IP Library Granted Patent US 12,440,486
Granted Patent B2
US 12,440,486 · App. 17/261,851 · Granted Oct 14, 2025

RBP4 antagonists for treatment and prevention of non-alcoholic fatty liver disease and gout

Inventors: Konstantin Petrukhin (New Windsor, NY); Boglarka Racz (Brooklyn, NY); Andras Varadi (Brooklyn, NY)
Assignee: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK
A61K31/4545A61K31/506A61P1/16A61P19/06
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Quick Facts
Patent No.
US 12,440,486
App. No.
17/261,851
Granted
Oct 14, 2025
Kind
B2
Abstract

The subject invention provides a method for treating a non-alcoholic fatty liver disease (NAFLD) disease in a subject afflicted therewith comprising administering to the subject a pharmaceutical composition comprising an amount of a compound which is a non-retinoid retinol-binding protein 4 (RBP4) antagonist effective to treat the subject, thereby treating the subject. The subject invention provides a method for treating gout in a subject afflicted therewith comprising administering to the subject a pharmaceutical composition comprising an amount of a compound which is a retinol-binding protein 4 (RBP4) antagonist effective to treat the subject, thereby treating the subject.

Claims (111)

1. A method for treating gout in a subject afflicted therewith comprising administering to the subject a pharmaceutical composition comprising an amount of a compound effective to treat the subject, thereby treating the subject, wherein compound has the structure

wherein L is a linking group having the structure:

and Z is a group having the structure:

wherein

R 1 , R 2 , R 3 , R 4 , and R 5 are each independently H, halogen, CF 3 or C 1 -C 4 alkyl, aryl or heteroaryl;

R 6 is H, OH, or halogen or absent;

ψ is absent or present, and when present is a bond;

B is a substituted or unsubstituted heterobicycle, pyridazine, pyrazole, pyrazine, thiadiazole, or triazole, wherein the heterobicycle is other than chloro substituted indole; and

the pyrazole, when substituted, is substituted with other than trifluoromethyl;

B′ is a substituted or unsubstituted phenyl, pyridine, pyrimidine, benzyl, pyrrolidine, sulfolane, oxetane, CO 2 H or (C 1 -C 4 alkyl)-CO 2 H,

wherein the substituted phenyl is substituted with other than trifluoromethyl or 3-(methyl carboxylate), the substituted pyridine is substituted with other than trifluoromethyl and the substituted pyrrolidine is substituted with other than hydroxamic acid, and

the substituted or unsubstituted pyrrolidine is bound to the carbonyl through a carbon-carbon bond;

A is absent or present, and when present is

B 1 is substituted or unsubstituted monocycle, bicycle, heteromonocycle, heterobicycle, benzyl, CO 2 H or (C 1 -C 4 alkyl)-CO 2 H,

wherein when B 1 is CO 2 H, then A is present

and is

R 7 is alkyl;

X is N or CR 8 , wherein R 8 is H, OH, or halogen;

B 2 has the structure:

wherein

α and β are each a bond that is present or absent;

X 1 is N, NH or NR 99 ,

wherein R 99 is alkyl, alkenyl or alkynyl;

X 2 is C or N;

X 3 is CH or N;

R 9 , R 10 and R 11 are each, independently, H, halogen, alkyl, alkenyl, alkynyl, alkyl-OH, alkyl-NH 2 , alkyl-OAc alkyl-O(CO)-alkyl, alkyl-O-alkyl, haloalkyl, cycloalkyl, O-alkyl, NH-alkyl, C(O)OH, C(O)—NH 2 , C(O)—N(CH 3 ) 2 , C(O)—NHCH 3 , NHC(O)—N(CH 3 ) 2 , CN or CF 3 ,

wherein

X 1 , X 2 and X 3 are each N, α is present and β is absent; or

X 1 , X 2 and X 3 are each N, α is present and β is absent; or

X 1 , X 2 and X 3 are each N, α is present and β is absent; or

X 1 is NH or NR 99 , X 2 is C, X 3 is N, α is absent and β is present, wherein

when X 1 is NH, X 2 is C, X 3 is N, α is absent and β is present, then one of R 9 , R 10 and R 11 is other than H,

or B 2 has the structure:

wherein

R 12 , R 13 and R 14 are each, independently, H, halogen, alkyl, alkenyl, alkynyl alkyl-OH, alkyl-NH 2 , alkyl-OAc, alkyl-O(CO)-alkyl, alkyl-O-alkyl, haloalkyl, cycloalkyl, O-alkyl, NH-alkyl, C(O)OH, C(O)—NH 2 , C(O)—N(CH 3 ) 2 , C(O)—NHCH 3 , NHC(O)—N(CH 3 ) 2 , CN or CF 3 , or a pharmaceutically acceptable salt thereof.

2. The method of claim 1 , wherein in the compound, R 1 , R 2 , R 3 , R 4 , and R 5 are each independently H, halogen, CF 3 or C 1 -C 4 alkyl.

3. The method of claim 1 , wherein the method further comprises a step of determining, or having determined, the level of RBP4 in adipose tissue or in serum in the subject and administering the pharmaceutical composition if the level of RBP4 in adipose tissue or in serum is elevated.

4. The method of claim 1 , wherein the amount of the compound is effective in reducing RBP4 levels in serum in the subject by about 90% or reducing uric acid levels in the serum of the subject to less than 7 mg/dL.

5. The method of claim 1 , wherein the amount of the compound is effective to normalize the concentration of triglycerides in the liver of the subject, or normalize the concentration of free fatty acids in the serum of the subject, or normalize the concentration of free fatty acids in the liver of the subject, wherein normalize comprises increasing or reducing the concentration of triglycerides or free fatty acids such that the concentration of triglycerides or free fatty acids is closer to the concentration of triglycerides or free fatty acids in a subject without gout; or

wherein the amount of the compound is effective to prevent trafficking of a fatty acid by RBP4, or to prevent trafficking of a fatty acid to the liver by RBP4, or inhibit binding between RBP4 and a fatty acid.

6. The method of claim 5 , wherein the amount of the compound is effective to normalize the concentration of fatty acid in the liver.

7. The method of claim 1 , wherein the subject has elevated serum RBP4 levels; or

wherein the subject has serum RBP4 levels elevated by more than 3 microgram per ml.

8. The method of claim 1 , wherein in the compound,

L is

 and Z is

 or

wherein

L is

 and Z is

9. The method of claim 1 , wherein in the compound,

L is

Z is

two or more of R 1 , R 2 , R 3 , R 4 , or R 5 are other than H,

and

when R 1 is CF 3 , R 2 is H, R 3 is F, R 4 is H, and R 5 is H, or R 1 is H, R 2 is CF 3 , R 3 is H, R 4 is CF 3 , and R 5 is H, or R 1 is Cl, R 2 is H, R 3 is H, R 4 is F, and R 5 is H, or R 1 is CF 3 , R 2 is H, R 3 is F, R 4 is H, and R 5 is H, or R 1 is CF 3 , R 2 is F, R 3 is H, R 4 is H, and R 5 is H, or R 1 is Cl, R 2 is F, R 3 is H, R 4 is H, and R 5 is H, then B is other than

10. The method of claim 1 , wherein in the compound,

L is

 and Z is

 or

wherein

L is

 Z is

 and

R 6 is absent or present, and when present is H, OH, or halogen

and when ψ is present, then R 6 is absent and when ψ is absent, then R 6 is present; or

wherein

L is

 and Z is

 or

wherein

L is

 and Z is

 or

wherein

L is

 Z is

 R 6 is H, and A is

 or

wherein

L is

 and Z is

11. The method of claim 1 , wherein the compound is

or a pharmaceutically acceptable salt thereof.

12. The method of claim 1 , wherein the amount of the compound administered to the subject is 5-1000 mg, 5-800 mg, 5-200 mg, 45-200 mg, 45-1000 mg, 45-800 mg, 10-50 mg, 96 mg, 24 mg or 10 mg per day.

13. The method of claim 1 , wherein the method further comprises administering an amount of a second agent which is (R)-(+)-(5,6-dichloro 2,3,9,9a-tetrahydro 3-oxo-9a-propyl-1H-fluoren-7-yl)oxy]acetic acid (DPOFA), a Nonsteroidal Anti-inflammatory Drug (NSAID, indomethacin, colchicine, lesinurad, corticosteroids, betamethasone, prednisone, dexamethasone, cortisone, cortisone, hydrocortisone, methylprednisone, prednisolone, biologic anti-IL-1alpha/beta agents, canakinumab, rilonacept, anakinra, allopurinol, benzbromarone, forms of uricase enzymes, pegloticase, topiroxostat (FYX-051), ulodesine (BCX4208), KUX-1151, RLBN1001, RDEA3170, arhalofenate (MBX-102), levotofisopam, UR-1102, PF-06743649, BCX4208, SHR4640, Lumiracoxib, Tranilast, Topiroxostat, LC350189, Bucillamine, AC-201, HuZhen Capsules, MPC-004, FYU-981, Sodium Bicarbonate, SEL-212, SEL-037, Apremilast, TMX-67, SSS11, D-0120, febuxostat or probenecid, or esters or salts thereof effective to treat the subject, thereby treating the subject.

14. The method of claim 1 , wherein the subject is afflicted with gout; or

wherein the subject is afflicted with chronic gout or acute gout.

15. The method of claim 14 , wherein the amount of the compound is effective in reducing uric acid levels to 3.4-7.0 mg/dL in the blood of the subject.

16. The method of claim 1 , wherein in the compound,

L is a linking group having the structure:

Z is a group having the structure:

A is

 and

B 2 is

17. The method of claim 1 , wherein in the compound,

L is

 Z is

 and A is absent.

18. The method of claim 1 , wherein in the compound,

L is,

 Z is

 R 6 is H, and A is

19. The method of claim 1 , wherein the compound is

or a pharmaceutically acceptable salt thereof.

20. The method of claim 1 , wherein the compound is

or a pharmaceutically acceptable salt thereof.

21. The method of claim 1 , wherein the compound is

or a pharmaceutically acceptable salt thereof.

22. The method of claim 1 , wherein the compound is

or a pharmaceutically acceptable salt thereof.

Assignments (2)
CONFIRMATORY LICENSE Recorded Nov 15, 2023
From: COLUMBIA UNIV NEW YORK MORNINGSIDE
To: NATIONAL INSTITUTES OF HEALTH (NIH), U.S. DEPT. OF HEALTH AND HUMAN SERVICES (DHHS), U.S. GOVERNMENT
Reel/Frame 065593/0620 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 22, 2021
From: PETRUKHIN, KONSTANTIN; RACZ, BOGLARKA; VARADI, ANDRAS
To: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK
Reel/Frame 055004/0041 →
Continuity (2)
Provisional Application 62713288 · Aug 1, 2018
Related Publication 20230241049A1 · Aug 3, 2023
References Cited (44)
US 9777010B2 · Petrukhin · 2017 [cited by examiner]
US 10273243B2 · Petrukhin · 2019 [cited by examiner]
US 10913746B2 · Petrukhin · 2021 [cited by examiner]
US 11649240B2 · Petrukhin · 2023 [cited by examiner]
US 20110123421A1 · Monia et al. · 2011 [cited by applicant]
US 20110123521A1 · Monia et al. · 2011 [cited by applicant]
US 20140066420A1 · Kasai et al. · 2014 [cited by applicant]
US 20160046648A1 · Petrukhin et al. · 2016 [cited by applicant]
US 20230312585A1 · Petrukhin · 2023 [cited by examiner]
EP 3210973A1 · 2017 [cited by applicant]
WO WO2014152013A1 · 2014 [cited by examiner]
WO WO2018232150A1 · 2018 [cited by applicant]
WO WO2018232154A1 · 2018 [cited by applicant]
WO WO2020028723A1 · 2020 [cited by applicant]
Cronstein (Cronstein et al., Arthritis Res Ther 8 (Suppl 1), S3 (2006)) (Year: 2006). [cited by examiner]
Nair (Nair et al., J Basic Clin Pharm. Mar. 2016;7(2):27-31) (Year: 2016). [cited by examiner]
Haig A. The Formation and Excretion of Uric Acid. Chic Med J Exam. Sep. 1888;57(3):171-176 (Year: 1888). [cited by examiner]
Brown, Bioisosteres in Medicinal Chemistry, 2012, p. 17, Classical Bioisosteres (Year: 2012). [cited by examiner]
Deng et al., Serum retinol-binding protein 4 levels are elevated but do not contribute to insulin resistance in newly diagnosed Chinese hypertensive patients. Diabetol Metab Syndr. Jun. 11, 2014;6:72 (Year: 2014). [cited by examiner]
Chen (Chen et al., Metabolism, vol. 58, Issue 12, 2009, pp. 1812-1816) (Year: 2009). [cited by examiner]
Li et al., Retinol-binding protein 4 as a novel risk factor for cardiovascular disease in patients with coronary artery disease and hyperinsulinemia. Am J Med Sci. Dec. 2014;348(6):474-9 (Year: 2014). [cited by examiner]
International Search Report issued Nov. 27, 2019 in connection with PCT International Application No. PCT/US2019/044754. [cited by applicant]
Written Opinion of the International Searching Authority issued Nov. 27, 2019 in connection with PCT International Application No. PCT/US2019/044754. [cited by applicant]
International Preliminary Report on Patentability issued Feb. 2, 2021, including Written Opinion of the International Searching Authority, issued Nov. 27, 2019 in connection with PCT International Application No. PCT/US… [cited by applicant]
Tan, Yi et al., “Suppression of retinol-binding protein 4 with RNA oligonucleotide prevents high-fat diet-induced metabolic syndrome and non-alcoholic fatty liver disease in mice”, Department of Medical & Molecular BioS… [cited by applicant]
Yang, Jin et al., “Berberine ameliorates non-alcoholic steatohepatitis in ApoE [cited by applicant]
Zhang, Wei et al., “Anti-diabetic effects of cinnamaldehyde and berberine and their impacts on retinol-binding protein 4 expression in rats with type 2 diabetes mellitus”, Chinese Medical Association, Jun. 8, 2022. [cited by applicant]
Bluher, Mattias et al., “Does Retinol-Binding Protein 4 Cause or Reflect Fatty Liver Disease,” Hepatology, 2008. [cited by applicant]
Jun. 21, 2022 European Extended Search Report issued in connection with European Patent Application No. EP 19845117.1-1112. [cited by applicant]
Oct. 23, 2023 Communication Pursuant to Article 94(3) EPC issued in connection with European Patent Application No. EP 19845117.1-1112. [cited by applicant]
English Translation of the Dec. 18, 2023 First Office Action issued in connection with Chinese Patent Application No. CN 20198051205.3. [cited by applicant]
Atti, Alan et al., “Adipocyte metabolism and obesity”, Journal of Lipid Research, Supplement Apr. 2009, p. S395-S399. [cited by applicant]
Balagopal, Prabhakaran et al., “Reduction of elevated serum retinol binding protein in obese children by lifestyle intervention: association with subclinical inflammation”, Journal of Clinical Endocrinology and Metaboli… [cited by applicant]
Esteve, Eduardo et al., “Adipocytokines and insulin resistance: the possible role of lipocalin-2, retinol binding protein-4, and adiponectin” Diabetes Care, Nov. 2009, vol. 32, supplement 2, p. S362-S367. [cited by applicant]
Gavi, Shai et al., “Reitnol-binding protein 4 is associated with insulin resistance and body fat distribution in nonobese subject without type 2 diabetes”, Journal of Clinical Endocrinology and Metabolism, May 2007 vol.… [cited by applicant]
Jung, Un et al., “Obesity and its metabolic complications: the role of adipokines and the relationship between obesity, inflammation, insulin resistance, dyslipidemia and nonalcoholic fatty liver disease”, International… [cited by applicant]
Klöting, Nora et al., “Serum retinol-binding protein is more highly expressed in visceral than in subcutaneous adipose tissue and is a marker of intra-abdominal fat mass”, Cell Metabolism, Jul. 2007 vol. 6, p. 79-87. [cited by applicant]
Li, Jia-Ying et al., “Elevated RBP4 plasma levels were associated with diabetic retinopathy in type 2 diabetes”, Bioscience Reports, 2018 vol. 38, iss. 5. [cited by applicant]
Moraes-Vieira, Pedro et al., “RBP4 activates antigen-presenting cells leading to tissue inflammation and systemic insulin resistance”, Cell Metabolism, Mar. 2014 vol. 19, p. 512-526. [cited by applicant]
Nair, Anup et al. “Case-control analysis of SNPs in GLUT4, RBP4 and STRA6: association of SNPs in STRA6 with type 2 diabetes in a south Indian population”, PLoS One, Jul. 2010 vol. 5, iss. 7 e11444. [cited by applicant]
Öst, Anita et al. “Retinol binding protein 4 attenuates insulin-induced phosphorylation of IRS1 and ERK½ in primary human adipocytes”, The FASB Journal, Nov. 2007 vol. 21, p. 3696-3704. [cited by applicant]
Samaras, Katherine et al. “Subcutaneous and visceral adipose tissue gene expression of serum adipokines that predict type 2 diabetes”, Obesity, Mar. 2010 vol. 18, p. 884-889. [cited by applicant]
Takebayashi, Kohzo et al. “Retinol binding protein-4 levels and clinical features of type 2 diabetes patients”, Journal of Clinical Endocrinology and Metabolism, Jul. 2007 vol. 92, p. 2712-2719. [cited by applicant]
Yang, Qin et al. “Serum retinol binding protein 4 contributes to insulin resistance in obesity and type 2”, Nature, Jul. 2005 vol. 436, p. 356-362. [cited by applicant]