WO2013092703A2 - Glucagon analogues - Google Patents
Glucagon analogues Download PDFInfo
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- WO2013092703A2 WO2013092703A2 PCT/EP2012/076137 EP2012076137W WO2013092703A2 WO 2013092703 A2 WO2013092703 A2 WO 2013092703A2 EP 2012076137 W EP2012076137 W EP 2012076137W WO 2013092703 A2 WO2013092703 A2 WO 2013092703A2
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- MASNOZXLGMXCHN-ZLPAWPGGSA-N glucagon Chemical class C([C@@H](C(=O)N[C@H](C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CC=1C2=CC=CC=C2NC=1)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCSC)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H]([C@@H](C)O)C(O)=O)C(C)C)NC(=O)[C@H](CC(O)=O)NC(=O)[C@H](CCC(N)=O)NC(=O)[C@H](C)NC(=O)[C@H](CCCNC(N)=N)NC(=O)[C@H](CCCNC(N)=N)NC(=O)[C@H](CO)NC(=O)[C@H](CC(O)=O)NC(=O)[C@H](CC(C)C)NC(=O)[C@H](CC=1C=CC(O)=CC=1)NC(=O)[C@H](CCCCN)NC(=O)[C@H](CO)NC(=O)[C@H](CC=1C=CC(O)=CC=1)NC(=O)[C@H](CC(O)=O)NC(=O)[C@H](CO)NC(=O)[C@@H](NC(=O)[C@H](CC=1C=CC=CC=1)NC(=O)[C@@H](NC(=O)CNC(=O)[C@H](CCC(N)=O)NC(=O)[C@H](CO)NC(=O)[C@@H](N)CC=1NC=NC=1)[C@@H](C)O)[C@@H](C)O)C1=CC=CC=C1 MASNOZXLGMXCHN-ZLPAWPGGSA-N 0.000 title abstract description 33
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- 238000005897 peptide coupling reaction Methods 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 239000002953 phosphate buffered saline Substances 0.000 description 1
- 230000035790 physiological processes and functions Effects 0.000 description 1
- 125000003386 piperidinyl group Chemical group 0.000 description 1
- 239000013612 plasmid Substances 0.000 description 1
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- 229920000729 poly(L-lysine) polymer Polymers 0.000 description 1
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- GCYXWQUSHADNBF-AAEALURTSA-N preproglucagon 78-108 Chemical compound C([C@@H](C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](C)C(=O)N[C@@H](CC=1C2=CC=CC=C2NC=1)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](CCCCN)C(=O)NCC(=O)N[C@@H](CCCNC(N)=N)C(=O)NCC(O)=O)NC(=O)[C@H](CCC(O)=O)NC(=O)[C@H](CCCCN)NC(=O)[C@H](C)NC(=O)[C@H](C)NC(=O)[C@H](CCC(N)=O)NC(=O)CNC(=O)[C@H](CCC(O)=O)NC(=O)[C@H](CC(C)C)NC(=O)[C@H](CC=1C=CC(O)=CC=1)NC(=O)[C@H](CO)NC(=O)[C@H](CO)NC(=O)[C@@H](NC(=O)[C@H](CC(O)=O)NC(=O)[C@H](CO)NC(=O)[C@@H](NC(=O)[C@H](CC=1C=CC=CC=1)NC(=O)[C@@H](NC(=O)CNC(=O)[C@H](CCC(O)=O)NC(=O)[C@H](C)NC(=O)[C@@H](N)CC=1N=CNC=1)[C@@H](C)O)[C@@H](C)O)C(C)C)C1=CC=CC=C1 GCYXWQUSHADNBF-AAEALURTSA-N 0.000 description 1
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- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/435—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- C07K14/575—Hormones
- C07K14/605—Glucagons
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
- A61K38/16—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- A61K38/17—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- A61K38/22—Hormones
- A61K38/26—Glucagons
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K45/00—Medicinal preparations containing active ingredients not provided for in groups A61K31/00 - A61K41/00
- A61K45/06—Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca
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- A—HUMAN NECESSITIES
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- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P1/00—Drugs for disorders of the alimentary tract or the digestive system
- A61P1/16—Drugs for disorders of the alimentary tract or the digestive system for liver or gallbladder disorders, e.g. hepatoprotective agents, cholagogues, litholytics
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- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P29/00—Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]
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- A—HUMAN NECESSITIES
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- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P3/00—Drugs for disorders of the metabolism
- A61P3/04—Anorexiants; Antiobesity agents
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P3/00—Drugs for disorders of the metabolism
- A61P3/06—Antihyperlipidemics
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P3/00—Drugs for disorders of the metabolism
- A61P3/08—Drugs for disorders of the metabolism for glucose homeostasis
- A61P3/10—Drugs for disorders of the metabolism for glucose homeostasis for hyperglycaemia, e.g. antidiabetics
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P9/00—Drugs for disorders of the cardiovascular system
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P9/00—Drugs for disorders of the cardiovascular system
- A61P9/10—Drugs for disorders of the cardiovascular system for treating ischaemic or atherosclerotic diseases, e.g. antianginal drugs, coronary vasodilators, drugs for myocardial infarction, retinopathy, cerebrovascula insufficiency, renal arteriosclerosis
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- A—HUMAN NECESSITIES
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- A—HUMAN NECESSITIES
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- A61K38/00—Medicinal preparations containing peptides
Definitions
- the present invention relates to glucagon analogues and their medical use, for example in the treatment of excess food intake, obesity and excess weight and associated conditions, and elevated cholesterol.
- the compounds may also be used to improve glycaemic control and/or for the treatment of diabetes.
- Preproglucagon is a 158 amino acid precursor polypeptide that is differentially processed in the tissues to form a number of structurally related proglucagon-derived peptides, including glucagon (Glu), glucagon-like peptide-1 (GLP-1 ), glucagon-like peptide-2 (GLP-2), and oxyntomodulin (OXM). These molecules are involved in a wide variety of physiological functions, including glucose homeostasis, insulin secretion, gastric emptying and intestinal growth, as well as regulation of food intake.
- Glu glucagon
- GLP-1 glucagon-like peptide-1
- GLP-2 glucagon-like peptide-2
- OXM oxyntomodulin
- Glucagon is a 29-amino acid peptide that corresponds to amino acids 53 to 81 of pre-proglucagon and has the sequence His-Ser-Gln-Gly-Thr-Phe-Thr-Ser-Asp-Tyr-Ser-Lys-Tyr-Leu-Asp-Ser-Arg-Arg- Ala-Gln-Asp-Phe-Val-Gln-Trp-Leu-Met-Asn-Thr.
- Oxyntomodulin (OXM) is a 37 amino acid peptide which includes the complete 29 amino acid sequence of glucagon with an octapeptide
- carboxyterminal extension (amino acids 82 to 89 of pre-proglucagon, having the sequence Lys-Arg- Asn-Arg-Asn-Asn-lle-Ala and termed "intervening peptide 1 " or IP-1 ; the full sequence of human oxyntomodulin is thus His-Ser-Gln-Gly-Thr-Phe-Thr-Ser-Asp-Tyr-Ser-Lys-Tyr-Leu-Asp-Ser-Arg-Arg- Ala-Gln-Asp-Phe-Val-Gln-Trp-Leu-Met-Asn-Thr-Lys-Arg-Asn-Arg-Asn-Asn-lle-Ala).
- the major biologically active fragment of GLP-1 is produced as a 30-amino acid, C-terminally amidated peptide that corresponds to amino acids 98 to 127 of pre-proglucagon.
- Glucagon helps maintain the level of glucose in the blood by binding to glucagon receptors on hepatocytes, causing the liver to release glucose - stored in the form of glycogen - through glycogenolysis. As these stores become depleted, glucagon stimulates the liver to synthesize additional glucose by gluconeogenesis. This glucose is released into the bloodstream, preventing the development of hypoglycemia.
- OXM is released into the blood in response to food ingestion and in proportion to meal calorie content.
- OXM has been shown to suppress appetite and inhibit food intake in humans (Cohen et al, Journal of Endocrinology and Metabolism, 88, 4696-4701 , 2003; WO 2003/022304).
- OXM must also affect body weight by another mechanism, since rats treated with oxyntomodulin show less body weight gain than pair-fed rats (Bloom, Endocrinology 2004, 145, 2687).
- Treatment of obese rodents with OXM also improves their glucose tolerance (Parlevliet et al, Am J Physiol Endocrinol Metab, 294, E142-7, 2008) and suppresses body weight gain (WO 2003/022304).
- OXM activates both the glucagon and the GLP-1 receptors with a two-fold higher potency for the glucagon receptor over the GLP-1 receptor, but is less potent than native glucagon and GLP-1 on their respective receptors.
- Human glucagon is also capable of activating both receptors, though with a strong preference for the glucagon receptor over the GLP-1 receptor.
- GLP-1 on the other hand is not capable of activating glucagon receptors.
- the mechanism of action of oxyntomodulin is not well understood. In particular, it is not known whether some of the extrahepatic effects of the hormone are mediated through the GLP-1 and glucagon receptors, or through one or more unidentified receptors.
- Diabetes especially type 2 diabetes
- glycaemic control is needed.
- Obesity is a globally increasing health problem is associated with various diseases, particularly cardiovascular disease (CVD), type 2 diabetes, obstructive sleep apnea, certain types of cancer, and osteoarthritis.
- CVD cardiovascular disease
- type 2 diabetes type 2 diabetes
- obstructive sleep apnea certain types of cancer
- osteoarthritis As a result, obesity has been found to reduce life expectancy.
- WHO projections by the World Health Organization there are 400 million adults (age > 15) classified as obese worldwide. In the US, obesity is now believed to be the second-leading cause of preventable death after smoking.
- the rise in obesity drives an increase in diabetes, and approximately 90% of people with type 2 diabetes may be classified as obese. There are 246 million people worldwide with diabetes, and by 2025 it is estimated that 380 million will have diabetes. Many have additional cardiovascular risk factors, including high/aberrant LDL and triglycerides and low HDL.
- metabolic diseases e.g. hypertension, atherogenic dyslipidemia, atherosclerosis, coronary heart disease, stroke and obesity linked inflammation. Accordingly, a treatment for the underlying metabolic disease might have a positive impact on follow-on conditions. Accordingly, there is a strong medical need for treating metabolic and associated diseases such as obesity, dyslipidemia and diabetes.
- the invention provides a compound having the formula:
- R 1 is H , d-4 alkyl, acetyl, formyl, benzoyl or trifluoroacetyl;
- R 2 is OH or NH 2 ;
- X is a peptide which has the formula I :
- X2 is selected from Ser, D-Ser and Aib;
- X3 is selected from Gin, His and Pro;
- X12 is selected from Lys and Y
- X16 is selected from Glu and Y;
- X20 is selected from Lys and Y;
- X24 is selected from Glu and Y;
- X27 is selected from Leu and Y;
- X28 is selected from Ser and Y or is absent;
- X29 is Ala or absent; wherein at least one of X12, X1 6, X17, X20, X27 and X28 is Y; wherein each residue Y is independently selected from Lys, Cys and Orn; wherein the side chain of at least one amino acid residue Y is conjugated to a lipophilic substituent having the formula:
- Z 1 Z 2 wherein Z 1 is a lipophilic moiety, Z 2 is a spacer, and Z 1 is conjugated to the side chain of Y via Z 2 ; and Z is absent or is a sequence of 1 -20 amino acid units independently selected from the group consisting of Ala, Leu, Ser, Thr, Tyr, Cys, Glu, Lys, Arg, Dbu, Dpr and Orn; or a pharmaceutically acceptable salt thereof.
- Peptide X may have the formula la:
- X2 is selected from Ser, D-Ser and Aib;
- X16 is selected from Glu and Y;
- X20 is selected from Lys and Y;
- X24 is selected from Glu and Y;
- X27 is selected from Leu and Y;
- X28 is selected from Ser and Y.
- Peptide X may have the sequence:
- peptide X may be: H-Aib-QGTFTSDYSKYLDK * RRAKDFIEWLLSA;
- the compound may be: H-H-Aib-QGTFTSDYSKYLD-K(Hexadecanoyl-isoGlu)-RRAKDFIEWLLSA-NH 2 [Compound 1 ] ; H-H-Aib-QGTFTSDYSKYLDERRA-K(Hexadecanoyl-isoGlu)-DFIEWLLSA-NH 2 [Compound 2]; H-H-Aib-QGTFTSDYSKYLDERRAKDFI-K(Hexadecanoyl-isoGlu)-WLLSA-NH 2 [Compound 3]; H-HSQGTFTSDYSKYLDERRAKDFI-K(Hexadecanoyl-isoGlu)-WLLSA-NH 2 [Compound 4] ;
- the invention provides a compound having the formula
- R 1 -X-Z-R 2 wherein R 1 is H , d-4 alkyl, acetyl, formyl, benzoyl or trifluoroacetyl; R 2 is OH or NH 2 ;
- X is a peptide which has the formula II :
- X2 is selected from Ser, D-Ser and Aib;
- X3 is selected from Gin, His and Pro;
- X12 is selected from Arg, Lys and Y;
- X16 is selected from Glu and Y;
- X17 is selected from Arg and Y;
- X20 is selected from Lys, Arg and Y;
- X24 is selected from Glu and Y;
- X27 is selected from Leu and Y;
- X28 is selected from Ser and Y or absent;
- X29 is Ala or absent; wherein X12 and/or X20 is Arg; wherein at least one of X12, X1 6, X17, X20, X24, X27 and X28 is Y; wherein each residue Y is independently selected from Lys, Cys and Orn; wherein the side chain of at least one amino acid residue Y is conjugated to a lipophilic substituent having the formula:
- Z 1 Z 2 wherein Z 1 is a lipophilic moiety, Z 2 is a spacer, and Z 1 is conjugated to the side chain of Y via Z 2 ; and Z is absent or is a sequence of 1 -20 amino acid units independently selected from the group consisting of Ala, Leu, Ser, Thr, Tyr, Cys, Glu, Lys, Arg, Dbu, Dpr and Orn; or a pharmaceutically acceptable salt thereof.
- Peptide X may have the formula I la:
- X2 is selected from Ser, D-Ser and Aib;
- X3 is selected from Gin, His and Pro;
- X16 is selected from Glu and Y;
- X17 is selected from Arg and Y;
- X20 is selected from Arg and Lys
- X24 is selected from Glu and Y.
- Peptide X may have the formula l ib: His-X2-X3-Gly-Thr-Phe-Thr-Ser-Asp-Tyr-Ser-Arg-Tyr-Leu-Asp-Glu-X1 7-Arg-Ala-Arg-Asp-Phe-lle- Glu-Trp-Leu-Leu-Ser-Ala (l ib) wherein
- X2 is selected from Ser, D-Ser and Aib;
- X3 is selected from Gin, His and Pro;
- X17 is Y.
- Peptide X may have the sequence:
- X may be:
- the compound may be:
- the invention provides a compound having the formula R 1 -X-Z-R 2 wherein
- R 1 is H , d-4 alkyl, acetyl, formyl, benzoyl or trifluoroacetyl;
- R 2 is OH or NH 2 ;
- X is a peptide which has the formula II I :
- X2 is selected from Ser, D-Ser and Aib;
- X3 is selected from Gin, His and Pro;
- X12 is selected from Lys and Y
- X16 is selected from Glu and Y;
- X17 is selected from Arg and Y;
- X20 is selected from Lys and Y;
- X24 is selected from Glu and Y;
- X27 is selected from Leu and Y;
- X28 is selected from Ser and Y or is absent;
- X29 is Ala or absent; wherein X3 is His or Pro when X2 is Ser or Aib, and X2 is D-Ser when X3 is Gin; wherein at least one of X12, X16, X17, X20, X24, X27 and X28 is Y; wherein each residue Y is independently selected from Lys, Cys and Orn; wherein the side chain of at least one amino acid residue Y of X is conjugated to a lipophilic substituent having the formula:
- Z 1 Z 2 wherein Z 1 is a lipophilic moiety, Z 2 is a spacer, and Z 1 is conjugated to the side chain of Y via Z 2 ; and Z is absent or is a sequence of 1 -20 amino acid units independently selected from the group consisting of Ala, Leu, Ser, Thr, Tyr, Cys, Glu, Lys, Arg, Dbu, Dpr and Orn; or a pharmaceutically acceptable salt thereof.
- Peptide X may have the formula I l ia:
- X2 is selected from Ser, D-Ser and Aib;
- X3 is selected from Gin, His and Pro;
- X12 is selected from Lys and Y
- X16 is selected from Glu and Y;
- X17 is selected from Arg and Y;
- X20 is selected from Lys and Y;
- X24 is selected from Glu and Y.
- Peptide X may have the formula 11 lb: His-X2-X3-Gly-Thr-Phe-Thr-Ser-Asp-Tyr-Ser-Lys-Tyr-Leu-Asp-Glu-X1 7-Arg-Ala-Lys-Asp-Phe-lle- Glu-Trp-Leu-Leu-Ser-Ala (1 Mb) wherein
- X2 is selected from Ser, D-Ser and Aib;
- X3 is selected from Gin, His and Pro;
- X17 is Y.
- Peptide X may have the sequence: H-DSer-QGTFTSDYSKYLDEKRAKDFIEWLLSA;
- Peptide X may be:
- the compound may be:
- H-H-DSer-HGTFTSDYSKYLDE-K(Hexadecanoyl-isoGlu)-RAKDFIEWLLSA-NH2 [Compound 19] ; H-HSPGTFTSDYSKYLDE-K(Hexadecanoyl-isoGlu)-RAKDFIEWLLSA-NH2 [Compound 20] ; or H-H-DSer-PGTFTSDYSKYLDE-K(Hexadecanoyl-isoGlu)-RAKDFIEWLLSA-NH2 [Compound 21 ] ; or a pharmaceutically acceptable salt thereof.
- peptide X contains one or more than one residue Y
- the or each residue Y may be Lys.
- the invention further provides an isolated nucleic acid (which may be DNA or RNA) encoding a peptide X-Z as defined in any of the three aspects of the invention described above, i.e. the peptide backbone of any of these compounds of the invention, before addition of the lipophilic substituent to any residue Y. (Of course, this may only be appropriate when each residue in X-Z is one of the 20 naturally occurring amino acids which can be incorporated into protein by nucleic acid translation.) Further provided is an expression vector comprising such a nucleic acid, and a host cell containing such a nucleic acid or expression vector.
- the invention provides the compounds: H-H-Aib-QGTFTSDYSKYLDE-K(Octadecanoyl-isoGlu)-RAKDFIEWLLSA-NH 2 [Compound 22] ;
- H-H-Aib-QGTFTS DYSKYLDE-K(Hexadecanoyl-isoGlu)-RAKDFIEWLLSA-OH [Compound 23] ; and H-H-Aib-QGTFTSDYSKYLDE-K(Octadecanoyl-isoGlu)-RAKDFIEWLLSA-OH [Compound 24].
- the present invention further provides a composition comprising a compound, nucleic acid, expression vector or host cell of the invention in admixture with a carrier.
- the composition is a pharmaceutically acceptable composition and the carrier is a pharmaceutically acceptable carrier.
- the composition may contain a pharmaceutically acceptable salt of the compound of the invention.
- the present invention provides a compound or composition of any aspect of the invention as described above for use in a method of medical treatment.
- the compounds described find use, inter alia, in preventing weight gain or promoting weight loss. By “preventing” is meant inhibiting or reducing when compared to the absence of treatment, and is not necessarily meant to imply complete cessation of weight gain.
- the peptides may cause a decrease in food intake and/or increased energy expenditure, resulting in the observed effect on body weight.
- the compounds of the invention may have a beneficial effect on circulating cholesterol levels, being capable of lowering circulating LDL levels and increasing H DL/LDL ratio.
- the compounds may additionally have a beneficial effect on glycaemic control, independently of their effect on body weight. It is envisaged that such compounds may be therapeutically useful in conditions which are not directly associated with or caused by excess weight or obesity, such as type I diabetes and gestational diabetes.
- the compounds of the invention can be used for direct or indirect therapy of any condition caused or characterised by excess body weight, such as the treatment and/or prevention of obesity, morbid obesity, obesity linked inflammation, obesity linked gallbladder disease, obesity induced sleep apnea. They may also be used for the prevention of metabolic syndrome, type I diabetes, type I I diabetes, hypertension, atherogenic dyslipidemia, atherosclerosis, arteriosclerosis, coronary heart disease, or stroke. Their effects in these conditions may be as a result of or associated with their effect on body weight, or may be independent thereof.
- the invention provides a compound of the invention for use in a method of preventing weight gain or promoting weight loss in an individual in need thereof. Also provided is the use of a compound of the invention in the manufacture of a medicament for preventing weight gain or promoting weight loss in an individual. Also provided is a method of preventing weight gain or promoting weight loss in an individual in need thereof comprising administering a compound of the invention to the individual.
- the invention further provides a compound of the invention for use in a method of lowering circulating LDL levels, and/or increasing HDL/LDL ratio in an individual in need thereof. Also provided is the use of a compound of the invention in the manufacture of a medicament for lowering circulating LDL levels, and/or increasing HDL/LDL ratio in an individual. Also provided is a method of lowering circulating LDL levels, and/or increasing HDL/LDL ratio in an individual in need thereof comprising administering a compound of the invention to the individual.
- the invention further provides a compound of the invention for use in a method of prevention or treatment of a condition caused or characterised by excess body weight. Also provided is the use of a compound of the invention in the manufacture of a medicament for prevention or treatment of a condition caused or characterised by excess body weight. Also provided is a method of prevention or treatment of a condition caused or characterised by excess body weight in an individual in need thereof comprising administering a compound of the invention to the individual.
- the invention further provides a compound of the invention for use in a method of prevention and/or treatment of obesity, morbid obesity, morbid obesity prior to surgery, obesity linked inflammation, obesity linked gallbladder disease, obesity induced sleep apnea, type I diabetes, type I I diabetes, metabolic syndrome, hypertension, atherogenic dyslipidemia, atherosclerois, arteriosclerosis, coronary heart disease, peripheral artery disease, stroke or microvascular disease in an individual in need thereof. Also provided is the use of a compound of the invention in the manufacture of a medicament for prevention or treatment of such a condition. Also provided is a method of prevention or treatment of such a condition in an individual in need thereof comprising administering a compound of the invention to the individual.
- the invention further provides a compound of the invention for use in conjunction with an agent for treatment of obesity, dyslipidemia, diabetes, or hypertension. Also provided is the use of a compound of the invention in the manufacture of a medicament for use in conjunction with an agent for treatment of obesity, dyslipidemia, diabetes, or hypertension. Also provided is a method of treatment comprising administration of a compound of the invention in conjunction with an agent for treatment of obesity, dyslipidemia, diabetes, or hypertension to an individual in need thereof. Also provided is a pharmaceutical composition comprising a compound of the invention and an agent for treatment of obesity, dyslipidemia, diabetes, or hypertension.
- the agent for treatment of obesity may be a glucagon-like peptide receptor 1 agonist, peptide YY receptor agonist or analogue thereof, cannabinoid receptor 1 antagonist, lipase inhibitor, melanocortin receptor 4 agonist, or melanin concentrating hormone receptor 1 antagonist.
- the agent for treatment of hypertension may be an angiotensin-converting enzyme inhibitor, angiotensin II receptor blocker, diuretic, beta-blocker, or calcium channel blocker.
- the agent for treatment of dyslipidaemia may be a statin, a fibrate, a niacin and/or a cholesterol absorbtion inhibitor.
- the agent for treatment of diabetes may be metformin, a sulfonylurea, a glinide, a DPP-IV inhibitor, a glitazone, a GLP-1 agonist, insulin or an insulin analogue.
- the invention extends to expression vectors comprising the above-described nucleic acid sequence, optionally in combination with sequences to direct its expression, and host cells containing the expression vectors.
- the host cells are capable of expressing and secreting the compound of the invention, or the peptide backbone X-Z of the compound of the invention.
- the present invention provides a method of producing the compound, the method comprising culturing the host cells under conditions suitable for expressing the compound and purifying the compound thus produced. The method may comprise the further step of adding the lipophilic substituent at the appropriate amino acid position.
- the invention further provides a nucleic acid of the invention, an expression vector of the invention, or a host cell capable of expressing and secreting a compound of the invention, for use in a method of medical treatment.
- the nucleic acid, expression vector and host cells may be used for treatment of any of the disorders described herein which may be treated with the compounds of the invention themselves.
- References to a therapeutic composition comprising a compound of the invention, administration of a compound of the invention, or any therapeutic use thereof, should therefore be construed to encompass the equivalent use of a nucleic acid, expression vector or host cell of the invention, except where the context demands otherwise.
- the conventional one letter and three letter codes for naturally occurring amino acids are used, as well as generally accepted three letter codes for other amino acids, such as Aib (a-aminoisobutyric acid), Orn (ornithine), Dbu (2,4 diaminobutyric acid), D-Ser (D- form of Ser) and Dpr (2,3-diaminopropanoic acid).
- Aib a-aminoisobutyric acid
- Orn ornithine
- Dbu 2,4 diaminobutyric acid
- D-Ser D- form of Ser
- Dpr 2,3-diaminopropanoic acid
- native glucagon refers to native human glucagon having the sequence H-His-Ser-Gln- Gly-Thr-Phe-Thr-Ser-Asp-Tyr-Ser-Lys-Tyr-Leu-Asp-Ser-Arg-Arg-Ala-Gln-Asp-Phe-Val-Gln-Trp-Leu- Met-Asn-Thr-OH (SEQ ID NO: 1 ).
- the invention provides compounds as defined above.
- sequence of peptide X can only be varied at those positions which are stated to allow variation, and only within the options stated.
- Amino acids within the sequence X can be considered to be numbered consecutively from 1 to 29 in the conventional N-terminal to C-terminal direction.
- Reference to a "position" within X should be construed accordingly, as should reference to positions within native human glucagon and other molecules.
- the residues at positions 27, 28 and 29 of native glucagon appear to provide significant selectivity of the peptide for the glucagon receptor.
- the residues present at these positions in the compounds of the invention may increase potency at and/or selectivity for the GLP-1 receptor, potentially without significant reduction of potency at the glucagon receptor.
- Substitution of the naturally-occurring Met residue at position 27 e.g. with Leu or Lys, especially with Leu
- residue(s) Y at these positions may independently be Cys, Orn or Lys. More particularly, one or more of these residues may be Cys. Further, one or more of the residues at these positions may be Lys. Where the compound contains more than one residue Y, they may be the same (all Cys, all Orn, or all Lys) or different. In some embodiments it may be desirable that each peptide X contains just one residue Y. The or each residue Y may be Lys.
- a compound of the invention may comprise a C-terminal peptide sequence Z of 1 -20 amino acids, for example to stabilise the conformation and/or secondary structure of the glucagon analogue peptide, and/or to render the glucagon analogue peptide more resistant to enzymatic hydrolysis, e.g. as described in W099/46283.
- Z represents a peptide sequence of 1 -20 amino acid residues, e.g. in the range of 1 - 15, more preferably in the range of 1 -10, in particular in the range of 1 -7 amino acid residues, e.g., 1 , 2, 3, 4, 5, 6 or 7 amino acid residues, such as 6 amino acid residues.
- Each of the amino acid residues in the peptide sequence Z may independently be selected from Ala, Leu, Ser, Thr, Tyr, Cys, Glu, Lys, Arg, Dbu (2,4 diaminobutyric acid), Dpr (2,3-diaminopropanoic acid) and Orn
- amino acid residues are selected from Ser, Thr, Tyr, Glu, Lys, Arg, Dbu, Dpr and Orn, more preferably selected exclusively from Glu, Lys, and Cys.
- the above-mentioned amino acids may have either D- or L-configuration, but preferably have an L-configuration.
- sequences Z are sequences of three, four, five, six or seven consecutive lysine residues (i.e. Lys 3 , Lys 4 , Lys 5 , Lys 6 or Lys 7 ), and particularly five or six consecutive lysine residues.
- Other exemplary sequences of Z are shown in WO 01 /04156.
- the C-terminal residue of the sequence Z may be a Cys residue. This may assist in modification (e.g. PEGylation, or conjugation to albumin) of the compound.
- the peptide sequence Z has no more than 25% sequence identity with the corresponding sequence of the IP-1 portion of human OXM (which has the sequence Lys-Arg-Asn-Arg-Asn-Asn-lle-Ala).
- Percent (%) amino acid sequence identity of a given peptide or polypeptide sequence with respect to another polypeptide sequence (e.g. IP-1 ) is calculated as the percentage of amino acid residues in the given peptide sequence that are identical with correspondingly positioned amino acid residues in the corresponding sequence of that other polypeptide when the two are aligned with one another, introducing gaps for optimal alignment if necessary.
- Z is absent in the compound of the invention.
- One or more of the side chains in amino acid residue(s) Y of peptide X is conjugated to a lipophilic substituent Z 1 or Z 1 Z 2 .
- the lipophilic substituent Z 1 may be covalently bonded directly to an atom in the amino acid side chain, or alternatively may comprise a lipophilic moiety Z 1 conjugated to the amino acid side chain by a spacer Z 2 .
- a lipophilic substituent Z 1 or Z 1 Z 2 may additionally be conjugated to a side chain of an amino acid which is part of the peptide Z if desired.
- the lipophilic substituent binds albumin in the blood stream, thus shielding the compounds of the invention from enzymatic degradation and thereby enhancing the half-life of the compounds.
- the spacer when present, is used to provide spacing between the compound and the lipophilic substituent.
- the lipophilic substituent may be attached to the amino acid side chain or to the spacer via an ester, a sulphonyl ester, a thioester, an amide or a sulphonamide.
- the lipophilic substituent includes an acyl group, a sulphonyl group, an N atom, an O atom or an S atom which forms part of the ester, sulphonyl ester, thioester, amide or sulphonamide.
- an acyl group in the lipophilic substituent forms part of an amide or ester with the amino acid side chain or the spacer.
- the lipophilic substituent may be or may include a hydrocarbon chain having 4 to 30 C atoms. Preferably it has at least 8 or 12 C atoms, and preferably it has 24 C atoms or fewer, or 20 C atoms or fewer.
- the hydrocarbon chain may be linear or branched and may be saturated or unsaturated. It will be understood that the hydrocarbon chain is preferably substituted with a moiety which forms part of the attachment to the amino acid side chain or the spacer, for example an acyl group, a sulphonyl group, an N atom, an O atom or an S atom.
- hydrocarbon chain is substituted with acyl, and accordingly the hydrocarbon chain may be part of an alkanoyl group, for example decanoyl (caproyl), dodecanoyl (lauroyl), tetradecanoyl (myristoyl),
- hexadecanoyl (palmitoyl), heptadecanoyl, octadecanoyl (stearoyl), eicosanoyl or docosanoyl.
- the or each Z 1 may be, or may comprise, a decanoyl (caproyl), dodecanoyl (lauroyl), tetradecanoyl (myristoyl), hexadecanoyl (palmitoyl), heptadecanoyl, octadecanoyl (stearoyl), eicosanoyl or docosanoyl group.
- the lipophilic substituent may have the formula shown below:
- A may be, for example, an acyl group, a sulphonyl group, NH, N-alkyl , an O atom or an S atom, preferably acyl.
- n is an integer from 3 to 29, preferably at least 7 or at least 1 1 , and preferably 23 or less, more preferably 19 or less.
- the hydrocarbon chain may be further substituted. For example, it may be further substituted with up to three substituents selected from NH 2 , OH and COOH. If the hydrocarbon chain is further substituted, preferably it is further substituted with only one substituent.
- the hydrocarbon chain may include a cycloalkane or heterocycloalkane, for example as shown below:
- the cycloalkane or heterocycloalkane is a six-membered ring. Most preferably, it is piperidine.
- the lipophilic substituent may be based on a cyclopentanophenanthrene skeleton, which may be partially or fully unsaturated, or saturated. The carbon atoms in the skeleton each may be substituted with Me or OH.
- the lipophilic substituent may be cholyl, deoxycholyl or lithocholyl.
- the lipophilic substituent may be conjugated to the amino acid side chain by a spacer.
- the spacer is attached to the lipophilic substituent and to the amino acid side chain.
- the spacer may be attached to the lipophilic substituent and to the amino acid side chain independently by an ester, a sulphonyl ester, a thioester, an amide or a sulphonamide. Accordingly, it may include two moieties independently selected from acyl, sulphonyl, an N atom, an O atom or an S atom.
- the spacer may have the formula: wherein B and D are each independently selected from acyl, sulphonyl, NH, N-alkyl, an O atom and an S atom, preferably from acyl and NH.
- n is an integer from 1 to 1 0, preferably from 1 to 5.
- the spacer may be further substituted with one or more substituents selected from C 0 - 6 alkyl, Co-6 alkyl amine, C 0 - 6 alkyl hydroxy and C 0 - 6 alkyl carboxy.
- the spacer may have two or more repeat units of the formula above.
- B, D and n are each selected independently for each repeat unit.
- Adjacent repeat units may be covalently attached to each other via their respective B and D moieties.
- the B and D moieties of the adjacent repeat units may together form an ester, a sulphonyl ester, a thioester, an amide or a sulphonamide.
- the free B and D units at each end of the spacer are attached to the amino acid side chain and the lipophilic substituent as described above.
- the spacer has five or fewer, four or fewer or three or fewer repeat units. Most preferably the spacer has two repeat units, or is a single unit.
- the spacer (or one or more of the repeat units of the spacer, if it has repeat units) may be, for example, a natural or unnatural amino acid. It will be understood that for amino acids having functionalised side chains, B and/or D may be a moiety within the side chain of the amino acid.
- the spacer may be any naturally occurring or unnatural amino acid.
- the spacer (or one or more of the repeat units of the spacer, if it has repeat units) may be Gly, Pro, Ala, Val, Leu, lie, Met, Cys, Phe, Tyr, Trp, His, Lys, Arg, Gin, Asn, a-Glu, ⁇ -Glu, Asp, Ser, Thr, Gaba, Aib, ⁇ -Ala, 5- aminopentanoyl, 6-aminohexanoyl, 7-aminoheptanoyl, 8-aminooctanoyl, 9-aminononanoyl or 10- aminodecanoyl.
- the spacer may be a single amino acid selected from ⁇ -Glu, Gaba, ⁇ -Ala and a-Glu.
- the lipophilic substituent is conjugated to an amino acid side chain of a Lys, Cys or Orn residue.
- the lipophilic substituent is conjugated to Lys.
- An example of a lipophilic substituent and spacer is shown in the formula below:
- a Lys residue in the compound of the present invention is covalently attached to ⁇ -Glu (the spacer) via an amide moiety.
- Hexadecanoyl (palmitoyl) is covalently attached to the ⁇ -Glu spacer via an amide moiety.
- one or more amino acid side chains in the compound of the invention may be conjugated to a polymeric moiety, for example, in order to increase solubility and/or half-life in vivo (e.g. in plasma) and/or bioavailability. Such modification is also known to reduce clearance (e.g. renal clearance) of therapeutic proteins and peptides.
- the polymeric moiety is preferably water-soluble (amphiphilic or hydrophilic), non-toxic, and pharmaceutically inert.
- Suitable polymeric moieties include polyethylene glycol (PEG), homo- or copolymers of PEG, a monomethyl-substituted polymer of PEG (mPEG), and polyoxyethylene glycerol (POG). See, for example, Int. J. Hematology 68:1 (1998) ; Bioconjugate Chem. 6:150 (1995) ; and Crit. Rev. Therap. Drug Carrier Sys. 9:249 (1992).
- polymeric moieties include poly-amino acids such as poly-lysine, poly-aspartic acid and poly-glutamic acid (see for example Gombotz, et al. (1995) , Bioconjugate Chem. , vol. 6 : 332- 351 ; Hudecz, et al. (1 992) , Bioconjugate Chem. , vol. 3, 49-57; Tsukada, et al. (1984) , J. Natl. Cancer Inst. , vol 73, : 721 -729; and Pratesi, et al. (1985), Br. J. Cancer, vol. 52: 841 -848).
- the polymeric moiety may be straight-chain or branched. It may have a molecular weight of 500- 40,000 Da, for example 500-10,000 Da, 1 000-5000 Da, 1 0,000-20,000 Da, or 20,000-40,000 Da.
- a compound of the invention may comprise two or more such moieties, in which case the total molecular weight of all such moieties will generally fall within the ranges provided above.
- the polymeric moiety may be coupled (by covalent linkage) to an amino, carboxyl or thiol group of an amino acid side chain.
- Preferred examples are the thiol group of Cys residues and the epsilon amino group of Lys residues.
- the carboxyl groups of Asp and Glu residues may also be used.
- a PEG moiety carrying a methoxy group can be coupled to a Cys thiol group by a maleimido linkage using reagents commercially available from Nektar Therapeutics AL. See also WO 2008/101017, and the references cited above, for details of suitable chemistry.
- one or more of the amino acid side chains in a compound in the present invention is/are conjugated to a polymeric moiety.
- the present invention provides a composition
- a composition comprising a compound of the invention as described herein, or a salt or derivative thereof, in admixture with a carrier.
- derivative thereof refers to a derivative of any one of the compounds. Derivatives include all chemical modifications, all conservative variants, all prodrugs and all metabolites of the compounds.
- the invention also provides the use of a compound of the present invention in the preparation of a medicament for the treatment of a condition as described below.
- the invention also provides a composition wherein the composition is a pharmaceutically acceptable composition, and the carrier is a pharmaceutically acceptable carrier.
- the compounds of the present invention may be manufactured either by standard synthetic methods, recombinant expression systems, or any other state of the art method.
- the glucagon analogues may be synthesized in a number of ways, including, for example, a method which comprises:
- methods (a), (b), and (c) will be supplemented by adding the lipophilic substituent at the appropriate location within the peptide backbone after synthesis.
- the derivatised amino acid may be incorporated directly during synthesis, or the lipophilic substituent may be added subsequently.
- the nucleic acid fragments of the invention will normally be inserted in suitable vectors to form cloning or expression vectors carrying the nucleic acid fragments of the invention; such novel vectors are also part of the invention.
- the vectors can, depending on purpose and type of application, be in the form of plasmids, phages, cosmids, mini-chromosomes, or virus, but also naked DNA which is only expressed transiently in certain cells is an important vector.
- Preferred cloning and expression vectors (plasmid vectors) of the invention are capable of autonomous replication, thereby enabling high copy-numbers for the purposes of high-level expression or high-level replication for subsequent cloning.
- an expression vector comprises the following features in the 5' ⁇ 3' direction and in operable linkage: a promoter for driving expression of the nucleic acid fragment of the invention, optionally a nucleic acid sequence encoding a leader peptide enabling secretion (to the extracellular phase or, where applicable, into the periplasma), the nucleic acid fragment encoding the peptide of the invention, and optionally a nucleic acid sequence encoding a terminator. They may comprise additional features such as selectable markers and origins of replication. When operating with expression vectors in producer strains or cell lines it may be preferred that the vector is capable of integrating into the host cell genome. The skilled person is very familiar with suitable vectors and is able to design one according to their specific requirements.
- the vectors of the invention are used to transform host cells to produce the compound of the invention.
- Such transformed cells which are also part of the invention, can be cultured cells or cell lines used for propagation of the nucleic acid fragments and vectors of the invention, or used for recombinant production of the peptides of the invention.
- Preferred transformed cells of the invention are micro-organisms such as bacteria [such as the species Escherichia (e.g. E. coli), Bacillus (e.g. Bacillus subtilis), Salmonella, or Mycobacterium (preferably non-pathogenic, e.g. M. bovis BCG), yeasts (e.g., Saccharomyces cerevisiae and Pichia pastoris), and protozoans.
- the transformed cells may be derived from a multicellular organism, i.e. it may be fungal cell, an insect cell, an algal cell, a plant cell, or an animal cell such as a mammalian cell.
- the transformed cell is capable of replicating the nucleic acid fragment of the invention.
- Cells expressing the nucleic fragment are useful embodiments of the invention; they can be used for small-scale or large-scale preparation of the peptides of the invention.
- recombinatn expression of X-Z may only be appropriate when each residue in X-Z is one of the 20 naturally occurring amino acids which can be incorporated into protein by conventional nucleic acid translation.
- modified translation systems are known which can introduce non-conventional amino acids and such systems may be used if desired.
- Binding of the relevant compounds to GLP-1 or glucagon (Glu) receptors may be used as an indication of agonist activity, but in general it is preferred to use a biological assay which measures intracellular signalling caused by binding of the compound to the relevant receptor. For example, activation of the glucagon receptor by a glucagon agonist will stimulate cellular cyclic AMP (cAMP) formation. Similarly, activation of the GLP-1 receptor by a GLP-1 agonist will stimulate cellular cAMP formation. Thus, production of cAMP in suitable cells expressing one of these two receptors can be used to monitor the relevant receptor activity. Use of a suitable pair of cell types, each expressing one receptor but not the other, can hence be used to determine agonist activity towards both types of receptor.
- cAMP cyclic AMP
- the GLP-1 receptor and/or the glucagon receptor may have the sequence of the receptors as described in the examples.
- the assays may employ the human glucagon receptor (Glucagon-R) having primary accession number G 1 :4503947 and/or the human glucagon-like peptide 1 receptor (GLP-1 R) having primary accession number G l:166795283. (in that where sequences of precursor proteins are referred to, it should of course be understood that assays may make use of the mature protein, lacking the signal sequence).
- EC 50 values may be used as a numerical measure of agonist potency at a given receptor.
- An EC 50 value is a measure of the concentration of a compound required to achieve half of that compound's maximal activity in a particular assay.
- a compound having EC 50 [GLP-1 ] lower than the EC 50 [GLP-1 ] of glucagon in a particular assay may be considered to have higher GLP-1 receptor agonist potency than glucagon.
- the compounds described in this specification are typically Glu-GLP-1 dual agonists, as determined by the observation that they are capable of stimulating cAMP formation at both the glucagon receptor and the GLP-1 receptor.
- the stimulation of each receptor can be measured in independent assays and afterwards compared to each other.
- Relative GLP-1 R selectivity [compound] (1 /EC 50 [GLP-1 R])x1 00 / (1 /EC 50 [Glucagon-R] + 1 /EC 50 [GLP-1 R])
- a compound's relative selectivity allows its effect on the GLP-1 or glucagon receptor to be compared directly to its effect on the other receptor. For example, the higher a compound's relative GLP-1 selectivity is, the more effective that compound is on the GLP-1 receptor as compared to the glucagon receptor.
- the compounds of the invention have a higher relative GLP-1 R selectivity than human glucagon in that for a particular level of glucagon-R agonist activity, the compound will display a higher level of GLP-1 R agonist activity (i.e. greater potency at the GLP-1 receptor) than glucagon.
- the absolute potency of a particular compound at the glucagon and GLP-1 receptors may be higher, lower or approximately equal to that of native human glucagon, as long as the appropriate relative GLP-1 R selectivity is achieved.
- the compounds of this invention may have a lower EC 50 [GLP-1 R] than human glucagon.
- the compounds may have a lower EC 50 [GLP-1 -R] than glucagon while maintaining an EC 50 [Glucagon-R] that is less than 10-fold higher than that of human glucagon, less than 5-fold higher than that of human glucagon, or less than 2-fold higher than that of human glucagon.
- the compounds of the invention may have an EC 50 [Glucagon-R] that is less than two-fold that of human glucagon.
- the compounds may have an EC 50 [Glucagon-R] that is less than two-fold that of human glucagon and have an EC 50 [GLP-1 R] that is less than half that of human glucagon, less than a fifth of that of human glucagon, or less than a tenth of that of human glucagon.
- the relative GLP-1 R selectivity of the compounds may be between 5% and 95%.
- the compounds may have a relative selectivity of 5-20%, 10-30%, 20-50%, 30-70%, or 50-80%; or of 30-50%, 40-60,%, 50-70% or 75-95%.
- the compounds of the invention may also have effect on other Class B GPCR receptors, such as, but not limited to, Calcitonin gene-related peptide 1 (CGRP1 ), corticotropin-releasing factor 1 & 2 (CRF1 & CRF2), gastric inhibitory polypeptide (G IP), glucagon-like peptide 1 & 2 (GLP-1 & GLP-2, glucagon (GCGR), secretin, gonadotropin releasing hormone (GnRH), parathyroid-hormone 1 & 2 (PTH1 & PTH2), vasoactive intestinal peptide (VPAC1 & VPAC2).
- CGRP1 Calcitonin gene-related peptide 1
- CRF1 & CRF2 corticotropin-releasing factor 1 & 2
- G IP gastric inhibitory polypeptide
- GLP-1 & GLP-2 glucagon-like peptide 1 & 2
- GCGR glucagon
- secretin gonadotropin releasing hormone
- the compounds of the invention may provide an attractive treatment option for, inter alia metabolic diseases, including, obesity, dyslipidemia and diabetes mellitus (diabetes).
- Metabolic syndrome is characterized by a group of metabolic risk factors in one person. They include abdominal obesity (excessive fat tissue around the abdominal internal organs), atherogenic dyslipidemia (blood fat disorders including high triglycerides, low HDL cholesterol and/or high LDL cholesterol, which foster plaque buildup in artery walls), elevated blood pressure (hypertension), insulin resistance and glucose intolerance, prothrombotic state (e.g. high fibrinogen or plasminogen activator inhibitor-1 in the blood), and proinflammatory state (e.g., elevated C-reactive protein in the blood).
- abdominal obesity excessive fat tissue around the abdominal internal organs
- atherogenic dyslipidemia blood fat disorders including high triglycerides, low HDL cholesterol and/or high LDL cholesterol, which foster plaque buildup in artery walls
- elevated blood pressure hypertension
- insulin resistance and glucose intolerance hypertension
- prothrombotic state e.g. high fibrinogen or plasminogen activator inhibitor-1 in the blood
- proinflammatory state e.g
- Diabetes comprises a group of metabolic diseases characterized by hyperglycemia resulting from defects in insulin secretion, insulin action, or both. Acute signs of diabetes include excessive urine production, resulting compensatory thirst and increased fluid intake, blurred vision, unexplained weight loss, lethargy, and changes in energy metabolism.
- the chronic hyperglycemia of diabetes is associated with long-term damage, dysfunction, and failure of various organs, notably the eyes, kidneys, nerves, heart and blood vessels. Diabetes is classified into type 1 diabetes, type 2 diabetes and gestational diabetes on the basis on pathogenetic characteristics.
- Type 1 diabetes accounts for 5-10% of all diabetes cases and is caused by auto-immune destruction of insulin-secreting pancreatic ⁇ -cells.
- Type 2 diabetes accounts for 90-95% of diabetes cases and is a result of a complex set of metabolic disorders. Type 2 diabetes is the consequence of endogenous insulin production becoming insufficient to maintain plasma glucose levels below the diagnostic thresholds.
- Gestational diabetes refers to any degree of glucose intolerance identified during pregnancy.
- Pre-diabetes includes impaired fasting glucose and impaired glucose tolerance and refers to those states that occur when blood glucose levels are elevated but below the levels that are established for the clinical diagnosis for diabetes.
- a large proportion of people with type 2 diabetes and pre-diabetes are at increased risk of morbidity and mortality due to the high prevalence of additional metabolic risk factors including abdominal obesity (excessive fat tissue around the abdominal internal organs), atherogenic dyslipidemia (blood fat disorders including high triglycerides, low HDL cholesterol and/or high LDL cholesterol, which foster plaque buildup in artery walls), elevated blood pressure (hypertension) a prothrombotic state (e.g. high fibrinogen or plasminogen activator inhibitor— 1 in the blood), and proinflammatory state (e.g., elevated C-reactive protein in the blood).
- abdominal obesity excessive fat tissue around the abdominal internal organs
- atherogenic dyslipidemia blood fat disorders including high triglycerides, low HDL cholesterol and/or high LDL cholesterol, which foster plaque buildup in artery walls
- elevated blood pressure hypertension
- a prothrombotic state e.g. high fibrinogen or plasminogen activator inhibitor— 1 in the blood
- proinflammatory state
- Dyslipidaemia is associated with increased risk of cardiovascular diasese.
- High Density Lipoprotein (HDL) is of clinical importance since an inverse correlation exists between plasma HDL
- LDL Low Density Lipoproteins
- the HDL/LDL ratio is a clinical risk indictor for atherosclerosis and coronary atherosclerosis in particular.
- the compounds of the invention act as GluGLP-1 dual agonists.
- the dual agonist combines the effect of glucagon on fat metabolism with the effects of GLP-1 on food intake. They might therefore act in a synergistic fashion to accelerate elimination of excessive fat deposition and induce sustainable weight loss.
- Certain of the compounds described may also have a beneficial effect on glucose control directly, independently of any effect on body weight.
- the synergistic effect of dual GluGLP-1 agonists may also result in reduction of cardiovascular risk factors such as high cholesterol and LDL, which may be entirely independent of their effect on body weight.
- the compounds of the present invention may therefore be used as pharmaceutical agents for preventing weight gain, promoting weight loss, reducing excess body weight or treating obesity (e.g. by control of appetite, feeding, food intake, calorie intake, and/or energy expenditure), including morbid obesity, as well as associated diseases and health conditions caused or characterised by excess body weight. These include but are not limited to obesity, morbid obesity, morbid obesity prior to surgery, obesity linked inflammation, obesity linked gallbladder disease and obesity induced sleep apnea.
- the compounds of the invention may also be used for treatment of metabolic syndrome, hypertension, type I I diabetes, atherogenic dyslipidemia, atherosclerois, arteriosclerosis, coronary heart disease, peripheral artery disease, stroke and microvascular disease. These are all conditions which can be associated with obesity.
- the effects of the compounds of the invention on these conditions may be mediated in whole or in part via an effect on body weight, or may be independent thereof. Further, via their direct effect on glucose control, the compounds of the present invention may be useful for treatment of any of the above conditions as well as others not necessarily associated with or caused by excess body weight, including type I diabetes and gestational diabetes.
- the compounds of the present invention may further be used as pharmaceutical agents for lowering circulating LDL levels, and/or increasing HDL/LDL ratio.
- a compound of the invention may be administered as part of a combination therapy with an agent for treatment of obesity, hypertension dyslipidemia or diabetes.
- the two active agents may be given together or separately, and as part of the same pharmaceutical formulation or as separate formulations.
- a compound or salt thereof can further be used in combination with an anti-obesity agent, including but not limited to a glucagon-like peptide receptor 1 agonist, peptide YY or analogue thereof, cannabinoid receptor 1 antagonist, lipase inhibitor, melanocortin receptor 4 agonist, or melanin concentrating hormone receptor 1 antagonist.
- a compound of the invention or salt thereof can be used in combination with an anti-hypertension agent, including but not limited to an angiotensin-converting enzyme inhibitor, angiotensin II receptor blocker, diuretics, beta-blocker, or calcium channel blocker.
- an anti-hypertension agent including but not limited to an angiotensin-converting enzyme inhibitor, angiotensin II receptor blocker, diuretics, beta-blocker, or calcium channel blocker.
- a compound of the invention or salt thereof can be used in combination with a dyslipidaemia agent, including but not limited to a statin, a fibrate, a niacin and/or a cholesterol absorbtion inhibitor.
- a dyslipidaemia agent including but not limited to a statin, a fibrate, a niacin and/or a cholesterol absorbtion inhibitor.
- a compound of the invention or salt thereof can be used in combination with an anti-diabetic agent, including but not limited to metformin, a sulfonylurea, a glinide, a DPP-IV inhibitor, a glitazone, a different GLP-1 agonist or an insulin.
- the compound or salt thereof is used in combination with insulin, DPP-IV inhibitor, sulfonylurea or metformin, particularly sulfonylurea or metformin, for achieving adequate glycemic control.
- the compound or salt thereof is used in combination with an insulin or an insulin analogue for achieving adequate glycemic control.
- insulin analogues include but are not limited to Lantus, Novorapid, Humalog, Novomix, and Actraphane HM.
- the compounds of the present invention, or salts thereof, may be formulated as pharmaceutical compositions prepared for storage or administration, which typically comprise a therapeutically effective amount of a compound of the invention, or a salt thereof, in a pharmaceutically acceptable carrier.
- compositions comprise those of overall solid form as well as those of overall pasteous or liquid form, which can be selected and optimised with respect to the specific route of administration and/or needs of the patient.
- Such forms are per se known to a person skilled in the art.
- the therapeutically effective amount of a compound of the present invention will depend on the route of administration, the type of mammal being treated, and the physical characteristics of the specific mammal under consideration. These factors and their relationship to determining this amount are well known to skilled practitioners in the medical arts. This amount and the method of administration can be tailored to achieve optimal efficacy, and may depend on such factors as weight, diet, concurrent medication and other factors, well known to those skilled in the medical arts.
- the dosage sizes and dosing regimen most appropriate for human use may be guided by the results obtained by the present invention, and may be confirmed in properly designed clinical trials.
- An effective dosage and treatment protocol may be determined by conventional means, starting with a low dose in laboratory animals and then increasing the dosage while monitoring the effects, and systematically varying the dosage regimen as well. Numerous factors may be taken into consideration by a clinician when determining an optimal dosage for a given subject. Such considerations are known to the skilled person.
- pharmaceutically acceptable carrier includes any of the standard pharmaceutical carriers.
- Pharmaceutically acceptable carriers for therapeutic use are well known in the pharmaceutical art, and are described, for example, in Remington's Pharmaceutical Sciences, Mack Publishing Co. (A. R. Gennaro edit. 1985).
- sterile saline and phosphate-buffered saline at slightly acidic or physiological pH may be used.
- pH buffering agents may be phosphate, citrate, acetate, tris/hydroxymethyl)aminomethane (TRIS), N-Tris(hydroxymethyl)methyl -3- aminopropanesulphonic acid (TAPS), ammonium bicarbonate, diethanolamine, histidine, which is a preferred buffer, arginine, lysine, or acetate or mixtures thereof.
- TIS tris/hydroxymethyl)aminomethane
- TAPS N-Tris(hydroxymethyl)methyl -3- aminopropanesulphonic acid
- ammonium bicarbonate diethanolamine
- histidine which is a preferred buffer
- arginine arginine
- lysine or acetate or mixtures thereof.
- the term further encompases any agents listed in the US Pharmacopeia for use in animals, including humans.
- salts include pharmaceutically acceptable salts such as acid addition salts and basic salts.
- acid addition salts include hydrochloride salts, citrate salts and acetate salts.
- basic salts include salts where the cation is selected from alkali metals, such as sodium and potassium, alkaline earth metals, such as calcium, and ammonium ions + N (R 3 ) 3 (R 4 ), where R 3 and R 4 independently designates optionally substituted Ci -6 -alkyl, optionally substituted C 2 . 6 -alkenyl, optionally substituted aryl, or optionally substituted heteroaryl.
- Treatment is an approach for obtaining beneficial or desired clinical results.
- beneficial or desired clinical results include, but are not limited to, alleviation of symptoms, diminishment of extent of disease, stabilized (i.e., not worsening) state of disease, delay or slowing of disease progression, amelioration or palliation of the disease state, and remission (whether partial or total), whether detectable or undetectable.
- Treatment can also mean prolonging survival as compared to expected survival if not receiving treatment.
- Treatment is an intervention performed with the intention of preventing the development or altering the pathology of a disorder. Accordingly, “treatment” refers to both therapeutic treatment and prophylactic or preventative measures.
- the pharmaceutical compositions can be in unit dosage form.
- the composition is divided into unit doses containing appropriate quantities of the active component.
- the unit dosage form can be a packaged preparation, the package containing discrete quantities of the preparations, for example, packeted tablets, capsules, and powders in vials or ampoules.
- the unit dosage form can also be a capsule, cachet, or tablet itself, or it can be the appropriate number of any of these packaged forms. It may be provided in single dose injectable form, for example in the form of a pen.
- packaged forms include a label or insert with instructions for use.
- compositions may be formulated for any suitable route and means of administration.
- Pharmaceutically acceptable carriers or diluents include those used in formulations suitable for oral, rectal, nasal, topical (including buccal and sublingual), vaginal or parenteral (including
- subcutaneous, intramuscular, intravenous, intradermal, and transdermal) administration may conveniently be presented in unit dosage form and may be prepared by any of the methods well known in the art of pharmacy.
- Subcutaneous or transdermal modes of administration may be particularly suitable for the compounds described herein.
- compositions of the invention may further be compounded in, or attached to, for example through covalent, hydrophobic and electrostatic interactions, a drug carrier, drug delivery system and advanced drug delivery system in order to further enhance stability of the compound, increase bioavailability, increase solubility, decrease adverse effects, achieve chronotherapy well known to those skilled in the art, and increase patient compliance or any combination thereof.
- carriers, drug delivery systems and advanced drug delivery systems include, but are not limited to, polymers, for example cellulose and derivatives, polysaccharides, for example dextran and derivatives, starch and derivatives, polyvinyl alcohol), acrylate and methacrylate polymers, polylactic and polyglycolic acid and block co-polymers thereof, polyethylene glycols, carrier proteins, for example albumin, gels, for example, thermogelling systems, for example block co-polymeric systems well known to those skilled in the art, micelles, liposomes, microspheres, nanoparticulates, liquid crystals and dispersions thereof, L2 phase and dispersions there of, well known to those skilled in the art of phase behaviour in lipid-water systems, polymeric micelles, multiple emulsions, self-emulsifying, self-microemulsifying, cyclodextrins and derivatives thereof, and dendrimers.
- polymers for example cellulose and derivatives, polysaccharides, for example dextran and derivatives
- SPPS Solid phase peptide synthesis
- ivDde 1 -(4,4-dimethyl-2,6-dioxocyclohexylidene)3-methyl-butyl
- DIPEA diisopropylethylamine
- HATU A/-[(dimethylamino)-1 ⁇ - ⁇ ,2,3-triazol[4,5-b]pyridine-1 -ylmethylene]-/V- methylmethanaminium hexafluorophosphate /V-oxide
- TIS triisopropylsilane
- the crude peptide was cleaved from the resin by treatment with 95/2.5/2.5 % (v/v) TFA/TIS/ water at r.t. for 2 h.
- a mixture of 95/5 % (v/v) TFA/EDT was used. Most of the TFA was removed at reduced pressure and the crude peptide was precipitated and washed with diethylether and allowed to dry to constant weight at ambient temperature.
- the peptide backbone was synthesized as described above for the general synthesis of glucagon analogues, with the exception that it was acylated on the side chain of a lysine residue with the peptide still attached to the resin and fully protected on the side chain groups, except the epsilon- amine on the lysine to be acylated.
- the lysine to be acylated was incorporated with the use of Fmoc-Lys(ivDde)-OH or Fmoc-Lys(Dde)-OH .
- the N-terminal of the peptide was protected with a Boc group using Boc 2 0 in NMP.
- the ivDde protecting group was selectively cleaved using 5 % hydrazine hydrate in NMP.
- the unprotected lysine side chain was then first coupled with a spacer amino acid like Fmoc-Glu-OtBu, which was deprotected with piperidine and acylated with a fatty acid using standard peptide coupling methodology as described above.
- the histidine at the N-terminal may be incorporated from the beginning as Boc-His(Boc)-OH. Cleavage from the resin and purification were performed as described above.
- the cDNA encoding either the human glucagon receptor (Glucagon-R) (primary accession number P47871 ) or the human glucagon-like peptide 1 receptor (GLP-1 R) (primary accession number P43220) were cloned from the cDNA clones BC1 04854 (MGC:132514/IMAGE:8143857) or BC1 12126 (MGC:138331 /IMAGE:8327594), respectively.
- the DNA encoding the Glucagon-R or the GLP-1 -R was amplified by PCR using primers encoding terminal restriction sites for subcloning.
- the 5'-end primers additionally encoded a near Kozak consensus sequence to ensure efficient translation.
- the fidelity of the DNA encoding the Glucagon-R and the GLP-1 -R was confirmed by DNA sequencing.
- the PCR products encoding the Glucagon-R or the GLP-1 -R were subcloned into a mammalian expression vector containing a neomycin (G418) resistance marker.
- the mammalian expression vectors encoding the Glucagon-R or the GLP-1 -R were transfected into HEK293 cells by a standard calcium phosphate transfection method. 48 hr after transfection cells were seeded for limited dilution cloning and selected with 1 mg/ml G418 in the culture medium.
- Glucagon-R and GLP-1 -R expressing cells were picked, propagated and tested in the Glucagon-R and GLP-1 -R efficacy assays as described below.
- One Glucagon-R expressing clone and one GLP-1 -R expressing clone were chosen for compound profiling.
- HEK293 cells expressing the human Glucagon-R, or human GLP-1 -R were seeded at 40,000 cells per well in 96-well microtiter plates coated with 0.01 % poly-L-lysine and grown for 1 day in culture in 100 ⁇ growth medium. On the day of analysis, growth medium was removed and the cells washed once with 200 ⁇ Tyrode buffer. Cells were incubated in 1 00 ⁇ Tyrode buffer containing increasing concentrations of test peptides, 100 ⁇ IBMX, and 6 mM glucose for up 15 min at 37° C. The reaction was stopped by addition of 25 ⁇ 0.5 M HCI and incubated on ice for 60 min. The cAMP content was estimated using the FlashPlate® cAMP kit from Perkin-Elmer according to
- H-H-Aib-QGTFTSDYSKYLD-K(Hexadecanoyl-isoGlu)-RRAKDFIEWLLSA-NH2 (Compound 1 )
- the peptide was synthesized on a CEM Liberty Peptide Synthesizer using TentaGel S Ram resin (1 .04 g; 0.25 mmol/g) and Fmoc chemistry as described above using Fmoc-Phe-Thr(ijj-Me,Me-Pro)- OH and.
- Fmoc-Lys(Hexadecanoyl-isoGlu(tBu))-OH (Corden Pharma) was coupled manually using 396 mg dissolved in DMF/DCM (2:1 , 8 ml) with HATU (190 mg). The solution was added to the resin and then DIEA (86 ⁇ ) was added. The resin was shaken gently for 4 hours and then washed with DMF (8x2 min).
- the peptide was cleaved from the resin as described above.
- the crude peptide was purified on a Gemini column (5x25 cm; 10 ⁇ ; C18) with a 35 ml/min flow of a mixture of buffer A (0.1 % TFA; aq.) and buffer B (0.1 % TFA; 90% MeCN ; aq.).
- the product was eluted with a linear gradient from 20% to 70% buffer B over 47 min, and fractions (9 ml) were collected with a fraction collector.
- Table 1 EC50 values for cAMP generation in HEK293 cells expressing GLP-1 receptor or Glucagon receptor
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Abstract
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Priority Applications (17)
Application Number | Priority Date | Filing Date | Title |
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BR112014015681A BR112014015681A2 (en) | 2011-12-23 | 2012-12-19 | glucagon analogs |
JP2014547973A JP2015502380A (en) | 2011-12-23 | 2012-12-19 | Glucagon analog |
IN4401CHN2014 IN2014CN04401A (en) | 2011-12-23 | 2012-12-19 | |
AU2012357739A AU2012357739A1 (en) | 2011-12-23 | 2012-12-19 | Glucagon analogues |
MX2014007120A MX2014007120A (en) | 2011-12-23 | 2012-12-19 | Glucagon analogues. |
CA2858949A CA2858949A1 (en) | 2011-12-23 | 2012-12-19 | Glucagon analogues |
CN201280063090.8A CN104144696A (en) | 2011-12-23 | 2012-12-19 | Glucagon analogues |
EA201490982A EA201490982A1 (en) | 2011-12-23 | 2012-12-19 | ANALOGUE GLUACAGONA |
KR1020147020623A KR20140114845A (en) | 2011-12-23 | 2012-12-19 | Glucagon analogues |
EP12816470.4A EP2793931A2 (en) | 2011-12-23 | 2012-12-19 | Glucagon analogues |
AP2014007797A AP2014007797A0 (en) | 2011-12-23 | 2012-12-19 | Glucagon analogues |
SG11201403377QA SG11201403377QA (en) | 2011-12-23 | 2012-12-19 | Glucagon analogues |
TNP2014000224A TN2014000224A1 (en) | 2011-12-23 | 2014-05-21 | Glucagon analogues |
IL232800A IL232800A0 (en) | 2011-12-23 | 2014-05-26 | Glucagon analogues |
PH12014501336A PH12014501336A1 (en) | 2011-12-23 | 2014-06-11 | Glucagon analogues |
MA37205A MA35864B1 (en) | 2011-12-23 | 2014-07-11 | Analogues of glucagon |
HK15101109.9A HK1200369A1 (en) | 2011-12-23 | 2015-02-02 | Glucagon analogues |
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US201161579888P | 2011-12-23 | 2011-12-23 | |
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EP (1) | EP2793931A2 (en) |
JP (1) | JP2015502380A (en) |
KR (1) | KR20140114845A (en) |
CN (1) | CN104144696A (en) |
AP (2) | AP2014007797A0 (en) |
AU (1) | AU2012357739A1 (en) |
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CA (1) | CA2858949A1 (en) |
EA (1) | EA201490982A1 (en) |
HK (1) | HK1200369A1 (en) |
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IN (1) | IN2014CN04401A (en) |
MA (1) | MA35864B1 (en) |
MX (1) | MX2014007120A (en) |
PE (1) | PE20142113A1 (en) |
PH (1) | PH12014501336A1 (en) |
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US20130316941A1 (en) | 2013-11-28 |
SG11201403377QA (en) | 2014-07-30 |
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EP2793931A2 (en) | 2014-10-29 |
HK1200369A1 (en) | 2015-10-09 |
AP2014007797A0 (en) | 2014-07-31 |
PE20142113A1 (en) | 2014-12-03 |
EA201490982A1 (en) | 2015-01-30 |
IL232800A0 (en) | 2014-07-31 |
AP2014007774A0 (en) | 2014-07-31 |
IN2014CN04401A (en) | 2015-09-04 |
MA35864B1 (en) | 2014-12-01 |
BR112014015681A2 (en) | 2019-09-24 |
AU2012357739A1 (en) | 2014-07-03 |
WO2013092703A3 (en) | 2013-11-14 |
CN104144696A (en) | 2014-11-12 |
US20160347813A1 (en) | 2016-12-01 |
TN2014000224A1 (en) | 2015-09-30 |
CA2858949A1 (en) | 2013-06-27 |
JP2015502380A (en) | 2015-01-22 |
MX2014007120A (en) | 2015-03-05 |
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