EP3394090A1 - Bioconjugués non agglomérants d'amyline et de composés mimétiques de l'amyline, compositions contenant lesdits conjugués, leur préparation et leur utilisation - Google Patents

Bioconjugués non agglomérants d'amyline et de composés mimétiques de l'amyline, compositions contenant lesdits conjugués, leur préparation et leur utilisation

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Publication number
EP3394090A1
EP3394090A1 EP16874176.7A EP16874176A EP3394090A1 EP 3394090 A1 EP3394090 A1 EP 3394090A1 EP 16874176 A EP16874176 A EP 16874176A EP 3394090 A1 EP3394090 A1 EP 3394090A1
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EP
European Patent Office
Prior art keywords
amylin
insulin
agglomerating
bioconjugate
composition
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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EP16874176.7A
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German (de)
English (en)
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EP3394090A4 (fr
Inventor
Luis Mauricio Trambaioli DA ROCHA E LIMA
Luiz Henrique Guerreiro ROSADO
Mariana Fernandes De Avila Netto GUTERRES
Bruno Melo Vieira Gonçalves FERREIRA
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Universidade Federal do Rio de Janeiro UFRJ
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Universidade Federal do Rio de Janeiro UFRJ
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Application filed by Universidade Federal do Rio de Janeiro UFRJ filed Critical Universidade Federal do Rio de Janeiro UFRJ
Priority claimed from PCT/BR2016/050330 external-priority patent/WO2017100896A1/fr
Publication of EP3394090A1 publication Critical patent/EP3394090A1/fr
Publication of EP3394090A4 publication Critical patent/EP3394090A4/fr
Withdrawn legal-status Critical Current

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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

Definitions

  • Amylin also known as Islet Amyloid Polypeptide, identified with
  • CAS RN: 106602-62-4 is a 37-amino acid polypeptide hormone produced by the beta-cells of the pancreatic Langerhans islets. Under physiological conditions, amylin and insulin are produced and stored in the same secretory granules at relatively low pH environment. Both hormones are co-secreted in a proportion insulin: amylin of 15: 1 in response to feeding, and amylin plays important physiological roles in glucose homeostasis that are independent of the insulin pathway.
  • Type 1 diabetes patients have practically no natural amylin production, while patients with long-standing type 2 diabetes have lower levels than healthy individuals. Since amylin response to meal intake is absent or severely impaired in diabetic patients, some combinations of amylinomimetics and insulin or other anti-diabetic drugs are candidates to restore patient' s physiology, which is the main goal of diabetes treatment. Moreover, the glucose control in diabetic patients with the current insulin-based medications is usually suboptimal and invariably induces important side effects (e.g., weight gain and high risk of hypoglycemia).
  • Amylin replacement treatment in this context may make it possible for induction of satiety, slowed gastric empting or fewer postprandial glycemia peaks, leading to weight loss and improved control of glucose levels in the long run.
  • the use of structurally unmodified amylin as a pharmaceutical ingredient is not possible due to its intrinsic physicochemical properties (i.e., poor solubility, tendency to form amyloid fibers and low plasma stability). Its limited solubility in aqueous solution led to the development of a more soluble amylin-mimetic compound, pramlintide (Symlin®), in which amino acids 25, 27, and 28 were replaced by prolines.
  • pramlintide Although the solubility of pramlintide is greater than that of human amylin, pramlintide does not have good stability in neutral pH, so the product Symlin® is provided as an acid solution. This product has to be administered as subcutaneous injections right before the meals, aiming to increase postprandial levels of amylin. Because of its short plasma half-life, from 10 to 15 min, such injections of pramlintide increase the concentration of amylin in the blood stream as a series of peaks, and therefore it did not recover patient's physiology. In the scientific literature, pramlintide has been associated with increased risk of severe insulin-induced hypoglycemia, and other adverse effects such as nausea, vomiting, anorexia and fatigue.
  • a non-agglomerating bioconjugate of human amylin or amylin analogue wherein said bioconjugate contains at least one acyl unit.
  • the one acyl unit is covalently bonded to the Lysine 1 residue of SEQ ID NO: 1.
  • non-agglomerating bioconjugate of human amylin is represented by formula I
  • Rl represents an acyl moiety selected from the group consisting of acetyl, biotin, ubiquitin, glycans, fatty acid chains and natural or synthetic polymers, polyethylene glycol (PEG), and functional spacers with various average molar masses,
  • R2 represents SEQ ID NO: 1
  • X represents NH, CO, or O
  • m represents the number of units of the acyl groups (Rl) conjugated to SEQ ID NO: 1 (R2) obtained from the acylation of SEQ ID NO: 1, including human amylin analogues bearing an amino acid substitution in one or more of positions 3, 4, 5 or 6 (SEQ ID NO: 2);
  • the acyl group is produced with at least one acylating agent is selected from the group consisting of PEG an acetyl group, palmitoyl, and myristoyl.
  • PEG is from 1 kDa to 40 kDa.
  • the disclosure provides a composition comprising a non-agglomerating acylated bioconjugate of human amylin or amylin analogue.
  • the composition further comprises insulin, an insulin analogue, and/or a GLP-1 receptor agonist analogue; and a pharmaceutically acceptable carrier.
  • the insulin or insulin analogue is selected from the group consisting of NPH, regular insulin, Glargine, Detemir, Degludec, Aspart, Lispro, and Glulisine.
  • the GLP-1 receptor agonist analogue is selected from the group consisting of semaglutide, exenatide, lixisenatide, liraglutide, albiglutide, and dulaglutide.
  • the composition further comprises an anti-inflammatory.
  • the composition comprising a non- agglomerating acylated bioconjugate of human amylin or amylin analogue is used in the treatment of pancreatitis, hypercalcemia, pain, osteoporosis, chronic inflammatory diseases, coeliac disease, psoriasis, diseases or conditions caused or favored by amyloid deposition or accumulation that leads to dysfunction or failure of systemic organs, and disorders and vascular diseases resulting from increase in blood pressure.
  • the diseases or problems caused or favored by amyloid deposition or accumulation that leads to dysfunction or failure of systemic organs are selected from the group consisting of hyperglycemia, diabetes, low tolerance to glucose or deficient glucose metabolism, obesity, metabolic syndrome, central nervous system-associated or peripherally-associated feeding disorders and Alzheimer's disease.
  • the problems and vascular diseases resulting from increase in blood pressure are selected from the group consisting of atherosclerosis, myocardial infarction, stroke, coronary heart disease, hypertension, and cardiac diseases.
  • the present disclosure provides methodology for preparing a composition comprising a non-agglomerating acylated bioconjugate of human amylin or amylin analogue, comprising mixing the non-agglomerating bioconjugate of human amylin, insulin, and a pharmaceutically acceptable carrier.
  • a medicament comprising a therapeutically effective amount of the non-agglomerating bioconjugate of human amylin, wherein one acyl unit is covalently bonded to the Lysine 1 residue of SEQ ID NO: 1.
  • a disease or condition caused by a lack of amylin or amyloid deposition or accumulation comprising administering to a patient in need thereof the composition insulin, an insulin analogue, and/or a GLP-1 receptor agonist analogue; and a pharmaceutically acceptable carrier.
  • the disease is diabetes and/or obesity.
  • FIGURE 1 is a chromatogram for monopegylated amylin obtained by the reaction of human amylin and mPEG 5000 Da (hAmyPEG5k).
  • FIGURE 2 is a mass spectrometry showing characterization of hAmyPEG5k.
  • FIGURE 3 is a chromatogram for monopegylated amylin obtained by the reaction of human amylin and mPEG 20000 Da (hAmyPEG20k).
  • FIGURE 4 is a mass spectrometry showing characterization of hAmyPEG20k.
  • FIGURE 5 and FIGURE 6 are assays for RAMP2 and RAMP3, respectively, coreceptor binding interaction for free and purified monopegylated human amylin.
  • FIGURE 7 A-C shows the biological activity of hAmyPEG5k and hAmyPEG20k in vitro
  • FIGURE 8 is an assay for amyloid aggregates.
  • FIGURE 9A-C are plasma stability comparison between free amylin
  • FIGURE 10A is an isoelectric focusing of acetylated derivative of human amylin (AcO-hAmy).
  • FIGURE 10B is an isoelectric focusing of hAmyPEG5k.
  • FIGURE 11 shows the short-term effect of acidic or basic pH on the aggregation rate of human amylin (A) or hAmy-PEG5k (B)
  • FIGURE 12A shows the short-term effect of pH on the aggregation rate of human amylin.
  • FIGURE 12B shows the short-term effect of pH on the aggregation rate of AcO-hAmy.
  • FIGURE 13 shows the long-term effect of pH on the aggregation rate of hAmyPEG5k.
  • FIGURE 14A-D shows the short-term stability of human amylin or its monoPEGylated derivative with recombinant insulins: kinetics of aggregation for human amylin and hAmyPEG5k (A), the selected insulin analogues (B), combinations of insulin analogues with human amylin (C) and hAmyPEG5k (D).
  • FIGURE 15 A-B shows the short-term stability of the combination of hAmyPEG5k and the GLP-1 analog liraglutide measured by Tht and DLS.
  • FIGURE 16 A-B shows the short-term stability of the combination of hAmyPEG20k and the GLP-1 analog liraglutide measured by Tht and DLS.
  • FIGURE 17A-B show the long-term stability of the combination of hAmyPEG5k and insulin analogues measured by DLS for 6 months.
  • FIGURE 18A-B shows the long-term stability of the combination of hAmyPEG5k and insulin analogues measured by Tht for 6 months.
  • FIGURE 19A-C shows the long-term stability of the combination of hAmyPEG5k and insulin Glargine measured by HPLC for 6 months.
  • FIGURE 20A-C shows the long-term stability of the combination of hAmyPEG5k and insulin Detemir measured by HPLC for 6 months.
  • FIGURE 21 A-C shows that hAmyPEG20k reduces food intake and body weight gain following subcutaneous administration to healthy rats
  • FIGURE 22 A-B shows that hAmyPEG20k and Liraglutide have synergistic effects upon food intake following subcutaneous co-administration to healthy rats
  • FIGURE 23 A-B shows that hAmyPEG20k reduces gastric emptying rate following subcutaneous administration to healthy rats
  • FIGURE 24 A-B shows that hAmyPEG20k reduces post prandial glucose following subcutaneous administration to healthy rats
  • amylin as a pharmaceutical ingredient is not possible due to its inherent physiochemical properties, such as poor solubility, low plasma stability, and tendency to form amyloid fibers.
  • the present inventors developed methodology, compositions, and the like that allow amylin to act as a pharmaceutical ingredient, as well as conjugate amylin with other compounds, such as insulin.
  • the present inventors made the surprising discovery that conjugating an acylating agent to human amylin improved amylin peptide stability in solutions with neutral pH, and therefore allows amylin bioconjugates to mix with other compounds, such as insulins and GLP-1 analogs.
  • the acylating agent may be chosen in order to modulate the pharmacokinetic features of the amylin peptide.
  • the inventors determined that modulating the isoelectric point (pi) of human amylin consequently changes the pH zone in which the amylin peptide aggregates, thereby permitting amylin to be combined with other compounds, such as insulin and GLP-1 analogs.
  • other compounds such as insulin and GLP-1 analogs.
  • mixing amylin or amylin analogues with other compounds in aqueous solutions was impossible due to pi incompatibility.
  • most insulin-based products and GLP-1 analogs are formulated near physiological pH, around pH 7.2, while human amylin and its analogues are completely unstable at such pH range.
  • insulin glargine which has pH 4.0, could not successfully combine with amylin analogues (i.e. Pramlintide) due to inappropriate molecular interactions. See, for example, U.S. Application Publication No. 2009-0018053.
  • the present disclosure contemplates conjugating human amylin or amylin analogues and an acylating agent, a method of making and the use of obtained bioconjugates towards the restoration of the physiologic levels of amylin or the inhibition of extracellular formation of amyloid aggregates, without inducing the toxicity related to the formation of amylin oligomers and clusters.
  • the present disclosure provides conjugation of human amylin or a defined range of amylin analogues with an acylating agent.
  • the present disclosure provides combinations of bioconjugates of amylin with insulin, GLP-1 analogs or other compounds such as but not limited to antidiabetic compounds and/or antiinflammatory compounds, methods of preparing the same, and uses thereof.
  • the anti-inflammatory compounds are chosen from steroids and nonsteroidal anti-inflammatories (NSAIDS).
  • the steroids are chosen from prednisone, dexamethasone, and hydrocortisone.
  • the steroids are corticosteroids chosen from prednisolone, prednisone, medrol, beclomethsone, budesonide, flunisolide, fluticasone and triamcinolone.
  • the anti-inflammatory compounds are corticosteroids chosen from dexamethasone, mometasone, and triamcinolone.
  • the NSAIDS are chosen from celecoxib, diclofenac, diflunisal, etodolac, fenoprofen, flurbirofen, ibuprofen, indomethacin, ketroprofen, ketorolac, mefenamic acid, meloxicam, nabumetone, naproxen, oxaprozin, piroxicam, sulindac, and tolmetin.
  • amylin refers to the Islet Amyloid Polypeptide, identified with CAS RN: 106602-62-4.
  • Amylin is a 37-amino acid polypeptide hormone produced by the beta-cells of the pancreatic Langerhans islets. Unless stated otherwise, amylin means human amylin, including natural or synthetic amylin.
  • Amylin encompasses polypeptides of SEQ ID NO: 1 or SEQ ID NO: 2, produced by natural, synthetic or bio-semi- synthetic means.
  • Amylin-mimetic compounds or amylinomimetics refer to drugs that act or mimic the function of naturally occurring amylin.
  • Amylin and amylin- mimetics are used interchangeably with human amylin, produced naturally, synthetically, or bio-semi-synthetically.
  • Amylin-mimetic encompasses active derivatives of said amylin-mimetic compounds such as salts, isomers, hydrates, solvates, prodrugs, metabolites, polymorphs, and isosteres.
  • amylin-mimetic compounds encompasses polypeptides of SEQ ID NO: 1 or SEQ ID NO: 2, produced by natural, synthetic, or bio-semi- synthetic means.
  • Pramlintide is a commercially available amylin-mimetic compound, having the sequence set forth in SEQ ID NO: 3.
  • Acylation refers to the process of quenching a positive charge of amine groups by the insertion of any acyl agent.
  • An acylating agent or acyl agent includes organic uncharged radicals, such as acetyl, biotin, ubiquitin, glycans, fatty acid chains, and natural or synthetic polymers.
  • Polyethylene glycol (PEG) is an exemplary acyl agent.
  • Non-aglommerating as used herein means that the instant amylin and amylin-mimetic compounds do not agglomerate, polymerize, or otherwise cluster.
  • a non-aglommerating amylin refers to an instant amylin having at least one acyl unit, covalently bound.
  • Bioconjugation is a chemical strategy to form a stable covalent link between two molecules, at least one of which is a biomolecule.
  • a bioconjugate is the resultant product formed from the two molecules.
  • several terms refer to formation of a bioconjugate, including mixing, binding, combining, coupling, linking, conjugating, and the like. These terms are used interchangeably and each means bioconjugation.
  • Analog or Analogue refers to compounds that have similar physical, chemical, biochemical, and/or pharmacological properties.
  • the analog may differ in one or more atoms, functional groups, or substructures, which are replaced with other atoms, groups, or substructures.
  • insulin has several analogs; for instance NPH, Glargine, Detemir, Aspart, Lispro, Glulisine or Degludec.
  • Insulin encompasses any type of insulin, including but not limited to natural, synthetic, bio- semi- synthetic or, recombinant insulins.
  • Non limiting examples of insulins include regular insulin, NPH, Glargine, Detemir, Aspart, Lispro, Glulisine or Degludec.
  • a disease or condition caused by lack or disrupted amylin secretion or by amyloid deposition or accumulation that leads to dysfunction or failure of systemic organs includes but is not limited to hyperglycemia, diabetes, low tolerance to glucose or deficient glucose metabolism, obesity, metabolic syndrome, central nervous system-associated or peripherally- associated feeding disorders, and Alzheimer' s disease.
  • amylin or an amylin-mimetic to act as a pharmaceutical ingredient, as well as combine or mix amylin with other compounds, such as an acylating agent and/or insulin and or GLP-1 analogs.
  • the present inventors made the surprising discovery that conjugating an acylating agent to human amylin improved amylin peptide stability in solutions with neutral pH, and therefore allows amylin bioconjugates to mix with other compounds, such as insulin and GLP-1 analogs. At the same time, they realized that the acylating agent may be chosen in order to modulate the pharmacokinetic features of the amylin peptide.
  • the present inventors determined that coupling an acylating agent with human amylin in the said alpha amine from lys-1, the pi shifts upwards, to a value close to 9.2.
  • the pi of acylated human amylin could range from about 8.9 to about 9.2, and could have a value of about 9.0, 9.1, 9.2, 9.3, 9.4, 9.5, 9.6, 9.7, 9.8, and 9.9.
  • the present disclosure contemplates conjugation of human amylin or amylin analogues and an acylating agent, methodology for making such amylin bioconjugates, and the use of said obtained bioconjugates.
  • an illustrative amylin bioconjugate finds use in the restoration of the physiologic levels of amylin or the inhibition of extracellular formation of amyloid aggregates, without inducing the toxicity related to the formation of amylin oligomers and clusters.
  • B. Non-agglomerating Amylin Conjugating Amylin with an Acylating Agent
  • the present disclosure contemplates conjugating human amylin or a defined range of amylin analogues with an acylating agent, thereby producing a non-agglomerating amylin.
  • the present disclosure provides novel, non- agglomerating bioconjugates of human amylin, with sequence KCNT ATC ATQRLANFL VHS SNNFG AILS STN VGSNT Y (SEQ ID NO: 1), or amylin-mimetic compounds, with sequence
  • KCX AAI X AA2 X AA3 X AA4 CATQRLANFLVHSSNNFGAILSSTNVGSNTY (SEQ ID NO: 2), and an acylating agent.
  • Pramlintide is another amylin-mimetic compound, commercially available, having the sequence
  • Said bioconjugates may contain, for instance, at least one polyethylene glycol unit (therefore monoconjugated or poly conjugated compounds may be obtained), covalently bound to the nitrogen atom(s) present in the alpha or epsilon amine moieties (lateral chain) of the lysine 1 residue of the amylin polypeptide chain.
  • a person skilled in the art could also replace amino acids XAAI, XAA2, XAA3 and/or XAA4 with other uncharged or positively charged amino acids and achieve acylated amylin analogues with higher p/than those bearing Lysl acylation alone.
  • the present disclosure provides methodology for stabilizing amylin- mimetic compounds comprising binding an acylating agent at the alpha and/or epsilon amine moieties (lateral chain) of the lysine 1 residue of the amylin polypeptide chain.
  • the non-agglomerating bioconjugates of amylin- mimetic compounds are represented by formula I:
  • Rl represents an acylating agent
  • R2 represents amylin (SEQ ID NO: 1) or amylin-mimetic (SEQ ID NO: 2) compounds,
  • X represents NH, CO or O
  • m represents the number of units of the acylating agent (Rl) conjugated to amylin-mimetic compounds (R2) obtained from the conjugation of an acylating agent with amylin-mimetic compounds through an amide or ester bond by reaction of the primary amine or the hydroxyl functional moieties.
  • Amylin-mimetics include analogues wherein amino acids in position 3, 4, 5 or 6 have been substituted by positively charged or uncharged amino acids;
  • Rl represents an acylating agent moiety and functional spacers with various average molar masses
  • R2 represents amylin (SEQ ID NO: 1) or amylin-mimetic (SEQ ID NO: 2) compounds,
  • X represents NH, CO or O
  • m represents the number of units of the acylating agent (Rl) conjugated to amylin-mimetic compounds (R2) obtained from the conjugation of the acylating agent with amylin-mimetic compounds.
  • the instant bioconjugate amylin- mimetic compounds encompass active derivatives of said amylin-mimetic compounds such as salts, isomers, hydrates, solvates, prodrugs, metabolites, polymorphs, and isosteres.
  • amy lin- mimetic compounds encompasses polypeptides of SEQ ID NO: 1 or SEQ ID NO: 2, either natural, synthetic, or bio-semi- synthetic.
  • alkyl refers to a straight or branched chain aliphatic hydrocarbon chain, having from 1 to 35 carbon atoms.
  • alkyl include, but are not limited to methyl, ethyl, n- propyl, isopropyl, n-butyl, n-pentyl, t-butyl and the like.
  • Alkyl groups may further be substituted with one or more suitable substituents.
  • alkenyl refers to a straight or branched chain aliphatic hydrocarbon group containing at least one carbon-carbon double bond, having from 2 to 35 carbon atoms.
  • alkenyl include, but are not limited to ethenyl, 1-propenyl, 2-propenyl, iso-propenyl, 1-butenyl, 2-butenyl, and the like.
  • Alkenyl groups may further be substituted with one or more suitable substituents.
  • alkynyl refers to a straight or branched chain aliphatic hydrocarbon group containing at least one carbon-carbon triple bond, having from 2 to 35 carbon atoms.
  • alkynyl include, but are not limited to ethynyl, propynyl, and butynyl.
  • Alkynyl groups may further be substituted with one or more suitable substituents.
  • cycloalkyl refers to cyclic alkyl groups constituting of 3 to 20 carbon atoms having a single cyclic ring or multiple condensed rings, for example, fused or spiro systems, unless otherwise constrained by the definition.
  • Such cycloalkyl groups include, by way of example, single ring structures, for example, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cyclooctyl, and the like, or multiple ring structures, for example, adamantyl, and bicyclo[2.2.1]heptane, or cyclic alkyl groups to which is fused an aryl group, heteroaryl group, heterocyclyl group or another cycloalkyl group, for example, indane and the like. Cycloalkyl groups may further be substituted with one or more suitable substituents.
  • cycloalkenyl refers to a cycloalkyl group as defined above which may optionally contain one or more double bonds.
  • cycloalkynyl refers to a cycloalkyl group as defined above which may optionally contain one or more triple bonds.
  • heterocyclyl refers to a non- aromatic monocyclic or polycyclic cycloalkyl group, fully or partially unsaturated, constituting of 5 to 15 carbon atoms, with one or more heteroatom(s) independently selected from N, O, S or P.
  • the nitrogen, sulphur and phosphorus heteroatoms may optionally be oxidized.
  • the nitrogen atoms may optionally be quaternerized.
  • the heterocyclyl group may be further substituted at any available position with one or more suitable substituents.
  • heterocyclyl groups include but are not limited to, morpholinyl, oxazolidinyl, tetrahydrofuranyl, dihydrofuranyl, dihydropyridinyl, dihydroisooxazolyl, dihydrobenzofuryl, azabicyclohexyl, dihydroindonyl, piperidinyl or piperazinyl.
  • aryl refers to a mono- or poly-carbocyclic aromatic group constituting of 5 to 15 carbon atoms, for example phenyl or naphthyl ring and the like optionally substituted with one or more suitable substituents.
  • the aryl group may optionally be fused with cycloalkyl group, heteroaryl group, heterocyclyl group or another aryl group. The fused group may be further substituted with one or more suitable substituents.
  • heteroaryl refers to an aromatic monocyclic or polycyclic ring structure constituting of 5 to 15 carbon atoms, containing one or more heteroatoms independently selected from N, O, S or P.
  • the nitrogen, sulphur and phosphorus heteroatoms may optionally be oxidized.
  • the nitrogen atoms may optionally be quaternerized.
  • Heteroaryl also includes, but is not limited to, bicyclic or tricyclic rings, wherein the heteroaryl ring is fused to one or two rings independently selected from an aryl ring, a cycloalkyl ring, a cycloalkenyl ring, a heterocyclyl ring and another monocyclic heteroaryl ring.
  • heteroaryl groups include, but are not limited to, oxazolyl, imidazolyl, pyrrolyl, 1,2,3-triazolyl, 1 ,2,4-triazolyl, tetrazolyl, thiazolyl, oxadiazolyl, benzoimidazolyl, thiadiazolyl, pyridinyl, pyridazinyl, pyrimidinyl, thienyl, isoxazolyl, triazinyl, furanyl, benzofuranyl, indolyl, benzothiazolyl, benzoxazolyl, imidazo[l,2-a]pyrimidine, imidazo[l,2-a]pyrazine, tetrahydroquinoline and the like.
  • the heteroaryl group may be further substituted at any available position with one or more suitable substituents.
  • PEG refers to a polyethylene glycol and as used herein is meant any water soluble poly (ethylene oxide).
  • the term PEG includes the structure— (CH2CH20) n — where n is an integer ranging from 2 to 1000 or from 2 to 500 or from 2 to 250 or from 2 to 125 or from 2 to 50 or from 2 to 25 or from 2 to 12.
  • a commonly used PEG is end-capped PEG, wherein one end of the PEG termini is end-capped with a relatively inactive group such as alkoxy, while the other end is a hydroxy 1 group that may be further modified by linker moieties.
  • An often used capping group is methoxy and the corresponding end- capped PEG is often denoted mPEG.
  • mPEG is CH 3 0(CH2CH 2 0)n— , where n is an integer from 2 to about 1000 sufficient to give the average molecular weight indicated for the whole PEG moiety, e.g., for mPEG Mw 2,000, n is approximately 44+10.
  • PEG forms are branched, linear, forked, dumbbell PEGs, and the like and the PEG groups are, in some embodiments, polydisperse, possessing a low polydispersity index of less than about 1.05.
  • the PEG moieties for a given molecular weight typically consist of a range of ethyleneglycol (or ethyleneoxide) monomers.
  • a PEG moiety of molecular weight 2000 will typically consist of 44+10 monomers, the average being around 44 monomers.
  • the average molecular weight (and number of monomers) will typically be subject to some batch- to-batch variation.
  • PEG forms are monodisperse that can be branched, linear, forked, or dumbbell shaped as well. Being monodisperse means that the length (or molecular weight) of the PEG polymer is specifically defined and is not a mixture of various lengths (or molecular weights).
  • alkoxy covers "alkyl-O— " wherein alkyl is as defined above. Representative examples are methoxy, ethoxy, propoxy (e.g., 1-propoxy and 2-propoxy), butoxy (e.g., 1-butoxy, 2-butoxy and 2-methyl-2-propoxy), pentoxy (1- pentoxy and 2-pentoxy), hexoxy (1-hexoxy and 3-hexoxy), and the like.
  • Y is O or S
  • R 1 , R 2 , and PEG are defined herein.
  • Y is O. In some embodiments, Y is S.
  • the amylin-mimetic compound are chosen from those having SEQ ID 1, SEQ ID 2, or SEQ ID 3, in which either the alpha or the epsilon amino acid of lysine- 1 (but not both) has a hydrogen atom replaced with an acyl moiety Q.
  • the amylin-mimetic compound are chosen from those having SEQ ID 1, SEQ ID 2, or SEQ ID 3, in which the both the alpha and the epsilon amino acid of lysine- 1 have a hydrogen atom replaced with an acyl moiety Q.
  • R a and R b are joined together to form a C 3 _ 7 cycloalkyl, C 3 _ 7 cycloalkenyl, C 6 -8 cycloalkynyl, heterocyclyl, aryl, heteroaryl; or
  • R b and R c are joined together to form a C 3 _ 7 cycloalkyl, C 3 _ 7 cycloalkenyl, C 6 -8 cycloalkynyl, heterocyclyl, aryl, heteroaryl; or
  • R c and R d are joined together to form a C 3 _ 7 cycloalkyl, C 3 _ 7 cycloalkenyl, C 6 -8 cycloalkynyl, heterocyclyl, aryl, heteroaryl.
  • R 1 represents Cio- 3 o alkyl, Cio- 3 o alkenyl, Qo-
  • R 1 represents C 12 - 18 alkyl, C 12 _ 18 alkenyl, C 12 _ is alkynyl, C 6 -io cycloalkyl, C 6 -io cycloalkenyl, Cio-u cycloalkynyl, heterocyclyl, aryl, heteroaryl; each of which may be optionally substituted as noted above.
  • R 1 may be optionally substituted at any available position by from one, two, three four, five, or six substituents independently selected from those noted above.
  • Q is chosen from acyl moieties in which R 1 represents C e alkyl and is optionally substituted as noted above.
  • R 1 represents C e alkyl and is optionally substituted as noted above.
  • Q is acetyl and is optionally substituted as noted above.
  • Q is chosen from acyl moieties in which R 1 represents C -35 alkyl, C40-30 alkyl, and Cn-is alkyl and is optionally substituted as noted above.
  • Q is chosen from acyl moieties of lauric acid (CH 3 (CH 2 ) 10 CO-), myristic acid (CH 3 (CH 2 ) 12 CO-), palmitic acid (CH 3 (CH 2 ) 14 CO-), stearic acid (CH 3 (CH 2 ) 16 CO-), and arachidic acid (CH 3 (CH 2 ) 18 CO-), and the acyl moieties are optionally substituted as noted above.
  • Q is chosen from acyl moieties in which R 1 represents C2-35 alkenyl, Cio-3o alkenyl, and C 12 -i8 alkenyl and is optionally substituted as noted above.
  • Q is chosen from acyl moieties in which R 1 represents C 2 - 3 5 alkynyl, C 0-30 alkynyl, and Cn-is alkynyl and is optionally substituted as noted above.
  • R 1 represents C 2 - 3 5 alkynyl, C 0-30 alkynyl, and Cn-is alkynyl and is optionally substituted as noted above.
  • Q is chosen from acyl moieties in which R 1 represents ethynyl, propynyl, and butynyl, and the acyl moieties are optionally substituted as noted above.
  • Q is chosen from acyl moieties in which R 1 represents C 3 _ 2 o cycloalkyl, Cs_ 12 cycloalkyl, and Ce-io cycloalkyl, and is optionally substituted as noted above.
  • Q is chosen from acyl moieties in which R 1 represents single ring structures, for example, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, and cyclooctyl; multiple ring structures, for example, adamantyl and bicyclo[2.2.1]heptane, and the acyl moieties are optionally substituted as noted above.
  • Q is chosen from acyl moieties in which R 1 represents C 3 _ 2 o cycloalkenyl, Cs_ 12 cycloalkenyl, and C 6 -io cycloalkenyl, and is optionally substituted as noted above.
  • R 1 represents C 3 _ 2 o cycloalkenyl, Cs_ 12 cycloalkenyl, and C 6 -io cycloalkenyl
  • the cycloalkyenyl has one, two, or three double bonds, and the acyl moieties are optionally substituted as noted above.
  • Q is chosen from acyl moieties in which R 1 represents C 6 -2o cycloalkynyl, C 8 -i6 cycloalkynyl, and Cio-u cycloalkynyl, and is optionally substituted as noted above.
  • R 1 represents C 6 -2o cycloalkynyl, C 8 -i6 cycloalkynyl, and Cio-u cycloalkynyl
  • the cycloalkynyl has one, two, or three triple bonds, and the acyl moieties are optionally substituted as noted above.
  • Q is chosen from acyl moieties in which R 1 represents heterocyclyl constituting of 5 to 15 carbon atoms or of 8 to 12 carbon atoms, with one, two, three, four, five, or six heteroatoms independently selected from N, O, S or P, in which the nitrogen, sulphur and phosphorus heteroatoms may optionally be oxidized, in which the nitrogen atoms may optionally be quaternerized, and the acyl moieties are optionally substituted as noted above.
  • Q is chosen from acyl moieties in which R 1 represents a hetercyclyl chosen from morpholinyl, oxazolidinyl, tetrahydrofuranyl, dihydrofuranyl, dihydropyridinyl, dihydroisooxazolyl, dihydrobenzofuryl, azabicyclohexyl, dihydroindonyl, piperidinyl and piperazinyl, and the acyl moieties are optionally substituted as noted above.
  • R 1 represents a hetercyclyl chosen from morpholinyl, oxazolidinyl, tetrahydrofuranyl, dihydrofuranyl, dihydropyridinyl, dihydroisooxazolyl, dihydrobenzofuryl, azabicyclohexyl, dihydroindonyl, piperidinyl and piperazinyl, and the acyl moieties are optionally substituted as noted above.
  • Q is chosen from acyl moieties in which R 1 represents aryl constituting of 5 to 15 carbon atoms or of 6 to 10 carbon atoms, and the acyl moieties are optionally substituted as noted above.
  • Q is chosen from acyl moieties in which R 1 represents aryl chosen from phenyl and naphthyl, and the acyl moieties are optionally substituted as noted above.
  • Q is chosen from acyl moieties in which R 1 represents heteroaryl constituting of 5 to 15 carbon atoms or 8 to 12 carbon atoms, containing one, two, three, four, five, or six heteroatoms independently selected from N, O, S or P, in which the nitrogen, sulphur and phosphorus heteroatoms may optionally be oxidized, in which the nitrogen atoms may optionally be quaternerized, and the acyl moieties are optionally substituted as noted above.
  • Q is chosen from acyl moieties in which R 1 represents heteroaryl chosen from oxazolyl, imidazolyl, pyrrolyl, 1,2,3-triazolyl, 1 ,2,4-triazolyl, tetrazolyl, thiazolyl, oxadiazolyl, benzoimidazolyl, thiadiazolyl, pyridinyl, pyridazinyl, pyrimidinyl, thienyl, isoxazolyl, triazinyl, furanyl, benzofuranyl, indolyl, benzothiazolyl, benzoxazolyl, imidazo[l,2-a]pyrimidine, imidazo[l,2- a]pyrazine, and tetrahydroquinoline, and the acyl moieties are optionally substituted as noted above.
  • R 1 is optionally substituted at any available position by from one or more substituents independently selected from heterocyclyl.
  • the heterocyclyl is constituted of 5 to 15 carbon atoms or of 8 to 12 carbon atoms, with one, two, three, four, five, or six heteroatoms independently selected from N, O, S or P, in which the nitrogen, sulphur and phosphorus heteroatoms may optionally be oxidized, and in which the nitrogen atoms may optionally be quaternerized.
  • heterocyclyl is chosen from morpholinyl, oxazolidinyl, tetrahydrofuranyl, dihydrofuranyl, dihydropyridinyl, dihydroisooxazolyl, dihydrobenzofuryl, azabicyclohexyl, dihydroindonyl, piperidinyl and piperazinyl.
  • R 1 is optionally substituted at any available position by from one or more substituents independently selected from aryl.
  • the aryl is constituting of 5 to 15 carbon atoms or of 6 to 10 carbon atoms.
  • aryl is chosen from phenyl and naphthyl.
  • R 1 is optionally substituted at any available position by from one or more substituents independently selected from heteroaryl.
  • the heteroaryl is constituting of 5 to 15 carbon atoms or 8 to 12 carbon atoms, containing one, two, three, four, five, or six heteroatoms independently selected from N, O, S or P, in which the nitrogen, sulphur and phosphorus heteroatoms may optionally be oxidized, and in which the nitrogen atoms may optionally be quaternerized.
  • heteroaryl is chosen from oxazolyl, imidazolyl, pyrrolyl, 1,2,3-triazolyl, 1,2,4- triazolyl, tetrazolyl, thiazolyl, oxadiazolyl, benzoimidazolyl, thiadiazolyl, pyridinyl, pyridazinyl, pyrimidinyl, thienyl, isoxazolyl, triazinyl, furanyl, benzofuranyl, indolyl, benzothiazolyl, benzoxazolyl, imidazo[l,2-a]pyrimidine, imidazo[l,2- a]pyrazine, and tetrahydroquinoline.
  • moiety Q is chosen from acyl moieties in which R 1 represents acetyl, the acyl moiety of biotin (5-[(3aS,4S,6aR)-2- oxohexahydro-lH-thieno[3,4-d]imidazol-4-yl]pentanoic acid),
  • the amylin-mimetic compound is prepared, in some embodiments, from the daughter amylin (SEQ ID 1, SEQ ID 2, or SEQ ID 3).
  • the Q moieties can either be attached by nucleophilic substitution (acylation) on the alpha-amino group and/or epsilon-amino group on lysine- 1, e.g., with OSu-activated esters of the Q moieties, or the Q moieties can be attached by reductive alkylation— on the alpha- amino group and/or epsilon-amino group on lysine- 1— using Q-aldehyde reagents and a reducing agent, such as sodium cyanoborohydride.
  • the present disclosure concerns new non- agglomerating combinations of bioconjugates of amylin or amylin-mimetic compounds with human insulin analogues, wherein said bioconjugates contain at least one molecule of an acylating agent, such as (without excluding any other) polyethylene glycol, acetyl, palmitoyl, myristoyl, or other synthetic polymer (therefore monoconjugate or poly conjugate compounds may be obtained), covalently bonded to the lysine 1 residue of the amylin polypeptide chain, and the insulin analogue is, for example, regular insulin, NPH, Glargine, Detemir, Aspart, Lispro, Glulisine or Degludec. Of course, other insulin anlogues may be used.
  • an acylating agent such as (without excluding any other) polyethylene glycol, acetyl, palmitoyl, myristoyl, or other synthetic polymer (therefore monoconjugate or poly conjugate
  • the new non-agglomerating bioconjugates of amylin or amylin-mimetic compounds are combined to at least one Glucagon-Like Peptide- 1 (GLP-1) receptor agonist, such as semaglutide, exenatide, liraglutide, lixisenatide, albiglutide and dulaglutide.
  • GLP-1 receptor agonist such as semaglutide, exenatide, liraglutide, lixisenatide, albiglutide and dulaglutide.
  • GLP-1 receptor agonists may be used.
  • the present disclosure concerns the use of the instant non-agglomerating bioconjugates of amylin-mimetic compounds and combinations comprising said bioconjugates and insulin analogues for the treatment of type 1 and type 2 diabetes mellitus.
  • the instant non- agglomerating bioconjugates of amylin-mimetic compounds and combinations comprising said bioconjugates and GLP-1 receptor agonists may be used in the clinical therapy of obesity and or type 1 and type 2 diabetes mellitus.
  • the present bioconjugates of amylin and/or amylin-mimetic compounds can be used as therapeutic or prophylactic approaches in the management of a variety of conditions that directly or indirectly concern the agglomeration/deposition of amyloid fibers.
  • pancreatitis hypercalcemia, pain, osteoarthritis, osteoporosis, inflammations, coeliac disease, psoriasis, diseases or problems caused or favored by the amyloid deposition or accumulation that leads to dysfunction or failure of systemic organs, such as hyperglycemia, diabetes, low tolerance to glucose or deficient glucose metabolism, obesity, metabolic syndrome, central nervous system-associated or peripherally-associated feeding disorders and Alzheimer' s disease, and indirectly to problems and vascular diseases resulting from increase in blood pressure, such as atherosclerosis, myocardial infarction, stroke, coronary heart disease, hypertension, cardiac diseases in general and (see, e.g., Young. Amylin: physiology and pharmacology. Gulf Professional Publishing, 2005.; Zhu et al. Molecular psychiatry, v. 20, n. 2, p. 252-262, 2015.).
  • the instant non- agglomerating bioconjugates of amylin- mimetic compounds and combinations comprising the same can be used for the preparation of products, medicaments, compositions and associations, useful in the prevention or treatment of diseases caused or favored by lack or disrupted amylin secretion, amyloid deposition or accumulation, which leads to dysfunction or failure of systemic organs.
  • bioconjugates described herein particularly, bioconjugates of human amylin, makes it possible to show various benefits, such as the following:
  • the instant bioconjugates of human amylin aim to avoid the typical toxicity caused by human amylin and amylin-mimetic compounds, by decreasing or avoiding agglomeration (also mentioned in the literature as polymerization), deposition and fibrillation upon the pancreatic beta-cells and, in consequence, avoiding harmful effects that apoptosis or destruction of said pancreatic beta-cells cause to the human organism.
  • compositions comprising a therapeutically effective amount of one or more of the instant non- agglomerating bioconjugates of amylin-mimetic compounds and one or more pharmaceutically acceptable excipients.
  • Such compositions are adequate for all variety of administration forms such as but not limited to oral, enteral, parenteral, lingual, sublingual, nasal, dermal, epidermal, transdermal, mucosal, vaginal, rectal, ocular, etc.
  • compositions comprising a combination of a therapeutically effective amount of one or more of the instant non-agglomerating bioconjugates of amylin-mimetic compounds and one or more pharmaceutically acceptable excipients and a therapeutically effective amount of one or more insulins.
  • Such compositions are adequate for all variety of administration forms such as but not limited to oral, enteral, parenteral, lingual, sublingual, nasal, dermal, epidermal, transdermal, mucosal, vaginal, rectal, ocular, etc.
  • compositions are also contemplated.
  • compositions present themselves in any necessary or adequate dosage forms, such as solutions, suspensions, emulsions, microemulsions, foams, pastes, creams, tablets, capsules (hard or soft, suppositories), bolus, gels, powders, aerosols, sprays, etc.
  • compositions are known to the person skilled in the art, such as the ones described, for instance, in "Remington's Pharmaceutical Sciences", 15th edition, Mack Publishing Co., New Jersey (1991). As known, specific excipients are chosen according to the desired administration route, within the practice of the pharmacological area.
  • compositions may additionally comprise one or more active principles, distinct from human amylin, such as but not limited to insulin analogues, ions (such as zinc and sodium), GLP-1 receptor agonists, antidiabetics, antibiotics, anti-inflammatory, anti-hypertensives, antiretrovirals, etc.
  • active principles distinct from human amylin, such as but not limited to insulin analogues, ions (such as zinc and sodium), GLP-1 receptor agonists, antidiabetics, antibiotics, anti-inflammatory, anti-hypertensives, antiretrovirals, etc.
  • active principles distinct from human amylin, such as but not limited to insulin analogues, ions (such as zinc and sodium), GLP-1 receptor agonists, antidiabetics, antibiotics, anti-inflammatory, anti-hypertensives, antiretrovirals, etc.
  • Such compositions may be of immediate, retarded or slow release, also including the possibility that the administration of the new bioconjugate of human amylin
  • Still another aspect concerns the use of non-agglomerating bioconjugates of human amylin as an adjuvant in the prevention or treatment of diseases caused or favored by lack or disrupted amylin secretion, amyloid deposition or accumulation that lead to dysfunction or failure of systemic organs.
  • Still another aspect concerns a medicament characterized by the fact that it comprises a therapeutically effective amount of one or more bioconjugates of human amylin.
  • Still another aspect concerns bioconjugates of human amylin, as well as products, medicaments, compositions and associations that comprise them, characterized for the use in medical therapy.
  • Still another aspect concerns a method of treatment or prevention of diseases caused or favored by amyloid deposition or accumulation, characterized by comprising the administration to a patient of a therapeutically effective amount of one or more bioconjugates of amylin-mimetic compounds, particularly human amylin.
  • the present disclosure concerns the use of the instant non-agglomerating bioconjugates of amylin-mimetic compounds and combinations comprising the said bioconjugates and insulin analogues for the treatment of type 1 and type 2 diabetes mellitus.
  • diabetes also encompasses other diseases and dysfunctions directly or indirectly related to the agglomeration/deposition of amyloid fibers.
  • the present disclosure concerns the use of the instant non-agglomerating bioconjugates of amylin-mimetic compounds and combinations comprising the said bioconjugates and GLP-1 receptor agonists in the clinical therapy of obesity.
  • Matrix-assisted laser desorption and ionization-time-of flight mass spectrometry was performed to characterize monoPEGylated human amylin.
  • Figure 2 shows the peak of hAmy-PEG5k at 9 KDa and the m/z ratio for hAmy-PEG20k is depicted in Figure 4.
  • EXAMPLE 2 RECEPTOR BINDING ASSAY OF HUMAN AMYLIN AND MONOPEGYLATED HUMAN AMYLIN
  • RAMP receptor activity modifying protein
  • fluorescein isothiocianate for 1 h at 4 °C in PBS (fetal bovine serum) pH 7.4, and purified by size exclusion chromatography (SEC) in Sepharose G25 (agarose-based chromatography media, provided by the US company GE Healthcare) using the same buffer. Labelling was confirmed by UV absorbance measurements at A280 and A490, allowing estimation of coupling efficiency, relying on about 0.5 fluorescein/RAMP molecule.
  • Binding was performed by measuring the fluorescence anisotropy of RAMP-FITC (fluorescein isothiocyanate) as a function of free murine amylin, hAmy-PEG5k and by using the unrelated protein hen egg white lisozyme (HEWL) as a control for non-specific binding.
  • RAMP-FITC fluorescein isothiocyanate
  • HEWL unrelated protein hen egg white lisozyme
  • binding assay show a similar apparent binding affinity of both free and purified hAmy-PEG5k for the coreceptors RAMP2 and RAMP3, in duplicate assays (monoPEGylated human amylin C#l and C#2; and free amylin #1 and #2), indicating that the PEG moiety does not interfere with the coreceptor affinity.
  • Control assay using HEWL show nonspecific binding to either coreceptor.
  • Biological activity of human amylin and its PEGylated analogs was determined by cyclic adenosine monophosphate (cAMP) production assay using MCF-7 cells naturally expressing human amylin receptors.
  • the assay was performed in 96 well half area plates, in a total reaction volume of 20 ⁇ /well. Briefly, 4000 cells (freshly thawed) per well were incubated in suspension for 30 minutes at 37 °C in HBSS supplemented with 20 mM HEPES (pH 7.4), 0.1 % BSA and 500 ⁇ IBMX (phosphodiesterase inhibitor) in the presence of Amylin (reference compound), hAmyPEG5k, hAmyPEG20k or control (untreated).
  • cAMP cyclic adenosine monophosphate
  • EXAMPLE 4 EFFECT OF PEGYLATION ON THE AGGREGATION PROFILE OF HUMAN
  • ThT Thioflavin T
  • Figure 9 A shows fast plasma decay of free amylin, while the hAmy-
  • PEG5k (Fig. 9B) and hAmy-PEG20k (Fig. 9C) show longer duration of stability in plasma. This assay proves that the process of PEGylation of human amylin is capable of modulating its half-life.
  • EXAMPLE 6 EFFECT OF DIFFERENT ACYLATING AGENTS ON THE PI OF HUMAN
  • the strips were fixed with 0.20 % glutaraldehyde (in 30 % ethanol, 0.2 M sodium acetate) for 60 min at room temperature, and then stained for peptide identification by Coomassie brilliant blue R-250 (at 0.025 % in 40 % methanol, 7 % acetic acid) for 30 min.
  • the excess of Coomassie was removed by incubation with 0.1 % acetic acid until no background visualization.
  • the IEF can be easily calculated from the relationship between displacements in the strips and H.
  • the acetylation of Lys 1 present in AcO-hAmy Fig. 10A
  • the PEGylation in the same site, present in hAmy-PEG5k results in similar effects on the pi of human amylin, increasing it to approximately 9.2.
  • EXAMPLE 7 EFFECT OF DIFFERENT ACYLATING AGENTS ON THE AGGREGATION PROFILE OF HUMAN AMYLIN IN TIME AND PH-DEPENDENT SETTINGS
  • EXAMPLE 8 SHORT-TERM STABILITY OF HAMY-PEG5K AND INSULIN ANALOGUES UPON COMBINATION
  • Figure 14A shows that hAmy aggregates while hAmy-PEG5k does not.
  • Figure 14B shows insulin R, glargine, and detemir have negligible aggregation.
  • Figure 14C shows that human amylin combined with insulin aggregates, but Figure 14D shows that hAmy-PEG5k combined with insulin does not aggregate.
  • Figure 15 shows that human amylin added to liraglutide solution induces amyloid aggregation whereas the solution comprising hAmy-PEG5k with liraglutide clearly had no traces of amyloid aggregation.
  • Figure 16 shows that human amylin added to liraglutide solution induces amyloid aggregation whereas the solution comprising hAmy-PEG20k with liraglutide clearly had no traces of amyloid aggregation.
  • this assay proves that the combination of hAmy-PEG5k with different insulin analogs or GLP-1 analogs remains stable for 24h.
  • EXAMPLE 9 LONG-TERM STABILITY OF MONOPEG-HAMY5K AND INSULIN ANALOGUES UPON COMBINATION.
  • PEGylated human amylin (0.2 mg/mL or 1.0 mg/mL) was added to the original formulation of each selected insulin-based product (glargine and detemir), avoiding major interferences in the insulin regular vehicle.
  • the combinations were manipulated under sterile environment and kept under refrigerated conditions (4 °C) for a 6 month period. Stability of the solutions was measured by ThT-binding assay, dynamic light scattering and transmission electron microscopy. Samples were also analyzed by high performance liquid chromatography to confirm integrity of the active constituents.
  • Figure 17 shows the result of the long-term stability of hAmy-PEG5k and insulin (Glargine and Detemir) by Dynamic Light Scattering. This assay proves that the combination remains stable for 6 months.
  • Figure 18 shows the result of the long-term stability of hAmy-PEG5k and insulin (Glargine and Detemir) by Thioflavin T binding. This assay shows that the combination does not aggregate during 6 months, proving, therefore, that the combination remains stable for 6 months.
  • Figure 19 shows the result of the long-term stability of hAmy-PEG5k and insulin (Glargine) by HPLC. This assay shows that the insulin remains stable for 6 months.
  • Figure 20 shows the result of the long-term stability of hAmy-PEG5k and insulin (Detemir) by HPLC. This assay shows that the insulin remains stable for 6 months.
  • EXAMPLE 10 EFFECT OF PEG-HAMY20K UPON FOOD INTAKE (EI) OF HEALTHY RATS
  • Figure 21 C shows that animals administered with 4 mg/Kg experienced a remarkable positive effect for 5 days, while those treated with 2 mg/Kg gained significant less weight only within the first 24h of test (* p ⁇ 0.05; *** or +++ p ⁇ 0.001, compared to vehicle in all cases).
  • EXAMPLE 11 EFFECT OF PEG-HAMY20K UPON GASTRIC EMPTYING RATE OF HEALTHY RATS
  • figure 24 shows the test compound had a significant but mild interference on glycemia after an oral glucose administration, whereas the positive control had a more pronounced effect (*, +, $, #, ⁇ p ⁇ 0.05 compared to vehicle; ** p ⁇ 0.01 compared to vehicle).

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Abstract

La présente invention concerne des bioconjugués non agglomérants d'amyline et de composés mimétiques de l'amyline, ainsi que des combinaisons contenant lesdites substances, lesdits bioconjugués contenant au moins une unité acyle. Elle concerne également une méthode de préparation et d'utilisation desdits bioconjugués. Dans certains modes de réalisation, un bioconjugué d'amyline instantané non agglomérant peut être utilisé pour traiter une maladie associée à un manque de production d'amyline et/ou au dépôt ou à l'accumulation de fibres amyloïdes extracellulaires, qui contribuent au dysfonctionnement ou à la défaillance d'organes systémiques tels que le pancréas ou le cerveau.
EP16874176.7A 2015-12-14 2016-12-14 Bioconjugués non agglomérants d'amyline et de composés mimétiques de l'amyline, compositions contenant lesdits conjugués, leur préparation et leur utilisation Withdrawn EP3394090A4 (fr)

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