WO2012138867A2 - Long-acting peptide analogs - Google Patents
Long-acting peptide analogs Download PDFInfo
- Publication number
- WO2012138867A2 WO2012138867A2 PCT/US2012/032333 US2012032333W WO2012138867A2 WO 2012138867 A2 WO2012138867 A2 WO 2012138867A2 US 2012032333 W US2012032333 W US 2012032333W WO 2012138867 A2 WO2012138867 A2 WO 2012138867A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- peptide
- acid
- adrenomedullin
- intermedin
- seq
- Prior art date
Links
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Classifications
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- 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
- A61K38/23—Calcitonins
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- 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
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- 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
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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
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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
- A61P9/02—Non-specific cardiovascular stimulants, e.g. drugs for syncope, antihypotensives
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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
- 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
- A61P9/12—Antihypertensives
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- 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
-
- 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
- C07K14/585—Calcitonins
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/50—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K16/00—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies
- C07K16/18—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies against material from animals or humans
- C07K16/28—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants
Definitions
- hypothalamic releasing peptides are important in the regulation of the secretion of different anterior pituitary hormones such as GH, ACTH, TSH, LH, and FSH.
- the regulation of prolactin release by the anterior pituitary is more complex, and involves stimulatory factors originating from both the hypothalamus and the intermediate lobe (see Laudon et al. (1990) Endocrinology 126:3185-3192; Ben-Jonathan and Hnasko (2001 ) Endocr. Rev. 22:724-763).
- CRLR pituitary calcitonin receptor-like receptor
- calcitonin belongs to a group of peptide hormones including a CGRP, ⁇ CGRP, adrenomedullin (ADM), and amylin (Eto (2001 ) Peptides 22:1693-171 1 ). These tissue-specific peptides are important endocrine and neurocrine integrators for homeostasis maintenance in the vascular and respiratory systems.
- RAMP calcitonin receptor-like receptor
- RAMPs receptor activity-modifying proteins
- CGRP calcitonin gene-related peptide
- ADM adrenomedullin
- the formation of heterodimers between RAMPs and CRLR is essential for the proper cell surface targeting and pharmacological characteristics of both CGRP and ADM receptors.
- the RAMP family comprises three members (RAMP1 , -2, and -3), which share less than 30% sequence identity but a common topological organization.
- RAMP1 small intrinsic membrane proteins (predicted sizes: M r 14,000-17,000) with a large extracellular N terminus (-100 amino acids), a single transmembrane domain, and a very short intracellular domain (10 amino acids).
- RAMP2 and RAMP3 promote the expression of an ADM receptor.
- the calcitonin receptor When the calcitonin receptor is co-expressed with RAMP1 it provides for a CGRP/amylin receptor, and with RAMP3 it provides for an amylin receptor.
- Peptide hormones are of great interest for clinical use and the development of therapies, including treatment of hypertension and maintenance of cardiovascular homeostasis.
- identification of prolcatin releasing factor is of interest.
- prolactin is important in pregnancy and lactation in mammals, and is involved in the development of the mammary glands and the promotion of milk synthesis, a specific prolactin-releasing hormone has hitherto remained unknown.
- Long-acting peptide analogs are provided herein, which provide for the biological activities of intermedin, or of adrenomedullin, including acting as ligand for the calcitonin receptor-like receptor, but which provide for a substantially longer in vivo half-life when compared to the native polypeptide.
- Analogs of the invention provide for an in vivo effectiveness that lasts at least 2-fold longer in duration than the native peptide, and may be 5-fold longer, 10-fold longer, 20-fold longer, or more.
- the increased in vivo activity may be measured in vivo or in vitro, by determining the stability of the polypeptide, the length of the physiological effect, and the like.
- the analogs comprise a biologically active intermedin or adrenomedullin polypeptide that has been modified at the N-terminus.
- N- terminal modifications of interest include conjugation to a fatty acid, usually a C4 to C30 fatty acid, which may be unsaturated or saturated.
- Fatty acids of interest include, without limitation, palmitic acid; stearic acid; arachidic acid; lauric acid; myristic acid; myristoleic acid; palmitoleic acid; sapienic acid; oleic acid; linoleic acid; oc-linolenic acid; arachidonic acid; eicosapentaenoic acid; erucic acid; docosahexaenoic acid; etc.
- the polypeptide is modified by pegylation, glycosylation, conjugation to large proteins such as albumin, or conjugation with polymers in combination with amino acid modifications such as the use of D-amino acid or beta amino acids to increase the biological half-life.
- the analogs of the invention provide a long-acting agonistic analogs for CLR/RAMP receptors.
- the analogs may provide limited effect on heart rate while effecting blood pressure significantly.
- the compartmentalization of the long-acting peptide in serum effectively decreased the available fraction of agonists for cell stimulation at a give time point, thereby alleviating the peak and trough effects of injected peptides and eliminating unwanted side effects.
- Figures 1 A-1 C are examples of blood pressure measurements in SHR rats after treatment with a long-acting intermedin peptide (Palmitic acid-modified IMD, IMD-PA), A. 30 nmoles/kg BW; B/C, 100 nmoles/kg BW.
- IMD-PA intermedin peptide
- Figures 2A-2B are examples of blood pressure measurements in SHR rates after injection with a wild type intermedin peptide (IMD, 100 nmoles/kg BW).
- IMD intermedin peptide
- IMD peptide lasted less than 1 hr.
- Figures 3A-3B are BP measurements after injection with PBS in control animals.
- Figure 4 shows the stimulatory effect of IMD and IMD-PA in 293T cells expressing three different receptors (CLR/RAMP1 , CLR/RAMP2, and CLR/RAMP3).
- Figures 5A-5C show examples of systolic pressure measurement of SHR rats after an injection of a long-acting adrenomedullin peptide (Palmitic acid-conjugated ADM, ADM-
- PA 100 nmoles/kg BW.
- the hypotensive effect of this peptide lasted over five hours in vivo.
- the hypotensive effect of unmodified ADM peptide normally lasts less than 1 .5 hr.
- Figures 6A-6B show examples of systolic pressure measurement of SHR rats after an injection of control saline.
- Figure 7 shows the stimulatory effect of ADM and ADM-PA in 293T cells expressing recombinant adrenomedullin receptor 1 (CLR/RAMP2) and 2 (CLR/RAMP3).
- CLR/RAMP2 recombinant adrenomedullin receptor 1
- CLR/RAMP3 recombinant adrenomedullin receptor 1
- Figure 8 shows that a significantly higher level of immunoreactive ADM-PA is retained in vivo as compared to the ADM peptide at 12 hr after i.p. injection.
- the invention provides novel polypeptide analogs of intermedin or adrenomedullin, which are members of the calcitonin peptide hormone family.
- Intermedin is a ligand for the calcitonin receptor-like receptor.
- the human intermedin gene encodes a 148-amino-acid open reading frame, with a 24-amino-acid signal peptide for secretion at the N-terminus and a mature amidated peptide (shown in SEQ ID NO:1 and SEQ ID NO:2).
- Mature human intermedin peptides include without limitation a 40 amino-acid peptide (intermedin-short or IMDS), set forth as SEQ ID NO:3, which corresponds to residues 8-47 of the mature protein; and a 47-amino-acid mature peptide (intermedin-long or IMDL), set forth as SEQ ID NO:4.
- the intermedin peptide may be substituted with a terminal lysine residue for ease of modification.
- an intermedin peptide of interest is as set forth in SEQ ID NO:7: K(mod)GCVLGTCQVQNLSHRLWQLMGPAGRQDSAPVDPSSPHSY, where the terminal lysine is modified, e.g. by attachment of a lipid or other group.
- Adrenomedullin is a ligand for the calcitonin receptor-like receptor.
- the ADM gene encodes for a preprohormone, which is posttranslationally modified to generate 2 biologically active peptides: adrenomedullin and proadrenomedullin N-terminal 20 peptide (PAMP).
- Adrenomedullin consists of 52 amino acids, has 1 intramolecular disulfide bond, and shows slight homology with the calcitonin gene-related peptide.
- the precursor, called preproadrenomedullin is 185 amino acids long. See Genbank reference NM 001 124, herein specifically incorporated by reference.
- the precursor polypeptide (SEQ ID NO:5) has the amino acid sequence:
- adrenomedullin peptide may refer to any active peptide derived from the adrenomedullin precursor peptide, unless otherwise specified. Of particular interest are hypotensive peptides.
- the active peptide includes, without limitation, the adrenomedullin peptide having the amino acid sequence (SEQ ID NO:6)
- K(mod)GCRFGTCTVQKLAHQIYQFTDKDKDNVAPRSKISPQGY where the lysine at residue 1 is modified, e.g. by attachment of a lipid or other group.
- one or more of intermedin and adrenomedullin are modified by the methods of the invention to provide for a long-lived analog.
- the analogs comprise a biologically active polypeptide that has been modified at the N-terminus, a shown in structure I.
- the polypeptide may be modified by pegylation, glycosylation, conjugation to large proteins such as albumin, or conjugation with polymers in combination with amino acid modifications such as the use of D-amino acid or beta amino acids to increase the biological half-life.
- Ri is a linear or branched C 3 -Ci 0 o alkyl; preferably a C 4 -C 3 o alkyl optionally substituted with halo, hydroxy, alkoxy, amino, alkylamino, dialkylamino, sulfate, or phosphate, and which may by saturated, or mono- or di-unsaturated, e.g. 18:0, 24:0 and 24:1 .
- Fatty acids of interest include, without limitation, palmitic acid; stearic acid; arachidic acid; lauric acid; myristic acid; myristoleic acid; palmitoleic acid; sapienic acid; oleic acid; linoleic acid; oc-linolenic acid; arachidonic acid; eicosapentaenoic acid; erucic acid; docosahexaenoic acid; etc.
- Analogs of the invention provide for an in vivo effectiveness that lasts at least 2-fold longer in duration than the native peptide, and may be 5-fold longer, 10-fold longer, 20-fold longer, or more.
- the increased in vivo activity may be measured in vivo or in vitro, by determining the stability of the polypeptide, the length of the physiological effect, and the like.
- the hypotensive effect where a single dose of the analog peptide effective in reducing systolic blood pressure by at least about 10% is effective in maintaining reduced blood pressure for at least about 1 hour, at least about 2 hours, at least about 3 hours, at least about 4 hours, or more.
- Intermedins and adrenomedullins are ligands of the CLR/RAMP receptors, and activate the receptor upon binding. Activation by intermedin results in the release of prolactin, regulation of growth hormone release, in the vascular system effects include lowering of blood pressure and vasodilation. Thus, intermedin signals through the CRLR to regulate peripheral vasodilatation-related processes. Activation by adrenomedullin results in the vascular system effects including lowering of blood pressure and vasodilation. Thus, adrenomedullin signals through the CRLR to regulate peripheral vasodilation-related processes.
- native intermedin, adrenomedullin or variants thereof may be used.
- Peptides of interest include fragments of at least about 12 contiguous amino acids, more usually at least about 20 contiguous amino acids, and may comprise 30, 35, 40 or more amino acids, up to the complete peptide, and may extend further to comprise other sequences present in the precursor protein. Deletions may extend from residue 1 through 10 of the peptide, and may further delete additionally amino acids at residues 10-15 or more. Smaller deletions, of from 1 to to 5 amino acids, may be deleted in the N-terminus.
- Peptides of interest for therapeutic purposes may include all or substantially all of the provided peptide, or may comprise fragments thereof that retain the biological activity of intermedin.
- sequence of the polypeptide may be altered in various ways known in the art to generate targeted changes in sequence.
- the polypeptide will usually be substantially similar to the sequences provided herein, i.e. will differ by at least one amino acid, and may differ by at least two but not more than about ten amino acids.
- the sequence changes may be substitutions, insertions or deletions. Scanning mutations that systematically introduce alanine, or other residues, may be used to determine key amino acids.
- Conservative amino acid substitutions typically include substitutions within the following groups: (glycine, alanine); (valine, isoleucine, leucine); (aspartic acid, glutamic acid); (asparagine, glutamine); (serine, threonine); (lysine, arginine); or (phenylalanine, tyrosine).
- Modifications of interest that do not alter primary sequence include chemical derivatization of polypeptides, e.g., acetylation, or carboxylation. Also included are modifications of glycosylation, e.g. those made by modifying the glycosylation patterns of a polypeptide during its synthesis and processing or in further processing steps; e.g. by exposing the polypeptide to enzymes which affect glycosylation, such as mammalian glycosylating or deglycosylating enzymes. Also embraced are sequences that have phosphorylated amino acid residues, e.g. phosphotyrosine, phosphoserine, or phosphothreonine.
- modifications of glycosylation e.g. those made by modifying the glycosylation patterns of a polypeptide during its synthesis and processing or in further processing steps; e.g. by exposing the polypeptide to enzymes which affect glycosylation, such as mammalian glycosylating or deglycosylating enzymes
- polypeptides that have been modified using ordinary molecular biological techniques and synthetic chemistry so as to improve their resistance to proteolytic degradation or to optimize solubility properties or to render them more suitable as a therapeutic agent.
- the backbone of the peptide may be cyclized to enhance stability (see Friedler et al. (2000) J. Biol. Chem. 275:23783-23789).
- Analogs of such polypeptides include those containing residues other than naturally occurring L-amino acids, e.g. D-amino acids or non-naturally occurring synthetic amino acids.
- the subject peptides may be prepared by in vitro synthesis, using conventional methods as known in the art.
- Various commercial synthetic apparatuses are available, for example, automated synthesizers by Applied Biosystems, Inc., Foster City, CA, Beckman, etc.
- synthesizers By using synthesizers, naturally occurring amino acids may be substituted with unnatural amino acids.
- the particular sequence and the manner of preparation will be determined by convenience, economics, purity required, and the like.
- cysteines can be used to make thioethers, histidines for linking to a metal ion complex, carboxyl groups for forming amides or esters, amino groups for forming amides, and the like.
- the polypeptides may also be isolated and purified in accordance with conventional methods of recombinant synthesis.
- a lysate may be prepared of the expression host and the lysate purified using HPLC, exclusion chromatography, gel electrophoresis, affinity chromatography, or other purification technique.
- the compositions which are used will comprise at least 20% by weight of the desired product, more usually at least about 75% by weight, preferably at least about 95% by weight, and for therapeutic purposes, usually at least about 99.5% by weight, in relation to contaminants related to the method of preparation of the product and its purification. Usually, the percentages will be based upon total protein.
- intermedin and adrenomedullin In light of the pharmacologic activities of intermedin and adrenomedullin numerous clinical indications are evident, and include without limitation hypertension, for example pregnancy hypertension, pulmonary arterial hypertension, hypertension associated with diabetes, etc.; bronchopulmonary dysplasia, would healing; and the like
- the analogs of the invention provide for a decrease in blood pressure, e.g. systolic pressure of at least about 5%, at least about 10%, at least about 15%, at least about 20% or more, without affecting heart rate.
- Hypertension is a disease which, if untreated, strongly predisposes to atherosclerotic cardiovascular disease. It is estimated that as many as 1 in 4 adult Americans have hypertension. Hypertension is approximately twice as common in persons with diabetes as in those without. The prevalence of hypertension increases with age.
- Hypertension should not be diagnosed on the basis of a single measurement. Initial elevated readings should be confirmed on at least two subsequent visits over one week or more with average diastolic blood pressure of 90 mmHg or greater or systolic blood pressure of 140 mmHg or greater required for diagnosis of hypertension. Special care is warranted in diagnosing hypertension in persons with diabetes because of greater variability of blood pressure and a much greater likelihood of isolated systolic hypertension. A goal blood pressure of less than 130/85 mmHg is recommended for these patients.
- pharmacological treatment may be required to control high blood pressure.
- the subject peptides may be administered to reduce arterial blood pressure.
- a secondary effect of reducing hypertension is reduction of edema and inflammatory exudate volume.
- compositions containing intermedin or adrenomedullin analogs are useful as cardioprotective agents, e.g. to ameliorate ischemic injury or myocardial infarct size consequent to myocardial ischemia.
- cardioprotective agents e.g. to ameliorate ischemic injury or myocardial infarct size consequent to myocardial ischemia.
- the development of new therapeutic agents capable of limiting the extent of myocardial injury, i.e., the extent of myocardial infarction, following acute myocardial ischemia is a major concern of modern cardiology.
- therapies capable of providing additional myocardial protection which could be administered in conjunction with thrombolytic therapy, or alone, since retrospective epidemiological studies have shown that mortality during the first few years following infarction appears to be related to original infarct size.
- Myocardial ischemia is the result of an imbalance of myocardial oxygen supply and demand and includes exertional and vasospastic myocardial dysfunction.
- Exertional ischemia is generally ascribed to the presence of critical atherosclerotic stenosis involving large coronary arteries resulting in a reduction in subendocardial flow.
- Vasospastic ischemia is associated with a spasm of focal variety, whose onset is not associated with exertion or stress. The spasm is better defined as an abrupt increase in vascular tone.
- the compounds of this invention can be normally administered orally or parenterally, in the treatment of patients in need of cardioprotective therapy.
- the dosage regimen is that which insures maximum therapeutic response until improvement is obtained and thereafter the minimum effective level that gives relief.
- the dosages are those that are therapeutically effective in producing a cardioprotective effect, i.e., amelioration of ischemic injury or myocardial infarct size consequent to myocardial ischemia. It is also anticipated that the peptides would be useful as an injectable dosage form which may be administered in an emergency to a patient suffering from myocardial ischemia, etc.
- the intermedin or adrenomedullin peptides and derivatives therefrom also find use in the reduction of edema, for example in rheumatoid arthritis, edema secondary to brain tumors or irradiation for cancer, edema resulting from stroke, head trauma or spinal cord injury, post-surgical edema, asthma and other respiratory diseases and cystoid macular edema of the eye.
- the compounds of this invention can be incorporated into a variety of formulations for therapeutic administration. Particularly, agents that modulate intermedin or adrenomedullin activity, or intermedin or adrenomedullin polypeptides and analogs thereof are formulated for administration to patients for the treatment of intermedin or adrenomedullin dysfunction, where the activity is undesirably high or low.
- the compounds of the present invention can be formulated into pharmaceutical compositions by combination with appropriate, pharmaceutically acceptable carriers or diluents, and may be formulated into preparations in solid, semi-solid, liquid or gaseous forms, such as tablets, capsules, powders, granules, ointments, solutions, suppositories, injections, inhalants, gels, microspheres, and aerosols.
- administration of the compounds can be achieved in various ways, including oral, buccal, rectal, parenteral, intraperitoneal, intradermal, transdermal, intracheal, etc., administration.
- the active agent may be systemic after administration or may be localized by the use of an implant that acts to retain the active dose at the site of implantation.
- the compounds may be administered in the form of their pharmaceutically acceptable salts, or they may also be used alone or in appropriate association, as well as in combination with other pharmaceutically active compounds.
- the following methods and excipients are merely exemplary and are in no way limiting.
- the compounds can be used alone or in combination with appropriate additives to make tablets, powders, granules or capsules, for example, with conventional additives, such as lactose, mannitol, corn starch or potato starch; with binders, such as crystalline cellulose, cellulose derivatives, acacia, corn starch or gelatins; with disintegrators, such as corn starch, potato starch or sodium carboxymethylcellulose; with lubricants, such as talc or magnesium stearate; and if desired, with diluents, buffering agents, moistening agents, preservatives and flavoring agents.
- conventional additives such as lactose, mannitol, corn starch or potato starch
- binders such as crystalline cellulose, cellulose derivatives, acacia, corn starch or gelatins
- disintegrators such as corn starch, potato starch or sodium carboxymethylcellulose
- lubricants such as talc or magnesium stearate
- the compounds can be formulated into preparations for injections by dissolving, suspending or emulsifying them in an aqueous or nonaqueous solvent, such as vegetable or other similar oils, synthetic aliphatic acid glycerides, esters of higher aliphatic acids or propylene glycol; and if desired, with conventional additives such as solubilizers, isotonic agents, suspending agents, emulsifying agents, stabilizers and preservatives.
- the compounds can be utilized in aerosol formulation to be administered via inhalation.
- the compounds of the present invention can be formulated into pressurized acceptable propellants such as dichlorodifluoromethane, propane, nitrogen and the like.
- the compounds can be made into suppositories by mixing with a variety of bases such as emulsifying bases or water-soluble bases.
- bases such as emulsifying bases or water-soluble bases.
- the compounds of the present invention can be administered rectally via a suppository.
- the suppository can include vehicles such as cocoa butter, carbowaxes and polyethylene glycols, which melt at body temperature, yet are solidified at room temperature.
- Unit dosage forms for oral or rectal administration such as syrups, elixirs, and suspensions may be provided wherein each dosage unit, for example, teaspoonful, tablespoonful, tablet or suppository, contains a predetermined amount of the composition containing one or more compounds of the present invention.
- unit dosage forms for injection or intravenous administration may comprise the compound of the present invention in a composition as a solution in sterile water, normal saline or another pharmaceutically acceptable carrier.
- Implants for sustained release formulations are well-known in the art. Implants are formulated as microspheres, slabs, etc. with biodegradable or non-biodegradable polymers. For example, polymers of lactic acid and/or glycolic acid form an erodible polymer that is well-tolerated by the host. The implant is placed in proximity to the site of infection, so that the local concentration of active agent is increased relative to the rest of the body.
- unit dosage form refers to physically discrete units suitable as unitary dosages for human and animal subjects, each unit containing a predetermined quantity of compounds of the present invention calculated in an amount sufficient to produce the desired effect in association with a pharmaceutically acceptable diluent, carrier or vehicle.
- the specifications for the novel unit dosage forms of the present invention depend on the particular compound employed and the effect to be achieved, and the pharmacodynamics associated with each compound in the host.
- compositions such as vehicles, adjuvants, carriers or diluents
- pharmaceutically acceptable auxiliary substances such as pH adjusting and buffering agents, tonicity adjusting agents, stabilizers, wetting agents and the like, are readily available to the public.
- Typical dosages for systemic administration range from 0.1 ⁇ g to 100 milligrams per kg weight of subject per administration.
- a typical dosage may be one tablet taken from two to six times daily, or one time-release capsule or tablet taken once a day and containing a proportionally higher content of active ingredient.
- the time-release effect may be obtained by capsule materials that dissolve at different pH values, by capsules that release slowly by osmotic pressure, or by any other known means of controlled release.
- dose levels can vary as a function of the specific compound, the severity of the symptoms and the susceptibility of the subject to side effects. Some of the specific compounds are more potent than others. Preferred dosages for a given compound are readily determinable by those of skill in the art by a variety of means. A preferred means is to measure the physiological potency of a given compound.
- Liposomes may be used for protein delivery in vivo and in vitro.
- the liposomes employed in the present invention can be prepared using any one of a variety of conventional liposome preparatory techniques. As will be readily apparent to those skilled in the art, such conventional techniques include sonication, chelate dialysis, homogenization, solvent infusion coupled with extrusion, freeze-thaw extrusion, microemulsification, as well as others. These techniques, as well as others, are discussed, for example, in U.S. Pat. No. 4,728,578, U.K. Patent Application G.B. 2193095 A, U.S. Pat. No. 4,728,575, U.S. Pat. No.
- the materials that are utilized in preparing the liposomes include any of the materials or combinations thereof known to those skilled in the art as suitable in liposome construction.
- the lipids used may be of either natural or synthetic origin. Such materials include, but are not limited to, lipids such as cholesterol, phosphatidylcholine, phosphatidylethanolamine, phosphatidylserine, phosphatidylglycerol, phosphatidic acid, phosphatidylinositol, lysolipids, fatty acids, sphingomyelin, glycosphingolipids, glucolipids, glycolipids, sulphatides, lipids with amide, ether, and ester-linked fatty acids, polymerizable lipids, and combinations thereof.
- the liposomes may be synthesized in the absence or presence of incorporated glycolipid, complex carbohydrate, protein or synthetic polymer, using conventional procedures.
- the surface of a liposome may also be modified with a polymer, such as, for example, with polyethylene glycol (PEG), using procedures readily apparent to those skilled in the art.
- PEG polyethylene glycol
- Any species of lipid may be used, with the sole proviso that the lipid or combination of lipids and associated materials incorporated within the lipid matrix should form a bilayer phase under physiologically relevant conditions.
- the composition of the liposomes may be altered to modulate the biodistribution and clearance properties of the resulting liposomes.
- the membrane bilayers in these structures typically encapsulate an aqueous volume, and form a permeability barrier between the encapsulated volume and the exterior solution.
- Lipids dispersed in aqueous solution spontaneously form bilayers with the hydrocarbon tails directed inward and the polar headgroups outward to interact with water.
- Simple agitation of the mixture usually produces multilamellar vesicles (MLVs), structures with many bilayers in an onion-like form having diameters of 1 -10 .mu.m (1000-10,000 nm). Sonication of these structures, or other methods known in the art, leads to formation of unilamellar vesicles (UVs) having an average diameter of about 30-300 nm.
- MUVs multilamellar vesicles
- the range of 50 to 200 nm is considered to be optimal from the standpoint of, e.g., maximal circulation time in vivo.
- the actual equilibrium diameter is largely determined by the nature of the phospholipid used and the extent of incorporation of other lipids such as cholesterol.
- Standard methods for the formation of liposomes are known in the art, for example, methods for the commercial production of liposomes are described in U.S. Pat. No. 4,753,788, and U.S. Pat. No. 4,935,171 .
- Polymerized liposomes are self-assembled aggregates of lipid molecules, and are described in U.S. Pat. Nos. 5,512,294, 6,132,764, and U.S. Pat. Application 20020071843.
- the hydrophobic tail groups of polymerizable lipids are derivatized with polymerizable groups, such as diacetylene groups, which irreversibly cross-link, or polymerize, when exposed to ultraviolet light or other radical, anionic or cationic, initiating species, while maintaining the distribution of functional groups at the surface of the liposome.
- the resulting polymerized liposome particle is stabilized against fusion with cell membranes or other liposomes and stabilized towards enzymatic degradation.
- polymerized liposomes can be controlled by extrusion or other methods known to those skilled in the art.
- Polymerized liposomes may be comprised of polymerizable lipids, but may also comprise saturated and non-alkyne, unsaturated lipids.
- the polymerized liposomes can be a mixture of lipids, which provide different functional groups on the hydrophilic exposed surface.
- some hydrophilic head groups can have functional surface groups, for example, biotin, amines, cyano, carboxylic acids, isothiocyanates, thiols, disulfides, oc-halocarbonyl compounds, ⁇ , ⁇ -unsaturated carbonyl compounds and alkyl hydrazines. These groups can be used for attachment of nucleic acid sequences.
- intermedin or adrenomedullin or derivatives therefrom may be synthesized and stored as a solid lyophilized powder which is reconstituted into a pharmaceutically acceptable liquid immediately prior to use.
- Such formulations are usually preferred because it is recognized by those skilled in the art that lyophilized preparations generally maintain pharmaceutical activity better over time than their liquid counterparts.
- intermedin or adrenomedullin and their analogs could be applied topically on the skin as well as administered as aerosal sprays.
- the peptides may be formulated as a liquid, e.g. comprising a buffer at a concentration of from about 1 mM to about 50 mM that functions to maintain the pH, wherein the anion of said buffer may be selected from the group consisting of acetate, phosphate, carbonate, succinate, citrate, borate, tartrate, fumarate and lactate; and an alcohol which may be selected from the group consisting of mannitol, sorbitol, ribotol, arabitol, xylitol, inositol, galactitol, methanol, ethanol and glycerol.
- a buffer at a concentration of from about 1 mM to about 50 mM that functions to maintain the pH
- the anion of said buffer may be selected from the group consisting of acetate, phosphate, carbonate, succinate, citrate, borate, tartrate, fumarate and lactate
- an alcohol which may be selected from the group consisting of mann
- additives may include amino acids such as methionine, arginine, lysine, glutamic acid, cysteine, glutathione, and the like, where amino acids are generally present in concentrations ranging from about 1 mM to about 100 mM.
- amino acids such as methionine, arginine, lysine, glutamic acid, cysteine, glutathione, and the like, where amino acids are generally present in concentrations ranging from about 1 mM to about 100 mM.
- Various sugars are optionally included in the formulations, including, for example, glucose, sucrose, lactose, fructose, trehalose, mannose, and the like. Additive sugars are generally present in concentrations ranging from about 1 % to about 10%.
- rats Following attachment of the pressure transducer, rats were left undisturbed for 10 min before base-line measurements that spanned a 15-20 minute interval. Following base-line measurements, rats were injected intraperitoneal ⁇ with varying doses of peptides, or saline with 10% DMSO. Blood pressure and heart rate were monitored for 20-40 min at 30-s intervals. Changes in blood pressure were calculated as the average of measurements performed within a given time interval. The basal blood pressure of control animals are comparable to those treated with the intermedin peptide.
- adrenomedullin analog in vivo.
- the adrenomedullin peptides were dissolved in saline solution with 10-20% DMSO at 10 micromoles/liter, Before injection, aliquots of peptides were dissolved in PBS to a injection final volume of 200 ⁇ .
- Blood pressure measurements were made in conscious SHR rats (9-16 weeks of age) pre- adapted to the measurement procedure. Indirect systolic pressure was determined by a programmable non-invasive blood pressure system using the tail-cuff method (Kent Scientific Corporation). Following attachment of the pressure transducer, rats were left undisturbed for 10 min before base-line measurements that spanned a 10-15 minute interval.
- rats were injected intraperitoneal ⁇ with varying doses of peptides, or saline with 10% DMSO. Blood pressure and heart rate were monitored for 20-40 min at 20-s intervals. Changes in blood pressure were calculated as the average of measurements performed within a given time interval.
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CN201280016897.6A CN103458916B (en) | 2011-04-07 | 2012-04-05 | Long-acting peptide analogues |
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WO2015141819A1 (en) * | 2014-03-20 | 2015-09-24 | 国立大学法人宮崎大学 | Long-acting adrenomedullin derivative |
WO2016046301A1 (en) | 2014-09-26 | 2016-03-31 | Bayer Pharma Aktiengesellschaft | Stabilized adrenomedullin derivatives and use thereof |
US9694051B2 (en) | 2011-04-07 | 2017-07-04 | The Board Of Trustees Of The Leland Stanford Junior University | Long-acting peptide analogs |
WO2017139154A1 (en) * | 2016-02-09 | 2017-08-17 | Adepthera Llc | Dosing and use of long-acting clr/ramp agonists |
KR20180052642A (en) | 2015-09-18 | 2018-05-18 | 고쿠리츠 다이가쿠 호징 미야자키 다이가쿠 | Long-acting adrenomedullin derivative |
CN108409834A (en) * | 2018-03-23 | 2018-08-17 | 中国药科大学 | A kind of oligopeptides and its derivative and application |
CN108484727A (en) * | 2018-03-23 | 2018-09-04 | 中国药科大学 | A kind of oligopeptides and its derivative and application |
WO2018181638A1 (en) | 2017-03-29 | 2018-10-04 | 国立大学法人宮崎大学 | Long-acting adrenomedullin derivative |
WO2019005623A1 (en) * | 2017-06-30 | 2019-01-03 | Adepthera Llc | Peptide analogs |
US20190010203A1 (en) * | 2016-01-04 | 2019-01-10 | Adepthera Llc | Peptide analogs |
WO2020254197A1 (en) | 2019-06-18 | 2020-12-24 | Bayer Aktiengesellschaft | Adrenomedullin-analogues for long-term stabilization and their use |
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WO2016183479A1 (en) | 2015-05-13 | 2016-11-17 | The Board Of Regents Of The University Of Oklahoma | Variants of adrenomedullin and calcitonin gene-related peptide and methods of use |
JP6781974B2 (en) * | 2016-03-31 | 2020-11-11 | 国立大学法人 宮崎大学 | Method for manufacturing adrenomedullin lyophilized preparation |
CA3075252C (en) * | 2017-09-27 | 2020-12-08 | Novel Pharma Inc. | Long-acting palmitic acid-conjugated gnrh derivatives and pharmaceutical compositions containing same |
US20190287217A1 (en) * | 2018-03-13 | 2019-09-19 | Microsoft Technology Licensing, Llc | Machine learning system for reduced network bandwidth transmission of content |
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- 2012-04-05 BR BR112013024784A patent/BR112013024784A2/en not_active Application Discontinuation
- 2012-04-05 US US14/110,098 patent/US9694051B2/en active Active
- 2012-04-05 CN CN201280016897.6A patent/CN103458916B/en active Active
- 2012-04-05 KR KR1020137029474A patent/KR20140027232A/en not_active Application Discontinuation
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Also Published As
Publication number | Publication date |
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AU2017213562A1 (en) | 2017-08-31 |
EP2696884A2 (en) | 2014-02-19 |
US10058592B2 (en) | 2018-08-28 |
JP2017082000A (en) | 2017-05-18 |
AU2012240144A1 (en) | 2013-10-03 |
KR20140027232A (en) | 2014-03-06 |
AU2012240144B2 (en) | 2017-05-25 |
US20140155329A1 (en) | 2014-06-05 |
RU2664859C2 (en) | 2018-08-23 |
JP6143740B2 (en) | 2017-06-07 |
TWI561242B (en) | 2016-12-11 |
JP6522020B2 (en) | 2019-05-29 |
US9694051B2 (en) | 2017-07-04 |
TW201717996A (en) | 2017-06-01 |
CN103458916B (en) | 2016-08-10 |
US20190183978A1 (en) | 2019-06-20 |
EP2696884A4 (en) | 2014-12-24 |
BR112013024784A2 (en) | 2018-09-25 |
RU2013149397A (en) | 2015-05-20 |
JP2014511862A (en) | 2014-05-19 |
CN103458916A (en) | 2013-12-18 |
US20170014485A1 (en) | 2017-01-19 |
WO2012138867A3 (en) | 2012-12-13 |
EP2696884B1 (en) | 2019-04-03 |
TW201302218A (en) | 2013-01-16 |
TWI635868B (en) | 2018-09-21 |
US11666633B2 (en) | 2023-06-06 |
CA2830372A1 (en) | 2012-10-11 |
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