Peptide conjugates of GLP-1 receptor agonists and gastrin and their use

Patent metadata

Field	Value
Publication number	US-9089538-B2
Application number	US-201113642349-A
Country	US
Kind code	B2
Filing date	Apr 27, 2011
Priority date	Apr 27, 2010
Publication date	Jul 28, 2015
Grant date	Jul 28, 2015

Abstract

The present invention relates, inter alia, to certain peptide conjugates, and to the use of the conjugates in the treatment of a variety of diseases or disorders, including diabetes (type 1 and/or type 2) and diabetes-related diseases or disorders.

First claim

The invention claimed is:

1. A peptide conjugate or pharmaceutically acceptable salt thereof having the formula
R 1 —Z a -L a -Y a —R 2   (I)

wherein
R 1 is H, C 1-4 alkyl, acetyl, formyl, benzoyl or trifluoroacetyl;
R 2 is OH or NH 2 ;
Z a is a peptide sequence having the formula IVa
His-Gly-Glu-Gly-Thr-Phe-Thr-Ser-Z9-Leu-Ser-Z12-Gln-Met-Glu-Z16-Glu-Ala-Val-Arg-Leu-Phe-Ile-Glu-Trp-Leu-Z27-Z28  (IVa)

wherein
Z9 is selected from Glu and Asp;
Z12 is selected from Lys and Orn;
Z16 is selected from Glu and Lys;
Z27 is selected from Lys and Orn;
Z28 is selected from Asn and Asp or is absent;
L a is a sequence having the formula IVb
L1-L2-L3-L4  (IVb)

wherein
L1 is selected from Peg3, Gln, Cys, Lys and Orn or is absent;
L2 is selected from Peg3, Gln, Cys, Lys and Orn or is absent;
L3 is selected from Peg3, Gln, Cys, Lys and Orn or is absent;
L4 is selected from Peg3, Gln, Cys, Lys and Orn or is absent;
Y a is a peptide sequence having the formula IVc
Y12-Y13-Trp-Leu-Asp-Phe  (IVc)

wherein
Y12 is Tyr or is absent; and
Y13 is Gly or is absent.

2. The peptide conjugate or pharmaceutically acceptable salt thereof according to claim 1 , wherein Z12 is Lys and Z16 is Glu, and wherein said residues form an intramolecular bridge.

3. The peptide conjugate or pharmaceutically acceptable salt thereof according to claim 2 , wherein the intramolecular bridge is a lactam ring.

4. The peptide conjugate or pharmaceutically acceptable salt thereof according to claim 1 , wherein Z a has at least 85% identity to native exendin-4, e.g. at least 90 or 95%.

5. The peptide conjugate or pharmaceutically acceptable salt thereof according to claim 1 , wherein the peptide of formula I is selected from the group consisting of:
Exendin-4(1-28)-[Leu4]Gastrin6,
Exendin-4(1-28)-K-[Leu4]Gastrin6, and
Exendin-4(1-28)-Peg3-Peg3-[Leu4]Gastrin6.

6. The peptide conjugate or pharmaceutically acceptable salt thereof according to claim 5 , wherein the peptide of formula I is selected from the group consisting of:
Exendin-4(1-28)-Peg3-Peg3-[Leu3]Gastrin5,
Exendin-4(1-27)-Peg3-Peg3-[Leu4]Gastrin6,
Exendin-4(1-28)-Peg3-Peg3-[Leu2]Gastrin4,
[Orn12]Exendin-4(1-28)-Peg3-Peg3-[Leu4]Gastrin6,
[Orn27]Exendin-4(1-28)-Peg3-Peg3-[Leu4]Gastrin6,
[Asp28]Exendin-4(1-28)-Peg3-Peg3-[Leu4]Gastrin6,
Exendin-4(1-28)-Peg3-[Leu4]Gastrin6,
Exendin-4(1-28)-[Leu4]Gastrin6,
Exendin-4(1-27)-Peg3-[Leu4]Gastrin6,
Exendin-4(1-27)-Peg3-[Leu3]Gastrin5,
Exendin-4(1-27)-Peg3-[Leu2]Gastrin4,
[Lys16]Exendin-4(1-28)-Peg3-Peg3-[Leu4]Gastrin6, and
Exendin-4(1-28)-Peg3-K-Peg3-[Leu4]Gastrin6.

7. A method of treating a disease or disorder selected from the group consisting of: type 1 diabetes, type 2 diabetes, pre-diabetes, Insulin resistance syndrome, impaired glucose tolerance (IGT), disease states associated with elevated blood glucose levels, hyperglycemia, hypertension, atherogenic dyslipidemia, arteriosclerosis (e.g. atherosclerosis), coronary heart disease, peripheral artery disease, stroke, microvascular disease, gastric disease, metabolic syndrome, cancer (e.g. colon cancer), inflammatory bowel disease (IBD) and irritable bowel syndrome (IBS), in a subject in need thereof, the method comprising administering to said subject a therapeutically effective amount of a peptide conjugate or pharmaceutically acceptable salt thereof according to claim 1 .

8. A method according to claim 7 , wherein said subject is a human.

9. A pharmaceutical composition comprising a peptide conjugate, or pharmaceutically acceptable salt thereof, according to claim 1 , together with a pharmaceutically acceptable carrier, excipient or vehicle.

10. A method for promoting weight loss in an individual in need thereof, said method comprising administering to said individual a therapeutically effective amount of a peptide conjugate or pharmaceutically acceptable salt thereof according to claim 1 .

11. A method of improving circulating glucose levels, glucose tolerance and/or circulating cholesterol levels, lowering circulating LDL levels, and/or increasing HDL/LDL ratio in an individual in need thereof, said method comprising administering to said individual a therapeutically effective amount of a peptide conjugate or pharmaceutically acceptable salt thereof according to claim 1 .

12. The method according to claim 7 , wherein the compound is administered as part of a combination therapy with an agent for treatment of a condition selected from the group consisting of: diabetes, obesity, dyslipidaemia, or hypertension.

13. The method according to claim 12 wherein the agent for treatment of diabetes is selected from the group consisting of: metformin, a sulfonylurea, a glinide, a DPP-IV inhibitor, a glitazone, insulin and an insulin analogue.

14. The method according to claim 12 wherein the agent for treatment of obesity is selected from the group consisting of a glucagon-like peptide receptor 1 agonist, peptide YY or analogue thereof, cannabinoid receptor 1 antagonist, lipase inhibitor, melanocortin receptor 4 agonist, and melanin concentrating hormone receptor 1 antagonist.

15. The method according to claim 12 wherein the agent for treatment of hypertension is selected from the group consisting of an angiotensin-converting enzyme inhibitor, angiotensin II receptor blocker, diuretic, beta-blocker, and calcium channel blocker.

16. The method according to claim 12 wherein the agent for treatment of dyslipidaemia is selected from the group consisting of a statin, a fibrate, a niacin and a cholesterol absorption inhibitor.

17. The method of improving circulating glucose levels, glucose tolerance and/or circulating cholesterol levels, lowering circulating LDL levels, and/or increasing HDL/LDL ratio in an individual in need thereof, said method comprising administering to said individual a therapeutically effective amount of a peptide conjugate or pharmaceutically acceptable salt thereof according to claim 1 , wherein a drug holiday dosage regimen is used.

18. A process for manufacturing a compound according to claim 1 , wherein said manufacture is by peptide synthesis or recombinant synthesis.

19. A device comprising at least one peptide conjugate, or pharmaceutically acceptable salt thereof, according to claim 1 , for delivery of the peptide conjugate to a subject.

20. A kit comprising at least one peptide conjugate, or pharmaceutically acceptable salt thereof, according to claim 1 , and further comprising packaging or instructions for use.

21. The method of claim 10 , wherein the compound is administered as part of a combination therapy with an agent for treatment of a condition selected from the group consisting of diabetes, obesity, dyslipidaemia, and hypertension.

22. The method of claim 21 , wherein the agent for treatment of diabetes is selected from the group consisting of metformin, a sulfonylurea, a glinide, a DPP-IV inhibitor, a glitazone, insulin, and an insulin analogue.

23. The method of claim 21 , wherein the agent for treatment of obesity is selected from the group consisting of a glucagon-like peptide receptor 1 agonist, peptide YY and analogues thereof, cannabinoid receptor 1 antagonist, lipase inhibitor, melanocortin receptor 4 agonist, and melanin concentrating hormone receptor 1 antagonist.

24. The method of claim 21 , wherein the agent for treatment of hypertension is selected from the group consisting of an angiotensin-converting enzyme inhibitor, a

Assignees

• Neerup Trine Skovlund Ryge
• Østerlund Torben
• Tolborg Jakob Lind
• Fosgerau Keld
• MÅRTENSSON Ulrika
• Brorson Marianne
• Rolsted Kamilla
• Zealand Pharma As

Inventors

• Neerup Trine Skovlund Ryge
• Østerlund Torben
• Tolborg Jakob Lind
• Fosgerau Keld
• MÅRTENSSON Ulrika
• Brorson Marianne
• Rolsted Kamilla

Classifications

• A61P35/00

  Antineoplastic agents · CPC title

• A61P9/14

  Vasoprotectives; Antihaemorrhoidals; Drugs for varicose therapy; Capillary stabilisers · CPC title

• A61P5/50

  for increasing or potentiating the activity of insulin · CPC title

• A61P9/12

  Antihypertensives · CPC title

• A61P9/10

  for treating ischaemic or atherosclerotic diseases, e.g. antianginal drugs, coronary vasodilators, drugs for myocardial infarction, retinopathy, cerebrovascula insufficiency, renal arteriosclerosis · CPC title