PATATIN-LIKE PHOSPHOLIPASE DOMAIN CONTAINING 3 (PNPLA3) iRNA COMPOSITIONS AND METHODS OF USE THEREOF

Abstract

The present invention relates to RNAi agents, e.g., double stranded RNAi agents, targeting the Patatin-Like Phospholipase Domain Containing 3 (PNPLA3) gene, and methods of using such RNAi agents to inhibit expression of a PNPLA3 gene and methods of treating subjects having Nonalcoholic Fatty Liver Disease (NAFLD) and/or a PNPLA3-associated disorder.

1 . A double stranded ribonucleic acid (RNAi) agent for inhibiting expression of Patatin-Like Phospholipase Domain Containing 3 (PNPLA3), wherein said double stranded RNAi agent comprises a sense strand and an antisense strand, the antisense strand comprising a region of complementarity which comprises at least 15 contiguous nucleotides differing by no more than 3 nucleotides from any one of the antisense sequences listed in any one of Tables 3-5, 7, and 8. 
     
     
         2 . The double stranded RNAi agent of  claim 1 , wherein said double stranded RNAi agent comprises at least one modified nucleotide. 
     
     
         3 . The double stranded RNAi agent of  claim 2 , wherein the modified nucleotides is selected from the group consisting of a deoxy-nucleotide, a 3′-terminal deoxy-thymine (dT) nucleotide, a 2′-O-methyl modified nucleotide, a 2′-fluoro modified nucleotide, a 2′-deoxy-modified nucleotide, a locked nucleotide, an unlocked nucleotide, a conformationally restricted nucleotide, a constrained ethyl nucleotide, an abasic nucleotide, a 2′-amino-modified nucleotide, a 2′-O-allyl-modified nucleotide, 2′-C-alkyl-modified nucleotide, 2′-hydroxyl-modified nucleotide, a 2′-methoxyethyl modified nucleotide, a 2′-O-alkyl-modified nucleotide, a morpholino nucleotide, a phosphoramidate, a non-natural base comprising nucleotide, a tetrahydropyran modified nucleotide, a 1,5-anhydrohexitol modified nucleotide, a cyclohexenyl modified nucleotide, a nucleotide comprising a phosphorothioate group, a nucleotide comprising a methylphosphonate group, a nucleotide comprising a 5′-phosphate, and a nucleotide comprising a 5′-phosphate mimic. 
     
     
         4 . The double stranded RNAi agent of  claim 1 , wherein the region of complementarity is at least 17 nucleotides in length; between 19 and 21 nucleotides in length; or 19 nucleotides in length. 
     
     
         5 . The double stranded RNAi agent of  claim 1 , wherein each strand is no more than 30 nucleotides in length. 
     
     
         6 . The double stranded RNAi agent of  claim 1 , wherein at least one strand comprises a 3′ overhang of at least 1 nucleotide; or at least 2 nucleotides. 
     
     
         7 . The double stranded RNAi agent of  claim 1 , further comprising a ligand. 
     
     
         8 . A double stranded ribonucleic acid (RNAi) agent for inhibiting the expression of PNPLA3, wherein said double stranded RNAi agent comprises a sense strand complementary to an antisense strand, wherein said antisense strand comprises a region complementary to part of an mRNA encoding PNPLA3, wherein each strand is about 14 to about 30 nucleotides in length, wherein said double stranded RNAi agent is represented by formula (III): 
       
         
           
                 
                 
               
                     
                   (III) 
                 
                     
                   sense: 
                 
                     
                   5′ n p -Na-(X X X) i -N b -Y Y Y-N b -(Z Z Z) j -N a -n q  3′ 
                 
                     
                 
                     
                   antisense: 
                 
                     
                   3′ n p ′-N a ′-(X′X′X′) k -N b ′-Y′Y′Y′-N b ′- 
                 
                     
                 
                     
                   (Z′Z′Z′) l -N a ′-n q ′ 5′ 
                 
             
                
                
                
                
                
                
                
                
               
            
           
         
         wherein: 
         i, j, k, and l are each independently 0 or 1; 
         p, p′, q, and q′ are each independently 0-6; 
         each N a  and N a ′ independently represents an oligonucleotide sequence comprising 0-25 nucleotides which are either modified or unmodified or combinations thereof, each sequence comprising at least two differently modified nucleotides; 
         each N b  and N b ′ independently represents an oligonucleotide sequence comprising 0-10 nucleotides which are either modified or unmodified or combinations thereof, 
         each n p , n p ′, n q , and n q ′, each of which may or may not be present, independently represents an overhang nucleotide; 
         XXX, YYY, ZZZ, X′X′X′, Y′Y′Y′, and Z′Z′Z′ each independently represent one motif of three identical modifications on three consecutive nucleotides; 
         modifications on N b  differ from the modification on Y and modifications on N b ′ differ from the modification on Y′; and 
         wherein the sense strand is conjugated to at least one ligand. 
       
     
     
         9 . The double stranded RNAi agent of  claim 8 , wherein formula (III) is represented by a formula selected from the group consisting of
 formula (IIIa):   
       
         
           
                 
                 
               
                     
                   (IIIa) 
                 
                     
                   sense: 
                 
                     
                   5′ n p -N a -Y Y Y-N a -n q  3′ 
                 
                     
                 
                     
                   antisense: 
                 
                     
                   3′ n p′ -N a′ -Y′Y′Y′-N a′ -n q′  5′; 
                 
             
                
                
                
                
                
                
               
            
           
         
         formula (IIIb): 
       
       
         
           
                 
                 
               
                     
                   (IIIb) 
                 
                     
                   sense: 
                 
                     
                   5′ n p -N a -Y Y Y-N b -Z Z Z-N a -n q  3′ 
                 
                     
                 
                     
                   antisense: 
                 
                     
                   3′ n p′ -N a′ -Y′Y′Y′-N b′ -Z′Z′Z′-N a′ -n q′  5′ 
                 
             
                
                
                
                
                
                
               
            
           
         
         wherein each N b  and N b ′ independently represents an oligonucleotide sequence comprising 1-5 modified nucleotides; 
         formula (IIIc): 
       
       
         
           
                 
                 
               
                     
                   (IIIc) 
                 
                     
                   sense: 
                 
                     
                   5′ n p -N a -X X X-N b -Y Y Y-N a -n q  3′ 
                 
                     
                 
                     
                   antisense: 
                 
                     
                   3′ n p′ -N a′ -X′X′X′-N b -Y′Y′Y′-N a′ -n q′  5′ 
                 
             
                
                
                
                
                
                
               
            
           
         
         wherein each N b  and N b ′ independently represents an oligonucleotide sequence comprising 1-5 modified nucleotides; and 
         formula (IIId): 
       
       
         
           
                 
                 
               
                     
                   (IIId) 
                 
                     
                   sense: 
                 
                     
                   5′ n p -N a -X X X-N b -Y Y Y-N b -Z Z Z-N a - n q  3′ 
                 
                     
                 
                     
                   antisense: 
                 
                     
                   3′ n P′ -N a′ -X′X′X′-N b -Y′Y′Y′-N b -Z′Z′Z′-N a -n q -5′ 
                 
             
                
                
                
                
                
                
               
            
           
         
         wherein each N b  and N b ′ independently represents an oligonucleotide sequence comprising 1-5 modified nucleotides and each N a  and N a ′ independently represents an oligonucleotide sequence comprising 2-10 modified nucleotides. 
       
     
     
         10 . The double stranded RNAi agent of  claim 7  or  8 , wherein the ligand is one or more GalNAc derivatives attached through a bivalent or trivalent branched linker. 
     
     
         11 . The double stranded RNAi agent of  claim 10 , the ligand is 
       
         
           
           
               
               
           
         
       
     
     
         12 . The double stranded RNAi agent of  claim 1  or  8 , wherein said double stranded RNAi agent further comprises at least one phosphorothioate or methylphosphonate internucleotide linkage. 
     
     
         13 . A cell containing the double stranded RNAi agent of  claim 1 . 
     
     
         14 . A pharmaceutical composition for inhibiting expression of a PNPLA3 gene comprising the double stranded RNAi agent of  claim 1 . 
     
     
         15 . A method of inhibiting PNPLA3 expression in a cell, the method comprising:
 (a) contacting the cell with the double stranded RNAi agent of  claim 1 ; and   (b) maintaining the cell produced in step (a) for a time sufficient to obtain degradation of the mRNA transcript of a PNPLA3 gene, thereby inhibiting expression of the PNPLA3 gene in the cell.   
     
     
         16 . The method of  claim 15 , wherein said cell is within a subject. 
     
     
         17 . The method of  claim 16 , wherein the subject is a human. 
     
     
         18 . A method of treating a subject having a disease or disorder that would benefit from reduction in PNPLA3 expression, the method comprising administering to the subject a therapeutically effective amount of the double stranded RNAi agent of  claim 1 , thereby treating said subject. 
     
     
         19 . A method of preventing at least one symptom in a subject having a disease or disorder that would benefit from reduction in PNPLA3 expression, the method comprising administering to the subject a prophylactically effective amount of the double stranded RNAi agent of  claim 1 , thereby preventing at least one symptom in the subject having a disorder that would benefit from reduction in PNPLA3 expression. 
     
     
         20 . The method of  claim 18  or  19 , wherein the disorder is a PNPLA3-associated disease. 
     
     
         21 . The method of any one of  claim 18  or  19 , further comprising administering an anti-PNPLA3 antibody, or antigen-binding fragment thereof, to the subject.