WO1996004893A1 - Composition permettant une liberation selective d'un principe actif - Google Patents
Composition permettant une liberation selective d'un principe actif Download PDFInfo
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- WO1996004893A1 WO1996004893A1 PCT/FR1995/001079 FR9501079W WO9604893A1 WO 1996004893 A1 WO1996004893 A1 WO 1996004893A1 FR 9501079 W FR9501079 W FR 9501079W WO 9604893 A1 WO9604893 A1 WO 9604893A1
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- 239000000203 mixture Substances 0.000 title claims abstract description 67
- 239000004480 active ingredient Substances 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 239000000463 material Substances 0.000 claims abstract description 38
- 239000003814 drug Substances 0.000 claims abstract description 13
- 230000008961 swelling Effects 0.000 claims abstract description 9
- 239000012736 aqueous medium Substances 0.000 claims abstract description 7
- 238000000576 coating method Methods 0.000 claims description 16
- 239000011248 coating agent Substances 0.000 claims description 15
- 210000001072 colon Anatomy 0.000 claims description 11
- 230000000694 effects Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 5
- 239000000470 constituent Substances 0.000 claims description 3
- 239000013013 elastic material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- OIGNJSKKLXVSLS-VWUMJDOOSA-N prednisolone Chemical compound O=C1C=C[C@]2(C)[C@H]3[C@@H](O)C[C@](C)([C@@](CC4)(O)C(=O)CO)[C@@H]4[C@@H]3CCC2=C1 OIGNJSKKLXVSLS-VWUMJDOOSA-N 0.000 claims description 2
- 229960005205 prednisolone Drugs 0.000 claims description 2
- 239000002195 soluble material Substances 0.000 claims description 2
- 201000010099 disease Diseases 0.000 claims 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 claims 1
- 229940079593 drug Drugs 0.000 abstract description 8
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 description 16
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 description 16
- 229920000642 polymer Polymers 0.000 description 16
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 description 15
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 description 15
- 239000003826 tablet Substances 0.000 description 15
- 239000008194 pharmaceutical composition Substances 0.000 description 12
- 239000002609 medium Substances 0.000 description 11
- 210000000056 organ Anatomy 0.000 description 10
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 description 8
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 8
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 description 8
- 229920000168 Microcrystalline cellulose Polymers 0.000 description 5
- 239000002775 capsule Substances 0.000 description 5
- 235000019813 microcrystalline cellulose Nutrition 0.000 description 5
- 239000008108 microcrystalline cellulose Substances 0.000 description 5
- 229940016286 microcrystalline cellulose Drugs 0.000 description 5
- 239000001856 Ethyl cellulose Substances 0.000 description 4
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- DOOTYTYQINUNNV-UHFFFAOYSA-N Triethyl citrate Chemical compound CCOC(=O)CC(O)(C(=O)OCC)CC(=O)OCC DOOTYTYQINUNNV-UHFFFAOYSA-N 0.000 description 4
- 239000008119 colloidal silica Substances 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 4
- 229960002380 dibutyl phthalate Drugs 0.000 description 4
- 239000002702 enteric coating Substances 0.000 description 4
- 238000009505 enteric coating Methods 0.000 description 4
- 235000019325 ethyl cellulose Nutrition 0.000 description 4
- 229920001249 ethyl cellulose Polymers 0.000 description 4
- 239000001863 hydroxypropyl cellulose Substances 0.000 description 4
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 description 4
- 235000019359 magnesium stearate Nutrition 0.000 description 4
- WVKSUFYQOHQCMM-YGZHYJPASA-N prednisolone sulfobenzoate Chemical compound O=C([C@@]1(O)CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)[C@@H](O)C[C@@]21C)COC(=O)C1=CC=CC(S(O)(=O)=O)=C1 WVKSUFYQOHQCMM-YGZHYJPASA-N 0.000 description 4
- 229950004954 prednisolone sulfobenzoate Drugs 0.000 description 4
- 238000006467 substitution reaction Methods 0.000 description 4
- 239000001069 triethyl citrate Substances 0.000 description 4
- VMYFZRTXGLUXMZ-UHFFFAOYSA-N triethyl citrate Natural products CCOC(=O)C(O)(C(=O)OCC)C(=O)OCC VMYFZRTXGLUXMZ-UHFFFAOYSA-N 0.000 description 4
- 235000013769 triethyl citrate Nutrition 0.000 description 4
- 229920003163 Eudragit® NE 30 D Polymers 0.000 description 3
- 229920003141 Eudragit® S 100 Polymers 0.000 description 3
- 238000013459 approach Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 210000001035 gastrointestinal tract Anatomy 0.000 description 3
- 239000012729 immediate-release (IR) formulation Substances 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 108090000790 Enzymes Proteins 0.000 description 2
- 102000004190 Enzymes Human genes 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 235000010980 cellulose Nutrition 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 230000002496 gastric effect Effects 0.000 description 2
- 210000000936 intestine Anatomy 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 229920000609 methyl cellulose Polymers 0.000 description 2
- 235000010981 methylcellulose Nutrition 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 239000000546 pharmaceutical excipient Substances 0.000 description 2
- 239000000902 placebo Substances 0.000 description 2
- 229940068196 placebo Drugs 0.000 description 2
- 229920000058 polyacrylate Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000000651 prodrug Substances 0.000 description 2
- 229940002612 prodrug Drugs 0.000 description 2
- 210000002784 stomach Anatomy 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 208000019399 Colonic disease Diseases 0.000 description 1
- 108090000371 Esterases Proteins 0.000 description 1
- 229920003134 Eudragit® polymer Polymers 0.000 description 1
- 230000000895 acaricidal effect Effects 0.000 description 1
- 239000000642 acaricide Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 239000003899 bactericide agent Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 239000003139 biocide Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000021152 breakfast Nutrition 0.000 description 1
- -1 color Substances 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000013270 controlled release Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000002552 dosage form Substances 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 230000000855 fungicidal effect Effects 0.000 description 1
- 239000000417 fungicide Substances 0.000 description 1
- 210000005095 gastrointestinal system Anatomy 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000010952 in-situ formation Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000002917 insecticide Substances 0.000 description 1
- 230000000968 intestinal effect Effects 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 239000003094 microcapsule Substances 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 229920005615 natural polymer Polymers 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229940075630 samarium oxide Drugs 0.000 description 1
- 229910001954 samarium oxide Inorganic materials 0.000 description 1
- FKTOIHSPIPYAPE-UHFFFAOYSA-N samarium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[Sm+3].[Sm+3] FKTOIHSPIPYAPE-UHFFFAOYSA-N 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000013268 sustained release Methods 0.000 description 1
- 239000012730 sustained-release form Substances 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- A61K9/0002—Galenical forms characterised by the drug release technique; Application systems commanded by energy
- A61K9/0004—Osmotic delivery systems; Sustained release driven by osmosis, thermal energy or gas
-
- 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
-
- 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
- A61K9/5073—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 having two or more different coatings optionally including drug-containing subcoatings
- A61K9/5078—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 having two or more different coatings optionally including drug-containing subcoatings with drug-free core
Definitions
- the subject of the present invention is a composition allowing a selective release of an active ingredient at a given site, and in particular a pharmaceutical composition allowing a selective release of the active ingredient at a target organ.
- the present invention more particularly relates to a pharmaceutical composition intended for oral administration, allowing selective release of the active principle in the colon.
- compositions have been developed with the aim of allowing controlled release of the active principle. These compositions are for the most part based on the principle of a delayed release or of a prolonged release of the drug at the level or not of a target organ.
- EP-A-0 250 374 describes coated mini dosing units.
- the core of the latter is obtained by compression of a mixture of the active principle with polymers swelling in water by an osmosis mechanism, the polymer coating surrounding the core controlling the release of the drug.
- EP-A-0 077 956 describes enteric microcapsules containing an active principle forming the nucleus which is surrounded by a coating consisting essentially of ethylcellulose and of an enteric polymeric material, a polymeric material swelling in water possibly being incorporated in the core.
- GB-A-2 202 143 describes a pharmaceutical composition
- a pharmaceutical composition comprising a water-insoluble drug, dispersed in a matrix consisting of microcrystalline cellulose and at least one cellulose derivative. Such a composition leads to the prolonged release of the active ingredient over a period of at least 8 hours.
- These compositions can be coated with an enteric coating so as to allow release of the drug into the intestinal tract rather than the stomach.
- the dosing units described in these documents do not allow immediate release of the active principle at a specific organ; its speed of release is limited by its speed of diffusion through the matrix surrounding it or trapping it which can have the consequence that the entire administered dose is not released at the target organ. Indeed, in the case of the gastrointestinal tract, the transit time varies from one individual to another in large measures, and the conditions prevailing in the gastrointestinal system, in particular the pH, also vary in wide measures.
- prodrug or "pro-drug” namely precursor of the active principle, according to which the active ingredient is linked to a glycosidic polymer for example (Friend, Phillips and Torzen, F Controlled Rel., 15, 47-54, (1991)).
- the main problem in this approach is that the drug itself is chemically modified and that the release of the active ingredient is conditioned by bacterial hydrolysis in situ.
- the pharmaceutical composition is designed so that the polymer coating dissolves at a pH greater than or equal to 7; the polymer dissolves in the intestine and the active ingredient is released at this level.
- the pH varies greatly from one individual to another.
- the enteric coating will remain intact and the active principle will not be released. It therefore appears clearly that a control of the release of the active principle based solely on the use of a coating which is degrading selectively at or before reaching the target organ does not allow targeted release of the drug at this level. latest.
- the object of the present invention is to eliminate the drawbacks of existing pharmaceutical compositions, namely non-selective and prolonged release, and to provide a composition allowing selective release of an active principle at a given site, and in particular a pharmaceutical composition allowing selective release of the active principle at a target organ, in particular the colon.
- the subject of the present invention is a composition
- a composition comprising, successively: (a) a core (1) made of a material swelling in water;
- This composition makes it possible to obtain a pharmaceutical composition, in particular intended for oral administration, allowing a selective release of an active principle at the level of a target organ.
- the material of the layer (4) is or becomes permeable to water; water enters the composition and reaches the nucleus (1).
- the core (1) inflates at a speed controlled by the elastic material (2), thus exerting a certain pressure on the outer layers. After a certain time, this pressure leads to the rupture of the layer (4) and to the contacting of the layer of active principle (3) with the surrounding medium, which leads to the immediate release of all of the active principle. Thanks to the layer (2) which lets water pass but which is substantially insoluble in water, the active principle cannot migrate into the nucleus. This avoids the in situ formation of a sustained release or delayed release dosage form; the drawbacks of the prior art are therefore avoided.
- the core (1) has an expansion in volume, from 50 to 700%, preferably 100 to 500%, more preferably from 150 to 300%.
- the relative proportions, by weight relative to the total weight of the composition, of the various constituent elements (1) to (4) are as follows:
- said polymeric material of the layer (4) comprises a polymeric material having a solubility from a pH value of 6.8.
- the material of the layer (4) is a gastro-resistant and enteric-soluble material.
- the active principle is prednisolone or one of its pharmaceutically acceptable derivatives.
- the layer (3) comprises 1 to 500 mg of active principle and preferably from 5 to 100 mg of active principle.
- the invention also relates to said composition for its use as a medicament.
- the use is use as a medicament for the treatment of colon diseases.
- the subject of the invention is also a process for preparing a composition according to the invention, comprising the following steps:
- ingredients of layers are supplied in a conventional manner, for example in powder form, in form dissolved in a suitable solvent, etc.
- composition according to the invention is in a conventional form, for example capsule, capsule, tablet, etc.
- This composition is particularly suitable for oral administration.
- the dose of active ingredient to be administered can be formulated either in the form of a single tablet, capsule or capsule or in the form of mini-dosage units which can be administered in one or more times, depending on the active ingredient. These mini-forms are advantageous for the implementation of one invention.
- Figure 1 shows a sectional view of a composition according to the invention
- FIG. 2 represents a graph giving the release profile for a composition according to the invention.
- the core and the layers are indicated respectively (1) to (4).
- the core (1) comprises a material which swells in the presence of water, but which is insoluble in water and preferably is a neutral polymeric material.
- Any known biocompatible and / or biodegradable polymeric material conventionally used can be incorporated into the composition according to the present invention.
- the core may optionally include any excipient conventionally used in the art.
- the layer (2) deposited on the core constitutes a barrier which prevents the migration of the active principle in the core and which controls the rate of expansion of the core.
- This layer is made of a material, preferably polymer, which lets the water present in the medium pass to the core, which is elastic and substantially insoluble in water.
- This material can for example be porous. All materials, polymers, copolymers and mixtures derived therefrom, having the above characteristics can be used.
- the polymer (2) has an elasticity defined as follows: capacity to double at least in volume, in contact with water at 37 ° C, without rupture of the peripheral film. Examples of compounds are: ethylcellulose plus hydroxypropylmethylcellulose, methylcellulose plus hydroxypropylmethylcellulose, Eudragit® NE30D, etc. It has also been demonstrated that a composition comprising at least one hydrophilic polymeric material and a plasticizing agent leads to a layer having elasticity important.
- the layer (3) comprises at least one active principle, alone or in admixture with excipients conventionally used in the pharmaceutical field or any other field depending on the end use of the active principle.
- the active ingredient can be a biocide, an acaricide, an insecticide, a bactericide, a fungicide, a drug, etc., and preferably a compound exhibiting pharmaceutical activity. Any compound having an activity, soluble or insoluble in water, can be used.
- the layer (3) can also consist of sublayers, for example containing different active ingredients, possibly separated by sublayers of suitable materials. In what follows, and for the sake of convenience and simplicity, reference will be made to a pharmaceutical composition obtained from a phar aceutically active principle.
- the layer (4) is made of a material which becomes permeable to water and which can break under the effect of the expansion of the core.
- material becoming permeable to water in a predetermined aqueous medium means that the material allows water to pass or is capable of allowing water to pass after exposure to this given medium.
- aqueous medium is used here according to classic acceptance of the term. For example, this material can become porous under the effect of its solubility in said medium or of its degradation under the conditions prevailing in said medium. This material is liable to rupture under the effect of the expansion of the core (1), once the water, after having passed through the layers (4), (3) and (2), has caused the swelling of the core (1).
- This layer (4) can be made of a material, preferably polymer, capable of being degraded or dissolved by an element present specifically immediately upstream from or at the given site where the release is to take place.
- this material can correspond to an enteric polymer which degrades or dissolves under the effect of a given pH, or can correspond to a polymer which is specifically degraded by a given enzyme, for example a pancreatic or intestinal enzyme such as 'an esterase.
- Any coating, preferably enteric, conventionally used in the pharmaceutical field can be used in the context of the invention.
- examples of compounds are: acrylic polymers such as Eudragit® in combination with a plasticizing agent, such as dibutylphthalate or triethyl citrate, etc. ..
- the core (1) and the layers (2) to (4) may optionally contain suitable additives known in the art, such as, for example, stabilizer, antioxidant, color, plasticizer, lubricant, preservative, flavor, compression agents, etc. .
- suitable additives such as, for example, stabilizer, antioxidant, color, plasticizer, lubricant, preservative, flavor, compression agents, etc.
- additional layers may be provided, such as for example an outer layer imparting an aroma and / or a color and / or improving the acceptability of the medicament and / or allowing labeling.
- the mechanism is as follows: in the presence of the appropriate aqueous surrounding medium, the material of the layer (4) lets water pass.
- the core (1) in the presence of water swells at a speed controlled by the polymer coating (2), exerting a certain pressure on the external layers. After a certain time, this pressure leads to the rupture of the layer (4) and to the contacting of the layer of active principle (3) with the medium. surrounding, which results in the immediate release of all of the active ingredient. Thanks to the layer (2) which allows water to pass through, but which is substantially insoluble in water, the active principle cannot migrate into the nucleus containing the active principle.
- the present composition allows, by a double control, namely a control of the expansion of the core (1) produced by the elastic layer (2) and a control of the place of degradation of the layer (4), to obtain a release.
- selective and immediate active ingredient (3) at a given site such as for example and preferably a target organ when the composition is preferably a pharmaceutical composition.
- composition of layers (1), (2) and (4) will be modified according to the speed of expansion of the core (1) which is required. It can be noted in particular that the more hydrophilic the materials, preferably polymers, (2) and (4), the greater the speed of penetration of water and the greater the speed of swelling of the core. Furthermore, the speed of release of the active principle can be controlled by the nature of the constituent of the core which offers a more or less strong expansion.
- the layer (4) may consist of an enteric coating (namely gastro-resistant and enteric-soluble) on which the solubility depends pH.
- enteric coating namely gastro-resistant and enteric-soluble
- the layer (4) will start to dissolve, which leads to the formation of pores allowing the penetration of the gastrointestinal fluid into the composition.
- the gastrointestinal fluid will cause swelling of the nucleus, the speed of expansion of the nucleus must then be controlled so that the rupture of the coating (4) only appears at the level of the colon.
- a tablet is prepared having the following characteristics:
- composition of layer (2) ethyl cellulose 3.00 mg hydroxypropyl methylcellulose 2.50 mg dibutyl phthalate 1.50 mg
- composition of layer (3) prednisolone metasulfobenzoate 31.43 mg hydroxypropyl methylcellulose 20.00 mg
- a tablet is prepared having the following characteristics:
- composition of layer (2) ethyl cellulose 3.00 mg hydroxypropyl methylcellulose 2.50 mg triethyl citrate 1.50 mg - composition of layer (3): prednisolone metasulfobenzoate 31.43 mg hydroxypropyl methylcellulose 20.00 mg - composition of the layer ( 4 ) :
- a tablet is prepared having the following characteristics:
- composition of layer (3) prednisolone metasulfobenzoate 31.43 mg hydroxypropyl methylcellulose 20.00 mg - composition of layer (4):
- Example 4 By conventional methods, a tablet is prepared having the following characteristics:
- composition of the layer (3) prednisolone metasulfobenzoate 31.43 mg hydroxypropyl methylcellulose 20.00 mg
- composition of the layer (4) hydroxypropyl methylcellulose 15.00 mg dibutyl phthalate 3.00 mg
- Example 5 An in vivo clinical study is carried out on six healthy volunteers (3 men, 3 women). Placebo tablets containing 2 mg of samarium oxide enriched in isotope Sm 153 are prepared, from the composition of Example 1, in which the active principle has been replaced by a cellulose derivative. Such tablets are administered to patients. Using a conventional scintigraphy technique, the anatomical position and the disintegration time of the tablet are determined.
- each subject After a light breakfast, each subject receives a tablet with 200 ml of water. The results are recorded periodically. Then each subject receives a light lunch and the recording is continued. The results are given in FIG. 2.
- This figure which indicates the times of arrival in the colon and the time of the initial disintegration of the tablet, clearly shows that the radiolabelled placebo disintegrates in the colon, which means that an active ingredient would be released selectively and immediately also in the colon.
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Pharmacology & Pharmacy (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Veterinary Medicine (AREA)
- Medicinal Preparation (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Plural Heterocyclic Compounds (AREA)
- Heterocyclic Compounds That Contain Two Or More Ring Oxygen Atoms (AREA)
- Heterocyclic Compounds Containing Sulfur Atoms (AREA)
- Furan Compounds (AREA)
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8507074A JPH10504300A (ja) | 1994-08-11 | 1995-08-11 | 有効成分の選択的放出を行う組成物 |
US08/776,797 US5824341A (en) | 1994-08-11 | 1995-08-11 | Composition providing selective release of an active ingredient |
AU31699/95A AU698240B2 (en) | 1994-08-11 | 1995-08-11 | Composition providing selective release of an active ingredient |
NZ290848A NZ290848A (en) | 1994-08-11 | 1995-08-11 | Selective medicament release composition comprises a core, resilient membrane, active ingredient and water-permeable material coating |
KR1019970700903A KR970704428A (ko) | 1994-08-11 | 1995-08-11 | 활성성분의 선택적 방출을 제공하는 합성물(composition providing selective release of an active ingredient) |
EP95927782A EP0774960A1 (fr) | 1994-08-11 | 1995-08-11 | Composition permettant une liberation selective d'un principe actif |
FI970530A FI970530A7 (fi) | 1994-08-11 | 1997-02-07 | Koostumus aktiivisen aineen selektiiviseksi vapauttamiseksi |
NO970610A NO970610L (no) | 1994-08-11 | 1997-02-10 | Sammensetning for selektiv frigjöring av en aktiv ingrediens |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9409963A FR2723536A1 (fr) | 1994-08-11 | 1994-08-11 | Composition permettant une liberation selective d'un principe actif |
FR94/09963 | 1994-08-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996004893A1 true WO1996004893A1 (fr) | 1996-02-22 |
Family
ID=9466272
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1995/001079 WO1996004893A1 (fr) | 1994-08-11 | 1995-08-11 | Composition permettant une liberation selective d'un principe actif |
Country Status (14)
Country | Link |
---|---|
US (1) | US5824341A (fr) |
EP (1) | EP0774960A1 (fr) |
JP (1) | JPH10504300A (fr) |
KR (1) | KR970704428A (fr) |
AU (1) | AU698240B2 (fr) |
CA (1) | CA2197234A1 (fr) |
CZ (1) | CZ41297A3 (fr) |
FI (1) | FI970530A7 (fr) |
FR (1) | FR2723536A1 (fr) |
HU (1) | HUT77387A (fr) |
NO (1) | NO970610L (fr) |
NZ (1) | NZ290848A (fr) |
PL (1) | PL318586A1 (fr) |
WO (1) | WO1996004893A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5840332A (en) * | 1996-01-18 | 1998-11-24 | Perio Products Ltd. | Gastrointestinal drug delivery system |
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FR2758459B1 (fr) * | 1997-01-17 | 1999-05-07 | Pharma Pass | Composition pharmaceutique de fenofibrate presentant une biodisponibilite elevee et son procede de preparation |
US6511477B2 (en) | 1997-03-13 | 2003-01-28 | Biocardia, Inc. | Method of drug delivery to interstitial regions of the myocardium |
US6322819B1 (en) * | 1998-10-21 | 2001-11-27 | Shire Laboratories, Inc. | Oral pulsed dose drug delivery system |
US6555139B2 (en) | 1999-06-28 | 2003-04-29 | Wockhardt Europe Limited | Preparation of micron-size pharmaceutical particles by microfluidization |
US6245913B1 (en) | 1999-06-30 | 2001-06-12 | Wockhardt Europe Limited | Synthetic procedure for 5-methoxy-2-[(4-methoxy-3,5-dimethyl-2-pyridinyl)-methylthio]-IH-benzimidazole hydrochloride and its conversion to omeprazole |
US20020131908A1 (en) * | 2000-01-13 | 2002-09-19 | George Benda | Selective release apparatus for fluids |
AR026148A1 (es) * | 2000-01-21 | 2003-01-29 | Osmotica Argentina S A | Dispositivo osmotico con pasaje preformado que aumenta de tamano |
US20030091634A1 (en) * | 2001-09-14 | 2003-05-15 | Pawan Seth | Delayed release tablet of venlafaxin |
US20030118647A1 (en) * | 2001-12-04 | 2003-06-26 | Pawan Seth | Extended release tablet of metformin |
US6913768B2 (en) * | 2002-09-24 | 2005-07-05 | Shire Laboratories, Inc. | Sustained release delivery of amphetamine salts |
US20040086567A1 (en) * | 2002-10-30 | 2004-05-06 | Pawan Seth | Bioequivalent composition of itraconazole and a hydrophilic polymer |
US20040162320A1 (en) * | 2003-02-14 | 2004-08-19 | Pawan Seth | Solid composition containing nisoldipine a mixture of polyethylene oxides and an antioxidant |
US20040249364A1 (en) * | 2003-06-03 | 2004-12-09 | Ilya Kaploun | Device and method for dispensing medication to tissue lining a body cavity |
US20060024362A1 (en) | 2004-07-29 | 2006-02-02 | Pawan Seth | Composition comprising a benzimidazole and process for its manufacture |
US8110226B2 (en) * | 2007-07-20 | 2012-02-07 | Mylan Pharmaceuticals Inc. | Drug formulations having inert sealed cores |
US20090036414A1 (en) * | 2007-08-02 | 2009-02-05 | Mutual Pharmaceutical Company, Inc. | Mesalamine Formulations |
CA2769760A1 (fr) | 2009-07-31 | 2011-02-03 | Ranbaxy Laboratories Limited | Compositions pharmaceutiques a unites multiples multi-couches |
US20140242158A1 (en) * | 2011-09-30 | 2014-08-28 | Astellas Pharma, Inc. | Granular Pharmaceutical Composition |
KR101384055B1 (ko) * | 2012-02-02 | 2014-04-14 | 한국원자력연구원 | 버스트형 지연 방출 제어 조성물 및 이의 제조방법 |
WO2017146053A1 (fr) * | 2016-02-23 | 2017-08-31 | ニプロ株式会社 | Particules de composition pharmaceutique et préparation se délitant par voie orale comprenant celles-ci |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0210540A1 (fr) * | 1985-07-19 | 1987-02-04 | Fujisawa Pharmaceutical Co., Ltd. | Systèmes d'explosion à retardement et procédé pour leur préparation |
DE3629994A1 (de) * | 1986-09-03 | 1988-03-17 | Weissenbacher Ernst Rainer Pro | Vorrichtung zur medikamentenapplikation in koerperhoehlen bzw. auf koerperoberflaechen |
EP0366621A1 (fr) * | 1988-10-20 | 1990-05-02 | BOEHRINGER INGELHEIM ITALIA S.p.A. | Préparations pharmaceutiques orales à délivrance sélective dans le colon |
WO1991014426A1 (fr) * | 1990-03-23 | 1991-10-03 | Alza Corporation | Forme galenique d'administration de medicament au niveau de l'intestin |
WO1992017165A1 (fr) * | 1991-03-26 | 1992-10-15 | Csl Limited | Systeme de vaccination par dose unique |
JPH04338323A (ja) * | 1991-05-15 | 1992-11-25 | Tanabe Seiyaku Co Ltd | 放出制御製剤およびその製造法 |
US5260069A (en) * | 1992-11-27 | 1993-11-09 | Anda Sr Pharmaceuticals Inc. | Pulsatile particles drug delivery system |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4968208A (en) * | 1986-12-09 | 1990-11-06 | Stig Eliasson | Transporting arrangement for transporting motor vehicles |
US5178868A (en) * | 1988-10-26 | 1993-01-12 | Kabi Pharmacia Aktiebolaq | Dosage form |
US5229131A (en) * | 1990-02-05 | 1993-07-20 | University Of Michigan | Pulsatile drug delivery system |
IE61651B1 (en) * | 1990-07-04 | 1994-11-16 | Zambon Spa | Programmed release oral solid pharmaceutical dosage form |
US5656296A (en) * | 1992-04-29 | 1997-08-12 | Warner-Lambert Company | Dual control sustained release drug delivery systems and methods for preparing same |
US5358502A (en) * | 1993-02-25 | 1994-10-25 | Pfizer Inc | PH-triggered osmotic bursting delivery devices |
DE4406424A1 (de) * | 1994-02-28 | 1995-08-31 | Bayer Ag | Expandierbare Arzneiformen |
US5536507A (en) * | 1994-06-24 | 1996-07-16 | Bristol-Myers Squibb Company | Colonic drug delivery system |
US5736159A (en) * | 1995-04-28 | 1998-04-07 | Andrx Pharmaceuticals, Inc. | Controlled release formulation for water insoluble drugs in which a passageway is formed in situ |
US5558879A (en) * | 1995-04-28 | 1996-09-24 | Andrx Pharmaceuticals, Inc. | Controlled release formulation for water soluble drugs in which a passageway is formed in situ |
-
1994
- 1994-08-11 FR FR9409963A patent/FR2723536A1/fr active Pending
-
1995
- 1995-08-11 US US08/776,797 patent/US5824341A/en not_active Expired - Fee Related
- 1995-08-11 KR KR1019970700903A patent/KR970704428A/ko not_active Withdrawn
- 1995-08-11 AU AU31699/95A patent/AU698240B2/en not_active Ceased
- 1995-08-11 HU HU9700399A patent/HUT77387A/hu unknown
- 1995-08-11 NZ NZ290848A patent/NZ290848A/en unknown
- 1995-08-11 EP EP95927782A patent/EP0774960A1/fr not_active Ceased
- 1995-08-11 JP JP8507074A patent/JPH10504300A/ja active Pending
- 1995-08-11 CA CA002197234A patent/CA2197234A1/fr not_active Abandoned
- 1995-08-11 WO PCT/FR1995/001079 patent/WO1996004893A1/fr not_active Application Discontinuation
- 1995-08-11 CZ CZ97412A patent/CZ41297A3/cs unknown
- 1995-08-11 PL PL95318586A patent/PL318586A1/xx unknown
-
1997
- 1997-02-07 FI FI970530A patent/FI970530A7/fi unknown
- 1997-02-10 NO NO970610A patent/NO970610L/no not_active Application Discontinuation
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0210540A1 (fr) * | 1985-07-19 | 1987-02-04 | Fujisawa Pharmaceutical Co., Ltd. | Systèmes d'explosion à retardement et procédé pour leur préparation |
DE3629994A1 (de) * | 1986-09-03 | 1988-03-17 | Weissenbacher Ernst Rainer Pro | Vorrichtung zur medikamentenapplikation in koerperhoehlen bzw. auf koerperoberflaechen |
EP0366621A1 (fr) * | 1988-10-20 | 1990-05-02 | BOEHRINGER INGELHEIM ITALIA S.p.A. | Préparations pharmaceutiques orales à délivrance sélective dans le colon |
WO1991014426A1 (fr) * | 1990-03-23 | 1991-10-03 | Alza Corporation | Forme galenique d'administration de medicament au niveau de l'intestin |
WO1992017165A1 (fr) * | 1991-03-26 | 1992-10-15 | Csl Limited | Systeme de vaccination par dose unique |
JPH04338323A (ja) * | 1991-05-15 | 1992-11-25 | Tanabe Seiyaku Co Ltd | 放出制御製剤およびその製造法 |
US5260069A (en) * | 1992-11-27 | 1993-11-09 | Anda Sr Pharmaceuticals Inc. | Pulsatile particles drug delivery system |
Non-Patent Citations (3)
Title |
---|
DATABASE WPI Section Ch Week 9302, Derwent World Patents Index; Class B04, AN 93-012137 * |
PATENT ABSTRACTS OF JAPAN vol. 17, no. 185 (C - 1047) 12 April 1993 (1993-04-12) * |
UEDA S. ET AL: "DEVELOPMENT OF A NOVEL DRUG RELEASE SYSTEM, TIME-CONTROLLED EXPLOSION SYSTEM (TES). II. DESIGN OF MULTIPARTICULATE TES AND IN VITRO DRUG RELEASE PROPERTIES", CHEM. & PHARM. BULL., vol. 42, TOKYO, pages 359 - 363, XP000441942 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5840332A (en) * | 1996-01-18 | 1998-11-24 | Perio Products Ltd. | Gastrointestinal drug delivery system |
Also Published As
Publication number | Publication date |
---|---|
FR2723536A1 (fr) | 1996-02-16 |
PL318586A1 (en) | 1997-06-23 |
NZ290848A (en) | 1998-03-25 |
NO970610L (no) | 1997-03-21 |
NO970610D0 (no) | 1997-02-10 |
FI970530A7 (fi) | 1997-04-08 |
US5824341A (en) | 1998-10-20 |
JPH10504300A (ja) | 1998-04-28 |
EP0774960A1 (fr) | 1997-05-28 |
KR970704428A (ko) | 1997-09-06 |
CZ41297A3 (cs) | 1998-05-13 |
AU698240B2 (en) | 1998-10-29 |
AU3169995A (en) | 1996-03-07 |
FI970530A0 (fi) | 1997-02-07 |
HUT77387A (hu) | 1998-04-28 |
CA2197234A1 (fr) | 1996-02-22 |
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