule in the preparation of pharmaceutical compositions and vaccines, to a method of treating or preventing a disorder or a
disease, to first and second medical uses of such a dry 10
powder composition comprising a long-chain
RNA molecule and to kits, particularly to kits of parts, comprising such a dry
powder composition comprising a long-chain
RNA molecule.