WO2022124818A1 - 재건 시간을 단축할 수 있는 고분자 미셀 나노입자의 제조 방법 - Google Patents
재건 시간을 단축할 수 있는 고분자 미셀 나노입자의 제조 방법 Download PDFInfo
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- WO2022124818A1 WO2022124818A1 PCT/KR2021/018630 KR2021018630W WO2022124818A1 WO 2022124818 A1 WO2022124818 A1 WO 2022124818A1 KR 2021018630 W KR2021018630 W KR 2021018630W WO 2022124818 A1 WO2022124818 A1 WO 2022124818A1
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- Prior art keywords
- freeze
- drying
- less
- nanoparticles
- polymer
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- 239000000693 micelle Substances 0.000 title claims abstract description 38
- 239000002105 nanoparticle Substances 0.000 title claims abstract description 31
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- 239000012736 aqueous medium Substances 0.000 claims abstract description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 32
- 238000004108 freeze drying Methods 0.000 claims description 26
- 238000001035 drying Methods 0.000 claims description 9
- 239000004480 active ingredient Substances 0.000 claims description 7
- 230000002209 hydrophobic effect Effects 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
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- 229920000747 poly(lactic acid) Polymers 0.000 claims description 4
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Polymers OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 claims description 3
- 239000002202 Polyethylene glycol Substances 0.000 claims description 3
- 229920000954 Polyglycolide Polymers 0.000 claims description 3
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- 235000000346 sugar Nutrition 0.000 claims description 3
- 150000005846 sugar alcohols Chemical class 0.000 claims description 3
- 229920002732 Polyanhydride Polymers 0.000 claims description 2
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- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 2
- 229920002401 polyacrylamide Polymers 0.000 claims description 2
- 229920001610 polycaprolactone Polymers 0.000 claims description 2
- 239000004632 polycaprolactone Substances 0.000 claims description 2
- 239000004417 polycarbonate Substances 0.000 claims description 2
- 229920000515 polycarbonate Polymers 0.000 claims description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 2
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- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 2
- 150000008163 sugars Chemical class 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 1
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- 238000009472 formulation Methods 0.000 abstract description 7
- 229920000642 polymer Polymers 0.000 description 35
- ZDZOTLJHXYCWBA-VCVYQWHSSA-N N-debenzoyl-N-(tert-butoxycarbonyl)-10-deacetyltaxol Chemical compound O([C@H]1[C@H]2[C@@](C([C@H](O)C3=C(C)[C@@H](OC(=O)[C@H](O)[C@@H](NC(=O)OC(C)(C)C)C=4C=CC=CC=4)C[C@]1(O)C3(C)C)=O)(C)[C@@H](O)C[C@H]1OC[C@]12OC(=O)C)C(=O)C1=CC=CC=C1 ZDZOTLJHXYCWBA-VCVYQWHSSA-N 0.000 description 17
- 229960003668 docetaxel Drugs 0.000 description 17
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
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- 230000000052 comparative effect Effects 0.000 description 7
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 6
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- 238000001556 precipitation Methods 0.000 description 6
- FBPFZTCFMRRESA-KVTDHHQDSA-N D-Mannitol Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-KVTDHHQDSA-N 0.000 description 5
- 229930195725 Mannitol Natural products 0.000 description 5
- 239000000594 mannitol Substances 0.000 description 5
- 235000010355 mannitol Nutrition 0.000 description 5
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- 239000000047 product Substances 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- RCINICONZNJXQF-MZXODVADSA-N taxol Chemical compound O([C@@H]1[C@@]2(C[C@@H](C(C)=C(C2(C)C)[C@H](C([C@]2(C)[C@@H](O)C[C@H]3OC[C@]3([C@H]21)OC(C)=O)=O)OC(=O)C)OC(=O)[C@H](O)[C@@H](NC(=O)C=1C=CC=CC=1)C=1C=CC=CC=1)O)C(=O)C1=CC=CC=C1 RCINICONZNJXQF-MZXODVADSA-N 0.000 description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 4
- 229930012538 Paclitaxel Natural products 0.000 description 4
- 239000002246 antineoplastic agent Substances 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 229960001592 paclitaxel Drugs 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- 239000002671 adjuvant Substances 0.000 description 3
- 229920002988 biodegradable polymer Polymers 0.000 description 3
- 239000004621 biodegradable polymer Substances 0.000 description 3
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- TYLVGQKNNUHXIP-MHHARFCSSA-N 10-deacetyltaxol Chemical compound O([C@H]1[C@H]2[C@@](C([C@H](O)C3=C(C)[C@@H](OC(=O)[C@H](O)[C@@H](NC(=O)C=4C=CC=CC=4)C=4C=CC=CC=4)C[C@]1(O)C3(C)C)=O)(C)[C@@H](O)C[C@H]1OC[C@]12OC(=O)C)C(=O)C1=CC=CC=C1 TYLVGQKNNUHXIP-MHHARFCSSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
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- 229940123237 Taxane Drugs 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
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- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- OWEGMIWEEQEYGQ-UHFFFAOYSA-N 100676-05-9 Natural products OC1C(O)C(O)C(CO)OC1OCC1C(O)C(O)C(O)C(OC2C(OC(O)C(O)C2O)CO)O1 OWEGMIWEEQEYGQ-UHFFFAOYSA-N 0.000 description 1
- GUBGYTABKSRVRQ-XLOQQCSPSA-N Alpha-Lactose Chemical compound O[C@@H]1[C@@H](O)[C@@H](O)[C@@H](CO)O[C@H]1O[C@@H]1[C@@H](CO)O[C@H](O)[C@H](O)[C@H]1O GUBGYTABKSRVRQ-XLOQQCSPSA-N 0.000 description 1
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 1
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 description 1
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
- HDTRYLNUVZCQOY-WSWWMNSNSA-N Trehalose Natural products O[C@@H]1[C@@H](O)[C@@H](O)[C@@H](CO)O[C@@H]1O[C@@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 HDTRYLNUVZCQOY-WSWWMNSNSA-N 0.000 description 1
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- 229960001573 cabazitaxel Drugs 0.000 description 1
- BMQGVNUXMIRLCK-OAGWZNDDSA-N cabazitaxel Chemical compound O([C@H]1[C@@H]2[C@]3(OC(C)=O)CO[C@@H]3C[C@@H]([C@]2(C(=O)[C@H](OC)C2=C(C)[C@@H](OC(=O)[C@H](O)[C@@H](NC(=O)OC(C)(C)C)C=3C=CC=CC=3)C[C@]1(O)C2(C)C)C)OC)C(=O)C1=CC=CC=C1 BMQGVNUXMIRLCK-OAGWZNDDSA-N 0.000 description 1
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- 239000012528 membrane Substances 0.000 description 1
- HEBKCHPVOIAQTA-UHFFFAOYSA-N meso ribitol Natural products OCC(O)C(O)C(O)CO HEBKCHPVOIAQTA-UHFFFAOYSA-N 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
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- 239000003960 organic solvent Substances 0.000 description 1
- 229940094443 oxytocics prostaglandins Drugs 0.000 description 1
- 229920001308 poly(aminoacid) Polymers 0.000 description 1
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- 230000002035 prolonged effect Effects 0.000 description 1
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Classifications
-
- 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
-
- 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
-
- 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
- A61K9/0087—Galenical forms not covered by A61K9/02 - A61K9/7023
- A61K9/0092—Hollow drug-filled fibres, tubes of the core-shell type, coated fibres, coated rods, microtubules or nanotubes
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L101/00—Compositions of unspecified macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/04—Polyesters derived from hydroxycarboxylic acids, e.g. lactones
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y5/00—Nanobiotechnology or nanomedicine, e.g. protein engineering or drug delivery
Definitions
- the present invention relates to a method for preparing polymeric micellar nanoparticles, and more specifically, by preparing drug-containing nanoparticles under specific conditions using an amphiphilic block copolymer having a specific level of low molecular weight, physiological saline, etc.
- the present invention relates to a method for preparing polymeric micellar nanoparticles capable of providing a formulation that is rapidly reconstructed in an aqueous medium, has excellent stability and uniformity, and has a reduced content of related substances.
- a bioactive agent For a bioactive agent to achieve the desired therapeutic effect, an appropriate amount of the administered drug must be delivered into the body's target cells.
- a submicronic particulate drug delivery system using a biodegradable polymer is being studied, and representatively, a nanoparticle system and a polymeric micelle system using a biodegradable polymer, It has been reported as a technology to reduce side effects and improve efficacy by changing the body distribution of intravenously administered drugs. It is reported that this drug delivery system can control the release of a drug to a target organ, tissue or cell, has excellent biocompatibility, and improves the solubilization ability of a poorly soluble drug and the bioavailability of the drug.
- the polymer mainly used for the production of polymer nanoparticles or polymer micelles is a double block amphiphilic block copolymer (mPEG-PLA) composed of a hydrophilic block such as monomethoxypolyethylene glycol (mPEG) and a hydrophobic block such as polylactic acid (PLA).
- mPEG-PLA double block amphiphilic block copolymer
- mPEG-PLA double block amphiphilic block copolymer
- mPEG-PLA double block amphiphilic block copolymer
- mPEG-PLA double block amphiphilic block copolymer
- mPEG-PLA double block amphiphilic block copolymer
- mPEG-PLA double block amphiphilic block copolymer
- PLA polylactic acid
- docetaxel-containing formulations are unstable in aqueous solution, so the drug-polymer cake produced after freeze-drying is reconstructed in physiological saline at the time of use.
- the drug-polymer cake dissolves well in water. Reconstruction time of the drug is prolonged as the drug does not dissolve or unravel, which causes inconvenience during dispensing in actual clinical situations, and of course, the reproducibility of the drug effect is lowered because the cake injected into the reconstruction does not melt or unravel.
- the molecular weight of the polymer is reduced to reduce the reconstruction time, precipitation occurs during the manufacturing process, or the stability of nanoparticles containing the polymer is reduced to precipitate during storage or transportation, or achieve sufficient bioavailability when administered to a patient There is a risk that the quality of the product will be significantly lowered, such as difficult to do.
- An object of the present invention is to provide a method for preparing polymeric micellar nanoparticles capable of providing a formulation that is rapidly reconstructed in an aqueous medium such as physiological saline, has excellent stability and uniformity, and has a reduced content of related substances will be.
- One aspect of the present invention (1) mixing the active ingredient, an amphiphilic block copolymer having a number average molecular weight of 3,700 or less and a C 1 to C 5 alcohol; (2) removing C 1 to C 5 alcohol from the resultant of step (1); (3) adding the resultant of step (2) to an aqueous medium, and forming micelles at 20° C. or less; and (4) freeze-drying the resultant of step (3).
- a uniform drug-containing freeze-dried formulation with a shortened reconstruction time can be prepared, and when it is used in actual clinical practice, a uniform drug-containing polymer micelle solution can be quickly obtained, so that it can be easily prepared for use.
- the uniform drug-containing polymer micelle solution prepared in this way can achieve reproducible and reduced side effects when administered to a patient.
- the method for preparing the polymer micelle nanoparticles of the present invention comprises the steps of: (1) mixing an active ingredient, an amphiphilic block copolymer having a number average molecular weight of 3,700 or less, and a C 1 to C 5 alcohol; (2) removing C 1 to C 5 alcohol from the resultant of step (1); (3) adding the resultant of step (2) to an aqueous medium, and forming micelles at 20° C. or less; and (4) freeze-drying the resultant of step (3).
- the “nanoparticles” may have a size (eg, particle size) of sub-microns, ie, less than 1 micrometer (eg, 10-900 nm, or 10-500 nm).
- amphiphilic block copolymer is capable of forming micelles in an aqueous solution, and may be used in the same sense as 'micelle polymer'.
- the amphiphilic block copolymer may be a type A-B double block copolymer or a B-A-B type triple block copolymer composed of a hydrophilic block (A) and a hydrophobic block (B).
- the content of the hydrophilic block of the amphiphilic block copolymer may be 20 to 95% by weight, more specifically 40 to 95% by weight, based on 100% by weight of the total copolymer.
- the content of the hydrophobic block of the amphiphilic block copolymer may be 5 to 80% by weight, more specifically 5 to 60% by weight, based on 100% by weight of the total copolymer.
- the hydrophilic block is a polymer having biocompatibility, specifically polyethylene glycol or a derivative thereof, polyvinylpyrrolidone, polyvinyl alcohol, polyacrylamide, and a combination thereof. As may include one selected from the group consisting of polyethylene glycol, monomethoxypolyethylene glycol, and combinations thereof.
- the hydrophobic block is a biodegradable polymer, and may be a polymer of an alpha ( ⁇ )-hydroxy acid-derived monomer, specifically polylactide, polyglycolide, poly(lactic-glycolide), polymandelic acid, Polycaprolactone, polydioxan-2-one, polyamino acids, polyorthoesters, polyanhydrides, polycarbonates, and may include those selected from the group consisting of combinations thereof, more specifically polylactide, It may include one selected from the group consisting of polyglycolide, poly(lactic-glycolide), and combinations thereof.
- alpha ( ⁇ )-hydroxy acid-derived monomer specifically polylactide, polyglycolide, poly(lactic-glycolide), polymandelic acid, Polycaprolactone, polydioxan-2-one, polyamino acids, polyorthoesters, polyanhydrides, polycarbonates, and may include those selected from the group consisting of combinations thereof, more specifically polylactide, It
- the number average molecular weight (unit: g/mol) of the amphiphilic block copolymer is 3,700 or less.
- the number average molecular weight of the amphiphilic block copolymer exceeds 3,700, the reconstruction time of the polymer micelle nanoparticles prepared using the same increases, and the content of related substances increases as the micellization temperature increases.
- the number average molecular weight of the amphiphilic block copolymer may be 3,700 or less, 3,600 or less, 3,550 or less, 3,500 or less, 3,450 or less, or 3,400 or less.
- the lower limit of the number average molecular weight of the amphiphilic block copolymer is not particularly limited, and may be, for example, 1,500 or more, 2,000 or more, 2,500 or more, 3,000 or more, or 3,300 or more, but is not limited thereto. If it exceeds the number average molecular weight range, the reconstruction time may increase, and if it is less than the molecular weight range, the ability to encapsulate the drug may decrease and precipitation may be accelerated.
- the C 1 to C 5 alcohol may be methanol, ethanol, isopropanol, or a mixture thereof.
- the alcohol may be in the form of an aqueous solution dissolved in water, or a mixture with an organic solvent such as acetone, tetrahydrofuran, acetic acid, acetonitrile, dioxane, and combinations thereof.
- the mixing of the active ingredient, the amphiphilic block copolymer and the alcohol in step (1) may be performed at a temperature of 40 ° C. to 70 ° C. for 1 hour to 6 hours.
- the removal of the C 1 to C 5 alcohol in step (2) may be performed at a temperature of 30° C. to less than 50° C. for a time of 2 hours or less.
- the removal of the alcohol may be performed at a temperature of 30°C to 45°C, or 32°C to 42°C, for a time of 30 minutes to 100 minutes, 40 minutes to 80 minutes, or 50 minutes to 70 minutes. . If the alcohol removal temperature is too high, there is a fear that related substances increase, and if it is too low, it may be difficult to sufficiently remove the alcohol.
- the C 1 to C 5 alcohol content in the resulting mixture (ie, the mixture before micelleation) from which the alcohol is removed may be 2.5 w/v% or less (ie, 0 to 2.5 w/v%), More specifically, it may be 2.0 w/v% or less, 1.5 w/v% or less, or 1.0 w/v% or less. If too much alcohol remains in the mixture before micelle formation, a phenomenon in which drugs or polymers are precipitated may occur.
- the aqueous medium used in step (3) may be selected from the group consisting of, for example, ordinary water, distilled water, distilled water for injection, physiological saline, 5% glucose, buffer, and combinations thereof.
- the present invention is not limited thereto.
- step (3) The formation of micelles in step (3) is performed at a temperature of 20° C. or less.
- the micellar formation temperature is higher than 20° C., the drug is rapidly precipitated upon reconstruction of the prepared polymeric micellar nanoparticles, thereby significantly reducing the stability of the formulation.
- the micellar formation temperature is 20 °C or less, 19 °C or less, 18 °C or less, 17 °C or less, 16 °C or less, 15 °C or less, 14 °C or less, 13 °C or less, 12 °C or less, 11 °C or less, or It may be 10° C. or less.
- the lower limit of the micelle formation temperature is not particularly limited, and may be, for example, 1°C or more, 2°C or more, 3°C or more, 4°C or more, or 5°C or more, but is not limited thereto.
- the formation of micelles in step (3) may be performed for 2 hours or more, 2.5 hours or more, 3 hours or more, or 3.5 hours or more.
- the upper limit of the micelle formation time is not particularly limited, and may be, for example, 8 hours or less, 7.5 hours or less, 7 hours or less, 6.5 hours or less, 5 hours or less, or 4 hours or less, but is not limited thereto. If the micellar formation time exceeds the above range, there is a possibility that drugs and polymers are decomposed in the aqueous phase, and if the time is less than the above range, the micelles may not be sufficiently formed because the temperature is limited.
- the forming of the micelles may include filtering the formed micelles.
- the filtration may be performed at 0 °C to 25 °C, 0 °C to 20 °C, or 0 °C to 15 °C using a 0.1 to 0.8 ⁇ m, 0.1 to 0.6 ⁇ m, or 0.2 to 0.5 ⁇ m filter. .
- the filtration may be repeated several times additionally according to each step or successively under different temperature conditions using different filters if necessary.
- the formed micelles may be maintained at 0° C. to 15° C. before subsequent freeze-drying, and may be freeze-dried within 3 hours. More specifically, the formed micelles may be maintained at 0° C. to 12° C., or 0° C. to 10° C. until freeze-drying, and within 10 minutes to 3 hours, within 30 minutes to 3 hours, or within 1 hour to 3 hours. It can be applied to the freeze-drying step.
- the formed micelles can be directly subjected to a freeze-drying step without storage.
- the above “maintenance” may be used in the same meaning as storage.
- the freeze-drying in step (4) may be performed in the presence of a freeze-drying auxiliary (also referred to as a freeze-drying agent).
- a freeze-drying auxiliary also referred to as a freeze-drying agent
- the freeze-drying aid 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
- the sugar alcohol may be at least one selected from the group consisting of mannitol, sorbitol, maltitol, xylitol and lactitol, preferably may be mannitol.
- the freeze-drying adjuvant is added to allow the freeze-dried composition to retain its cake form.
- the freeze-drying adjuvant after freeze-drying of the polymer nanoparticle composition, serves to help the polymer nanoparticle composition to be uniformly dissolved within a short time in the process of reconstitution.
- the content of the freeze-drying adjuvant may be 1 to 20 parts by weight, 2 to 18 parts by weight, 3 to 15 parts by weight, or 5 to 10 parts by weight based on 1 part by weight of the active ingredient.
- secondary drying for removing residual moisture in the freeze-dried product may be additionally performed.
- the secondary drying may be performed following freeze-drying in a freeze-drying apparatus in which freeze-drying in step (4) is performed, or alternatively, freeze-drying in step (4) is After performing, the freeze-dried product may be transferred to a separate device and performed.
- the secondary drying may be performed at a temperature of 31° C. or less. If the secondary drying temperature is excessively higher than the above level, the polymer melts and becomes sticky in the prepared cake, thereby prolonging the rebuilding time of the polymer micelle nanoparticles.
- the lower limit of the secondary drying temperature there is no particular limitation on the lower limit of the secondary drying temperature, and for example, it may be carried out at a temperature of 10 °C or higher, 15 °C or higher, 18 °C or higher, or 21 °C or higher, but is not limited thereto.
- the moisture content of the polymer micelle nanoparticles may be 5,000 ppm or less, 4,000 ppm or less, 3,000 ppm or less, 2,000 ppm or less, or 1,000 ppm or less, and the lower limit is 300 ppm or more, 400 ppm or more, or 500 ppm or more. It may be performed as much as possible.
- the active ingredient may be a poorly water-soluble drug.
- the poorly water-soluble drug may be selected from drugs having a solubility in water (25° C. of 100 mg/mL or less).
- drugs having a solubility in water 25° C. of 100 mg/mL or less.
- the poorly water-soluble drug may be selected from anticancer drugs, specifically, may be a taxane anticancer drug.
- the taxane anticancer agent is, for example, paclitaxel (paclitaxel), docetaxel (docetaxel), 7-epipaclitaxel (7-epipaclitaxel), t- acetyl paclitaxel (tacetylpaclitaxel), 10-desacetyl paclitaxel (10-desacetylpaclitaxel), 10- Desacetyl-7-epipaclitaxel (10-desacetyl-7-epipaclitaxel), 7-xylosylpaclitaxel (7-xylosylpaclitaxel), 10-desacetyl-7-glutarylpaclitaxel (10-desacetyl-7-glutarylpaclitaxel), It may be at least one selected from the group consisting of 7-N,N-dimethylglycylpaclitaxel, 7-
- the nanoparticles prepared according to the present invention may have a rebuild time in an aqueous solution within 5 minutes, within 4 minutes, or within 3 minutes.
- the reconstruction time may be measured by a commonly known method, for example, by stirring the nanoparticles as a freeze-dried product in an aqueous solution at 400 to 600 rpm at room temperature to measure the time until a transparent solution is obtained.
- the nanoparticles prepared according to the present invention may have a drug precipitation time of 4 hours or more, 6 hours or more, 8 hours or more, or 10 hours or more after making the preparation solution.
- the precipitation time can be measured by a commonly known method, for example, the time until the solution becomes turbid or a precipitate is observed when the nanoparticles are dissolved in an aqueous solution to make a transparent solution and then left at room temperature. have.
- Example 1 Preparation of polymer micelles containing docetaxel 1
- mannitol As a freeze-drying agent, 8.5 g of mannitol was completely dissolved in physiological saline and refrigerated, and then mixed with the resulting polymer micelles. Thereafter, the resultant was filtered using a filter having a pore size of 0.22 ⁇ m, and then lyophilized to prepare a polymer micelle composition containing docetaxel in powder form.
- the docetaxel content per vial was 80 mg
- the mPEG-PDLLA content was 1529 mg
- the mannitol content was 400 mg.
- Example 2 The freeze-dried product prepared in the same manner as in Example 1 was subjected to secondary drying under the conditions shown in Table 2 below to prepare a polymer micelle composition containing docetaxel in powder form.
- Test Example 1 Reconstruction time and precipitation time comparison experiment
- Test Example 2 Comparative experiment on the content of related substances
- a sample solution was prepared by mixing 1 mL of a filtrate obtained by filtering the docetaxel-containing polymeric micelles of Examples 1 to 4 and Comparative Examples 1 to 3 with a 0.45 ⁇ m membrane filter paper with 4 mL of a HPLC mobile phase solution.
- the prepared sample solution was analyzed by HPLC under the following conditions to compare the content of related substances, and the content (%) of the related substances is shown in Table 4 below.
- UV absorbance spectrometer (measurement wavelength 232nm)
- the drug-containing nanoparticles of Examples prepared according to the present invention are rapidly rebuilt in an aqueous medium such as physiological saline, compared to the nanoparticles of Comparative Example, and at the same time have excellent stability and uniformity, , a formulation with a reduced content of related substances was provided.
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Abstract
Description
Claims (7)
- (1) 유효 성분, 수평균 분자량 3,700 이하의 양친성 블록 공중합체 및 C1 내지 C5 알코올을 혼합하는 단계;(2) 상기 (1)단계의 결과물로부터 C1 내지 C5 알코올을 제거하는 단계;(3) 상기 (2)단계의 결과물을 수성 매질에 투입하고, 20℃ 이하에서 미셀을 형성하는 단계; 및(4) 상기 (3)단계의 결과물을 동결건조하는 단계;를 포함하는,고분자 미셀 나노입자의 제조 방법.
- 제1항에 있어서, 상기 (4) 단계에서의 동결건조가 동결건조 보조제의 존재하에 수행되는, 고분자 미셀 나노입자의 제조 방법.
- 제2항에 있어서, 상기 동결건조 보조제가 당, 당알코올 및 이들의 혼합물로 이루어진 그룹으로부터 선택되는, 고분자 미셀 나노입자의 제조 방법.
- 제1항에 있어서, 상기 (4) 단계의 동결 건조 이후에, 동결 건조물 내의 잔류 수분 제거를 위한 2차 건조가 추가로 수행되는, 고분자 미셀 나노입자의 제조 방법.
- 제4항에 있어서, 상기 2차 건조가 31℃ 이하의 온도에서 수행되는, 고분자 미셀 나노입자의 제조 방법.
- 제1항 내지 제5항 중 어느 한 항에 있어서, 상기 양친성 블록 공중합체가, 폴리에틸렌글리콜 또는 그의 유도체, 폴리비닐피롤리돈, 폴리비닐알콜, 폴리아크릴아미드 및 이들의 조합으로 이루어진 군에서 선택된 친수성 블록(A); 및 폴리락타이드, 폴리글리콜라이드, 폴리(락틱-글리콜라이드), 폴리만델릭산, 폴리카프로락톤, 폴리디옥산-2-온, 폴리아미노산, 폴리오르소에스터, 폴리언하이드라이드, 폴리카보네이트 및 이들의 조합으로 이루어진 군에서 선택된 소수성 블록(B)를 포함하는 것인, 고분자 미셀 나노입자의 제조 방법.
- 제1항 내지 제5항 중 어느 한 항에 있어서, 상기 유효 성분이 수난용성 약물인, 고분자 미셀 나노입자의 제조 방법.
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