IP Library Granted Patent US 12,233,132
Granted Patent B2
US 12,233,132 · App. 17/665,190 · Granted Feb 25, 2025

Polyoxazoline-lipid conjugates and lipid nanoparticles and pharmaceutical compositions including same

Inventors: J Milton Harris (Huntsville, AL); Michael Bentley (Huntsville, AL); Tacey Viegas (Madison, AL); Randall Moreadith (Huntsville, AL); Robert J Sharpe (Meridianville, AL); Kunsang Yoon (Madison, AL); Zhihao Fang (Madison, AL); Rebecca Weimer (Huntsville, AL)
Assignee: Serina Therapeutics, Inc.
A61K47/6935A61K39/00
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Quick Facts
Patent No.
US 12,233,132
App. No.
17/665,190
Granted
Feb 25, 2025
Kind
B2
Abstract

POZ-lipid conjugates and lipid nanoparticles (LNPs) including POZ-lipid conjugates used to facilitate delivery of an encapsulated payload. LNPs including POZ-lipid conjugates and a nucleic acid payload such as, but not limited to, mRNA or modified mRNA are disclosed. Such LNPs have no immunogenicity or reduced immunogenicity as compared to a corresponding LNP containing a PEG-lipid.

Claims (30)

1. A compound having one of the following formulae:

wherein m ranges from 0 to 2, n ranges from 1 to 1000, o ranges from 1 to 5, and p ranges from 1 to 10.

2. The compound of claim 1 , having a hydrolysis half-life in 50 percent human plasma of about 10 minutes or less.

3. The compound of claim 1 , having a hydrolysis half-life in 50 percent human plasma of about 120 hours or more.

4. The compound of claim 1 , exhibiting a decrease of about 30 percent to about 50 percent in POZ-DMA peak area over a range of UV wavelengths centered at 210 nm after overnight exposure to lipo-amidase at 37° C.

5. The compound of claim 1 , exhibiting a decrease of about 10 percent or less in POZ-DMA peak area UV wavelengths centered at 210 nm after overnight exposure to lipo-amidase at 37° C.

6. A composition comprising the compound of claim 1 .

7. The composition of claim 6 , further comprising a cationic or ionizable lipid.

8. A compound having one of the following formulae:

wherein m ranges from 0 to 2, n ranges from 1 to 1000, o ranges from 1 to 5, and p ranges from 1 to 10.

9. The compound of claim 8 , having a hydrolysis half-life in 50 percent human plasma of about 120 hours or more.

10. A composition comprising the compound of claim 8 .

11. The composition of claim 10 , further comprising a cationic or ionizable lipid.

12. A compound having the following formula:

wherein m ranges from 0 to 2, and wherein the compound has a rate of hydrolysis that is determined at least in part by an amidase-cleavable amide.

13. The compound of claim 12 , wherein m is 1.

14. A composition comprising the compound of claim 12 .

15. The composition of claim 14 , further comprising a cationic or ionizable lipid.

16. The compound of claim 12 , having a hydrolysis half-life in 50 percent human plasma of about 120 hours or more.

17. A lipid nanoparticle comprising:

a compound of one of the following formulae:

wherein m ranges from 0 to 2, n ranges from 1 to 1000, o ranges from 1 to 5, and p ranges from 1 to 10;

an ionizable or cationic lipid;

a helper lipid; and

a sterol lipid.

18. The lipid nanoparticle of claim 17 , further comprising a payload.

19. The lipid nanoparticle of claim 18 , wherein the payload comprises an oligonucleotide.

20. The lipid nanoparticle of claim 19 , wherein the oligonucleotide comprises DNA, siRNA, self-replicating mRNA, mRNA comprised of modified nucleosides, or mRNA comprised of naturally occurring nucleosides.

21. The lipid nanoparticle of claim 17 , wherein the helper lipid comprises 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine (DOPE), 1,2-distearoyl-sn-glycero-3-phosphocholine (DSPC), or 1-palmitoyl-2-oleoylsn-glycero-3-phosphoethanolamine (POPE).

22. The lipid nanoparticle of claim 21 , wherein the sterol lipid comprises cholesterol, the helper lipid is DSPC, and further comprising an oligonucleotide payload.

Assignments (2)
CHANGE OF NAME Recorded Apr 12, 2024
From: SERINA THERAPEUTICS, INC.
To: SERINA THERAPEUTICS (AL), INC.
Reel/Frame 067087/0743 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 5, 2022
From: HARRIS, J MILTON; BENTLEY, MICHAEL; VIEGAS, TACEY; MOREADITH, RANDALL; SHARPE, ROBERT J.; YOON, KUNSANG; FANG, ZHIHAO; WEIMER, REBECCA
To: SERINA THERAPEUTICS, INC.
Reel/Frame 059498/0289 →
Continuity (2)
Provisional Application 63147470 · Feb 9, 2021
Related Publication 20220249695A1 · Aug 11, 2022
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