EP2477593A1 - Procédé pour produire des préparations de substances peu solubles dans l'eau - Google Patents

Procédé pour produire des préparations de substances peu solubles dans l'eau

Info

Publication number
EP2477593A1
EP2477593A1 EP10752340A EP10752340A EP2477593A1 EP 2477593 A1 EP2477593 A1 EP 2477593A1 EP 10752340 A EP10752340 A EP 10752340A EP 10752340 A EP10752340 A EP 10752340A EP 2477593 A1 EP2477593 A1 EP 2477593A1
Authority
EP
European Patent Office
Prior art keywords
preparations
melt
copolymers
weight
copolymer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP10752340A
Other languages
German (de)
English (en)
Inventor
Karl Kolter
Dejan Djuric
Stefan Fischer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BASF SE
Original Assignee
BASF SE
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BASF SE filed Critical BASF SE
Priority to EP10752340A priority Critical patent/EP2477593A1/fr
Publication of EP2477593A1 publication Critical patent/EP2477593A1/fr
Withdrawn legal-status Critical Current

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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
    • C08J3/20—Compounding polymers with additives, e.g. colouring
    • C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
    • C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
    • 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
    • A61K9/20—Pills, tablets, discs, rods
    • A61K9/2095—Tabletting processes; Dosage units made by direct compression of powders or specially processed granules, by eliminating solvents, by melt-extrusion, by injection molding, by 3D printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0001—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor characterised by the choice of material
    • 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
    • C08J2451/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers

Definitions

  • the present invention relates to a process for the preparation of moldings for dosage forms based on preparations of sparingly water-soluble active ingredients in which the active ingredients are embedded in amphiphilic copolymers.
  • the embedding is carried out by extrusion and, preferably at temperatures above the melting point of the sparingly soluble in water substances, wherein the substances are present in the extruded preparation amorphous.
  • the embedding can also be achieved at temperatures below the melting point of the sparingly soluble active ingredient.
  • the corresponding copolymers are suitable as solubilizers for the sparingly soluble in water substances.
  • Solubilization is understood to mean the solubilization of substances which are soluble or insoluble in a particular solvent, in particular water, by surface-active compounds, the solubilizers. Such solubilizers are able to convert poorly water-soluble or water-insoluble substances in clear, at most opalescent aqueous solutions, without this undergoes a change in the chemical structure of these substances.
  • WO 2007/051743 discloses the use of water-soluble or water-dispersible copolymers of N-vinyllactam, vinyl acetate and polyethers as solubilizers for pharmaceutical, cosmetic, food-processing, agro-technical or other technical applications. This generally describes that the corresponding graft polymers can also be processed in the melt with the active ingredients.
  • the object of the present invention was to enable an improved process for processing heavy water-soluble active ingredients in a formulation having improved solubility to shaped articles. Accordingly, a process for the production of moldings from preparations of sparingly soluble in water active ingredients, wherein the active ingredients are embedded in amphiphilic copolymers, found, which is characterized in that the shaping of the preparations by injection molding a melt of the preparations is carried out, wherein the Mold temperature of the melt is 40 to 180 ° C.
  • Copolymers of polyethers, N-vinyl monomers and other vinyl monomers are particularly suitable as amphiphilic copolymers.
  • Copolymers obtained by polymerization of vinyl acetate and N-vinyl lactams in the presence of a polyether are particularly suitable.
  • Corresponding copolymers are obtained by free-radically initiated polymerization of a mixture of i) 30 to 80% by weight of N-vinyllactam,
  • preferred copolymers obtained from: i) 30 to 70% by weight of N-vinyllactam
  • Copolymers particularly preferably used are obtainable from: i) 40 to 60% by weight of N-vinyllactam
  • Very particularly preferably used copolymers are obtainable from i) 50 to 60 wt .-% N-vinyl lactam
  • N-vinyllactam are N-vinylcaprolactam or N-vinylpyrrolidone or mixtures thereof. Preference is given to using N-vinylcaprolactam.
  • the graft is polyether.
  • Suitable polyethers are preferably polyalkylene glycols.
  • the polyalkylene glycols may have molecular weights of 1000 to 100000 Da [Dalton], preferably 1500 to 35000 Da, more preferably 1500 to 10000 Da. The molecular weights are determined on the basis of the measured according to DIN 53240 OH number.
  • Particularly preferred polyalkylene glycols are polyethylene glycols.
  • Also suitable are polypropylene glycols, polytetrahydrofurans or polybutylene glycols obtained from 2-ethyloxirane or 2,3-dimethyloxirane.
  • Suitable polyethers are also random or block copolymers of polyalkylene glycols obtained from ethylene oxide, propylene oxide and butylene oxides, such as, for example, polyethylene glycol-polypropylene glycol block copolymers.
  • the block copolymers may be of the AB or ABA type.
  • the preferred polyalkylene glycols also include those which are alkylated at one or both OH end groups.
  • Suitable alkyl radicals are branched or unbranched C to C22-alkyl radicals, preferably C 1 -C 6 -alkyl radicals, for example methyl, ethyl, n-butyl, isobutyl, pentyl, hexyl, octyl, nonyl, decyl , Dodecyl, tridecyl or octadecyl radicals.
  • General processes for the preparation of the copolymers used according to the invention are known per se.
  • the preparation is carried out by free radical-initiated polymerization, preferably in solution, in non-aqueous, organic solvents or in mixed nonaqueous / aqueous solvents.
  • Suitable production processes are described, for example, in WO 2007/051743 and WO 2009/013202, to the disclosure of which reference is explicitly made to the preparation process.
  • the process is characterized in that a preparation of amphiphilic copolymers with sparingly soluble active ingredients is used for the injection molding process.
  • the mixture can be converted into suitable vessels by heating in a melt ü-. This can also be done in a tempered storage vessel for the injection molding apparatus, so that the required injection temperature is ensured.
  • the temperature of the storage vessel may be 60 to 260, preferably 90 to 200 ° C.
  • the melt can be transferred or injected under pressure into a suitable injection mold.
  • the mold temperature may be 40 to 180 ° C, preferably 70 to 140 ° C. , After the injection process, the mold must now be cooled so that the injection-molded molding can be removed from the injection mold.
  • the injection molds can be designed differently. It can be moldings injection molding, the tablet form possess. Thus, solid dosage forms are accessible via the injection molding process which require no further process step, such as tabletting.
  • the shaped bodies can be cylindrical, lenticular, diamond-shaped, triangular, quadrangular, polygonal, ellipsoidal, oval, oval with double radii, square, pillow-shaped, cartridge-shaped, arrow-shaped, barrel-shaped, almond-shaped, shield-shaped, crescent-shaped, heart-shaped, waisted or in combinations of these forms be designed. Furthermore, fracture notches can also be introduced into the corresponding shaped body by the injection mold.
  • the polymer melt can be produced by means of a melt extruder.
  • Single-screw extruders as well as twin-screw extruders can be used for this purpose.
  • the polymer or the polymer / active substance mixture in powdered form is metered into the extruder via suitable metering devices.
  • the powder mixture is drawn from the screws into the extruder.
  • the mixture of the components is melted.
  • the melt then passes into the storage vessel of an injection molding apparatus.
  • the temperature in the extruder barrel is increased after passage of the draw-in cylinder until the optimum extrusion temperature is determined.
  • the extrusion temperature is equal to the temperature of the storage vessel and the Spritzappara- so that the melt has consistent properties during the process.
  • Suitable temperature ranges are 60 to 260 ° C, preferably 90 to 200 ° C.
  • the incorporation of poorly soluble active ingredients in the amphiphilic polymer during injection molding has the advantage that, as in the usual extrusion process, the sparingly soluble active substance is present amorphously or firmly dissolved in the resulting matrix. Further processing into the final tablet by means of injection molding makes the process a fully continuous production process.
  • the preparations may be in addition to the active ingredients e.g. Polymers for adjusting the glass transition temperature and the melt viscosity, disintegrants, other solubilizers, plasticizers, dyes, flavorings, sweeteners, stabilizers such as antioxidants, preservatives or wetting agents.
  • the addition of crystallization-inhibiting substances such as Kollidon 30 can increase the stability of the solid solutions.
  • surfactants which reduce the melt viscosity and thus the extrusion temperature can also be incorporated into the formulations. These substances can also positively influence the possible crystallization. Suitable substances are, for example, Solutol HS 15, Tween 80, Cremophor RH40, docusate sodium or sodium lauryl sulfate.
  • the moldings obtained by the process according to the invention can in principle be used in all fields in which only sparingly soluble or insoluble active substances in water are to be used either in aqueous preparations or to develop their effect in an aqueous medium.
  • the term "sparingly soluble in water” also encompasses practically insoluble substances and means that a solution of the substance in water requires at least 30 to 100 g of water per g of substance at 20 ° C. In the case of practically insoluble substances, at least 10,000 g of water per g substance needed.
  • substances which are sparingly soluble in water are preferably understood to mean biologically active substances such as pharmaceutical active substances for humans and animals, cosmetic or agrochemical active substances or dietary supplements or dietary active substances.
  • Also suitable as the sparingly soluble substances to be solubilized are also dyes such as inorganic or organic pigments.
  • Suitable biologically active substances according to the invention are, in principle, all solid active compounds which have a melting point which is below the decomposition point under extrusion conditions of the copolymers.
  • the copolymers can generally be extruded at temperatures up to 260 ° C. The temperature The limit depends on the composition of the mixtures to be extruded and the particular sparingly soluble substances to be processed.
  • the pharmaceutical active ingredients used are water-insoluble or sparingly soluble substances. According to DAB 9 (German Pharmacopoeia), the classification of the solubility of active pharmaceutical ingredients is as follows: sparingly soluble (soluble in 30 to 100 parts of solvent); poorly soluble (soluble in 100 to 1000 parts of solvent); practically insoluble (soluble in more than 10,000 parts solvent).
  • the active ingredients can come from any indication.
  • Examples include benzodiazepines, antihypertensives, vitamins, cytostatic drugs - especially taxol, anesthetics, neuroleptics, antidepressants, antiviral agents such as anti-HIV agents, antibiotics, antimycotics, anti-dementia, fungicides, chemotherapeutics, urologics, antiplatelet agents, sulfonamides, anticonvulsants, Hormones, immunoglobulins, serums, thyroid therapeutics, psychotropic drugs, Parkinson's and other antihyperkinetics, ophthalmics, neuropathy preparations, calcium metabolism regulators, muscle relaxants, anesthetics, lipid-lowering agents, liver therapeutics, coronary agents, cardiacs, immunotherapeutics, regulatory peptides and their inhibitors, hypnotics, sedatives, gynecologics, gout remedies , Fibrinolytics, enzyme preparations and transport proteins, enzyme inhibitors, emetics, circulation-promoting agents, di
  • Particularly preferred of the abovementioned pharmaceutical preparations are those which are orally administrable formulations.
  • the content of amphiphilic copolymer in the pharmaceutical preparation is, depending on the active ingredient, in the range of 1 to 75 wt .-%, preferably 5 to 60 wt .-%, particularly preferably 5 to 50 wt .-%.
  • Another particularly preferred embodiment relates to pharmaceutical preparations in which the active ingredients and the copolymer are present as a solid solution.
  • the removal of the solvent and the incorporation of the active substance can take place in one process step.
  • the weight ratio of copolymer to active ingredient is preferably from 1: 1 to 4: 1, but may be up to 100: 1, in particular up to 15: 1. It only matters that when used in the finished dosage form on the one hand an effective amount of active ingredient in the drug form is included, and on the other hand, in oral dosage forms, the forms are not too large.
  • the shaped bodies according to the invention are also suitable for use in the food industry, for example for the incorporation of poorly water-soluble or water-insoluble nutrients, auxiliaries or additives, such as fat-soluble vitamins or carotenoids. Examples include drinks colored with carotenoids.
  • Formulations containing pesticides, herbicides, fungicides or insecticides include, in particular, those preparations of pesticides used as spraying or pouring broths.
  • Solid solutions according to the invention are systems in which no crystalline components of the sparingly soluble substance are observed.
  • Visual examination of the stable solid solutions reveals no amorphous constituents.
  • the visual inspection can be done with a light microscope both with and without a polarizing filter at 40x magnification.
  • the preparations can also be examined for crystallinity or morphogenicity using XRD (X-ray diffraction) and DSC (Differential Scanning Calorimetry).
  • the preparations obtained by the process according to the invention are amorphous, which means that the crystalline proportions of the biologically active substance are less than 5% by weight.
  • the amorphous state is checked by DSC or XRD.
  • Such an amorphous state may also be referred to as an amorphous state.
  • the process of the invention allows the production of stable preparations with high drug loading and good stability with respect to the amorphous state of the sparingly soluble substance.
  • the K value was 36 measured 1 wt .-% in ethanol.
  • the twin-screw extruder was operated at 50 rpm without operating the bypass option.
  • the injection pressure of the injection molding unit was kept constant at 8 bar.
  • the mold was always cooled to room temperature before the molding was removed.
  • the injection mold was designed to give cylindrical moldings: 4cm diameter, average thickness 3mm.
  • the moldings produced were examined for crystallinity or amorphicity using XRD and DSC using the following equipment and conditions:
  • Measuring instrument Diffractometer D 8 Advance with 9-fold sample changer (Fa.Bruker / AXS) Type of measurement: ⁇ - ⁇ Geometry in reflection
  • the drug release was measured according to USP (paddle method) 2, 37 ° C, 50 rpm (BTWS 600, Pharmatest).
  • the detection of the released active ingredient was carried out by UV spectroscopy (Lamda-2, Perkin Elmer).
  • Example 1 10 g of polymer and 4 g of cinnarizine (melting point 122 ° C.) were premixed manually with a mortar and pestle. The mixture was processed according to the following parameters:
  • the moldings were examined by XRD and by DSC and found to be amorphous.
  • the finished molded parts were also used without further preparation for the release. After 1 h in 0.1 normal HCl, 100% active ingredient was released.
  • Example 2 10g of polymer and 4g of fenofibrate (melting point 81 ° C) were manually premixed with mortar and pestle.
  • the mixture was processed according to the following parameters:
  • the moldings were examined by XRD and by DSC and found to be amorphous.
  • the finished molded parts were also used without further preparation for the release. After 1 h in demineralized water, 95% active substance was released.
  • Example 3 10g of polymer and 4g of itraconazole (mp 166 ° C) and 2g of Lutrol F68 were manually premixed with mortar and pestle.
  • the mixture was processed according to the following parameters:
  • Mold temperature 130 ° C
  • the moldings were examined by XRD and by DSC and found to be amorphous.
  • the finished moldings were also used without further preparation for release. After 0.5 h in 0.1 normal HCl, 40% active ingredient was released.
  • Example 4 8g of polymer and 3g of danazol (mp 225 ° C) and 2g of sodium lauryl sulfate were manually premixed with mortar and pestle.
  • the mixture was processed according to the following parameters:
  • the moldings were examined by XRD and by DSC and found to be amorphous.
  • the finished moldings were also used without further preparation for release. After 0.5 h in phosphate buffer pH 7 50% active ingredient was released.
  • Example 5 10g of polymer and 5g carbamazepine (mp 192 ° C) and 5g PEG 1500 were manually premixed with mortar and pestle.
  • the mixture was processed according to the following parameters:
  • the moldings were examined by XRD and by DSC and found to be amorphous. The finished moldings were also used without further preparation for release. After 1 h in 0.1 normal HCl, 73% active ingredient was released.
  • Example 6 10 g of polymer and 3 g of clotrimazole (melting point 145 ° C) were manually premixed with mortar and pestle. The mixture was processed according to the following parameters:
  • the moldings were examined by XRD and by DSC and found to be amorphous.
  • the finished molded parts were also used without further preparation for the release. After 1 h in demineralized water, 65% active substance was released.
  • Example 7 12g of polymer and 4.5g of piroxicam (mp 199 ° C) were manually premixed with mortar and pestle.
  • the mixture was processed according to the following parameters:
  • the moldings were examined by XRD and by DSC and found to be amorphous.
  • the finished moldings were also used without further preparation for release. After 0.5 h in acetate buffer pH 4.5 55% active ingredient were released.

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  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Epidemiology (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Polymers & Plastics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Medicinal Preparation (AREA)
  • Cosmetics (AREA)

Abstract

L'invention concerne un procédé de production de corps moulés à partir de préparations de substances actives peu solubles dans l'eau, lesdites substances étant incorporées dans des copolymères amphiphiles, caractérisé en ce que le formage des préparations est effectué par moulage par injection desdites préparations en fusion, la température de formage de la matière en fusion étant de 40 à 180 °C.
EP10752340A 2009-09-18 2010-09-07 Procédé pour produire des préparations de substances peu solubles dans l'eau Withdrawn EP2477593A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10752340A EP2477593A1 (fr) 2009-09-18 2010-09-07 Procédé pour produire des préparations de substances peu solubles dans l'eau

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP09170695 2009-09-18
PCT/EP2010/063090 WO2011032860A1 (fr) 2009-09-18 2010-09-07 Procédé pour produire des préparations de substances peu solubles dans l'eau
EP10752340A EP2477593A1 (fr) 2009-09-18 2010-09-07 Procédé pour produire des préparations de substances peu solubles dans l'eau

Publications (1)

Publication Number Publication Date
EP2477593A1 true EP2477593A1 (fr) 2012-07-25

Family

ID=43034672

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10752340A Withdrawn EP2477593A1 (fr) 2009-09-18 2010-09-07 Procédé pour produire des préparations de substances peu solubles dans l'eau

Country Status (5)

Country Link
US (1) US20120168987A1 (fr)
EP (1) EP2477593A1 (fr)
JP (1) JP2013505210A (fr)
CN (1) CN102573755A (fr)
WO (1) WO2011032860A1 (fr)

Families Citing this family (5)

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Publication number Priority date Publication date Assignee Title
US9032390B2 (en) * 2008-07-29 2015-05-12 Qualcomm Incorporated Framework versioning
US8790703B2 (en) * 2009-03-31 2014-07-29 Basf Se Method for producing preparations of substances poorly soluble in water
US8636929B2 (en) 2010-05-21 2014-01-28 Basf Se Nanoporous foamed active compound-containing preparations based on pharmaceutically acceptable thermoplastically workable polymers
US10911936B2 (en) * 2016-10-07 2021-02-02 Nec Corporation SCEF entity, communication terminal, data processing method, data receiving method, and non-transitory computer readable medium
CN108623744B (zh) * 2018-06-01 2020-12-15 辽宁奥克医药辅料股份有限公司 共聚物、增溶剂及制备方法

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Also Published As

Publication number Publication date
JP2013505210A (ja) 2013-02-14
US20120168987A1 (en) 2012-07-05
WO2011032860A1 (fr) 2011-03-24
CN102573755A (zh) 2012-07-11

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