WO2008074871A1 - Dispersion de polyaminoacides dans une phase lipidique continue - Google Patents
Dispersion de polyaminoacides dans une phase lipidique continue Download PDFInfo
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- WO2008074871A1 WO2008074871A1 PCT/EP2007/064352 EP2007064352W WO2008074871A1 WO 2008074871 A1 WO2008074871 A1 WO 2008074871A1 EP 2007064352 W EP2007064352 W EP 2007064352W WO 2008074871 A1 WO2008074871 A1 WO 2008074871A1
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- 0 *C(*N)C(C(*)(*)N)=O Chemical compound *C(*N)C(C(*)(*)N)=O 0.000 description 1
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- 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
- A61K47/30—Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
- A61K47/36—Polysaccharides; Derivatives thereof, e.g. gums, starch, alginate, dextrin, hyaluronic acid, chitosan, inulin, agar or pectin
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- 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
- A61K47/30—Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
- A61K47/34—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyesters, polyamino acids, polysiloxanes, polyphosphazines, copolymers of polyalkylene glycol or poloxamers
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/10—Dispersions; Emulsions
- A61K9/107—Emulsions ; Emulsion preconcentrates; Micelles
Definitions
- the present application relates to novel pharmaceutical formulations based on aqueous colloidal suspensions or aqueous dispersions, for the sustained release of active principle (s), in particular protein (s) and peptide active principle (s). (s).
- active principle in particular protein (s) and peptide active principle (s).
- the application also relates to the applications, particularly therapeutic applications, of these pharmaceutical formulations.
- active pharmaceutical formulations concern both human and veterinary therapeutics.
- the plasma concentration of therapeutic protein then has a "sawtooth" profile characterized by high concentration peaks and very low concentration minima. Concentration peaks, much higher than the basal concentration in healthy subjects, can have very significant adverse effects because of the high toxicity of therapeutic proteins such as interleukin IL2. In addition, the concentration minima are lower than the concentration required to have a therapeutic effect, resulting in poor therapeutic coverage of the patient and serious long-term side effects.
- Flamel Technologies has proposed a route in which the therapeutic protein is associated with nanoparticles of a copolyamino acid comprising hydrophobic groups and hydrophilic groups.
- US-B-5,904,936 discloses submicronic particles (NPV) of average size between 0.01 and 0.5 ⁇ m and micron particles (MPV) of average size between 0.5 and 20 ⁇ m.
- amphiphilic copolymer of polyamino acids comprising at least two types of amino acids, one being hydrophobic neutral, the other being ionizable. Proteins such as insulin adsorb spontaneously in aqueous solution to these particles.
- the polyamino acid copolymer is, for example, a block copolymer of sodium poly (L-leucine-bL-glutamate).
- This patent describes the aggregation of NPV in MPV by addition to a colloidal suspension of poly-Leu / Glu, monocation salts (ammonium sulfate) or polycationic salts (Fe 2+ , Fe 3+ , Zn 2+ , Ca 2+ , Al 2+ , Al 3+ or Cu 2+ ), acid (HCl), cationic polymers (polylysine).
- monocation salts ammonium sulfate
- polycationic salts Fe 2+ , Fe 3+ , Zn 2+ , Ca 2+ , Al 2+ , Al 3+ or Cu 2+
- acid HCl
- cationic polymers polylysine
- the patent application WO-A-2005/033181 discloses linear, amphiphilic, anionic homopolyamino acids, comprising aspartic residues or glutamic residues, the ends of which carry hydrophobic groups containing from 8 to 30 carbon atoms.
- the hydrophobic modified telechelic homopolyamino acids are, for example, a poly [GluONa] with PheOC18 / C18 ends or a poly [GluONa] with PheOC18 / alpha-tocopherol ends.
- These hydrophobic modified telechelic homopolyamino acids spontaneously form in water a colloidal suspension of nanoparticles, which are capable of easily combining in aqueous suspension at pH 7.4, with at least one active protein (insulin).
- the in vivo release time of the active protein (s) e.g. insulin vectorized by the suspensions according to US-B-5,904,936 & WO-A-2005/033181 would benefit from being increased.
- a first solution is to increase the polymer concentration so as to slow the release of the protein after in vivo injection. Nevertheless, this route faces a sharp increase in the viscosity of the solution that does not allow the injection of this system.
- a second solution consists in dispersing the protein in an injectable lipid phase, immiscible with water, in order to reduce the diffusion of the protein into the subcutaneous medium.
- this route encounters a potential denaturation of the protein in contact with the lipid phase.
- US Pat. No. 6,235,282 B1 describes an emulsion of water-in-oil for injection as an immunogenic adjuvant in vaccine preparations.
- An immunologically active substance or a vaccine antigen is contained in the aqueous phase of the emulsion. This causes difficulties of stability of the active substance in the aqueous phase, as well as risks of denaturation of the active substance at the water-oil interface.
- This patent does not concern the prolonged release of an active ingredient.
- This adjuvant comprises a water-in-oil emulsion.
- the emulsifier is a polymeric emulsifier, more specifically a block copolymer of general formula
- A-COO-B-OOC-A wherein B is a divalent residue of a water-soluble polyalkylene glycol, and A is a residue of a liposoluble complex monocarboxylic acid.
- the viral antigen is in the aqueous phase, which poses the same problems of stability and risk of denaturation of the viral antigen. This request does not concern the prolonged release of an active ingredient.
- the invention is aimed primarily at a sustained-release pharmaceutical composition of at least one active principle.
- the composition comprises at least one active principle in an aqueous phase containing at least one amphiphilic polymer.
- the aqueous phase is in dispersed form in a continuous lipid phase. More specifically, the composition is in the form of a water-in-oil emulsion comprising: a pharmaceutically acceptable lipid continuous phase,
- an aqueous dispersed phase containing at least one amphiphilic polymer and at least one active ingredient not covalently bound to said amphiphilic polymer
- the amphiphilic polymer carries at least one hydrophobic group.
- the amphiphilic polymer is an amphiphilic polyamino acid, optionally carrying at least one hydrophobic group.
- the pharmaceutical composition is in the form of a water-in-oil emulsion which comprises the following components: a pharmaceutically acceptable lipid continuous phase,
- an aqueous dispersed phase containing at least one amphiphilic polyamino acid bearing at least one hydrophobic group and at least one active principle not covalently bonded to said amphiphilic polyamino acid,
- the amphiphilic polymer is a polysaccharide carrying at least one hydrophobic group.
- Such a pharmaceutical composition can be administered by the usual routes, in particular at least one of the following routes: the oral route, the nasal route, the ocular route, the cutaneous route, the vaginal route, the rectal route or the parenteral route.
- Parenteral routes include subcutaneous injection, intramuscular injection, intraperitoneal injection, intradermal injection, intravenous injection, intra-arterial injection, intraspinal injection, injection. intra-articular and intrapleural injection.
- Another aspect of the invention relates to the use of the various amphiphilic polymers described below, in particular polysaccharides and polyamino acids, in the preparation of a pharmaceutical composition in the form of a water-in-oil emulsion. whose aqueous dispersed phase contains at least one of these amphiphilic polymers.
- One variant of the invention consists in using one or more amphiphilic polyamino acids bearing at least one hydrophobic group, in the preparation of such a pharmaceutical composition.
- a physical gel is a system for which the elastic modulus G 'is greater than the loss modulus G "over a frequency range such that the characteristic relaxation time, defined as being the inverse of the point of intersection of the two modules, is greater than or equal to 0.1s and more preferably greater than or equal to 10%
- the term "polyamino acid” covers both natural polyamino acids and synthetic polyamino acids comprising more than 10 amino acid residues. description, when mentioning "the" polyamino acid, it should be understood that it may be a mixture of different polyamino acids used in the pharmaceutical composition.
- the expression "to be a carrier” means that the group, the graft or the carried radical in question is a pendant group.
- said group is a side group with respect to the main chain of the amphiphilic polymer.
- the group is a substituent of the ⁇ carbonyl function of the aspartic residue or ⁇ of the glutamic residue, which carries it.
- the pendant moiety is a substituent of the specific side chain of said amino acid residue.
- the amphiphilic polymer may be a modified polysaccharide, such as the hydrophobic modified pullulans (cholesteryl pullulan, hexadecyl pullulan) which are described in the article by Kuroda et al. (2002) “Hierarchical self-ashes of hydrophobically modi ⁇ ed pullulan in water: gelation by networks of nanoparticles", Langmuir, 18, 3780-3786.
- hydrophobic modified pullulans cholesteryl pullulan, hexadecyl pullulan
- the amphiphilic polysaccharide used is one chosen from hyaluronans, alginates, chitosans, galacturonans, chondroitin sulfate, dextrans, celluloses and / or their functionalized derivatives.
- Such polysaccharides are described in the international patent application published under the number WO 2007/034320.
- these are hyaluronans, alginates, chitosans and dextrans and / or their derivatives functionalized with at least one imidazolyl radical and at least one hydrophobic group.
- a description of this type of polysaccharide and the methods of their synthesis are found in the international patent application published under the number WO 2007/116143, in particular for derivatives of dextrans.
- the amphiphilic polymer used is an amphiphilic polyamino acid. According to a preferred variant, it is an amphiphilic polyamino acid bearing at least one hydrophobic group.
- the polyamino acids used are homopolymers comprising recurring glutamic acid or aspartic acid residues, or copolymers comprising a mixture of these two types of residues. These residues may be in salt form, in which case they are glutamate or aspartate residues. The salts thus formed must be pharmaceutically acceptable.
- Various examples of generally pharmaceutically acceptable counterions are indicated in the following description.
- the glutamic acid or aspartic acid residues, and their salts, may have the D or L configuration.
- a polyamino acid simultaneously comprises residues having the D configuration and residues having the L configuration.
- the recurring residues are linked between them at their alpha or gamma positions for glutamate or glutamic residues, and at their alpha or beta positions for aspartic or aspartate residues.
- the main polyamino acid chain essentially comprises amino acid residues having the L configuration and linked together by alpha bonds (that is to say at their alpha positions).
- the amphiphilic polyamino acid is formed of monomers derived from aspartic acid (aspartic residues) and / or glutamic acid (glutamic residues), at least a portion of these residues carrying scions. having at least one hydrophobic group [GH].
- These polyamino acids are in particular of the type described in PCT patent application WO-A-00/30618.
- the amphiphilic polyamino acid may carry substituents derived from a histidine residue.
- said histidine residue may be linked to a glutamic or aspartic residue via an amide bond.
- amphiphilic polyamino acids carrying hydrophobic groups will now be described [GH].
- the following general formulas are written as a block.
- the amphiphilic polyamino acids corresponding to these formulas can be, in particular, polymers or copolymers, block or random. It is conceivable to combine the various embodiments, for example by choosing an appropriate mixture of the amphiphilic polyamino acids described below, or by combining the various types of grafts within the same amphiphilic polyamino acid.
- the main chain of the polyamino acid is chosen from: a homopolymer of alpha-L-glutamate or alpha-L-glutamic acid; a homopolymer of alpha-L-aspartate or alpha-L-aspartic acid;
- the distribution of the aspartic and / or glutamic units of the main chain of the amphiphilic polyamino acid is such that the polyamino acid thus constituted is either random, or of the block type, or of the multiblock type.
- the distribution of the hydrophobic groups on the main chain of the amphiphilic polyamino acid is such that the polyamino acid thus constituted is either random, or of the block type, or of the multiblock type.
- the general formulas (I), (II), (III), (IV) and (V) set out in the remainder of the description should not be interpreted as representing only block copolymers (or blocks), but also random copolymers or multiblock copolymers.
- the amphiphilic polyamino acid used in the composition according to the invention has a molar mass which is between 2,000 and 100,000 g / mol, and preferably between 5,000 and 40,000 g / mol.
- amphiphilic polyamino acid used in the pharmaceutical composition has the following general formula (I), and its pharmaceutically acceptable salts:
- R 1 represents a hydrogen atom, a C 2 to C 10 linear acyl group, a branched C 3 to C 10 acyl group, a pyroglutamate group or a group -R 4 - [GH 1];
- R 2 represents a group -NHR 5 or a terminal amino acid residue bound by nitrogen whose function (s) acid (s) is optionally modified with an amine -NHR 5 or an alcohol -OR 6 ;
- - R 4 represent independently of each other a direct bond or a spacer group comprising 1 to 4 amino acid residues;
- - R 5 represents a hydrogen atom, a linear alkyl group C1 to ClO, a branched alkyl group C3 to ClO, or a benzyl group;
- R 6 represents a hydrogen atom, a linear alkyl group C1 to ClO, a branched alkyl group C3 to ClO, a benzyl group or a group -R 4 - [GH1];
- a and B represent independently of each other a group -CH 2 - (aspartic residue) or -CH 2 -CH 2 - (glutamic residue);
- the degree of polymerization (n + m) varies from 10 to 1000, preferably from 50 to 300.
- amphiphilic polyamino acid corresponds to one of the following general formulas (II), (III) and (IV), and their pharmaceutically acceptable salts:
- R a represents a linear alkylene group of C2 to C6;
- - R b represents a C2-C6 alkylene group, a C2-C6 dialkoxy group or a C2-C6 diamine group;
- - R 7 represent independently of each other a direct bond, a spacer group comprising from 1 to 4 amino acid residues or a -C (O) -CH 2 -CH 2 - group;
- - R 8 represent a group -NHR 9 or a terminal amino acid residue bound by nitrogen and whose function (s) acid (s) is optionally modified with an amine -NHR 9 or an alcohol -OR 10 respectively;
- - R 9 represents a hydrogen atom, a linear alkyl group C1 to ClO, a branched alkyl group C3 to ClO, or a benzyl group;
- R 10 represents a hydrogen atom, a linear alkyl group C1 to ClO, a branched alkyl group C3 to ClO, a benzyl group or a group -R ⁇ - [GH3]
- R 11 represent independently of each other a direct bond or a spacer group comprising 1 to 4 amino acid residues
- [GH2] and [GH3] independently of one another represent a hydrophobic group; the degrees of polymerization (ml + m2) and m3 vary from 10 to 1000, preferably from 50 to 300.
- amphiphilic amino acid po is in accordance with the following general formula (V), and its pharmaceutically acceptable salts:
- R c represents a group -NHR 15 or a terminal amino acid residue linked by nitrogen and whose function (s) acid (s) is optionally modified with an amine -NHR 5 or an alcohol -OR 16 respectively,
- R d represents a hydrogen atom, a C 2 to C 10 linear acyl group, a C 3 to C 10 branched acyl group or a pyroglutamate group;
- R 12 represent, independently of one another, a divalent, trivalent or tetravalent linking group, preferably chosen from the following groups: -O-, -NH-, -N-C 1 -C 5 alkyl, an amino acid residue, a C2 to C6 diol, a C3 to C6 triol, a C2 to C6 diamine, a C3 to C6 triamine, a C2 to C6 amino alcohol or a C2 to C6 hydroxy acid;
- R 13 represent, independently of one another, an -OH group or an ethanol-amine group linked by the amine fraction;
- R 14 represents an alkyl ester group, a -CH 2 OH group (histidinol), a hydrogen atom (histamine), a -C (O) NH 2 (histidinamide) group, a -C (O) group; NHCH3 or a group -C (O) N (CH 3 ) 2 ,
- R 15 and R 16 represent, independently of one another, a hydrogen atom, a linear C 1 to C 10 alkyl group, a C 3 to C 10 branched alkyl group or a benzyl group,
- [GH4] each independently represent a hydrophobic group chosen from:
- Linear or branched C8 to C30 alkyl groups optionally comprising at least one unsaturation and / or at least one heteroatom,
- alkylaryl groups or arylC8 to C30 alkyl optionally comprising at least one unsaturation and / or at least one heteroatom
- the molar grafting rate in hydrophobic groups [GH] (p) / (p + q + r) varies from 1 to 50 mol%, provided that each copolymer chain has on average at least 3 hydrophobic grafts;
- the molar grafting rate in groups derived from the histidine residue (q) / (p + q + r) varies from 1 to 99 mol%;
- the heteroatoms that can be found in the hydrophobic groups [GH4] are the oxygen, nitrogen or sulfur atoms.
- the derivatives of the histidine residue that can be used to functionalize the glutamate units are identical to or different from each other and can be for example: histidine esters (such as the methyl ester and the ethyl ester), histidinol and histamine. These derivatives may also be, for example, histidinamide, the N-monomethyl derivative of histidinamide and the N, N'-dimethyl derivative of histidinamide.
- at least one of the hydrophobic groups are identical to or different from each other and can be for example: histidine esters (such as the methyl ester and the ethyl ester), histidinol and histamine.
- these derivatives may also be, for example, histidinamide, the N-monomethyl derivative of histidinamide and the N, N'-dimethyl derivative of histidinamide
- GH4 is included in a hydrophobic graft comprising at least one spacer (or "spacer") R 12 for connecting the hydrophobic group [GH4] to a polyglutamate chain (for example a main chain - skeleton) -polyglutamate).
- This patella may comprise, for example 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 residues different from the constituent monomeric unit of the polyglutamate, the derivatives of the aminoalcohols, derivatives of polyamines (for example diamines), derivatives of polyols (for example diols) and derivatives of hydroxy acids.
- the R 12 patches forming hydrophobic groups [GH4] with hydrophobic grafts may be di-, tri- or tetravalent (or even pentavalent and more).
- a divalent R 12 patella the hydrophobic graft comprises a single [GH 4] group
- a trivalent R 12 patella gives the hydrophobic graft a bifid character, that is to say that the hydrophobic graft comprises two groups hydrophobic [GH4].
- trivalent R 12 mention may be made, inter alia, of amino acid residues, for example glutamic acid or polyol residues, for example glycerol.
- two advantageous but non-limiting examples of hydrophobic grafts comprising hydrophobic groups [GH4] are dialkyl glycerol and dialkyl glutamate.
- [GH1], [GH2] and [GH3] of the amphiphilic polyamino acid of general formula (I), (II), (III) or (IV) are chosen from the group comprising octyloxy, dodecyloxy, tetradecyloxy, hexadecyloxy, octadecyloxy radicals; , oleyloxy, tocopheryloxy or cholesteryloxy.
- hydrophobic groups [GH4] of the amphiphilic polyamino acid of general formula (V) are chosen from the group comprising octyl, dodecyl, tetradecyl, hexadecyl, octadecyl, oleyl, tocopheryl or cholesteryl radicals.
- R 4 (formula I), R 7 (formulas II and IV) and R 11 (formulas III and IV) represent a direct bond
- R 12 (formula V) represents a group O-.
- hydrophobic groups [GH1], [GH2], [GH3] and [GH4] of the amphiphilic polyamino acid (I), (II), (III), (IV ) or (V) may also each independently represent a monovalent group of the following general formula (VI):
- R 17 represent, independently of one another, a methyl, isopropyl, isobutyl, secbutyl or benzyl group
- R 18 represent independently of each other a hydrophobic group having from 6 to 30 carbon atoms
- hydrophobic groups R 18 are chosen independently of one another from:
- a linear or branched alkoxy group containing from 6 to 30 carbon atoms and possibly comprising at least one unsaturation and / or at least one heteroatom; an alkoxy group containing from 6 to 30 carbon atoms and having one or more ringed carbocycles and optionally comprising at least one unsaturation and / or at least one heteroatom,
- the heteroatoms that can be found are the oxygen, nitrogen or sulfur atoms.
- the R 18 group of the hydrophobic group of formula (VI) is selected from the group consisting of octyloxy, dodecyloxy, tetradecyloxy, hexadecyloxy, octadecyloxy, oleyloxy, tocopheryloxy or cholesteryloxy radicals.
- the molar grafting rate in hydrophobic groups [GH1], [GH2], [GH3] and [GH4], is between 1 mol% and 25 mol%.
- the molar grafting level is between 5 mol% and 20 mol%.
- the molar grafting rate in hydrophobic groups is defined as the ratio between the number of amino acid residues of the main chain carrying at least one hydrophobic group, and the total number of amino acid residues of the main chain of the amphiphilic polyamino acid (the degree of polymerization).
- the amphiphilic polyamino acid also carries at least one graft of the polyalkylene glycol type bonded to a glutamate and / or aspartate residue.
- this graft corresponds to the following general formula (VII):
- R 19 represent independently of each other a direct bond or a spacer group comprising from 1 to 4 amino acid residues;
- X represents a heteroatom selected from the group consisting of oxygen, nitrogen and sulfur;
- R 20 and R 21 represent independently of each other a hydrogen atom or a linear alkyl group C1 to C4;
- t2 varies from 10 to 1000, preferably from 50 to 300.
- the polyalkylene glycol is for example a polyethylene glycol. It is desirable that the molar percentage of grafting of the polyalkylene glycol ranges from 1 to 30 mol%.
- amphiphilic polyamino acids of general formulas (I), (II), (III), (IV) or (V)
- amphiphilic polyamino acids of general formulas (I), (II), (III), (IV) or (V)
- Salificiation is generally carried out with a metal or organic cation such as:
- amine-based cations for organic cations: amine-based cations, oligoamine-based cations, and polyamine-based cations, especially polyethyleneimine.
- cations based on amino acid (s) a preferred variant is to select cations based on lysine or arginine such as polylysine or oligolysine.
- active principles such as proteins, peptides or small molecules, examples of which are given below, can associate spontaneously with these polyamino acids. This association can result from various physicochemical, non-covalent interactions. These are, for example, hydrogen bonds, ionic bonds, hydrophobic interactions, van der Waals forces, or simultaneously, several of these non-covalent bonds. In some cases, there may be, strictly speaking, no association between the active ingredients and the polyamino acids, but simply a steric entrapment of the active ingredient in a physical polyamino acid gel.
- amphiphilic polyamino acids that can be used in the formulation of the invention are, for example, obtained by methods known to those skilled in the art.
- the random polyamino acids can be obtained by grafting the hydrophobic group [GH], previously functionalized by the "spacer", directly on the polymer by a conventional coupling reaction.
- the block or multiblock polyamino acids can be obtained by sequential polymerization of the corresponding N-carboxy-amino acid anhydrides (NCA).
- NCA N-carboxy-amino acid anhydrides
- a polyamino acid, homopolyglutamate, homopolyaspartate or a glutamate / aspartate, block, multiblock or random copolymer is prepared according to conventional methods.
- N-carboxy-amino acid anhydrides N-carboxy-amino acid anhydrides
- the polymers obtained are then hydrolyzed under appropriate conditions to obtain the polymer in its acid form. These methods are inspired by the description given in patent FR-A-2 801 226 of the applicant.
- a number of polymers that can be used according to the invention for example, of poly (alpha-L-aspartic), poly (alpha-L-glutamic), poly (alpha-D-glutamic) and poly (gamma-L-glutamic) type can be used. ) variable masses are commercially available.
- Alpha-beta polyaspartic acid is obtained by condensation of aspartic acid (to obtain a polysuccinimide) followed by basic hydrolysis (see Tomida et al., Polymer 1997, 38, 4733-36).
- the coupling of the hydrophobic graft [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, in a suitable solvent such as dimethylformamide (DMF), N-methyl pyrrolidone (NMP) or dimethylsulfoxide (DMSO).
- a suitable solvent such as dimethylformamide (DMF), N-methyl pyrrolidone (NMP) or dimethylsulfoxide (DMSO).
- the carbodiimide is, for example, dicyclohexylcarbodiimide or diisopropylcarbodiimide.
- the degree of grafting is chemically controlled by the stoichiometry of the constituents and reactants or the reaction time.
- the hydrophobic grafts [GH] functionalised by a "spacer" are obtained by conventional peptide coupling or by direct condensation by acid
- NCA derivatives previously synthesized with the hydrophobic graft are used.
- the NCA-hydrophobic derivative is copolymerized with the NCA-O-Benzyl and then the benzyl groups are selectively removed by hydrolysis.
- a lipid or oily phase comprises a hydrophobic organic compound which is liquid at a temperature of between 20 ° C. and 40 ° C., or a mixture of such compounds.
- the lipid phase comprises at least one oil selected from metabolizable oils.
- the dynamic viscosity at 25 ° C is less than or equal to 400 mPa.s. It can be assumed that the lower the dynamic viscosity of the lipid phase, the better the injectability of the pharmaceutical composition. It is therefore preferred to use a lipid phase whose dynamic viscosity at 25 ° C. is less than or equal to 150 mPa.s, and more preferably, in increasing order preferably, less than or equal to 80 mPa.s. 40 mPa.s and 30 mPa.s.
- Useful metabolizable oils include oils selected from medium chain fatty acid triglycerides of animal, plant or synthetic origin, fatty acids of animal or vegetable origin, their esters and salts, and mixtures thereof.
- an oil of medium chain fatty acid triglyceride used is glyceryl tri-caprylate-caprate (e.g., Miglyol ® 812, Sasol ®).
- the lipid phase may comprise at least one oil selected from olive oil, sweet almond oil, sunflower oil, soybean oil, peanut oil, corn oil, coconut oil, cottonseed oil, castor oil, and mixtures thereof.
- the surfactant, or the surfactant mixture is selected such that it has an HLB of less than 6.
- the hydrophilic-lipophilic balance is an empirical measure of the degree of hydrophilicity or lipophilicity of a molecule.
- Various methods of measuring HLB have been described, in particular by Griffin (1949) "Classification of Surface-Active Agents by 'HLB'", Journal of the Society of Cosmetic Chemists 1: 311, Griffin (1954) "Calculation of HLB Values of Non-Ionic Surfactants, "Journal of the Society of Cosmetic Chemists 5: 259 or Davies (1957)” A Quantitative Kinetic Theory of Emulsion Type, I. Physical Chemistry of the Emulsifying Agent, "Gas / Liquid and Liquid / Liquid Interface. Proceedings of the International Congress of Surface Activity 426-438.
- the surfactant is selected from the group consisting of: polyglyceryl esters, ricinoleic acid esters, sorbitan oleate, lecithin, C 6 -C 12 fatty acid mono- and di-glycerides and / or unsaturated fatty acids, polyricinoleic acid esters, and mixtures thereof.
- the surfactant comprises polyglyceryl esters, in particular of natural fatty acids such as oleic, stearic, ricinoleic, linoleic and linolenic acids.
- polyglyceryl ricinoleates or even polyglyceryl polyricinoleates (PGPR) are preferred as surfactants.
- an aqueous phase is prepared containing at least one amphiphilic polymer at a concentration of between 5 and 100 mg per g of aqueous phase and at least one active ingredient.
- a concentration of 1 mg per g of aqueous phase can be provided.
- the aqueous phase is left stirring at 25 ° C for a sufficient time allowing the combination of the amphiphilic polymer and the active ingredient, for example 24h.
- a lipid phase is then prepared by solubilizing a surfactant or a mixture of surfactants, the HLB of which is less than 6, in a metabolizable oil or a mixture of metabolizable oils whose viscosity at 25 ° C. is less than or equal to 400 mPa. .s.
- the viscosity at 25 ° C of the oil or the oil mixture is less than 100 mPa.s.
- the aqueous phase and the lipid phase are brought into contact, with moderate stirring, for approximately 1 hour, while respecting an aqueous phase / lipid phase mass ratio of less than or equal to 50/50 and preferably less than or equal to 30/70.
- the dispersion of the aqueous phase in the lipid phase is carried out by means of a rotor / stator type homogenizer or with a high pressure homogenizer.
- the pharmaceutical composition contains a lipid phase excess of at least 10% by weight of lipid phase relative to the amount of lipid phase required to cause the inversion of the emulsion at 25 ° C.
- a method for measuring the inversion point of an emulsion is, for example, the conductimetric method described in particular in the following reference: Mrieux F., Seiller M. (1983). "Galenica 5: Scattered Systems - Surface Agents and Emulsions", vol. 1. Paris: Technique and Documentation - Lavoisier.
- the mass ratio dispersed aqueous: lipid continuous phase is less than or equal to 50:50 in the pharmaceutical composition, preferably less than or equal to 40: 60, and better still, less than or equal to 30: 70.
- the greater the proportion of continuous lipid phase the higher the viscosity of the water-in-oil emulsion depends on the viscosity of the continuous lipid phase.
- the pharmaceutical composition has a dynamic viscosity at 25 ° C less than or equal to 200mPa.s. More preferably, in ascending order of preference, the dynamic viscosity at 25 ° C of the pharmaceutical composition is less than or equal to 150mPa.s, or less than or equal to 100mPa.s.
- the aqueous phase contains at least one amphiphilic polymer and at least one active ingredient.
- the dynamic viscosity at 25 ° C. of the aqueous phase before dispersion in the continuous lipid phase may be greater than or equal to 20 mPa.s.
- the aqueous phase can also be in the form of a physical gel, dispersed in the continuous lipid phase.
- the pharmaceutical composition is parenterally injectable. The injectability test is described in the examples.
- the active ingredient (s) are chosen from proteins, glycoproteins, proteins linked to one or more polyalkylene glycol chains (for example PEGylated proteins, that is to say linked to one or more polyethylene glycol chains), peptides, polysaccharides, liposaccharides, steroids, oligonucleotides, polynucleotides and mixtures thereof.
- proteins glycoproteins, proteins linked to one or more polyalkylene glycol chains (for example PEGylated proteins, that is to say linked to one or more polyethylene glycol chains), peptides, polysaccharides, liposaccharides, steroids, oligonucleotides, polynucleotides and mixtures thereof.
- At least one active ingredient is hydrophilic.
- the active ingredient AP may be chosen from the group comprising: erythroproietin, oxytocin, vasopressin, adrenocorticotropic hormone, epidermal growth factor, platelet derived growth factor (PDGF), stimulating factors of hematopoiesis, factors VIII and IX, hemoglobin, cytochromes, albumin, prolactin, luliberin or gonadotropin releasing hormone (LHRH), LHRH antagonists, agonists of LHRH, human growth hormones (GH), porcine or bovine, growth hormone releasing factor, insulin, somatostatin, glucagon, interleukins (IL) such as IL-2, IL-2 IL-12 and their mixtures, interferons (IFN) ⁇ , ⁇ or ⁇ and mixtures thereof, gastrin, tetragastrin, pentagastrin, urogastrone, secretin, calcitonin, enkephalins, endo-morphines, angioten,
- the active ingredient is a small hydrophobic, hydrophilic or amphiphilic organic molecule of the type belonging to the family of anthracyclines, taxoids or camptothecins or of the type belonging to the family of peptides such as leuprolide or cyclosporin, and mixtures thereof.
- a small molecule is especially a small non-protein molecule, for example, free of amino acids.
- the active principle may be chosen from at least one of the families of the following active substances: alcohol abuse treatment agents, agents for treating Alzheimer's disease, anesthetics, acromegaly treatment agents, analgesics, antiasthmatics, allergy treatment agents, anti-cancer agents, anti-inflammatories, anticoagulants and antithrombotics, anticonvulsants, antiepileptics, antidiabetics, antiemetics, antiglaucoma, antihistamines, anti-infectives, antibiotics, antifungals, antivirals, antiparkinsonians, anti-cholinergics, antitussives, carbonic anhydrase inhibitors, cardiovascular agents, lipid-lowering agents, anti-arrhythmics , vasodilators, anti-angines, antihypertensives, vasoprotectants, cholinesterase inhibitors, central nervous system disorders, central nervous system stimulants, contraceptives, fertility promoters, uterine labor inducers and inhibitors, cyst
- the invention also relates to a method of therapeutic treatment consisting essentially of administering the composition as described herein, orally, nasally, ocular, dermal, vaginal, rectal or parenteral route.
- the parenteral routes include subcutaneous injection, intramuscular injection, intraperitoneal injection, intradermal injection, intravenous injection, intra-arterial injection, intraspinal injection, intravenous injection. - articular and intrapleural injection.
- Figure 1 Viscosity of the solution of amphiphilic polyamino acid (black triangles) and the suspension of amphiphilic polyamino acid in oil (black squares) of Example 3.
- Figure 2 Injectability measurement on a suspension of amphiphilic polyamino acid with 25G needles (black squares) and 27G (black triangles) of Example 3.
- Figure 3 In vitro release of methylene blue from a suspension without amphiphilic polyamino acid (black triangles) and with amphiphilic polyamino acid (black squares) of Example 4.
- FIG. 4 Viscosity variation at 10 s -1 of the suspension as a function of time (Example 6).
- Figure 5 Variation of the diameter (d50%) of the aqueous droplets as a function of time
- An amphiphilic polyamino acid is prepared in the following manner:
- the alpha-L-polyglutamate polymer with a mass equivalent to about 10,000 relative to a polyoxyethylene standard, is obtained by polymerization of NCAGIuOMe, followed by hydrolysis, as described. in the patent application FR 2 801 226.
- 5.5 g of this alpha-L-polyglutamate polymer are solubilized in 92 ml of dimethylformamide (DMF), by heating at 40 ° C. for 2 hours. Once the polymer solubilized, the temperature is allowed to return to 25 ° C.
- DMF dimethylformamide
- the estimated grafting rate by proton NMR is about 5.2% and HPLC analysis reveals a residual tocopherol level of less than 0.3%.
- the weight average molecular weight Mw, measured by GPC eluting with NMP, is 17,500 g / mol (equivalent of polymethyl methacrylate).
- Example 2 Stability of the active ingredient improved by the presence of the polyamino acid
- a suspension is manufactured according to the protocol described in Example 1 by incorporating an interferon alpha 2b protein (IFN ⁇ 2b) into the aqueous phase at a concentration of 1 mg / g.
- IFN ⁇ 2b interferon alpha 2b protein
- the quantification of IFN ⁇ 2b in the suspension is carried out by a sandwich-type ELISA assay (kit IM3193, Beckman Coulter). After storing the suspension containing IFN ⁇ 2b and the amphiphilic polyamino acid one week at 37 ° C., the ELISA assay, after extraction, gives an 85% coverage of IFN ⁇ 2b relative to the same emulsion stored for one week at 5 ° C. Under the same storage conditions, but in the absence of amphiphilic polyamino acid, the recovery is only 6%.
- aqueous phase of amphiphilic polyamino acid at a concentration of 50 mg / ml (which is a physical gel at this concentration) is dispersed in the lipid phase according to the procedure described in Example 1 to obtain a hydrogel suspension.
- the viscosity value was measured comparatively for suspension and initial gel. This measurement is carried out by characterizing the evolution of the viscosity as a function of the shearing gradient (from 10 to 1000s -1 ) at 25 ° C.
- This test consists in measuring the force required to be applied to the piston of a syringe to obtain a determined flow rate at the syringe outlet.
- injectable formulation is meant a formulation which, after evaluation by this TI injectability test, is characterized by a force of less than 25 N for a flow rate of 3.5 ml / min.
- the suspension described in Example 3 is introduced into a 1 ml syringe
- a first suspension is manufactured according to the protocol described in Example 1 by incorporating a hydrosulfide dye, methylene blue (Sigma) at a concentration of 0.01% (by weight) in the aqueous phase.
- a hydrosulfide dye methylene blue (Sigma)
- the dye simulates the active ingredient.
- a second suspension is made in the absence of amphiphilic polyamino acid and again incorporating methylene blue at 0.01% (by weight).
- 50 .mu.l are injected into 4 ml of a 0.1M phosphate buffer solution (PBS: Phosphate Buffer Saline, Sigma) which simulates the physiological medium.
- PBS Phosphate Buffer Saline
- Each assembly is placed under agitation and at a temperature of 37 ° C. Sixty microliters of continuous phase are taken at different times and then replaced with 60 ⁇ l of 0.1 M PBS.
- the concentration of methylene blue in the various samples is measured by UV-Vis spectroscopy at 550 nm (Lambda UV / Vis Spectrometer, Perkin-Elmer Instruments). It is thus possible to determine the proportion of dye released as a function of time in the continuous phase. Under these conditions, the behavior observed shows that the release of the dye is delayed: whereas about 70% of the methylene blue is dropped in 14 days in the case of the suspension not comprising an amphiphilic polyamino acid, the presence of the amphiphilic polyamino acid in the aqueous drops can reduce the release rate, since under the same conditions, after 14 days, the proportion of dye released is only of the order of 20%.
- Example 2 Further experimentation consisted in preparing a suspension according to the protocol of Example 1 and incorporating a therapeutic protein, human growth hormone (hGH: human growth hormone, Prospec) at a concentration of hGH: human growth hormone, Prospec) at a concentration of hGH: human growth hormone, Prospec
- the concentration of hGH in the external aqueous phase is measured by liquid chromatography (HPLC, C 18 column).
- aqueous phase of amphiphilic polyamino acid at a concentration of 20 mg / ml is dispersed in the lipid phase according to the procedure described in Example 1.
- the suspension thus obtained is stored at 5 ° C. and characterized as a function of time by viscosity measurement and by measuring the size of the aqueous droplets.
- the viscosity measurement is carried out by determining the value of the viscosity for a shear rate of 10 s -1 at 25 ° C. with an imposed stress-type rheometer (Gemini, Bohlin) on which a cone-shaped geometry has been installed. plane (2 cm or 4 cm and 1 ° angle).
- the size measurement is performed by laser diffraction with a granulometer (Mastersizer 200, Malvern) and using heptane (SDS) as dispersion medium.
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- Epidemiology (AREA)
- Medicinal Chemistry (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Inorganic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
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- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
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Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/003,095 US20080152675A1 (en) | 2006-12-20 | 2007-12-20 | Dispersion of polyamino acids in a continuous lipid phase |
JP2009542071A JP2010513407A (ja) | 2006-12-20 | 2007-12-20 | 連続脂質相中のポリアミノ酸の分散液 |
CA002670453A CA2670453A1 (fr) | 2006-12-20 | 2007-12-20 | Dispersion de polyaminoacides dans une phase lipidique continue |
EP07857971A EP2101728A1 (fr) | 2006-12-20 | 2007-12-20 | Dispersion de polyaminoacides dans une phase lipidique continue |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR06/11186 | 2006-12-20 | ||
FR0611186A FR2910318B1 (fr) | 2006-12-20 | 2006-12-20 | Dispersion de polyaminoacides dans une phase lipidique continue. |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008074871A1 true WO2008074871A1 (fr) | 2008-06-26 |
Family
ID=37895994
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2007/064352 WO2008074871A1 (fr) | 2006-12-20 | 2007-12-20 | Dispersion de polyaminoacides dans une phase lipidique continue |
Country Status (7)
Country | Link |
---|---|
US (1) | US20080152675A1 (fr) |
EP (1) | EP2101728A1 (fr) |
JP (1) | JP2010513407A (fr) |
CN (1) | CN101563066A (fr) |
CA (1) | CA2670453A1 (fr) |
FR (1) | FR2910318B1 (fr) |
WO (1) | WO2008074871A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9956164B2 (en) | 2014-04-16 | 2018-05-01 | Veyx-Pharma Gmbh | Veterinary pharmaceutical composition and use thereof |
Families Citing this family (19)
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FR2892725B1 (fr) * | 2005-10-31 | 2011-03-04 | Flamel Tech Sa | Acides polyglutamiques fonctionnalises par des derives de l'histidine et des groupements hydrophobes et leurs applications notamment therapeutiques |
CN103211281B (zh) * | 2013-04-10 | 2015-01-28 | 陕西科技大学 | 一种抗氧化油包水微乳液的制备方法 |
CN103215125B (zh) * | 2013-04-10 | 2014-07-02 | 陕西科技大学 | 一种油包水纳米乳液的制备方法 |
ES2502691B1 (es) * | 2013-09-25 | 2015-07-07 | Sani-Red, S.L. | Método de conservación y estabilización de proteínas, aplicable para desarrollos industriales de formulaciones de productos sanitarios, farmacéuticos y cosméticos |
US9744209B2 (en) | 2015-01-30 | 2017-08-29 | Par Pharmaceutical, Inc. | Vasopressin formulations for use in treatment of hypotension |
US9375478B1 (en) | 2015-01-30 | 2016-06-28 | Par Pharmaceutical, Inc. | Vasopressin formulations for use in treatment of hypotension |
US9687526B2 (en) | 2015-01-30 | 2017-06-27 | Par Pharmaceutical, Inc. | Vasopressin formulations for use in treatment of hypotension |
US9925233B2 (en) | 2015-01-30 | 2018-03-27 | Par Pharmaceutical, Inc. | Vasopressin formulations for use in treatment of hypotension |
US9937223B2 (en) | 2015-01-30 | 2018-04-10 | Par Pharmaceutical, Inc. | Vasopressin formulations for use in treatment of hypotension |
US9750785B2 (en) | 2015-01-30 | 2017-09-05 | Par Pharmaceutical, Inc. | Vasopressin formulations for use in treatment of hypotension |
FR3083088B1 (fr) * | 2018-06-29 | 2020-10-02 | Adocia | Solution injectable a ph 7 comprenant au moins une insuline basale dont le pi est compris entre 5,8 et 8,5 et un co-polyaminoacide porteur de charges carboxylates et de radicaux hydrophobes |
CN111565710A (zh) | 2017-12-07 | 2020-08-21 | 阿道恰公司 | 包含胰淀素、胰淀素受体激动剂或胰淀素类似物以及共聚氨基酸的呈可注射水溶液形式的组合物 |
CA3084699A1 (fr) | 2017-12-07 | 2019-06-13 | Adocia | Compositions sous forme d'une solution aqueuse injectable comprenant de l'amyline, un agoniste au recepteur de l'amyline ou un analogue d'amyline et un co-polyaminoacide |
WO2019110788A1 (fr) * | 2017-12-07 | 2019-06-13 | Adocia | Compositions sous forme d'une solution aqueuse injectable comprenant de l'amyline, un agoniste au recepteur de l'amyline ou un analogue d'amyline et un co-polyaminoacide |
JP2021505605A (ja) | 2017-12-07 | 2021-02-18 | アドシア | 5.8〜8.5のpIを有する少なくとも1つの基礎インスリン、および、カルボキシレート電荷および疎水性ラジカルを有するコポリアミノ酸を含むpH7を有する注射溶液 |
CN111727049A (zh) * | 2017-12-07 | 2020-09-29 | 阿道恰公司 | Ph 7的包含至少一种pi在5.8与8.5之间的基础胰岛素和带有羧酸根电荷及疏水基的共聚氨基酸的可注射溶液 |
WO2019110773A1 (fr) * | 2017-12-07 | 2019-06-13 | Adocia | Solution injectable a ph 7 comprenant au moins une insuline basale dont le pi est compris entre 5,8 et 8,5 et un co-polyaminoacide porteur de charges carboxylates et de radicaux hydrophobes |
JP6582084B2 (ja) * | 2018-03-22 | 2019-09-25 | ライオン株式会社 | 口腔用組成物 |
CN111603441B (zh) * | 2020-07-01 | 2022-11-25 | 瑞希(重庆)生物科技有限公司 | 一种两亲性聚氨基酸共聚物/泊洛沙姆温敏凝胶及其制备方法 |
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FR2860516A1 (fr) * | 2003-10-03 | 2005-04-08 | Flamel Tech Sa | Homopolyaminoacides telecheliques fonctionnalises par des groupements hydrophobes et leurs applications notamment therapeutiques |
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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 |
JP4057423B2 (ja) * | 2001-02-28 | 2008-03-05 | インターベツト・インターナシヨナル・ベー・ベー | 注射用油中水型乳剤 |
FR2862541B1 (fr) * | 2003-11-21 | 2007-04-20 | Flamel Tech Sa | Formulations pharmaceutiques pour la liberation prolongee d'interferons et leurs applications therapeutiques |
FR2862535B1 (fr) * | 2003-11-21 | 2007-11-23 | Flamel Tech Sa | Formulations pharmaceutiques pour la liberation prolongee d'interleukines et leurs applications therapeutiques |
TW200534864A (en) * | 2004-03-31 | 2005-11-01 | Aspion Co Ltd | S/O type pharmaceutical preparation and process for producing the same |
-
2006
- 2006-12-20 FR FR0611186A patent/FR2910318B1/fr not_active Expired - Fee Related
-
2007
- 2007-12-20 US US12/003,095 patent/US20080152675A1/en not_active Abandoned
- 2007-12-20 WO PCT/EP2007/064352 patent/WO2008074871A1/fr active Application Filing
- 2007-12-20 CN CNA2007800466480A patent/CN101563066A/zh active Pending
- 2007-12-20 EP EP07857971A patent/EP2101728A1/fr not_active Withdrawn
- 2007-12-20 JP JP2009542071A patent/JP2010513407A/ja active Pending
- 2007-12-20 CA CA002670453A patent/CA2670453A1/fr not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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WO1997034584A1 (fr) * | 1996-03-15 | 1997-09-25 | Flamel Technologies | Microparticules de gel composite comme vecteurs de principes actifs |
FR2840614A1 (fr) * | 2002-06-07 | 2003-12-12 | Flamel Tech Sa | Polyaminoacides fonctionnalises par de l'alpha-tocopherol et leurs applications notamment therapeutiques |
FR2860516A1 (fr) * | 2003-10-03 | 2005-04-08 | Flamel Tech Sa | Homopolyaminoacides telecheliques fonctionnalises par des groupements hydrophobes et leurs applications notamment therapeutiques |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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US9956164B2 (en) | 2014-04-16 | 2018-05-01 | Veyx-Pharma Gmbh | Veterinary pharmaceutical composition and use thereof |
Also Published As
Publication number | Publication date |
---|---|
FR2910318A1 (fr) | 2008-06-27 |
EP2101728A1 (fr) | 2009-09-23 |
US20080152675A1 (en) | 2008-06-26 |
CN101563066A (zh) | 2009-10-21 |
JP2010513407A (ja) | 2010-04-30 |
FR2910318B1 (fr) | 2009-07-03 |
CA2670453A1 (fr) | 2008-06-26 |
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