Granted Patent B2

US 12,351,637 · App. 17/308,888 · Granted Jul 8, 2025

Inventors: Andrew John Geall (Carlsbad, CA); Venkata Ramana Doppalapudi (San Diego, CA); David Sai-Ho Chu (La Jolla, CA); Michael Caramian Cochran (La Jolla, CA); Rachel Elizabeth Johns (San Diego, CA); Palani Balu (Cupertino, CA); Rob Burke (Encinitas, CA); Beatrice Diana Darimont (San Diego, CA)

Assignee: AVIDITY BIOSCIENCES, INC.

C07K16/2863A61K31/7088A61K31/713A61K47/60A61K47/6807A61K47/6851A61K47/6889A61K48/0033A61K48/005A61K48/0075A61P35/00A61P35/02C07K16/2851C07K16/30C07K16/3061C12N15/113C12N15/1135C12N15/1138C12N15/88A61K2039/505C07K2317/21C07K2317/24C07K2317/55C07K2317/569C07K2317/622C12N2310/14C12N2310/315C12N2310/321C12N2310/3231C12N2310/332C12N2310/3513C12N2310/3515C12N2320/32

Abstract

Claims (25)

1. An antibody conjugate of Formula (V):

A-C-B   Formula (V)

wherein,

A is an antibody or antigen-binding fragment thereof,

B is a polynucleotide;

C is a polymer;

wherein C is conjugated to a cysteine or lysine residue of A and wherein A-C is conjugated to the 5′ end of a sense strand of B; and

wherein the antibody or antigen-binding fragment thereof binds to a cell surface receptor;

wherein the polynucleotide comprises at least one 2′ modified nucleotide, at least one modified internucleotide linkage, or at least one inverted abasic moiety.

2. The antibody conjugate of claim 1 , wherein the at least one 2′ modified nucleotide comprises 2′-O-methyl, 2′-O-methoxyethyl (2′-O-MOE), 2′-O-aminopropyl, 2′-deoxy, 2′-deoxy-2′-fluoro, 2′-O-aminopropyl (2′-O-AP), 2′-O-dimethylaminoethyl (2′-O-DMAOE), 2′-O-dimethylaminopropyl (2′-O-DMAP), 2′-O-dimethylaminoethyloxyethyl (2′-O-DMAEOE), or 2′-O-N-methylacetamido (2′-O-NMA) modified nucleotide.

3. The antibody conjugate of claim 1 , wherein the at least one 2′ modified nucleotide comprises locked nucleic acid (LNA) or ethylene nucleic acid (ENA).

4. The antibody conjugate of claim 1 , wherein the at least one modified internucleotide linkage comprises a phosphorothioate linkage or a phosphorodithioate linkage.

5. The antibody conjugate of claim 1 , wherein the at least one inverted abasic moiety is at at least one terminus.

6. The antibody conjugate of claim 1 , wherein the polynucleotide hybridizes to a target region selected from growth factors or mitogens, receptor tyrosine kinases, cytoplasmic tyrosine kinases, cytoplasmic serine/threonine kinases, and regulatory GTPases, and transcription factors.

7. The antibody conjugate of claim 1 , wherein the polynucleotide comprises at least one modification.

8. The antibody conjugate of claim 1 , wherein the cell surface receptor is selected from epidermal growth factor receptor (EGFR), interleukin-2 receptor (IL-2R), transferrin receptor, endothelin receptor type B (ETRB), interleukin-20 receptor subunit alpha (IL20Ra), and cytotoxic T-lymphocyte-associated antigen 4 (CTLA-4) receptor.

9. The antibody conjugate of claim 1 , wherein the antibody or antigen-binding fragment thereof comprises a humanized antibody or antigen-binding fragment thereof, chimeric antibody or antigen-binding fragment thereof, monoclonal antibody or antigen-binding fragment thereof, monovalent Fab′, divalent Fab2, single-chain variable fragment (scFv), diabody, minibody, nanobody, single-domain antibody (sdAb), or camelid antibody or antigen-binding fragment thereof.

10. The antibody conjugate of claim 1 , wherein the polymer is selected from polysaccharide, lignin, rubber, or polyalkylene oxide, alpha-, omega-, dihydroxylpolyethyleneglycol, biodegradable lactone-based polymer (e.g. polyacrylic acid), polylactide acid (PLA), poly (glycolic acid) (PGA), polypropylene, polystyrene, polyolefin, polyamide, polycyanoacrylate, polyimide, polyethylenterephthalat (PET, PETG), polyethylene terephthalate (PETE), polytetramethylene glycol (PTG), and polyurethane.

11. The antibody conjugate of claim 10 , wherein the polyalkylene oxide is polyethylene glycol.

12. The antibody conjugate of claim 1 , wherein the polymer has a molecular weight selected from 200 Da, 300 Da, 400 Da, 500 Da, 600 Da, 700 Da, 800 Da, 900 Da, 1000 Da, 2000 Da, and 5000 Da.

13. A pharmaceutical composition comprising:

the antibody conjugate of claim 1 ; and

a pharmaceutically acceptable excipient.

14. The pharmaceutical composition of claim 13 , wherein the pharmaceutical composition is formulated as a nanoparticle formulation.

15. The pharmaceutical composition of claim 13 , wherein the pharmaceutical composition is formulated for parenteral, oral, intranasal, buccal, rectal, or transdermal administration.

Assignments (3)

Continuity (4)

References Cited (400)