WO2007051923A2 - Acides polyglutamiques fonctionnalises par des derives de l'histidine et des groupements hydrophobes et leurs applications notamment therapeutiques - Google Patents
Acides polyglutamiques fonctionnalises par des derives de l'histidine et des groupements hydrophobes et leurs applications notamment therapeutiques Download PDFInfo
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- WO2007051923A2 WO2007051923A2 PCT/FR2006/002443 FR2006002443W WO2007051923A2 WO 2007051923 A2 WO2007051923 A2 WO 2007051923A2 FR 2006002443 W FR2006002443 W FR 2006002443W WO 2007051923 A2 WO2007051923 A2 WO 2007051923A2
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- polyamino acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/08—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from amino-carboxylic acids
- C08G69/10—Alpha-amino-carboxylic acids
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
- A61K8/88—Polyamides
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q19/00—Preparations for care of the skin
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/001—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof by chemical synthesis
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
- A61K2800/57—Compounds covalently linked to a(n inert) carrier molecule, e.g. conjugates, pro-fragrances
Definitions
- the present invention relates to novel biodegradable materials based on copolyamino acids, useful in particular for the vectorization of active principle (s) (PA).
- PA active principle
- the invention also relates to novel pharmaceutical, cosmetic, dietetic or phytosanitary compositions based on these modified polyamino acids. These compositions may be of the type of those allowing the vectorization of AP and are preferably in the form of emulsions, micelles, particles, gels, implants or films.
- the PAs considered are, advantageously, biologically active compounds that can be administered to an animal or human organism orally, parenterally, nasally, vaginally, ocularly, subcutaneously, intravenously, intramuscularly, intradermally, intraperitoneally, intracerebrally, orally, etc.
- PAs more particularly, but not exclusively, concerned by the invention are proteins, glycoproteins, peptides, polysaccharides, lipopolysaccharides, oligo or polynucleotides, and organic molecules. But it can also be cosmetic products or phytosanitary products, such as herbicides, insecticides, fungicides, etc.
- polymers of the polylactic, polylactic-glycolic, polyoxyethylene-oxypropylene, polyamino acid or polysaccharide type are raw materials for manufacturing, for example, mass implants, microparticles, nanoparticles, vesicles, micelles or gels.
- these polymers must be suitable for the manufacture of such systems, they must also be biocompatible, non-toxic, non-immunogenic, economical and they must be easily removed from the body. and / or be biodegradable. On this last aspect, it is moreover essential that the biodegradation in the organism generates non-toxic products.
- US-B-4,652,441 discloses polylactide microcapsules encapsulating the hormone LH-RH. These microcapsules are produced by preparing a water-in-oil-in-water emulsion and comprise an aqueous inner layer containing the hormone, a substance (gelatin) fixing the same, an oily layer of polylactide, and an aqueous outer layer. (polyvinyl alcohol). The release of the AP can be done over a period of more than two weeks after subcutaneous injection.
- compositions based on amphiphilic poly (oxyethylene) -poly (oxypropylene) micelles for the vectorization of anticancer drugs such as adriamycin.
- US Pat. No. 4,888,398 describes polymers based on polyglutamate or polyaspartate, and optionally polyleucine, with pendent groups of alkyloxycarbonylmethyl type, randomly placed on the polyamino acid chain.
- These polyamino acids, grafted with side groups e.g. methoxycarbonylmethyl, can be used in the form of biodegradable implants containing a sustained release PA.
- US Pat. No. 5,904,936 describes nanoparticles obtained from a polyleucine-polyglutamate block polymer capable of forming stable colloidal suspensions capable of associating spontaneously with biologically active proteins without denaturing them. These can then be released in vivo in a controlled manner over a long period.
- the patent application WO-A-99/61512 describes polylysines and polyornithines functionalized with a hydrophobic group (palmitic acid connected to polylysine or ornithine) and a hydrophilic group (polyoxyethylene).
- These polymers for example polylysine grafted with polyoxyethylene and palmitoyl chains form in the presence of cholesterol, vesicles capable of encapsulating doxorubicin or I 1 DNA.
- These polymers based on polylysines are cationic in a physiological medium.
- US-B-6,630,171 of the Applicant describes block polymers or random poly (sodium glutamate) -poly (methyl, ethyl, hexadecyl or dodecyl glutamate), capable of forming stable colloidal suspensions and capable of associating spontaneously with biologically active proteins without denaturing them. These can then be released in vivo in a controlled manner over a long period.
- These linear amphiphilic copolyamino acids are modified by the presence of a hydrophobic alkyl side chain. These alkyl groups are grafted covalently on the polymer via an ester function.
- These polymers are anionic in a physiological medium.
- the application WO-A-2004/013206 describes anionic polyamino acids having hydrophobic groups and characterized in that these groups are connected to the polymer via a ball joint containing two amide functions, and more specifically via a lysine-type spacer. or ornithine.
- the application WO-A-2004/060968 describes polyamino acids functionalized with at least one oligoamino acid group based on leucine and / or isoleucine and / or valine and / or phenylalanine.
- the invention relates to biodegradable polyamino acids that can be converted into nano- or micro-colloidal vector particles capable of reversibly associating with active principles.
- Another essential objective of the present invention is that these polymers are capable of being used for the AP vectorization and make it possible to optimally satisfy all the specifications of the specifications, namely in particular: o capacity:
- polyamino acids comprising glutamic units, characterized in that at least a part of these units carry a derivative of Phistidine and in that at least part of these units carry a hydrophobic group (GH) pendant, the histidine derivatives and GH respectively identical or different from each other.
- GH hydrophobic group
- Each polyglutamate according to the invention is therefore functionalized by a multiplicity of derivatives of histidine and hydrophobic groups (GH), pendent and identical or different from each other.
- GH hydrophobic groups
- the term “multiplicity” means that the polyglutamate is functionalized by:
- the glutamic polyacid has, in addition to the pendant GH, GH attached to at least one end of the copolymer chains.
- each unit of said part carries a Phistidine derivative, the Phistidine derivatives being identical or different from each other, and for at least one parts of the glutamic units carrying a hydrophobic group (GH) during, each unit of said part is carrying a hydrophobic group (GH) pendant GH groups being the same or different from each other.
- the histidine derivatives are pendent with respect to the glutamic units.
- carrier means that the group carried is pendant, that is to say that said group is a side group with respect to the glutamic units and is a substituent of the carbonyl functional group. ⁇ of the glutamic unit that carries it.
- the polyglutamate comprises on average at least 3 hydrophobic groups (GH) per copolymer chain.
- Polyglutamate also carries Phistidine derivatives. These groups are preferably bonded to the copolymer via an amide bond.
- association or “associating” used to describe the relationships between one or more active ingredients and the modified polygrutamates, mean, in particular, that the active ingredient (s) are linked to the polyglutanate (s), in particular by a hydrophobic interaction, and / or are encapsulated by the polyglutamate (s).
- the polyamino acids according to the invention are, for example, homopolymers of alpha-L-glutamate or of alpha-L-glutamic acid.
- histidine derivatives that can be used to functionalize the glutamate units are identical or different from each other and correspond to an ethyl substituted in position 1 by an amine and in position 2 by an imidazole ring. Other substituents may be present at these two positions. These derivatives can be for example: histidine esters (such as methyl ester and ethyl ester), Phistidinol and histamine. These derivatives may also be, for example, histidinamide, the N-monomethyl derivative of histidinamide and the N, N'-dimethyl derivative of histidinamide.
- the polyamino acids of the invention comprise on average at least 3 hydrophobic groups (GH) per polymer chain.
- At least one of the hydrophobic groups GH is included in a hydrophobic graft comprising at least one spacer (or "spacer") balloon (or pattern) for connecting the hydrophobic group GH to a polyglutamate chain (for example a main chain - skeleton-polyglutamate).
- This patella may comprise, e.g., at least one direct covalent bond and / or at least one amide bond and / or at least one ester bond.
- the patella may be of the type belonging to the group comprising in particular: the "amino acid" units different from the constituent monomeric unit of the polyglutamate, the aminoalcohol derivatives, the polyamine derivatives (for example the diamines), the derivatives of polyols (for example diols) and derivatives of hydroxy acids.
- the grafting of GH on the polyglutamate chain may involve the use of precursors of GH, able to bind to the polyglutamate chain.
- the precursors of GH are, in practice and without being limited to, selected from the group comprising alcohols and amines, these compounds being easily functionalized by those skilled in the art.
- the grafting of GH is explained in more detail below in the description of the process for obtaining modified polyamino acids according to the invention.
- the hydrophobic group GH of the hydrophobic graft comprises from 8 to 30 carbon atoms.
- hydrophobic groups GH are advantageously and judiciously selected from the group comprising: Linear or branched C8 to C30 alkyls which may optionally comprise at least one unsaturation and / or at least one heteroatom,
- C8 to C30 alkylaryls or arylalkyls optionally containing at least one unsaturation and / or at least one heteroatom; and C8 to C30 (poly) cyclic compounds possibly comprising at least one unsaturation and / or at least one heteroatom.
- the GH-forming patellae of the hydrophobic grafts may be di-, tri- or tetravalent (or even pentavalent and more).
- the hydrophobic graft comprises a single GH group
- a trivalent patella gives the hydrophobic graft a bifid character, that is to say that the graft has two "legs" GH.
- a trivalent patella mention may be made, inter alia, of "amino acid” units, for example "glutamic acid” or polyol residues, for example glycerol.
- two advantageous but non-limiting examples of hydrophobic grafts comprising bifid GHs are dialkyl glycerol and dialkyl glutamate.
- hydrophobic groups GH can be, for example, derived from groups chosen from the group comprising:
- Poctanol dodecanol, tetradecanol, hexadecanol, octadecanol, oleyl alcohol, tocopherol or cholesterol.
- the backbone of the polyglutamate according to the present invention comprises alpha-L-glutamate and / or alpha-L-glutamic acid units.
- polyglutamates according to the invention correspond to one of the following general formulas (I):
- a 1 is independently:
- NHR group in which R represents an H, a C 2 to C 10 linear or branched C 3 to C 10 alkyl or a benzyl, a terminal amino acid unit linked by nitrogen and whose acid function (s) is optionally modified by an amine or an alcohol corresponding to the NHR and OR definitions respectively.
- B is a divalent, trivalent or tetravalent linking group, preferably selected from the following radicals:
- 1 D represents an H, a linear acyl group C 2 to C 10 or branched C 3 to C
- hydrophobic groups GH each independently represent a radical selected from:
- the linear or branched C8 to C30 alkyls which may optionally comprise at least one unsaturation and / or at least one heteroatom (preferably O and / or N and / or S), or C 8 -C 30 alkylaryls or arylalkyls which may optionally comprise at least one unsaturation and / or at least one heteroatom (preferably O and / or N and / or S), or
- C 8 to C 30 (poly) cyclic compounds may optionally comprise at least one unsaturation and / or at least one heteroatom (preferably O and / or N and / or S);
- R1 represents the amine-bonded amine ethanol, a radical OX, in which X represents an H or a cationic entity, preferably selected from the group comprising: the metal cations advantageously chosen from the subgroup comprising: sodium, potassium, calcium, magnesium; organic cations advantageously chosen from the subgroup comprising:
- cations based on amino acid (s) advantageously chosen from the class comprising cations based on lysine or arginine,
- cationic polyamino acids advantageously chosen from the subgroup comprising polylysine or oligolysine;
- R2 represents an alkyl ester, preferably an ethyl ester, a BGH ester, a CH 2 OH group (histidinol), H (histamine), a C (O) NH 2 (histidinamide) group, C (O) NHCH 3 or C (O) N (CH 3 ) 2 .
- (m) / (m + p + q) is defined as the molar grafting rate of the hydrophobic groups GH and varies from 1 to 50 mol% provided that each copolymer chain has on average at least 3 hydrophobic grafts;
- p) / (m + p + q) is defined as the molar grafting rate of the histidine groups and ranges from 1 to 99 mol%.
- - (m + p + q) varies from 10 to 1000, preferably from 30 to 500;
- “(q) / (m + p + q) varies from 0 to 98 mol%.
- the hydrophobic groups GH are arranged randomly. It is also preferable that the molar grafting rate of the polyglutamates according to the invention in the hydrophobic unit is between 2 and 100%, and preferably between 5 and 50%, provided that each polymer chain has on average at least 3 hydrophobic grafts.
- the ratio (p) / (m + p + q) of the polyglutamates according to the invention means that they may contain from 1 to about 99 mol% of groups containing an imidazole ring.
- the polyamino acids as described above are capable of precipitating at physiological pH.
- the ratio (q) / (m + p + q) of the polyglutamates according to the invention means that they may contain from 0 to about 98 mol% of carboxylic, carboxylate or hydroxyethylglutamine functions.
- the polymers according to the invention have a molar mass which is between 2,000 and 200,000 g / mol, and preferably between 5,000 and 100,000 g / mol.
- the polyglutamates according to the invention may carry at least one graft of the polyalkylene (preferably ethylene) glycol type bonded to a glutamate unit.
- the polyglutamates of the invention are likely to be used in several ways depending on the nature of the hydrophobic groups and the degree of polymerization of the polyglutamate.
- Methods for shaping a polymer for the encapsulation of an active ingredient in the various forms contemplated by the invention are known to those skilled in the art. For more details, we can refer, for example to these few particularly relevant references:
- polyglutamates modified with histidine derivatives are also extremely interesting because they disperse in water at a pH of less than 5 (for example in the presence of acid) to give colloidal solutions or suspensions and they precipitate. at physiological pH (7.4) either by addition of a base or by dispersion in a neutral pH solution. Precipitation is therefore likely to occur at the injection site during a subcutaneous injection.
- these polyglutamates in the form of particles or not, can encapsulate or easily combine active ingredients such as proteins, peptides or small molecules.
- the preferred shaping is that described in US-B-6,630,171 of the applicant and which consists in dispersing the copolymer in water and incubating the solution in the presence of an active ingredient (PA).
- This colloidal solution of vectorization particles consisting of the polyglutamates according to the invention can then be filtered under 0.2 microns and then directly injected into a patient.
- the copolymers of the invention in neutral or ionized form, are more generally usable alone or in a liquid, solid or gel composition and in a medium aqueous or organic.
- the modified polyglutamate of carboxylic residual functions are either neutral (COOH form) or ionized (anion COO "), depending on pH and composition.
- the against-cation may be a metal cation such as sodium, calcium or magnesium, or an organic cation such as triethanolamine, tris (hydroxymethyl) aminomethane or a polyamine such as polyethyleneimine.
- the imidazole nucleus of the histidine derivative is either neutral (CsH 3 N 2 ) or cationic (C 3 H 4 N 2 + ) depending on the pH and the composition.
- the copolymers of the invention are for example obtained by methods known to those skilled in the art.
- N-carboxy-amino acid anhydrides NCA
- polymers that can be used according to the invention, for example of the poly (alpha-L-glutamic), poly (alpha-D-glutamic), poly (alpha-D, L-glutamate) and poly (gamma-L) type can be used.
- -glutamic) of variable masses are commercially available.
- the copolymers of the invention are synthesized according to 2 routes.
- the histidine derivative eg, ethyl histidine
- the B-GH moiety eg, dodecylamine
- This reaction can be carried out in a solvent such as DMF, DMSO or NMP according to the following scheme.
- R1 is the amine-bound amino ethanol
- the latter is introduced during the synthesis together with the histidine derivative.
- the poly (L-glutamic acid) can be synthesized according to the route described in the patent application FR-A-2 801 226.
- the HB-GH group is linked via an ester function, it is easier to first graft the B-GH group by a conventional coupling reaction using a carbodiimide before grafting the histidine derivative.
- R1 is the amine-bound amino ethanol
- the latter is introduced during the synthesis together with the histidine derivative.
- the polymerization chemistry and coupling reactions of the groups are conventional and well known to those skilled in the art (see for example the patents or patent applications of the applicant mentioned above).
- the degree of polymerization is defined by the molar ratio of the initiator to that of the monomer.
- the coupling of the hydrophobic graft to GH with an acid function of the polymer is easily achieved by reaction of the polyamino acid in the presence of a carbodiimide as coupling agent and optionally a catalyst such as 4-dimethylaminopyridine and in a suitable solvent such as dimethylformamide (DMF), N-methyl pyrrolidone (NMP) or dimethylsulfoxide (DMSO).
- a carbodiimide is, for example, dicyclohexylcarbodiimide or diisopropylcarbodiimide.
- Coupling reagents such as chloroformates can also be used for the formation of amide linkages (see, for example, Bodanszky's "Principles of Peptide Synthesis" Springer Verlag
- the degree of grafting is chemically controlled by the stoichiometry of the constituents and reactants or the reaction time.
- Hydrophobic grafts functionalized with an amino acid other than that of the polymer are obtained by conventional peptide coupling or by direct condensation by acid catalysis.
- the invention relates to a pharmaceutical, cosmetic, dietetic or phytosanitary composition
- a pharmaceutical, cosmetic, dietetic or phytosanitary composition comprising at least one polyglutamate as defined above and optionally at least one active ingredient, which may be therapeutic, cosmetic, dietetic or phytosanitary.
- the active principle is associated with the (x) polyamino acid (s) modified with a histidine derivative by one or more bonds other than one (or that) bond (s) covalent chemical (s).
- a colloidal suspension of PV particles optionally prepared extemporaneously by the dispersion of dry PV in a suitable solvent, such as water.
- the active ingredient is a protein, a glycoprotein, a protein linked to one or more polyalkylene glycol chains (preferably polyethylene glycol (PEG): "protein-PEGylated”), a polysaccharide, a liposaccharide, an oligonucleotide, a polynucleotide or a peptide.
- PEG polyethylene glycol
- the active principle is a "small” hydrophobic, hydrophilic or amphiphilic organic molecule.
- a "small” molecule is especially a small nonprotein molecule.
- PA that may be associated with the polyamino acids according to the invention, whether or not in the form of (nano or micro) particles, mention may be made of: o proteins such as insulin, interferons, hormones growth, interleukins, erythropoietin or cytokines; peptides such as leuprolide or cyclosporine; o small molecules such as those belonging to the family of anthracyclines, taxoids or camptothecins; o and their mixtures.
- proteins such as insulin, interferons, hormones growth, interleukins, erythropoietin or cytokines
- peptides such as leuprolide or cyclosporine
- small molecules such as those belonging to the family of anthracyclines, taxoids or camptothecins
- o and their mixtures o proteins such as insulin, interferons, hormones growth, interleukins, erythropoietin or cytokines
- the composition of the invention is in the form of a gel, a solution, a suspension, an emulsion, micelles, nanoparticles, microparticles, an implant, a d a powder or a film.
- the composition whether loaded or not with active ingredient (s), is a stable colloidal suspension of nanoparticles and / or microparticles and / or polyamino acid micelles, in an aqueous phase.
- the composition of the invention is in the form of a solution in a biocompatible solvent and can be injected subcutaneously, intramuscularly or into a tumor.
- composition according to the invention since it is pharmaceutical, can be administered orally, parenterally, nasally, vaginally, ocularly, subcutaneously, intravenously, intramuscularly, intradermally, intraperitoneally, intracerebrally or buccally.
- composition is in the form of a solution in a solvent or a mixture of biocompatible solvents that can be injected subcutaneously, intramuscularly or into a tumor.
- the composition may optionally contain an excipient for adjusting the pH and / or the posmolarity and / or to improve the stability (antioxidants) and / or as anti-microbial agent.
- excipients are well known to those skilled in the art (see Injectable Drug Development, P.K. Gupta et al., Interpharm Press, Denver, Colorado 1999).
- the composition according to the invention is formulated so that it is capable of forming a deposit on the injection site.
- the deposition may, for example, be at least partly caused by a physiological protein present in vivo.
- composition according to the invention is characterized in that it comprises polyamino acids of formula I as defined above.
- this composition is capable of precipitating at physiological pH.
- the invention also relates to compositions which comprise polyamino acids according to the invention and active principles which may be used for the preparation:
- Medicaments in particular for oral, nasal, vaginal, ocular, subcutaneous, intravenous, intramuscular, intradermal, intraperitoneal or intracerebral administration, the active principles of these medicinal products being, in particular, proteins, glycoproteins, proteins bound to one or more polyalkylene glycol chains (for example PolyEthyleneGlycol (PEG), referred to as "PEGylated” proteins ⁇ , peptides, polysaccharides, liposaccharides, oligonucleotides, polynucleotides and hydrophobic, hydrophilic or amphiphilic organic small molecules;
- PEG PolyEthyleneGlycol
- This method being characterized in that it consists essentially in implementing at least one homopolyamino acid as defined above and / or the composition described above.
- the invention also relates to a method of therapeutic treatment consisting essentially of administering the composition as described herein, orally, parenterally, nasally, vaginally, ocularly, subcutaneously, intravenously, intramuscularly, intradermally, intraperitoneally, intracerebrally or oral.
- this method of therapeutic treatment essentially consists of putting the composition as described above in the form of a solution in a biocompatible solvent and then injecting it subcutaneously, intramuscularly or into a tumor, preferably so that it forms a deposit on the injection site.
- the histidine solution is then added to that of polymer.
- the reaction mixture is stirred for 5 minutes at 0 ° C. and then for 1 hour, allowing the temperature to rise to ambient temperature.
- the reaction medium is first quenched by adding 10 ml of 1N HCl and then diluted in 2.8 L of water at pH 2-3. The final pH is adjusted to 3.
- the solution is then concentrated to 600 ml on a diafiltration rack and then washed against 10 volumes of salt water (0.9% NaCl) and 5 volumes of water.
- the polymer solution is then concentrated to 330 ml with a polymer concentration of 20 mg / ml, or 50% yield.
- 3.5 g of a poly (glutamic acid) of DP 220 grafted at 5% randomly with racemic alpha-tocopherol are solubilized by heating at 80 ° C. in 50 ml of DMF.
- To this cooled solution at 0 ° C. are added 3.35 g of isobutyl chloroformate and then 2.48 g of N-methyl morpholine.
- the reaction medium is stirred for 15 minutes while maintaining the temperature at 0 ° C.
- 8.6 g of the histamine dihydrochloride are solubilized in 215 ml of DMF. 13.0 ml of triethylamine are then added and the solution obtained is heated at 40 ° C.
- the histamine solution is then added to that of polymer.
- the reaction mixture is stirred for 5 minutes at 0 ° C. and then for 1 hour, allowing the temperature to rise to ambient temperature.
- the reaction medium is diluted in 800 ml of water at pH 2-3. The final pH is adjusted to 3.
- the solution is then concentrated to 500 ml on a diafiltration rack and then washed against 10 volumes of salt water (0.9% NaCl) and 5 volumes of water.
- the polymer solution is then concentrated to 230 ml with a polymer concentration of 13.7 mg / ml, ie 49% yield.
- Comparative compound C1 is the precursor (in its anionic form) of the phistidine derivative-modified polyglutamate, DP 20 polyglutamate grafted at 5% statistically with racemic alpha-tocopherol. This compound is obtained by the method described in application WO-A-03/104303.
- Example 6 precipitation study according to the pH The results demonstrate that the polymers of the invention are soluble at pH below about 6 and precipitate when the pH becomes greater than 6, in contrast to the compound Cl.
- the zeta potential of polymer 1 was measured at two pH at which it is soluble: pH 4 and pH 8 to confirm the cationic nature at acidic and anionic pH above neutral pH.
- the values obtained are +53 m V at pH 4 and -37 m V at pH 8.
- the polymer Cl has a zeta potential of -70 mV at neutral pH.
- Example 8 Stabilization of a therapeutic protein: PhGH
- HGH has an isoelectric point of 5.4 and is, in principle, insoluble at pH 5. However, the formulation is clear. The protein is thus stabilized in solution by the polymer 1.
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Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008537144A JP5292099B2 (ja) | 2005-10-31 | 2006-10-31 | ヒスチジン誘導体および疎水基で官能化されたポリグルタミン酸類、ならびに特に治療目的のためのそれらの使用 |
CN2006800409623A CN101300267B (zh) | 2005-10-31 | 2006-10-31 | 被组氨酸衍生物和疏水基官能化的聚谷氨酸及其应用 |
US12/084,368 US8293255B2 (en) | 2005-10-31 | 2006-10-31 | Polyglutamic acids functionalised by histidine derivatives and hydrophobic groups and the uses thereof, in particular for therapeutic purposes |
EP06831050A EP1945655A2 (fr) | 2005-10-31 | 2006-10-31 | Acides polyglutamiques fonctionnalises par des derives de l'histidine et des groupements hydrophobes et leurs applications notamment therapeutiques |
CA002627746A CA2627746A1 (fr) | 2005-10-31 | 2006-10-31 | Acides polyglutamiques fonctionnalises par des derives de l'histidine et des groupements hydrophobes et leurs applications notamment therapeutiques |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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FR0553302A FR2892725B1 (fr) | 2005-10-31 | 2005-10-31 | Acides polyglutamiques fonctionnalises par des derives de l'histidine et des groupements hydrophobes et leurs applications notamment therapeutiques |
FR0553302 | 2005-10-31 |
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WO2007051923A2 true WO2007051923A2 (fr) | 2007-05-10 |
WO2007051923A3 WO2007051923A3 (fr) | 2007-06-28 |
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PCT/FR2006/002443 WO2007051923A2 (fr) | 2005-10-31 | 2006-10-31 | Acides polyglutamiques fonctionnalises par des derives de l'histidine et des groupements hydrophobes et leurs applications notamment therapeutiques |
Country Status (7)
Country | Link |
---|---|
US (1) | US8293255B2 (fr) |
EP (1) | EP1945655A2 (fr) |
JP (1) | JP5292099B2 (fr) |
CN (1) | CN101300267B (fr) |
CA (1) | CA2627746A1 (fr) |
FR (1) | FR2892725B1 (fr) |
WO (1) | WO2007051923A2 (fr) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2915684A1 (fr) * | 2007-05-03 | 2008-11-07 | Flamel Technologies Sa | Particules a base de polyelectrolytes et de principe actif a liberation modifiee et formulations pharmaceutiques contenant ces particules |
FR2915748A1 (fr) * | 2007-05-03 | 2008-11-07 | Flamel Technologies Sa | Acides polyglutamiques fonctionnalises par des groupes cationiques et des groupements hydrophobes et leurs applications, notamment therapeutiques |
US7683024B2 (en) | 2002-06-07 | 2010-03-23 | Flamel Technologies | Polyaminoacids functionalized by alpha tocopherol and uses thereof, particular for therapeutic applications |
JP2012514026A (ja) * | 2008-12-31 | 2012-06-21 | フラメル テクノロジーズ | 水に対する溶解度の低い活性薬剤を含む組成物 |
US8236353B2 (en) | 2007-05-03 | 2012-08-07 | Flamel Technologies | Self-precipitating pharmaceutical formulations for the modified release of an active principle |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JP4655298B1 (ja) | 2010-02-23 | 2011-03-23 | ナノキャリア株式会社 | 短鎖のカチオン性ポリアミノ酸およびその使用 |
CN103893813B (zh) * | 2012-12-28 | 2018-04-17 | 财团法人工业技术研究院 | 高分子组合物与高分子材料 |
CN106749522B (zh) * | 2016-11-23 | 2023-11-14 | 华东理工大学 | 一种含有聚组氨酸的抗癌多肽及其制备与应用 |
CN108623802B (zh) * | 2018-05-08 | 2021-01-08 | 四川大学 | 一种功能性聚氨基酸衍生物及其制备方法和应用 |
EP4308288A1 (fr) * | 2021-03-18 | 2024-01-24 | Agfa-Gevaert Nv | Capsules à base de poly(acide aminé) |
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US4351337A (en) * | 1973-05-17 | 1982-09-28 | Arthur D. Little, Inc. | Biodegradable, implantable drug delivery device, and process for preparing and using the same |
JPS60100516A (ja) * | 1983-11-04 | 1985-06-04 | Takeda Chem Ind Ltd | 徐放型マイクロカプセルの製造法 |
ATE60340T1 (de) * | 1984-10-19 | 1991-02-15 | Battelle Memorial Institute | Durch mikroorganismen abbaubares polypeptid und seine verwendung fuer die fortschreitende abgabe von medikamenten. |
JPH0278698A (ja) * | 1988-09-16 | 1990-03-19 | Mitsubishi Gas Chem Co Inc | 尿素分解素子 |
EP0527778B1 (fr) * | 1990-04-09 | 1996-06-19 | The Upjohn Company | Procede ameliore de purification de proteines de recombinaison et procedes utiles dans ledit procede |
KR940003548U (ko) * | 1992-08-14 | 1994-02-21 | 김형술 | 세탁물 건조기 |
US6153193A (en) * | 1993-04-28 | 2000-11-28 | Supratek Pharma Inc. | Compositions for targeting biological agents |
FR2732218B1 (fr) * | 1995-03-28 | 1997-08-01 | Flamel Tech Sa | Particules a base de polyaminoacide(s) et susceptibles d'etre utilisees comme vecteurs de principe(s) actif(s) et leurs procedes de preparation |
US6344436B1 (en) * | 1996-01-08 | 2002-02-05 | Baylor College Of Medicine | Lipophilic peptides for macromolecule delivery |
GB9811059D0 (en) | 1998-05-23 | 1998-07-22 | Univ Strathclyde | Polyamino acid vesicles |
FR2786098B1 (fr) * | 1998-11-20 | 2003-05-30 | Flamel Tech Sa | Particules a base de polyaminoacide(s) et susceptibles d'etre utilisees comme vecteurs de principe(s) actif(s), suspension colloidale les comprenant et leurs procedes de fabrication |
FR2801226B1 (fr) | 1999-11-23 | 2002-01-25 | Flamel Tech Sa | Suspension colloidale de particules submicroniques de vectorisation de principes actifs et son mode de preparation |
FR2840614B1 (fr) * | 2002-06-07 | 2004-08-27 | Flamel Tech Sa | Polyaminoacides fonctionnalises par de l'alpha-tocopherol et leurs applications notamment therapeutiques |
FR2843117B1 (fr) * | 2002-07-30 | 2004-10-15 | Flamel Tech Sa | Polyaminoacides fonctionnalises par au moins un groupement hydrophobe et leurs applications notamment therapeutiques |
JP4970731B2 (ja) | 2002-12-04 | 2012-07-11 | フラメル・テクノロジー | 少なくとも1つの(オリゴ)アミノ酸基によって官能性をもたせたポリアミノ酸およびこれらの適用、特に医療適用 |
FR2910318B1 (fr) * | 2006-12-20 | 2009-07-03 | Flamel Technologies Sa | Dispersion de polyaminoacides dans une phase lipidique continue. |
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2005
- 2005-10-31 FR FR0553302A patent/FR2892725B1/fr not_active Expired - Fee Related
-
2006
- 2006-10-31 WO PCT/FR2006/002443 patent/WO2007051923A2/fr active Application Filing
- 2006-10-31 CN CN2006800409623A patent/CN101300267B/zh not_active Expired - Fee Related
- 2006-10-31 CA CA002627746A patent/CA2627746A1/fr not_active Abandoned
- 2006-10-31 EP EP06831050A patent/EP1945655A2/fr not_active Withdrawn
- 2006-10-31 US US12/084,368 patent/US8293255B2/en not_active Expired - Fee Related
- 2006-10-31 JP JP2008537144A patent/JP5292099B2/ja not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
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None |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7683024B2 (en) | 2002-06-07 | 2010-03-23 | Flamel Technologies | Polyaminoacids functionalized by alpha tocopherol and uses thereof, particular for therapeutic applications |
FR2915684A1 (fr) * | 2007-05-03 | 2008-11-07 | Flamel Technologies Sa | Particules a base de polyelectrolytes et de principe actif a liberation modifiee et formulations pharmaceutiques contenant ces particules |
FR2915748A1 (fr) * | 2007-05-03 | 2008-11-07 | Flamel Technologies Sa | Acides polyglutamiques fonctionnalises par des groupes cationiques et des groupements hydrophobes et leurs applications, notamment therapeutiques |
WO2008135561A1 (fr) * | 2007-05-03 | 2008-11-13 | Flamel Technologies | Particules a base de polyelectrolytes et de principe actif a liberation modifiee et formulations pharmaceutiques contenant ces particules |
AU2008248602B2 (en) * | 2007-05-03 | 2012-07-26 | Flamel Technologies | Modified-release particles based on polyelectrolytes and on an active principle and pharmaceutical formulations containing these particles |
US8236353B2 (en) | 2007-05-03 | 2012-08-07 | Flamel Technologies | Self-precipitating pharmaceutical formulations for the modified release of an active principle |
JP2012514026A (ja) * | 2008-12-31 | 2012-06-21 | フラメル テクノロジーズ | 水に対する溶解度の低い活性薬剤を含む組成物 |
Also Published As
Publication number | Publication date |
---|---|
US20100034886A1 (en) | 2010-02-11 |
EP1945655A2 (fr) | 2008-07-23 |
US8293255B2 (en) | 2012-10-23 |
JP5292099B2 (ja) | 2013-09-18 |
CN101300267B (zh) | 2013-10-16 |
JP2009519211A (ja) | 2009-05-14 |
FR2892725B1 (fr) | 2011-03-04 |
CN101300267A (zh) | 2008-11-05 |
WO2007051923A3 (fr) | 2007-06-28 |
FR2892725A1 (fr) | 2007-05-04 |
CA2627746A1 (fr) | 2007-05-10 |
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