| CPC A61K 39/145 (2013.01) [A61K 9/5123 (2013.01); A61P 31/16 (2018.01); A61K 2039/53 (2013.01); A61K 2039/54 (2013.01); A61K 2039/545 (2013.01); C12N 2760/16134 (2013.01)] | 19 Claims |
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1. A vaccine comprising a messenger ribonucleic acid (mRNA) polynucleotide comprising an open reading frame encoding an influenza virus hemagglutinin antigen formulated in a lipid nanoparticle (LNP), wherein 100% of uracil nucleosides in the open reading frame are N1-methylpseudouridine, wherein one dose of the vaccine contains 10-100 μg of the mRNA polynucleotide, wherein the LNP comprises 20-60 mol % cationic lipid, 5-25 mol % neutral lipid, 25-55 mol % cholesterol, and 0.5-15 mol % PEG-modified lipid, wherein the cationic lipid comprises a cationic lipid of Formula (I):
![]() or a salt or isomer thereof, wherein:
R1 is —R″M′R′;
R2 and R3 are each independently C1-14 alkyl,
R4 is —(CH2)nQ where Q is —OR, R is H, and n is 4;
R5, R6, and R7 are each H;
M and M′ are each —OC(O)—;
R′ is C1-18 alkyl;
R″ is C3-14 alkyl; and
m is 6.
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