WO2016108534A1 - 고분자 나노입자 동결건조물 및 그 제조방법 - Google Patents
고분자 나노입자 동결건조물 및 그 제조방법 Download PDFInfo
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- WO2016108534A1 WO2016108534A1 PCT/KR2015/014318 KR2015014318W WO2016108534A1 WO 2016108534 A1 WO2016108534 A1 WO 2016108534A1 KR 2015014318 W KR2015014318 W KR 2015014318W WO 2016108534 A1 WO2016108534 A1 WO 2016108534A1
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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
- A61K9/14—Particulate form, e.g. powders, Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles
- A61K9/19—Particulate form, e.g. powders, Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles lyophilised, i.e. freeze-dried, solutions or dispersions
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/335—Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin
- A61K31/337—Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having four-membered rings, e.g. taxol
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/495—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
- A61K31/505—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim
- A61K31/506—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim not condensed and containing further heterocyclic rings
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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
- A61K47/06—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite
- A61K47/26—Carbohydrates, e.g. sugar alcohols, amino sugars, nucleic acids, mono-, di- or oligo-saccharides; Derivatives thereof, e.g. polysorbates, sorbitan fatty acid esters or glycyrrhizin
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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
- A61K9/08—Solutions
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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
- A61K9/48—Preparations in capsules, e.g. of gelatin, of chocolate
- A61K9/50—Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals
- A61K9/51—Nanocapsules; Nanoparticles
- A61K9/5107—Excipients; Inactive ingredients
- A61K9/513—Organic macromolecular compounds; Dendrimers
- A61K9/5146—Organic macromolecular compounds; Dendrimers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyethylene glycol, polyamines, polyanhydrides
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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
- A61K9/48—Preparations in capsules, e.g. of gelatin, of chocolate
- A61K9/50—Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals
- A61K9/51—Nanocapsules; Nanoparticles
- A61K9/5107—Excipients; Inactive ingredients
- A61K9/513—Organic macromolecular compounds; Dendrimers
- A61K9/5146—Organic macromolecular compounds; Dendrimers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyethylene glycol, polyamines, polyanhydrides
- A61K9/5153—Polyesters, e.g. poly(lactide-co-glycolide)
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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
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/06—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from hydroxycarboxylic acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/12—Powdering or granulating
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/04—Polyesters derived from hydroxy carboxylic acids, e.g. lactones
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/16—Halogen-containing compounds
- C08K2003/162—Calcium, strontium or barium halides, e.g. calcium, strontium or barium chloride
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2206—Oxides; Hydroxides of metals of calcium, strontium or barium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/10—Metal compounds
Definitions
- the present invention relates to a polymer nanoparticle lyophilized powder or cake and a method for preparing the same that are easily reconstructed, and more particularly, to a polymer comprising an amphiphilic block copolymer, a polylactic acid derivative having a carboxy terminal group, and a lyophilization aid.
- a polymer nanoparticle lyophilized powder or cake obtained by treating the aqueous solution of nanoparticles by a lyophilization process including an annealing step and easily reconstructed within 5 minutes when reconstituted with an injection diluent at atmospheric pressure, and a method for producing the same will be.
- Nanoparticles have been known as useful means for specifically delivering drugs only to the lesion site of a patient.
- nanoparticles made of biodegradable polymers are gradually applied in the body and are effectively applied to nanopharmaceuticals due to their excellent biocompatibility.
- the nanoparticles of such biodegradable polymers are unstable in aqueous solution, and are made into a lyophilized formulation which requires reconstruction in normal use.
- the polymer nanoparticles are redispersed in an injection medium, etc. In comparison, it takes a lot of time, so there is difficulty in actual use.
- Korean Laid-Open Patent Publication No. 10-2009-0049239 discloses a method for preparing a polymer micelle, in which a methotrexate dissolved in an organic solution is added dropwise to a copolymer aqueous solution of methoxy polyethylene glycol and chitosan, and the mixed solution is dialyzed with distilled water and then lyophilized.
- 2009/0036389 A1 also discloses that amphiphilic block copolymers and hydrophobic drugs are dissolved in water with a lower boiling point solvent (i.e., acetonitrile, methanol, ethanol and acetone) while mixing with water.
- a lower boiling point solvent i.e., acetonitrile, methanol, ethanol and acetone
- the present invention discloses a method in which a sufficient amount of water is added at a constant rate to form micelles, a lyophilizing agent is added, and then an organic solvent is removed and lyophilized again.
- Korean Patent No. 10-0421451 discloses a) a functional group for improving the affinity of the hydrophobic block (B) of the amphiphilic block copolymer composed of the hydrophilic block (A) and the hydrophobic block (B) with the hydrophobic drug.
- amphiphilic block copolymer substituted with hydrophobic drug was dissolved in an organic solvent, and then the organic solvent was evaporated to prepare a drug-polymer matrix; b) dissolving the drug-polymer matrix in water to prepare a drug-encapsulated aqueous polymer micelle solution; c) freeze-drying and then sterilizing the aqueous solution of the polymer micelle to provide a method for preparing a drug-containing polymer micelle composition, and Korean Patent No. 10-0531269 and US Patent No.
- 7,311,901 B2 disclose an amphiphilic block copolymer, After dissolving the monovalent metal salt and hydrophobic drug of the polylactic acid derivative together in a volatile organic solvent to prepare a homogeneous solution, the organic solvent was removed by distillation under reduced pressure, and water was added thereto to prepare a mixed micelle. In addition, a method of preparing polymer nanoparticles is proposed.
- all of the above patents do not mention the specific lyophilization method and the content of reconstruction time after lyophilization.
- WO 2003/005992 A1 discloses a method for improving re-solubility after freeze drying by adding at least one stabilizer selected from the group consisting of saccharides and polyethylene glycol to a drug-containing polymer micelle composed of an amphiphilic block copolymer.
- at least one stabilizer selected from the group consisting of saccharides and polyethylene glycol to a drug-containing polymer micelle composed of an amphiphilic block copolymer.
- an additional excipient called polyethylene glycol is added to the sugar, which is a conventional lyophilizing agent, and it would be desirable if the re-solubility can be improved only through specifically configured lyophilization conditions without such an additional excipient.
- US Patent Publication No. 2014/0199286 A1 Japanese Patent Publication JP 2008-231067 A and Japanese Patent Publication JP 2007-526329 A disclose the effect of the freeze-drying cycle on the lyophilized formulation
- US 2014/0199286 A1 0199286 A1 is intended for formulations consisting of protein, sodium phosphate, mannitol, trehalose and polysorbate
- JP 2008-231067 A is intended for formulations consisting solely of quinolone antibacterial agents and pH regulators
- JP 2007- 526329 A is not intended for polymer preparations using amphiphilic block copolymers or the like, for example, for proteins, nucleic acids, or virus-containing preparations.
- no method of improving the lyophilization method of the polymer preparation is known.
- the present invention is to solve the problems of the prior art as described above, as a freeze-drying of biodegradable polymer nanoparticles with excellent biocompatibility, easily reconstructed within 5 minutes when reconstructed with an injection diluent at atmospheric pressure It is a technical problem to provide a particle lyophilized powder or cake and a method of manufacturing the same.
- the present invention in the method for producing a freeze-dried product of the polymer nanoparticles by lyophilizing the polymer nanoparticle solution,
- the polymer nanoparticle solution may include an amphiphilic block copolymer in the form of A-B, A-B-A or B-A-B including a hydrophilic block (A) and a hydrophobic block (B); Polylactic acid derivatives having carboxy end groups; And lyophilization aids;
- the polymer concentration of the polymer nanoparticle solution is 120 mg / ml or less
- the lyophilization treatment a) a first freezing step of freezing the polymer nanoparticle solution within a temperature range of -10 to -45 °C; b) annealing the temperature of the result of the first freezing in the temperature range of -25 to 0 °C; c) a second freezing step of freezing the result of the annealing within a temperature range of -10 to -45 ° C; d) a first drying step of drying the resultant of the second freezing at a temperature of less than 0 ° C. under reduced pressure; And e) a second drying step of drying the resultant of the first drying under reduced pressure at a temperature of 0 ° C. or higher.
- the freeze-dried product of the polymer nanoparticles is to be rebuilt within 5 minutes when rebuilt with an aqueous solvent under atmospheric pressure
- the first freezing step is carried out under the conditions of a starting temperature of 0 to 25 °C, reaching temperature -10 to -45 °C, temperature reduction time 0.5 to 24 hours, and holding temperature 0.5 to 24 hours after temperature reduction,
- the annealing step is carried out under the conditions of starting temperature -10 to -45 °C, attainment temperature -25 to 0 °C, temperature rise time 0.5 to 24 hours, and retention time 0.2 to 8 hours,
- the second freezing step is carried out under the conditions of a start temperature of -25 to 0 ° C, an attainment temperature of -10 to -45 ° C, a temperature reduction time of 0.5 to 24 hours, and a retention time of 1 to 24 hours,
- the first drying step is performed under the conditions of a vacuum degree of 50 to 500 mTorr, a drying temperature of less than -45 to 0 °C, and a drying time of 24 to 96 hours,
- the second drying step is carried out under conditions of a vacuum degree of 50 to 500 mTorr, a drying temperature of 0 to 50 ° C, and a drying time of 24 to 96 hours.
- the amphiphilic block copolymer of the form A-B, A-B-A or B-A-B comprising a hydrophilic block (A) and a hydrophobic block (B); Polylactic acid derivatives having carboxy end groups; And a lyophilization aid; wherein the porosity (%) is 70 to 99.9%, has an average pore size of 70 ⁇ m or more, and is reconstructed within 5 minutes when reconstituted with an aqueous solvent under atmospheric pressure. do.
- the amphiphilic block copolymer in the form of A-B, A-B-A or B-A-B comprising a hydrophilic block (A) and a hydrophobic block (B); Polylactic acid derivatives having carboxy end groups; And a lyophilization aid, wherein the freezing body of the polymer nanoparticles has a Collapse temperature of -25 ° C or higher.
- the present invention it can be easily reconstructed within 5 minutes, more preferably within 3 minutes when reconstituted with a diluent for injection at atmospheric pressure, it is possible to obtain a freeze-dried biodegradable polymer nanoparticles excellent in biocompatibility, This may suitably contain drugs, in particular poorly water-soluble drugs.
- Example 1 is a graph showing the reconstruction time of Example 1 and Comparative Example 1 measured in Experimental Example 1.
- Figure 2 is a graph showing the reconstruction time of Examples 1 and 2 and Comparative Example 2 measured in Experimental Example 2.
- Figure 3 is a graph showing the reconstruction time in the vacuum and atmospheric pressure for Example 1 measured in Experimental Example 3.
- Figure 4 is an electron micrograph of the lyophilisate obtained in Example 3.
- FIG. 5 is an electron micrograph of the lyophilisate obtained in Comparative Example 1.
- the polymer nanoparticle solution used in the present invention is an amphiphilic block copolymer in the form of AB, ABA or BAB containing a hydrophilic block (A) and a hydrophobic block (B), a polylactic acid derivative having a carboxy terminal group, and a lyophilization aid. It includes, wherein the polymer concentration in the solution is 1 mg / mL or more 120 mg / ml or less, more preferably 10 mg / mL or more 100 mg / ml or less. If the polymer concentration in the polymer nanoparticle solution exceeds 120 mg / m there is a problem that the reconstruction time of the lyophilisate is long. The lower limit of the polymer concentration is preferably the lower the lower the time of reconstruction time, but if too low, it is difficult to maintain the cake form after lyophilization, so the lyophilization aid should be sufficiently added to maintain the cake form.
- the amphiphilic block copolymer is a biblock copolymer in which the hydrophilic block (A) and the hydrophobic block (B) are connected in an A-B form, and is characterized by being nonionic.
- the amphiphilic block copolymer is a core-shell-type polymer micelle in which a hydrophobic block (B) forms a core and a hydrophilic block (A) forms a shell in an aqueous solution. To form.
- the hydrophilic block (A) of the amphiphilic block copolymer is a polymer that is soluble in water, specifically, polyalkyleneglycol, for example, polyethyleneglycol, polyethylene-co-propyleneglycol ) Etc; Polyalkylene glycol derivatives such as monomethoxypolyalkyleneglycol, monoacetoxypolyethyleneglycol and the like; Polyvinylalcohol; Polyvinylpyrrolidone; Or polyacrylamide, and the like, and more specifically, selected from the group consisting of polyethylene glycol, monomethoxy polyethylene glycol, polyvinylpyrrolidone, polyvinyl alcohol, and polyacrylamide.
- the hydrophilic block (A) has a number average molecular weight of 500 to 50,000 Daltons, more specifically 500 to 20,000 Daltons, even more specifically 1,000 to 20,000 Daltons.
- the hydrophobic block (B) of the amphiphilic block copolymer is a polymer that is insoluble in water, has excellent biocompatibility and is biodegradable, and specifically, polyester, polyanhydride, and polyamino acid. ), Polyorthoester or polyphosphazine, and more specifically, polylactide, polyglycolide, polydioxan-2-one , Polycaprolactone, polylactic-co-glycolide, polylactic-co-caprolactone, polylactic-co-dioxan-2-one -co-dioxane-2-one) and polyglycolic-co-caprolactone, and derivatives thereof whose carboxylic acid ends are substituted with fatty acid groups.
- the hydrophobic block (B) has a number average molecular weight of 500 to 50,000 Daltons, more specifically 500 to 20,000 Daltons, even more specifically 1,000 to 20,000 Daltons.
- the composition ratio of the hydrophilic block (A) and the hydrophobic block (B) of the amphiphilic block copolymer to form a stable polymer micelle in an aqueous solution (hydrophilic block (A): hydrophobic block (B) ) Is 2: 8 to 8: 2, more specifically 3: 7 to 7: 3, and even more specifically 4: 6 to 6: 4, based on the weight ratio.
- the ratio of the hydrophilic block (A) is too small, the polymer may not form the polymer micelle in the aqueous solution, on the contrary, when the ratio is too high, the hydrophilicity may be so high that the stability may be reduced.
- the polylactic acid derivative having a carboxy end group for example, polylactic acid, polylactide, polyglycolide, polymandelic acid, polycaprolactone, polydioxan-2-one , At least one selected from the group consisting of polyamino acids, polyorthoesters, polyanhydrides and copolymers thereof, more specifically D, L-polylactic acid, D-polylactic acid, polymandelic acid, D, Copolymers of L-lactic acid and glycolic acid, copolymers of D, L-lactic acid and mandelic acid, copolymers of D, L-lactic acid and caprolactone, and D, L-lactic acid and 1,4-dioxane-2- At least one terminal selected from the group consisting of a copolymer of one, may have a carboxylic acid group or a group in which an alkali metal ion is bonded to a carboxyl group.
- the alkali metal ion may be a monovalent metal ion of sodium, potassium or lithium.
- the other end of the polylactic acid derivative other than the carboxy terminus is hydroxy, methoxy, ethoxy, acetoxy, benzoyloxy, decanoyloxy, palmitoyloxy, or palmitoyloxy. It may be one or more selected from the group consisting of.
- the carboxy terminus to which the alkali metal ion is bound acts as a hydrophilic group in an aqueous solution of pH 4 or higher to form a polymer micelle in the aqueous solution.
- the polylactic acid salt or derivatives thereof are present in a solid state at room temperature, and have a very stable form since the pH is neutral even when exposed to moisture in the air.
- the polylactic acid derivative in the form of an alkali metal ion bonded to the carboxy terminal is added to a micelle made of an amphiphilic block copolymer to harden the core of the micelle, thereby improving the encapsulation efficiency of the drug.
- the polylactic acid derivative is dissolved in an aqueous solution to balance the hydrophilic portion and the hydrophobic portion present in the polylactic acid derivative molecule to form a micelle. Therefore, when the molecular weight of the ester part which shows hydrophobicity becomes large, the association of the carboxy anion of the terminal which shows hydrophilicity becomes difficult, and micelle cannot be formed well, and when molecular weight is too small, it will melt
- the number average molecular weight of a suitable polylactic acid derivative capable of forming micelles at pH 4 or higher is 500-5,000 Daltons, more specifically 500-2,500 Daltons. If the molecular weight is too small, it is completely dissolved in water and micelle formation is difficult. On the contrary, if the molecular weight is too large, hydrophobicity is too large to dissolve even in an aqueous solution, making it impossible to form micelles.
- the molecular weight of such polylactic acid derivatives can be achieved by appropriately adjusting the reaction temperature and time in preparation.
- the polylactic acid derivative of the alkali metal ion is bonded to the carboxy terminal, it can be represented by the formula (1).
- A is Wherein Z is hydrogen, methyl or phenyl
- B is , or Wherein Y is hydrogen, methyl or phenyl
- R is hydrogen, acetyl group, benzoyl group, decanoyl group, palmitoyl group, methyl group or ethyl group,
- M is sodium, potassium or lithium
- n is an integer from 1 to 30,
- n is an integer of 0 to 20
- polylactic acid salt or derivative thereof in which the alkali metal ion is bonded to the carboxy terminal may be represented by the following Chemical Formula 2.
- X is a methyl group
- Y ' is hydrogen or a phenyl group
- p is an integer from 0 to 25,
- q is an integer from 0 to 25,
- the polylactic acid derivative of the alkali metal ion is bonded to the carboxy terminal may be represented by the formula (3) or (4).
- PLA is composed of D, L-polylactic acid, D-polylactic acid, polymandelic acid, copolymer of D, L-lactic acid and glycolic acid, copolymer of D, L-lactic acid and mandelic acid, D, L-lactic acid and A copolymer of caprolactone or a copolymer of D, L-lactic acid and 1,4-dioxan-2-one.
- L is -NR 1 -or -O- where R 1 is hydrogen or alkyl of C 1 to C 10 , a is an integer from 0 to 4, b is an integer from 1 to 10, and M is Sodium, potassium or lithium,
- Q is CH 3 , CH 2 CH 3 , CH 2 CH 2 CH 3 , CH 2 CH 2 CH 2 CH 3 or CH 2 C 6 H 5 ,
- PLA is composed of D, L-polylactic acid, D-polylactic acid, polymandelic acid, copolymer of D, L-lactic acid and glycolic acid, copolymer of D, L-lactic acid and mandelic acid, D, L-lactic acid and A copolymer of caprolactone or a copolymer of D, L-lactic acid and 1,4-dioxan-2-one.
- amphiphilic block copolymer and the polylactic acid derivative having a carboxy end group together may form a mixed micelle aqueous solution in water.
- the polymer nanoparticle solution may further comprise a poorly water-soluble drug, as a result may be a poorly water-soluble drug in the mixed micelles.
- a method of including a poorly water-soluble drug in a mixed micelle is, for example, a water-soluble drug, an amphiphilic block copolymer, and a polylactic acid derivative having a carboxy end group in an organic solvent, followed by removal of the organic solvent.
- a mixed micelle may be prepared by dissolving a poorly water-soluble drug and a polylactic acid derivative having a carboxyl end group in an organic solvent, removing the organic solvent, and then adding an amphiphilic block copolymer to water to add the aqueous solution. have.
- the organic solvent may be, at least one selected from the group consisting of alcohols, dichloromethane, chloroform, acetone, tetrahydrofuran, acetic acid, acetonitrile and dioxane.
- the content of the organic solvent based on the total weight of the composition may be 0.5 to 30% by weight, specifically 0.5 to 15% by weight, more specifically 1 to 10% by weight.
- the content of the organic solvent is less than 0.5% by weight, it is difficult to dissolve the drug, and when it exceeds 30% by weight, the drug may be precipitated upon reconstruction.
- the poorly water-soluble drug can be dissolved in an organic solvent at the same time or in a different order from the polymer.
- the drug and the polymer may be added and dissolved in an organic solvent at the same time, or the polymer may be dissolved in an organic solvent first and the drug is dissolved, or the drug may be first dissolved in the organic solvent and then the polymer may be added and dissolved.
- the temperature at which the poorly water-soluble drug is dissolved in the organic solvent is not limited thereto, but in order to prevent decomposition of the drug, 0 to 60 ° C, more specifically 10 to 50 ° C, even more specifically 10 to 40 ° C. Can be. Removal of the organic solvent may be carried out by vacuum distillation, air stream drying, heat drying. In addition, when a small amount of the organic solvent is used, the organic solvent removal step can be omitted.
- the aqueous solution may be conventional water, distilled water, distilled water for injection, physiological saline, 5% glucose, buffer, and the like.
- the micellization process is characterized in that the polymer micelle is formed by adding an aqueous solution at a temperature of 0 to 80 °C, more specifically 10 to 60 °C, even more specifically 10 to 40 °C.
- the poorly water-soluble drug may be selected from drugs having a solubility in water (25 ° C.) of 100 mg / mL or less.
- anticancer agents antifungal agents, immunosuppressants, analgesics, anti-inflammatory agents, antiviral agents, anxiolytic sedatives, contrasting agents Sex hormones, including corticosteroids, diagnostic agents, diagnostic imaging agents, diuretics, prostaglandins, radio-pharmaceuticals, steroids It is selected from, but not limited to, sex hormones and combinations thereof.
- the poorly water-soluble drug may be selected from anticancer agents, specifically, may be a taxane anticancer agent.
- the taxane anticancer agent may be paclitaxel, docetaxel, carbazitaxel, 7-epipaclitaxel, t-acetyl paclitaxel, or 10-desacetyl.
- the poorly water-soluble drug may be selected from antifungal agents, specifically, it may be an azole antifungal agent.
- the azole antifungal system may be one or two or more mixtures selected from the group consisting of barleyconazole, posaconazole, Ravuconazole, fluconazole, iconazole, ketoconazole and itraconazole, and more specifically, For example, it is voriconazole.
- 0.1 to 99.9% by weight of amphiphilic block copolymer and 0.1 to 99.9% by weight of polylactic acid derivative preferably relative to 100% by weight of the total of 100% by weight of the amphiphilic block copolymer and the polylactic acid derivative having carboxy end groups
- from 20 to 95% by weight of amphiphilic block copolymers and from 5 to 80% by weight of polylactic acid derivatives, more preferably from 50 to 90% by weight of amphiphilic block copolymers and from 10 to 50% by weight of polylactic acid derivatives Can be used.
- from 0.1 to 20% by weight of poorly soluble drugs may be used relative to 100% by weight of the amphiphilic block copolymer, polylactic acid derivatives having carboxy end groups, and poorly water soluble drugs.
- the polymer nanoparticle solution may further include salts of divalent or trivalent metal ions, and as a result, salts of divalent or trivalent metal ions may be added to the mixed micelle aqueous solution.
- the divalent or trivalent metal ions are added to further improve the stability of the polymer micelle formed by mixing the amphiphilic block copolymer and the polylactic acid derivative having a carboxy end group, and the divalent or trivalent metal ions are polylactic acid. It combines with the terminal carboxyl group of the derivative to form a polymer micelle with divalent or trivalent metal ions.
- a divalent or trivalent metal ion is substituted with a monovalent metal cation of a carboxy terminal group to form an ionic bond in a polylactic acid salt or a derivative thereof in which an alkali metal ion is bonded to a carboxy terminus. Due to the strong binding force serves to further improve the stability of the polymer micelles.
- the divalent or trivalent metal ion is calcium (Ca 2 + ), magnesium (Mg 2 + ), barium (Ba 2 + ), chromium (Cr 3 + ), iron (Fe 3 + ), manganese (Mn + 2), may be selected from nickel (Ni + 2), copper (Cu + 2), zinc (Zn 2+), and aluminum group consisting of (Al 3 +).
- divalent or trivalent metal ions are added to the mixed polymer composition of the amphiphilic block copolymer and polylactic acid derivative in the form of sulfates, hydrochlorides, carbonates, phosphates or hydroxides, specifically calcium chloride (CaCl).
- the divalent or trivalent metal ions may be added in an amount of 0.001 to 10 equivalents, specifically 0.5 to 2.0 equivalents, relative to the carboxy end group equivalent of the polylactic acid derivative.
- the lyophilization aid (also called freeze-drying agent) may be selected from the group consisting of sugars, sugar alcohols and mixtures thereof.
- the sugar may be at least one selected from the group consisting of lactose, maltose, sucrose and trehalose, and the sugar alcohol may be at least one selected from the group consisting of mannitol, sorbitol, maltitol, xylitol and lactitol.
- the lyophilization aid is added to enable the lyophilized composition to maintain cake form.
- the lyophilization adjuvant after lyophilization of the polymer nanoparticle composition, serves to help to uniformly dissolve quickly in the process of reconstitution.
- the content of the lyophilization aid is 1 to 90% by weight, more specifically 10 to 60% by weight, based on 100% of the total dry weight of the lyophilization composition.
- the polymer concentration of the stock solution of the polymer nanoparticle solution to be lyophilized is 1 mg / ml or more, and It is preferably at least 10 mg / ml, and also at most 120 mg / ml, more preferably at most 100 mg / ml, even more preferably at most 50 mg / ml.
- the concentration of the polymer in the solution is too high, it is likely to take a long time to completely dissolve due to the possibility of the formation of polymer mass when re-dried after freeze-drying, and if the concentration of the polymer is too low, the volume of the solution is too large to be inconvenient to use.
- the first freezing step includes a starting temperature of 0 to 35 ° C (more preferably 0 to 25 ° C, most preferably 0 to 15 ° C), an arrival temperature of -10 to -45 ° C (more preferably -20 to -40 ° C) , Most preferably -30 to -40 ° C, temperature reduction time 0.5 to 24 hours (more preferably 0.5 to 12 hours, most preferably 0.5 to 6 hours), and retention time 0.5 to 24 hours (more than Preferably 0.5 to 12 hours, most preferably 0.5 to 6 hours);
- the annealing step comprises a starting temperature of -10 to -45 ° C (more preferably -20 to -40 ° C, most preferably -30 to -40 ° C), an attainment temperature of -25 to 0 ° C (more preferably -25 to -10 deg. C, most preferably -25 to -15 deg. C, a temperature increase time of 0.5 to 24 hours (more preferably 0.5 to 12 hours, most preferably 0.5 to 6 hours), and a holding time of temperature of 0.2 to 12 Carried out under conditions of time (more preferably 0.5 to 8 hours, most preferably 0.5 to 4 hours);
- the second freezing step is a starting temperature of -25 to 0 ° C (more preferably -25 to -10 ° C, most preferably -25 to -15 ° C), and an arrival temperature of -10 to -45 ° C (more preferably- 20 to -40 ° C, most preferably -30 to -40 ° C, temperature reduction time 0.5 to 24 hours (more preferably 0.5 to 12 hours, most preferably 0.5 to 6 hours), and retention time after temperature reduction 1 To 24 hours (more preferably 0.5 to 12 hours, most preferably 0.5 to 6 hours);
- the first drying step is a vacuum degree of 50 to 500 mTorr (more preferably 50 to 150 mTorr, most preferably 50 to 100 mTorr), drying temperature less than -45 to 0 °C (more preferably -5 to -40 °C, Most preferably -10 to -30 ° C, and drying time of 24 to 96 hours (more preferably 24 to 72 hours, most preferably 48 to 72 hours);
- the second drying step is a vacuum degree of 50 to 500 mTorr (more preferably 50 to 150 mTorr, most preferably 50 to 100 mTorr), drying temperature 0 to 50 °C (more preferably 5 to 40 °C, most preferably 15 to 35 ° C.), and drying conditions of 6 to 48 hours (more preferably 6 to 24 hours, most preferably 12 to 24 hours).
- the first drying step is maintained for 1 to 5 hours at -45 to less than -20 ° C; Temperature increase from -45 to less than -20 ° C to -20 to less than -10 ° C for 2 to 6 hours; 10 to 40 hours holding at -20 to below -10 < 0 >C; Temperature increase from -20 to less than -10 ° C to less than -10 to 0 ° C for 1 to 5 hours; And, it may include the step of maintaining for 10 to 40 hours at less than -10 to 0 °C.
- the second drying step comprises raising the temperature from -10 to less than 0 ° C to 0 to 20 ° C for 0.5 to 3 hours; 0.5-6 hours hold at 0-20 degreeC or less; Temperature rising from 20 ° C. to less than 0 ° C. to 20 ° C. for 2 to 9 hours; And, it may include the step of maintaining for 3 to 30 hours at 20 to 50 °C.
- the method of preparing a freeze-dried product of the polymer nanoparticles of the present invention may further include a step of filling the lyophilized product as described above into a vial, filling with nitrogen and insulated or in a vacuum state.
- the freeze-dried product of the polymer nanoparticles obtained as described above is 0.1 ⁇ 78.9% by weight of amphiphilic block copolymer, 20.0 ⁇ 98.8% by weight of polylactic acid derivative having a divalent or trivalent metal ion at the carboxy terminus, 0.1-20.0% by weight of poorly water-soluble drugs and 1-79.8% by weight of lyophilization aids.
- the lyophilisate of the polymer nanoparticles prepared according to the method for preparing the lyophilizate of the polymer nanoparticles of the present invention is characterized in that the reconstruction is carried out within 5 minutes, more preferably within 3 minutes when reconstituted with an aqueous solvent under atmospheric pressure.
- an amphiphilic block copolymer of the form A-B, A-B-A or B-A-B comprising a hydrophilic block (A) and a hydrophobic block (B); Polylactic acid derivatives having carboxy end groups; And lyophilization aids; the porosity (%) is 70 to 99.9%, the average pore size ( ⁇ m) is 70 ⁇ m or more (eg 70 to 200 ⁇ m), more preferably 90 ⁇ m or more (eg 90 To 200 ⁇ m), most preferably at least 100 ⁇ m (eg, 100 to 200 ⁇ m), and lyophilized polymer nanoparticles, which are rebuilt within 5 minutes, more preferably within 3 minutes, when rebuilt with an aqueous solvent under atmospheric pressure. This is provided. If the porosity is too low or the porosity is too small, the permeation of the aqueous solution is delayed during reconstruction, resulting in long reconstruction time.
- the porosity n (%) can be calculated and obtained by Equation 1 below.
- n (V-Vs) / V ⁇ 100 (%)
- Vs is the volume of the solid part only (volume of freeze-dried cake) and V is the total volume (volume of freeze-dried cake) including the voids.
- the amphiphilic block copolymer in the form of A-B, A-B-A or B-A-B comprising a hydrophilic block (A) and a hydrophobic block (B); Polylactic acid derivatives having carboxy end groups; And a lyophilization aid; wherein the Collapse temperature is preferably -25 to -5 ° C, more preferably -20 to -5 ° C, and most preferably -15 to -5 ° C.
- a freezing body of the particles is provided.
- the Collapse temperature refers to the maximum temperature of the sample that is acceptable during the first drying step, the temperature at which the cake shape is distorted or collapses when the first drying step is performed at a temperature above this temperature. do.
- the measurement of the collapse temperature is made using a freeze-drying microscope.
- amphiphilic block copolymer and polylactic acid salt having a alkali metal ion bonded to the carboxy terminus or a derivative thereof used in the following examples were prepared according to the method disclosed in WO 03/033592, the contents of which Is incorporated herein by reference.
- Example 1 and 2 freeze-drying of polymer nanoparticles cake Produce
- amphiphilic block copolymer monomethoxy polyethylene glycol-polylactide having a number average molecular weight of 2,000-1,766 daltons was synthesized.
- D, L-PLA-COONa having a number average molecular weight of 1,800 daltons was synthesized.
- the polymer nanoparticle solution was completely dissolved by adding D-mannitol as a lyophilizer, filtered using a filter having a pore size of 200 nm, and then lyophilized according to the lyophilization conditions below to freeze-dried cake of the polymer nanoparticles. Prepared.
- Example 2 The same process as in Example 1 was performed except that the annealing process and the second freezing process were not performed under different freezing conditions. That is, the freezing conditions of Table 4 were used.
- the reconstruction time As can be seen from the reconstruction time measurement result of FIG. 2, when the concentration of the stock solution used for lyophilization was high, the reconstruction time tended to be longer. In particular, in case of more than 1.2 mg / mL (about 120 mg / mL in polymer concentration), the reconstruction time increased rapidly.
- Example 3 The freeze-dried cake of the polymer nanoparticles prepared in Example 1 was rebuilt in the same manner as in Experimental Example 1, but the reconstruction time was measured while varying the degree of vacuum (vacuum vs. atmospheric pressure) inside the vial during reconstruction. The measurement results are shown in FIG. 3.
- the collapse temperature of the polymer nanoparticle lyophilized stock solution of Example 1 was frozen through a freezing process including annealing, which was frozen through a simple freezing process without annealing. Higher than the case. Therefore, when annealing is performed during freezing, it was confirmed that more efficient freeze drying can be achieved.
- Example 2 The same process as in Example 1 was carried out except that 3.0 mL of dichloromethane was added to the amount of docetaxel and polylactic acid used as shown in Table 6 and stirred until it became a clear solution at 40 ° C.
- the porosity of the prepared docetaxel-containing polymer nanoparticle lyophilized product was 90.0% (1.0 mg / mL in the docetaxel concentration of the freeze-dried stock solution).
- FIG. 4 The result of observing the lyophilisate of Example 3 magnified 50 times with an electron microscope is shown in FIG. 4.
- Figure 4 it can be seen that the lyophilisate according to the present invention has large amorphous pores.
- FIG. 5 the result of observing the lyophilisate obtained in Comparative Example 1 at 50 times magnification with an electron microscope is shown in FIG. 5.
- Figure 4 Figure 5, and Table 7, it can be seen that the lyophilisate obtained according to the present invention has larger pores than the lyophilisate obtained according to a conventional method.
- Example 2 The same process as in Example 1 was carried out except that 3.0 mL of dichloromethane was added to the amount of paclitaxel and polylactic acid used as shown in Table 8 and stirred until it became a clear solution at 45 ° C.
- Example 2 The same process as in Example 1 was carried out except that 3.0 mL of dichloromethane was added to the amount of boricconazole and polylactic acid used as shown in Table 9 and stirred until it became a clear solution at 40 ° C.
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Abstract
Description
Claims (16)
- 고분자 나노입자 용액을 동결건조 처리하여 고분자 나노입자의 동결건조물을 제조하는 방법에 있어서,상기 고분자 나노입자 용액은 친수성 블록(A)과 소수성 블록(B)을 포함하는 A-B, A-B-A 또는 B-A-B 형태의 양친성 블록 공중합체; 카르복시 말단기를 갖는 폴리락트산 유도체; 및 동결건조 보조제;를 포함하고,상기 고분자 나노입자 용액의 고분자 농도는 120 mg/ml 이하이며,상기 동결건조 처리는,a) 고분자 나노입자 용액을 -10 내지 -45℃의 온도 범위 내에서 동결하는 제1동결 단계;b) 상기 제1동결의 결과물을 -25 내지 0℃의 온도 범위 내로 승온하는 어닐링(annealing) 단계;c) 상기 어닐링의 결과물을 -10 내지 -45℃의 온도 범위 내에서 동결하는 제2동결 단계;d) 상기 제2동결의 결과물을 0℃ 미만의 온도에서 감압 하에 건조하는 제1건조 단계; 및e) 상기 제1건조의 결과물을 0℃ 이상의 온도에서 감압 하에 건조하는 제2건조 단계;를 포함하며,상기 고분자 나노입자의 동결건조물은 대기압 하에서 수성 용매로 재건 시 5분 이내에 재건되는 것인,고분자 나노입자의 동결건조물 제조방법.
- 제1항에 있어서, 상기 동결건조 처리에서상기 제1동결 단계는 출발온도 0 내지 25℃, 도달온도 -10 내지 -45℃, 감온시간 0.5 내지 24시간, 및 감온후 유지시간 0.5 내지 24시간의 조건하에 수행되고,상기 어닐링 단계는 출발온도 -10 내지 -45℃, 도달온도 -25 내지 0℃, 승온시간 0.5 내지 24시간, 및 승온후 유지시간 0.2 내지 8시간의 조건하에 수행되며,상기 제2동결 단계는 출발온도 -25 내지 0℃, 도달온도 -10 내지 -45℃, 감온시간 0.5 내지 24시간, 및 감온후 유지시간 1 내지 24시간의 조건하에 수행되고,상기 제1건조 단계는 진공도 50 내지 500 mTorr, 건조온도 -45 내지 0℃ 미만, 및 건조시간 24 내지 96 시간의 조건하에 수행되며,상기 제2건조 단계는 진공도 50 내지 500 mTorr, 건조온도 0 내지 50℃, 및 건조시간 24 내지 96 시간의 조건하에 수행되는,고분자 나노입자의 동결건조물 제조방법.
- 제1항에 있어서, 상기 친수성 블록(A)이 폴리에틸렌글리콜, 모노메톡시폴리에틸렌글리콜, 폴리비닐피롤리돈, 폴리비닐알코올 및 폴리아크릴아마이드로 이루어진 그룹으로부터 선택되고; 상기 소수성 블록(B)이 폴리락타이드, 폴리글리콜라이드, 폴리다이옥산-2-온, 폴리카프로락톤, 폴리락틱-co-글리콜라이드, 폴리락틱-co-카프로락톤, 폴리락틱-co-다이옥산-2-온 및 폴리글리콜릭-co-카프로락톤, 및 그 카르복시산 말단이 지방산기로 치환된 이들의 유도체로 이루어진 그룹으로부터 선택되는, 고분자 나노입자의 동결건조물 제조방법.
- 제1항에 있어서, 상기 친수성 블록(A)의 수평균 분자량이 500 내지 20,000 달톤이고, 상기 소수성 블록(B)의 수평균 분자량이 500 내지 20,000 달톤인, 고분자 나노입자의 동결건조물 제조방법.
- 제4항에 있어서, 상기 양친성 블록 공중합체의 친수성 블록(A)과 소수성 블록(B)의 조성비가 중량비를 기준으로 2:8 내지 8:2인, 고분자 나노입자의 동결건조물 제조방법.
- 제1항에 있어서, 상기 카르복시 말단기를 갖는 폴리락트산 유도체가, D,L-폴리락트산, D-폴리락트산, 폴리만델릭산, D,L-락트산과 글리콜산의 공중합체, D,L-락트산과 만델릭산의 공중합체, D,L-락트산과 카프로락톤의 공중합체 및 D,L-락트산과 1,4-디옥산-2-온 의 공중합체로 이루어진 군에서 선택된 1종 이상의 말단에, 카르복시산기 또는 카르복시기에 알칼리 금속이온이 결합된 기를 갖는 것인, 고분자 나노입자의 동결건조물 제조방법.
- 제1항에 있어서, 상기 카르복시 말단기를 갖는 폴리락트산 유도체의 수평균 분자량이 500~5,000 달톤인, 고분자 나노입자의 동결건조물 제조방법.
- 제1항에 있어서, 상기 고분자 나노입자 용액이 물에 대한 용해도(25℃)가 100 mg/mL 이하인 수난용성 약물을 추가로 포함하는, 고분자 나노입자의 동결건조물 제조방법.
- 제1항에 있어서, 상기 고분자 나노입자 용액이 2가 또는 3가 금속이온의 염을 추가로 포함하는, 고분자 나노입자의 동결건조물 제조방법.
- 제9항에 있어서, 상기 2가 또는 3가의 금속이온이 칼슘(Ca2 +), 마그네슘(Mg2+), 바륨(Ba2 +), 크롬(Cr3 +), 철(Fe3 +), 망간(Mn2 +), 니켈(Ni2 +), 구리(Cu2 +), 아연(Zn2+) 및 알루미늄(Al3 +)으로 이루어진 그룹으로부터 선택되는, 고분자 나노입자의 동결건조물 제조방법.
- 제1항에 있어서, 상기 동결건조 보조제가 당, 당알코올 및 이들의 혼합물로 이루어진 그룹으로부터 선택되는, 고분자 나노입자의 동결건조물 제조방법.
- 제11항에 있어서, 상기 당이 락토스, 말토스, 슈크로스 및 트레할로스로 이루어진 그룹으로부터 선택되는 하나 이상이고, 상기 당알코올이 만니톨, 솔비톨, 말티톨, 자일리톨 및 락티톨로 이루어진 그룹으로부터 선택되는 하나 이상인, 고분자 나노입자의 동결건조물 제조방법.
- 제1항에 있어서, 제조된 고분자 나노입자의 동결건조물이 양친성 블록 공중합체 0.1~78.9중량%, 카르복시 말단에 2가 또는 3가의 금속이온이 결합된 폴리락트산 유도체 20.0~98.8중량%, 수난용성 약물 0.1~20.0 중량% 및 동결건조 보조제 1~79.8 중량%를 포함하는, 고분자 나노입자의 동결건조물 제조방법.
- 제1항 내지 제13항 중 어느 한 항에 따른 방법에 의해 제조되며, 대기압 하에서 수성 용매로 재건 시 5분 이내에 재건되는 것을 특징으로 하는, 고분자 나노입자의 동결건조물.
- 친수성 블록(A)과 소수성 블록(B)을 포함하는 A-B, A-B-A 또는 B-A-B 형태의 양친성 블록 공중합체; 카르복시 말단기를 갖는 폴리락트산 유도체; 및 동결건조 보조제;를 포함하고,공극률(%)이 70 내지 99.9%이며,평균 공극크기가 70 μm 이상이고,대기압 하에서 수성 용매로 재건 시 5분 이내에 재건되는,고분자 나노입자의 동결건조물.
- 친수성 블록(A)과 소수성 블록(B)을 포함하는 A-B, A-B-A 또는 B-A-B 형태의 양친성 블록 공중합체; 카르복시 말단기를 갖는 폴리락트산 유도체; 및 동결건조 보조제;를 포함하고,붕괴 온도가 -25℃ 이상인,고분자 나노입자의 동결체.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017535447A JP6487051B2 (ja) | 2014-12-30 | 2015-12-28 | ポリマーナノ粒子の凍結乾燥物、及びその製造方法 |
| US15/540,674 US10765753B2 (en) | 2014-12-30 | 2015-12-28 | Polymer nanoparticle freeze-dried product, and preparation method therefor |
| EP15875628.8A EP3241546B1 (en) | 2014-12-30 | 2015-12-28 | Polymer nanoparticle freeze-dried product, and preparation method therefor |
| CN201580072080.4A CN107106496B (zh) | 2014-12-30 | 2015-12-28 | 聚合物纳米粒子冷冻干燥物及其制备方法 |
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| KR10-2014-0194156 | 2014-12-30 | ||
| KR20140194156 | 2014-12-30 |
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| US (1) | US10765753B2 (ko) |
| EP (1) | EP3241546B1 (ko) |
| JP (1) | JP6487051B2 (ko) |
| KR (1) | KR101801566B1 (ko) |
| CN (1) | CN107106496B (ko) |
| WO (1) | WO2016108534A1 (ko) |
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| US20210077406A1 (en) * | 2017-11-16 | 2021-03-18 | Samyang Biopharmaceuticals Corporation | Composition and method for freeze-drying pharmaceutical composition containing anionic drug |
| CN120514915A (zh) * | 2025-07-22 | 2025-08-22 | 成都恒美盛生物科技有限公司 | 一种高稳定性可注射软组织填充材料及其制备方法和用途 |
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| KR102144479B1 (ko) * | 2018-05-24 | 2020-08-13 | 주식회사 덱스레보 | 조직 수복용 조성물 및 이의 제조방법 |
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| WO2021137610A1 (ko) * | 2019-12-31 | 2021-07-08 | 주식회사 삼양홀딩스 | 저분자량의 양친성 블록 공중합체를 포함하는 나노입자의 제조 방법 |
| KR102251192B1 (ko) * | 2020-08-07 | 2021-05-13 | 주식회사 덱스레보 | 조직 수복용 조성물 및 이의 제조방법 |
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| CN115837078A (zh) * | 2022-12-27 | 2023-03-24 | 西安超磁纳米生物科技有限公司 | 一种聚合物修饰的无机纳米材料冻干粉、制备方法及其应用 |
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|---|---|---|---|---|
| US20210077406A1 (en) * | 2017-11-16 | 2021-03-18 | Samyang Biopharmaceuticals Corporation | Composition and method for freeze-drying pharmaceutical composition containing anionic drug |
| CN120514915A (zh) * | 2025-07-22 | 2025-08-22 | 成都恒美盛生物科技有限公司 | 一种高稳定性可注射软组织填充材料及其制备方法和用途 |
| CN120514915B (zh) * | 2025-07-22 | 2025-09-23 | 成都恒美盛生物科技有限公司 | 一种高稳定性可注射软组织填充材料及其制备方法和用途 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2018506518A (ja) | 2018-03-08 |
| CN107106496B (zh) | 2020-09-15 |
| US10765753B2 (en) | 2020-09-08 |
| US20180000946A1 (en) | 2018-01-04 |
| EP3241546B1 (en) | 2021-02-17 |
| CN107106496A (zh) | 2017-08-29 |
| KR101801566B1 (ko) | 2017-11-28 |
| KR20160083803A (ko) | 2016-07-12 |
| JP6487051B2 (ja) | 2019-03-20 |
| EP3241546A4 (en) | 2018-08-15 |
| EP3241546A1 (en) | 2017-11-08 |
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