WO2010095537A1 - 経皮吸収製剤 - Google Patents
経皮吸収製剤 Download PDFInfo
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- WO2010095537A1 WO2010095537A1 PCT/JP2010/051853 JP2010051853W WO2010095537A1 WO 2010095537 A1 WO2010095537 A1 WO 2010095537A1 JP 2010051853 W JP2010051853 W JP 2010051853W WO 2010095537 A1 WO2010095537 A1 WO 2010095537A1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/70—Web, sheet or filament bases ; Films; Fibres of the matrix type containing drug
- A61K9/7023—Transdermal patches and similar drug-containing composite devices, e.g. cataplasms
- A61K9/703—Transdermal patches and similar drug-containing composite devices, e.g. cataplasms characterised by shape or structure; Details concerning release liner or backing; Refillable patches; User-activated patches
- A61K9/7084—Transdermal patches having a drug layer or reservoir, and one or more separate drug-free skin-adhesive layers, e.g. between drug reservoir and skin, or surrounding the drug reservoir; Liquid-filled reservoir patches
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/13—Amines
- A61K31/135—Amines having aromatic rings, e.g. ketamine, nortriptyline
- A61K31/138—Aryloxyalkylamines, e.g. propranolol, tamoxifen, phenoxybenzamine
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/30—Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
- A61K47/32—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. carbomers, poly(meth)acrylates, or polyvinyl pyrrolidone
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/30—Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
- A61K47/34—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyesters, polyamino acids, polysiloxanes, polyphosphazines, copolymers of polyalkylene glycol or poloxamers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/30—Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
- A61K47/36—Polysaccharides; Derivatives thereof, e.g. gums, starch, alginate, dextrin, hyaluronic acid, chitosan, inulin, agar or pectin
- A61K47/38—Cellulose; Derivatives thereof
Definitions
- the present invention relates to a percutaneous absorption preparation with reduced skin irritation.
- Bisoprolol a highly selective antagonist ( ⁇ -blocker) of the ⁇ 1 receptor for sympathetic nerves, is used to improve essential hypertension, angina pectoris, and arrhythmias.
- the fumarate salt is orally administered as a tablet.
- drawbacks such as lack of sustainability of the effect and a blood concentration that is temporarily higher than necessary after administration, and side effects are likely to occur. For this reason, a practical transdermally absorbable preparation is desired to improve this.
- Patent Documents 1 to 4 Bisoprolol-containing patches are described in Patent Documents 1 to 4, for example.
- Patent Document 1 describes that a matrix-type preparation containing a rubber-based adhesive and bisoprolol have skin irritation.
- Patent Document 2 describes a matrix type preparation (laminated type preparation) containing an acrylic pressure-sensitive adhesive.
- Patent Document 3 describes that skin irritation can be reduced by controlling the skin absorption rate of bisoprolol to a certain value or less.
- the concentration of bisoprolol in the pressure-sensitive adhesive layer is low, and it is assumed that the bisoprolol is replaced every day. It is cumbersome considering the time and effort.
- Patent Document 4 includes a support, a drug reservoir containing bisoprolol and an acrylic adhesive, and a styrene-isoprene-styrene block copolymer as a transdermally absorbable preparation capable of transdermally administering bisoprolol for a long period of time.
- a layered preparation having a skin adhesion inhibiting layer is described.
- the layered preparation disclosed in Patent Document 4 contains a high concentration of bisoprolol in the drug reservoir layer and percutaneously absorbs a certain amount of bisoprolol through a skin adhesive layer, thereby allowing a certain amount of bisoprolol to be absorbed over a long period of time (for example, 3 to 3). 10 days), can be administered stably, and the adhesiveness to the skin is also good.
- the concentration of bisoprolol in the pressure-sensitive adhesive layer is controlled to be low in order to reduce skin irritation. It is necessary to increase the formulation area and the thickness of the drug reservoir. For this reason, since a feeling of use and an increase in cost are brought about, it is not preferable.
- the present invention was made to solve such a technical problem, and in a percutaneous absorption preparation containing a drug having strong skin irritation, it is possible to reliably reduce skin irritation with a simple configuration.
- An object is to provide a transdermally absorbable preparation.
- a transdermally absorbable preparation that is one embodiment of the present invention contains a non-liquid drug reservoir layer having first and second main surfaces, containing a drug and a polymer as a base, and a first drug reservoir layer. And a first support having a bending resistance of 10 to 80 mm formed so as to cover the side surface of the drug reservoir layer, which is provided on the main surface side of 1 and has a drug permeability lower than that of the drug reservoir layer And comprising.
- a drug permeable layer having a drug permeability lower than that of the drug reservoir layer is provided on the first main surface side of the drug reservoir layer. Can be percutaneously absorbed through the drug-permeable layer without direct contact with the skin.
- the first support having a bending resistance of 10 to 80 mm is formed so as to cover the side surface of the drug reservoir layer, it is possible to avoid the side surface of the drug reservoir layer from coming into contact with the skin. For this reason, skin irritation can be reduced.
- the transdermally absorbable preparation may include a second support formed so as to cover the second main surface side of the drug reservoir layer.
- the second support may be formed integrally with the first support.
- the first support is made of a polyethylene terephthalate film or a sheet made of a laminate of polyethylene terephthalate and a nonwoven fabric. By comprising in this way, reduction of skin irritation and drug impermeability can be made compatible.
- the drug permeation layer may have a larger area than the drug reservoir layer.
- the 1st support body which covers a drug reservoir layer can be fixed reliably.
- the drug permeation layer may have adhesiveness.
- the drug-penetrating layer may also exhibit a 1 second creep compliance greater than 1 ⁇ 10 ⁇ 6 cm 2 / dyne in the range of 30-40 ° C. By comprising in this way, it can be functioned also as a skin adhesive layer.
- the drug-penetrating layer may contain a rubber polymer.
- the rubber polymer may be a styrene block copolymer.
- the drug-penetrating layer may contain a styrene block copolymer at a content of 5 to 30% by mass.
- the drug permeation layer may contain a tackifier resin for having an adhesive force. By comprising in this way, adhesive force can be strengthened. Further, the drug permeation layer may be a layer having a thickness of 30 to 120 ⁇ m. With such a configuration, it is possible to ensure good adhesive properties and to control a drug sufficient for treatment for a long time.
- the polymer serving as the base of the drug reservoir layer may be a (meth) acrylic polymer or a cellulose derivative.
- the drug reservoir layer may be non-liquid in the range of 30 to 40 ° C.
- the drug may contain bisoprolol or a pharmaceutically acceptable salt thereof.
- the percutaneously absorbable preparation may further include a reinforcing layer for reinforcing the strength of the drug reservoir layer in the first principal surface side, the second principal surface side, or the drug reservoir layer of the drug reservoir layer. .
- a reinforcing layer for reinforcing the strength of the drug reservoir layer in the first principal surface side, the second principal surface side, or the drug reservoir layer of the drug reservoir layer.
- the reinforcing layer may be polyethylene terephthalate. Further, the reinforcing layer may be a layer of 100 g / m 2 to 400 g / m 2 . Further, the reinforcing layer may be a layer of 150 g / m 2 to 350 g / m 2 .
- skin irritation can be reliably reduced with a simple structure in a percutaneous absorption preparation containing a drug having strong skin irritation.
- transdermally absorbable preparation which concerns on embodiment. It is a top view of the transdermally absorbable preparation which concerns on embodiment. It is a schematic diagram of the manufacturing process of the percutaneous absorption preparation concerning an embodiment. It is a schematic diagram of the manufacturing process of the percutaneous absorption preparation concerning an embodiment. It is a schematic diagram of the manufacturing process of the percutaneous absorption preparation concerning an embodiment. It is a schematic diagram of the manufacturing process of the percutaneous absorption preparation concerning an embodiment. It is a schematic diagram of the manufacturing process of the percutaneous absorption preparation concerning an embodiment. It is a schematic diagram of the manufacturing process of the percutaneous absorption preparation concerning an embodiment. It is sectional drawing of the modification of a transdermal absorption preparation. It is sectional drawing of the modification of a transdermal absorption preparation.
- FIG. 1 and FIG. 2 show an example of a transdermally absorbable preparation that is one embodiment of the present invention.
- the transdermally absorbable preparation 1 includes a non-liquid drug reservoir layer 2 containing a drug and a polymer as a base, and an upper surface (first main surface) side that is one side of the drug reservoir layer 2. And a softness and softness formed so as to cover the drug permeable layer 4 having a lower drug permeability than that of the drug reservoir layer 2 and the side surface and the lower surface (second main surface) side of the drug reservoir layer 2 And a support body (first support body, second support body) 3 of 10 to 80 mm.
- a portion of the main surface of the drug permeation layer 4 that is not in contact with the release liner 5 that is not in contact with the drug reservoir layer 2 is also covered with the support 3.
- each layer which comprises the transdermal absorption preparation 1 here is formed in the substantially circular shape.
- the drug reservoir layer 2 is a layer containing a drug and a polymer serving as a base.
- the drug reservoir 2 becomes non-liquid in the range of 30 to 40 ° C., for example.
- the area of the drug reservoir layer 2 can be arbitrarily set in the range of 3 to 150 cm 2 in consideration of the drug amount and the application time, more preferably in the range of 10 to 100 cm 2 , and in the range of 10 to 50 cm 2 . Is particularly preferred.
- the thickness of the drug reservoir layer 2 is preferably 25 to 1000 ⁇ m, more preferably 50 to 500 ⁇ m, from the viewpoint that it can contain an amount of drug capable of exerting a sufficient therapeutic effect over the application period of the preparation, ease of production, strength of the preparation, etc. Preferably, 100 to 250 ⁇ m is more preferable.
- the drug permeation layer 4 is provided on the main surface of the drug reservoir layer 2 on the side in contact with the skin, and has a role of preventing the drug reservoir layer 2 from directly contacting the skin.
- the drug-penetrating layer 4 has tackiness in the range of 30 to 40 ° C., for example, and functions as a skin adhesive layer. That is, it is preferable that the drug-penetrating layer 4 exhibits a 1-second creep compliance greater than 1 ⁇ 10 ⁇ 6 cm 2 / dyne at 30 to 40 ° C. In such a case, the thickness of the drug-penetrating layer 4 having adhesiveness can ensure good adhesive physical properties to the skin over the entire application period, and a certain amount of drug sufficient for treatment can be sustained over a long period of time. Since it can be controlled and transdermally absorbed, it is preferably 10 to 200 ⁇ m, more preferably 20 to 150 ⁇ m, and particularly preferably 30 to 120 ⁇ m.
- the area of the drug permeation layer 4 is not particularly limited as long as it is equal to or larger than the area of the drug reservoir layer 2, but in order to securely fix the support 3 covering the drug reservoir layer, the area of the drug permeation layer 4 is larger than that of the drug reservoir layer 2. More preferably.
- the outer edge of the drug permeation layer 4 is preferably set in a larger range with a width of 1 to 10 mm than the outer edge of the drug reservoir layer 2, and more preferably larger with a width of 1 to 7 mm. It is more preferable if the width is 2 to 5 mm and it is large. As long as it is large in this range with respect to the outer edge of the drug reservoir layer 2, the support 3 can reliably cover the upper surface and side surfaces of the drug reservoir layer 2 that are not in contact with the drug permeation layer 4. Since the drug-penetrating layer 4 is in contact with a sufficient area, the mechanical strength of the preparation can be maintained, and the preparation can be easily manufactured.
- the total thickness of the drug reservoir layer 2 and the drug permeation layer 4 is not particularly limited, but is preferably 50 to 1000 ⁇ m, more preferably 100 to 500 ⁇ m, and particularly preferably 175 to 275 ⁇ m.
- the thickness ratio between the drug reservoir layer 2 and the drug permeation layer 4 is preferably 1: 5 to 5: 1, and more preferably 1: 1 to 5: 1.
- the drug permeation layer 4 one having a lower drug permeability than that of the drug reservoir layer 2 is used. That is, it is configured such that the penetration rate of the drug in the drug reservoir layer 2 through the drug permeation layer 4 is adjusted.
- the support 3 is not particularly limited as long as it is drug-impermeable and can support the pressure-sensitive adhesive layer.
- a stretchable or non-stretchable support selected from vinyl, polyvinylidene chloride, polyethylene, polyethylene terephthalate, aluminum sheet or the like, or a composite material thereof, or a laminate thereof can be used.
- a sheet made of a polyethylene terephthalate film or a laminate of a polyethylene terephthalate and a non-woven fabric is preferable from the viewpoint that both skin irritation reduction and drug impermeability can be achieved.
- the bending resistance of the support 3 is preferably 10 to 80 mm, and more preferably 15 to 70 mm. If the bending resistance of the support 3 is 10 mm or less, there is a risk of insufficient strength such as easy tearing at the time of sticking, and there is a problem that wrinkles are difficult to handle at the time of sticking because it is too soft. Moreover, when it is 80 mm or more, it tends to be too hard and the followability to the skin tends to deteriorate, the support tends to peel off and the drug reservoir layer may be exposed, and the feeling of use tends to deteriorate. That is, by setting the bending resistance of the support 3 to 10 to 80 mm, it is possible to realize the transdermal absorption preparation 1 that is safe and excellent in use feeling.
- the drug reservoir layer 2 of the transdermally absorbable preparation 1 contains a base polymer as an adhesive, it has a high viscosity and appropriate viscoelasticity. Therefore, it has a liquid component such as water and alcohol and a low viscosity. Unlike a reservoir-type preparation containing a drug in the gel, there is no leakage. For this reason, as long as the mechanical strength of the preparation can be maintained, the thin and soft support 3 can be used, and it is not necessary to completely seal by heat sealing or the like. As a result, not only the skin irritation derived from the drug but also the skin irritation due to the hardness of the preparation can be reduced.
- the drug in the case of a reservoir-type preparation, the drug is contained in a solvent or a gel having a low viscosity as described above, so that the drug and the solvent can be prevented from permeating into the support as well as avoiding liquid leakage. Therefore, it is necessary to ensure sufficient strength and seal. For this reason, since it is necessary to use the thing which can be heat-sealed as a support body, it becomes a hard thing as a formulation, and is inferior to the followability to a skin and a usability
- the bending resistance means bending resistance measured under the following conditions by the 45-degree cantilever method defined in JIS L1085. That is, a 2 cm ⁇ 15 cm test piece is placed on a smooth horizontal surface with a 45 ° slope at one end and a scale on the upper surface so that the short side of the test piece coincides with the baseline of the scale. The distance (mm) that the test piece has moved until the center point of one short side of the test piece is in contact with the inclined surface by sliding the test piece gently in the direction of the inclined surface.
- the thickness of the support 3 is usually 1 to 100 ⁇ m, preferably 5 to 50 ⁇ m, particularly preferably 5 to 25 ⁇ m.
- the transdermally absorbable preparation 1 is composed of a drug reservoir layer 2 containing the above-mentioned drug and a base polymer, a drug permeation layer 4 and a support 3 having a bending resistance of 10 to 80 mm.
- a drug reservoir layer 2 containing the above-mentioned drug and a base polymer
- a drug permeation layer 4 and a support 3 having a bending resistance of 10 to 80 mm.
- the drug reservoir 2 of the transdermal absorption preparation 1 contains a polymer.
- a polymer There is no particular limitation as long as a drug reservoir layer having an appropriate viscoelasticity can be formed and a drug reservoir layer having an appropriate viscoelasticity can be maintained in such a manner that a sufficient amount of drug can be exerted even when administered for a long period of time.
- Acrylic polymers and cellulose derivatives are preferably used.
- (meth) acryl means acryl or methacryl.
- (meth) acrylic polymers having substantially no hydroxyl groups and having carboxyl groups in the molecule are preferably used. This is because if a (meth) acrylic polymer having a hydroxyl group in the molecule is used, interaction with bisoprolol (or a salt thereof) occurs, resulting in a decrease in drug stability.
- Such a (meth) acrylic polymer has substantially no hydroxyl group and is not particularly limited as long as it has a carboxyl group.
- the drug reservoir 2 using such a carboxyl group-containing acrylic polymer can contain a drug such as bisoprolol or a pharmaceutically acceptable salt thereof at a high concentration and stably.
- examples of the cellulose derivative include hydroxypropyl methylcellulose, methylcellulose, hydroxypropylcellulose, hypromellose phthalate, hydroxypropylmethylcellulose acetate succinate, and the like.
- the drug that can be contained in the transdermally absorbable preparation 1 is not particularly limited as long as it is a compound that is absorbed through the skin and used in the treatment of various diseases described below.
- non-steroidal anti-inflammatory analgesics (diclofenac, Indomethacin, ketoprofen, felbinac, loxoprofen, ibuprofen, flurbiprofen, thiaprofen, acemetacin, sulindac, etodolac, tolmethine, piroxicam, meloxicam, ampiroxicam, naproxen, azapropazone, methyl salicylate, glycecoxib, valdecoxib, valdecoxib, valdecoxib, valdecoxib Agents (diltiazem, nicardipine, nilvadipine, metoprolol, bisoprolol, trandolapril), antiparkinsonian agents (
- a basic drug is likely to cause damage to cell membranes such as epidermal cells having a negative charge, and its use as a transdermal preparation is often accompanied by skin irritation.
- a transdermally absorbable preparation it is particularly preferably used because of its excellent irritation suppressing effect.
- the primary skin irritation of a drug depends on the concentration of the drug in contact with the skin and the amount of skin permeation, but the drug used in the layered type transdermal absorption preparation 1 of this embodiment has a concentration in the preparation.
- Drugs with a tendency to cause skin irritation at 20% by mass or less such as antihypertensive agents (diltiazem, nicardipine, nilvadipine, metoprolol, bisoprolol, trandolapril), antiparkinsonian agents (pergolide, bromocriptine, ropinirole, selegiline), bone coarse Treatment drugs (raloxifene, alendronate), antidepressants (sertraline, fluoxetine, paroxetine, citalopram, fluvoxamine), or a pharmaceutically acceptable salt thereof (hydrochloride, hydrobromide, nitrate, sulfate, Phosphate, formate, acetate, trifluoroacetate, propio Acid
- the content of the drug or a pharmaceutically acceptable salt thereof blended in the drug reservoir layer 2 is usually 1 to 60% by mass, preferably 20 to 50% by mass, particularly preferably 30 to 50% by mass. It is a range.
- the drug can be contained in the drug reservoir layer 2 in a dissolved state, a supersaturated crystal state, or a dispersed state. If the content is 1% by mass or less, sufficient skin permeability cannot be obtained, which is not preferable, and if it is 60% by mass or more, sufficient cohesive force as a patch cannot be maintained.
- the drug reservoir layer 2 may further contain a solubilizer and / or an absorption enhancer.
- a solubilizer may be used as long as it is a compound having a dissolving action on a drug.
- the absorption enhancer may be any compound that has been conventionally recognized as having an absorption promoting action on the skin. Examples of the solubilizer and / or absorption promoter include fatty acids having 6 to 20 carbon chains, fatty alcohols, fatty acid esters, amides or ethers, aromatic organic acids, aromatic alcohols, and aromatic organic acid esters.
- ether they may be saturated or unsaturated, and may be either cyclic or linear branched
- lactic acid esters acetic acid esters, monoterpene compounds, sesquiterpene compounds, Azone, Azone derivatives, pyrothiodecane, glycerin fatty acid esters, propylene glycol fatty acid esters, sorbitan fatty acid esters (Span), polysorbate (Tween), polyethylene glycol fatty acid esters, polyoxyethylene hydrogenated castor oil ( HCO), polyoxyethyleneal Ethers, sucrose fatty acid esters, vegetable oils and the like.
- lauryl alcohol, myristyl alcohol, oleyl alcohol, isostearyl alcohol, diethyl sebacate, glycerol monocaprate, glycerol monolaurate, glycerol monooleate, sorbitan monolaurate, propylene glycol monolaurate, polyoxyethylene Lauryl ether and pyrothiodecane are preferred, and isopropyl myristate is more preferred.
- solubilizers or absorption promoters may be used singly or in combination of two or more.
- These compounding amounts are not particularly limited, but are preferably 1 to 40% by mass, more preferably 1 to 20% by mass based on the total amount of compounds contained in the drug reservoir layer 2, and 1 to 10% by mass. % Is particularly preferred.
- the base of the drug osmotic layer 4 includes a rubber-based adhesive component.
- the rubber-based adhesive component include polyisobutylene; isoprene rubber; styrene block copolymers such as styrene-isoprene-styrene block copolymer and styrene-butadiene-styrene copolymer, styrene-butadiene rubber, polysiloxane, etc. Can be suitably used, and one or more of these can be used alone or in combination.
- Styrene-isoprene-styrene block copolymer and polyisobutylene are particularly preferably used from the viewpoint that adhesiveness and drug release can be controlled continuously for a long time.
- the content of the styrene-isoprene-styrene block copolymer with respect to the drug-penetrating layer 4 is 5% by mass or less, sufficient permeability and cohesion as a patch tend not to be maintained, and is 30% by mass or more. Since sufficient adhesive strength as a patch cannot be maintained, 5 to 30% by mass is preferable.
- the drug permeation layer 4 is used by combining two or more kinds of polyisobutylene having different molecular weights in addition to the styrene-isoprene-styrene block copolymer.
- the content of the synthetic rubber is preferably 1 to 30% by mass, and more preferably 5 to 20% by mass.
- the drug osmotic layer 4 and the drug reservoir layer 2 may contain the same polymer. However, the drug osmotic layer 4 may have other drug permeability such that the drug permeability of the drug permeable layer 4 is smaller than that of the drug reservoir layer 2. The ingredients are blended.
- the drug-permeable layer 4 contains a tackifying resin when the adhesive force applicable for at least 12 hours is insufficient
- the tackifying resin that can be used include rosin derivatives (for example, rosin, Rosin glycerin ester, hydrogenated rosin, hydrogenated rosin glycerin ester, rosin pentaerythritol ester, etc.), alicyclic saturated hydrocarbon resins (eg Alcon P-100, Arakawa Chemical Industries), aliphatic hydrocarbon resins (For example, Quinton B170, Nippon Zeon), terpene resin (for example, Clearon P-125, Yasuhara Chemical), resin maleate and the like.
- hydrogenated rosin glycerin ester, alicyclic saturated hydrocarbon resin, and terpene resin are preferable, and alicyclic saturated hydrocarbon resin is particularly preferable.
- tackifiers may be used alone or in combination of two or more, and the blending amount is not particularly limited, but is preferably 10 to 60% by weight, and 20 to 60 More preferably, it is more preferably 30% to 50% by weight.
- the drug-penetrating layer 4 may contain a plasticizer.
- Plasticizers include petroleum oils (eg, paraffinic process oil, naphthenic process oil, aromatic process oil, etc.), squalane, squalene, vegetable oils (eg, olive oil, camellia oil, castor oil, tall oil, peanut Oil), silicon oil, dibasic acid ester (eg, dibutyl phthalate, dioctyl phthalate, etc.), liquid rubber (eg, polybutene, liquid isoprene rubber), liquid fatty acid esters (isopropyl myristate, hexyl laurate, diethyl sebacate, Diisopropyl sebacate), diethylene glycol, polyethylene glycol, glycol salicylate, propylene glycol, dipropylene glycol, triacetin, triethyl citrate, crotamiton and the like. Liquid paraffin, liquid polybutene, isopropyl myristate,
- plasticizers may be used alone or in combination of two or more.
- the blending amount of these plasticizers is not particularly limited, but is preferably 5 to 50% by weight, more preferably 10 to 40% by weight, and particularly preferably 20 to 30% by weight in the drug permeation layer. preferable.
- an antioxidant a filler, a cross-linking agent, an antiseptic, an ultraviolet absorber and the like can be blended in the drug reservoir layer 2 and the drug permeation layer 4 as necessary.
- antioxidant tocopherol and their ester derivatives, ascorbic acid, ascorbic acid stearic acid ester, nordihuman logayaretinic acid, dibutylhydroxytoluene (BHT), butylhydroxyanisole are preferable, and as the filler, calcium carbonate, Magnesium carbonate, silicate (for example, aluminum silicate, magnesium silicate, etc.), silicic acid, barium sulfate, calcium sulfate, calcium zincate, zinc oxide, and titanium oxide are preferable, and amino resins and phenol resins are used as crosslinking agents.
- silicate for example, aluminum silicate, magnesium silicate, etc.
- silicic acid barium sulfate, calcium sulfate, calcium zincate, zinc oxide, and titanium oxide are preferable
- amino resins and phenol resins are used as crosslinking agents.
- Thermosetting resins such as epoxy resins, alkyd resins and unsaturated polyesters, isocyanate compounds, block isocyanate compounds, organic crosslinking agents, and inorganic crosslinking agents such as metals or metal compounds are desirable.
- the preservative ethyl paraoxybenzoate, propyl paraoxybenzoate and butyl paraoxybenzoate are preferable, and as the ultraviolet absorber, p-aminobenzoic acid derivatives, anthranilic acid derivatives, salicylic acid derivatives, coumarin derivatives, amino acid compounds , An imidazoline derivative, a pyrimidine derivative, and a dioxane derivative are preferable.
- the amount of each of the antioxidant, filler, crosslinking agent, preservative, and ultraviolet absorber is not particularly limited, but the total amount of the antioxidant, filler, crosslinking agent, preservative, and ultraviolet absorber is It is preferably 0.01 to 20% by weight, more preferably 0.1 to 10% by weight, based on the total amount of components contained in each layer, converted into the drug reservoir layer and the drug osmotic layer separately, It is particularly preferably 1 to 5% by weight.
- an acrylic pressure-sensitive adhesive, a rubber pressure-sensitive adhesive, or a silicone pressure-sensitive adhesive is provided between the drug reservoir layer 2 and the drug-penetrating layer 4 of the transdermal absorption preparation 1 or on the surface of the drug-penetrating layer 4 on the skin contact side.
- An adhesive layer can also be provided.
- a reinforcing layer 8 can be interposed between the drug reservoir layer 2 and the drug permeation layer 4 as long as the permeation of the drug is not hindered.
- the reinforcing layer 8 may be between the portion of the support 3 formed on the main surface side of the drug reservoir layer 2 and the drug permeation layer 4, and may exist in the drug reservoir layer 2. is there. That is, the reinforcing layer 8 is formed on the upper surface side, the lower surface side, or the drug reservoir layer 2 of the drug reservoir layer 2.
- the reinforcing layer 8 reinforces the strength of the drug reservoir layer 2.
- the adhesion and adhesion of the storage layer 2 can be prevented, and the manufacturing process can be simplified.
- the thickness of the reinforcing layer 8 is 20 ⁇ m to 250 ⁇ m from the viewpoint of increasing the mechanical strength at the time of cutting the drug reservoir layer 2, preventing adhesion of the drug reservoir layer 2 to the blade, and preventing the penetration of the drug. Is preferably 50 ⁇ m to 200 ⁇ m. Further, the bending / softness needs to be 5 mm to 150 mm, and preferably 10 mm to 100 mm. Further, the weight per unit area (weight in the case of fibers) needs to be 100 g / m 2 to 400 g / m 2 , preferably 150 g / m 2 to 350 g / m 2 .
- the reinforcing layer 8 examples include films made of components such as polyurethane, polyester (polyethylene terephthalate, etc.), polypropylene, polyvinyl acetate, ethylene-vinyl acetate copolymer, polyvinylidene chloride, polyethylene, nylon, acrylic, cotton, rayon, Examples thereof include fiber sheets such as woven fabric, non-woven fabric, and mesh.
- the component is preferably polyester, and particularly preferably a polyester mesh having a mesh shape.
- the adhesive layer of the patch of the transdermal absorption preparation 1 is preferably provided with a release liner 5 on the surface in contact with the skin opposite to the support 3.
- the release liner 5 include films such as polyesters such as polyethylene terephthalate, polyvinyl chloride and polyvinylidene chloride, and laminate films of fine paper and polyolefin.
- These release liners 5 are preferably those having a silicone treatment on the surface in contact with the pressure-sensitive adhesive layer.
- the release liner 5 can be easily peeled off from the pressure-sensitive adhesive layer at the time of use by silicone treatment.
- the release liner 5 having a thickness of 50 to 150 ⁇ m can be suitably used.
- percutaneously absorbable preparation according to the present invention is not limited to the percutaneously absorbable preparation according to the embodiment, and the percutaneously absorbable preparation 1 according to the embodiment is modified without changing the gist described in each claim. Or, it may be applied to other things.
- the support 3 is configured to cover the side surface and the lower surface of the drug reservoir layer 2 has been described.
- the percutaneous absorption preparation shown in FIG. The case where it forms only in the side surface of the reservoir 2 may be sufficient. Even when formed in this way, it is possible to avoid the drug reservoir layer 2 from coming into direct contact with the skin during actual use.
- the example in which the portion that is not in contact with the drug reservoir layer 2 is also covered with the support 3 on the main surface of the drug permeation layer 4 that is not in contact with the release liner 5 is described.
- the portion that is not in contact with the drug reservoir layer 2 may not be covered with the support 3.
- the support 3 may be formed on the side surfaces of the drug reservoir layer 2 and the drug permeation layer 4 as in the percutaneous absorption preparation shown in FIG.
- the support 3 is configured to cover the side surface and the lower surface of the drug reservoir layer 2
- the support 3 is the side surface of the drug reservoir layer 2.
- the lower surface of the drug reservoir layer 2 may be covered with a support (second support) 7 made of a material different from the support 3. What is necessary is just to select suitably the raw material of the support body which covers the lower surface of the drug storage layer 2 from the raw material of the support body 3 demonstrated by embodiment mentioned above.
- each layer of the transdermally absorbable preparation 1 is substantially circular has been described, but it may be formed in a rectangular shape as shown in FIG.
- the example in which the drug-penetrating layer 4 has adhesiveness has been described.
- an acrylic adhesive, a rubber-based adhesive, or a silicone adhesive is used.
- the drug-penetrating layer 4 may not have adhesiveness.
- the drug reservoir of the transdermally absorbable preparation (bisoprolol-containing preparation) shown in Examples 1 to 3 and Comparative Example 1 has the following composition.
- (Drug reservoir) Acrylic adhesive (-COOH type) 50% Liquid paraffin ... 10% Bisoprolol 40%
- the drug reservoir of the transdermally absorbable preparation (bisoprolol-containing preparation) shown in Example 4 and Comparative Example 2 has the following composition.
- the drug permeation layer of the transdermally absorbable preparation shown in Examples 1 to 4 and Comparative Examples 1 and 2 has the following composition.
- Example 1 Metal for producing transdermally absorbable preparation which is one embodiment of the present invention
- Bisoprolol was mixed with liquid paraffin dispersed in 2-ethylhexyl acrylate / butyl acrylate / acrylic acid copolymer dissolved in ethyl acetate, toluene and hexane to obtain a coating solution.
- the solvent is removed by drying to form an adhesive layer having a predetermined plaster thickness (200 ⁇ m).
- the drug reservoir 2 of the transdermally absorbable preparation in the form was obtained (FIG. 3).
- the compounding ratio of each component was as prescribed above.
- styrene-isoprene-styrene block copolymer [SIS], polyisobutylene [PIB] (high molecular weight), polyisobutylene [PIB] (low molecular weight), alicyclic saturated hydrocarbon resin, liquid paraffin are dissolved in toluene.
- the applied liquid was applied onto a release film 6 made of polyethylene terephthalate, and the solvent was removed by drying to form a drug-penetrating layer 4 having a predetermined plaster thickness (50 ⁇ m).
- the compounding ratio of each component was made into the prescription shown above.
- both main surfaces were protected with a release liner.
- the drug reservoir layer 2 is punched to an arbitrary size (FIG. 3), and the release liner of the drug reservoir layer 2 is peeled off only on one side, and the release liner 5 of the drug permeation layer 4 is similarly peeled off only on one side.
- the main surface of the drug reservoir layer 2 from which the liner was peeled off and the main surface of the drug permeation layer 4 from which the release liner 5 was peeled off were bonded together (FIG. 4).
- the release liner remaining from the other main surface of the drug reservoir layer 2 and the release film 6 made of polyethylene terephthalate are peeled off (FIG.
- FIG. 6 A percutaneous absorption-type preparation which is an embodiment of the present invention was obtained (FIG. 7).
- Examples 2 and 3 Method for producing transdermally absorbable preparation which is one embodiment of the present invention
- the reinforcing layer 8 was formed on one main surface side of the drug reservoir layer 2.
- the drug reservoir layer 2 is punched out to an arbitrary size from the reinforcing layer 8 side to release the release liner on the reinforcing layer 8 side, and the release liner 5 of the drug permeation layer 4 is only on one side.
- the main surface of the reinforcing layer 8 and the main surface of the drug-penetrating layer 4 from which the release liner 5 was peeled off were bonded together.
- Other manufacturing methods are the same as those in the first embodiment.
- Example 4 (Method for producing transdermally absorbable preparation which is one embodiment of the present invention) Ethanol was added to the cellulose derivative and dissolved, then bisoprolol was added and stirred sufficiently to obtain a coating solution. Next, after apply
- Examples 1 to 4 exemplify a method for producing a transdermally absorbable preparation which is one form of the present invention.
- the drug reservoir layer 2 and the drug permeation layer 4 contain a polymer as described above, the viscosity is high. Since it has elasticity, unlike a reservoir-type preparation, it is not necessary to completely seal a liquid component with a support, a controlled release membrane, or a drug-penetrating layer 4, and therefore it can be easily produced at low cost. Further, since the drug reservoir layer 2 has a high viscosity, a margin that is a joint portion between the support 3 and the drug permeation layer 4 can be set to a minimum. Thereby, a transdermal absorption preparation can be reduced in size.
- the manufacturing method of the percutaneous absorption preparation which is one form of this invention is not restricted to this.
- Comparative Example 1 (Manufacturing method of Comparative Example 1) Bisoprolol was mixed with liquid paraffin dispersed in 2-ethylhexyl acrylate / butyl acrylate / acrylic acid copolymer dissolved in ethyl acetate, toluene and hexane to obtain a coating solution. Next, after coating the obtained coating liquid on a polyethylene terephthalate release film, the solvent was dried and removed to form an adhesive layer having a predetermined plaster thickness (200 ⁇ m). Furthermore, it was bonded to a polyethylene terephthalate support (flexibility: 47 mm, thickness: 25 ⁇ m) to obtain a drug reservoir layer for a transdermal absorption preparation.
- a coating solution in which styrene-isoprene-styrene block copolymer, polyisobutylene (high molecular weight), polyisobutylene (low molecular weight), alicyclic saturated hydrocarbon resin, liquid paraffin is dissolved in toluene is made of polyethylene terephthalate After coating on the release film, the solvent was removed by drying to form a drug-penetrating layer having a predetermined plaster thickness (50 ⁇ m).
- Example 1 The percutaneous absorption type preparation of Example 1 was obtained.
- the compounding ratio of each component was as the said prescription.
- Comparative Example 2 Manufacturing method of Comparative Example 2 A drug reservoir was produced in the same manner as in Example 4. In addition, the compounding ratio of each component was as the said prescription. Other manufacturing methods are the same as those in Comparative Example 1.
- Test Example 1 Skin irritation test
- Rabbit skin primary irritation test A test substance of 2 cm x 2 cm is affixed to the shaved back skin of a rabbit, fixed with Cerapore (registered trademark) tape (3.8 cm x 5 cm, Nichiban Co., Ltd.) from above, and a rabbit jacket (14101320: LOMIR) After mounting, it was returned to the cage.
- the test substance was peeled off 24 hours after application, and the erythema / crust and edema formation at 1 hour, 24 hours, and 48 hours after peeling were observed visually, and scored based on the evaluation criteria of Draize et al. .
- the primary skin irritation was determined by calculating the primary skin irritation index (PII). For erythema and edema formation at 1 hour, 24 hours, and 48 hours after exfoliation, the average score of each individual was determined, and the average score sum of each group was determined and divided by 3 to calculate the skin primary irritation index. .
- PII primary skin irritation index
- Table 1 the percutaneously absorbable preparation (Example 1) which is one form of the present invention, unlike the results of Comparative Example 1, significantly reduced skin irritation at the periphery of the preparation. The effect of was demonstrated.
- the percutaneously absorbable preparation (Example 4) which is an embodiment of the present invention has a markedly reduced skin irritation in the periphery of the preparation, unlike the results of Comparative Example 2. The effect of was demonstrated.
- Test Example 2 Yield test
- the yield by the process imitating auto manufacturing was evaluated.
- the drug reservoir layer 2 (without the reinforcing layer 8) in which both main surfaces shown in the production process of Example 1 are protected by a release liner, and both main surfaces shown in the production processes of Examples 2 and 3 are release liners.
- a protected drug reservoir 2 (with reinforcement layer 8) was used.
- the reinforcing layer 8 described in Table 2 below was provided.
- the release liner on one main surface of the drug reservoir layer 2 according to Example 1 and the release liner on the reinforcing layer 8 side of the drug reservoir layer 2 according to Examples 2 and 3 are respectively peeled, and an arbitrary shape is formed from the surface.
- a half cut with a cutting blade was inserted so that Half-cut products that can be counted as non-defective products (products that are good in appearance as products) when unnecessary parts are removed as earcrumbs were counted, and the ratio to the number of cuts was calculated as the yield.
- the yield was higher when the reinforcing layer 8 was provided (Examples 2 and 3) than when the reinforcing layer 8 was not provided (Example 1).
- the yield was high (60 to 100%).
- the adhesion of the adhesive body to the cutting blade was not confirmed by making the reinforcement layer 8 into the polyester mesh (Example 3). As described above, it was confirmed that the provision of the reinforcing layer 8 facilitates the production during auto production and can be expected to improve the yield.
- Test Example 3 Human mouse skin permeation test
- the skin peeled from the back of hairless mice female, 8 weeks old
- a flow-through cell in which warm water of 32 ° C is circulated around the outer periphery so that the dermis side is the receptor tank side, and the stratum corneum side of the skin
- the patches listed in Table 2 were attached.
- the receptor solution was sampled every 4 hours while flowing at a rate of 3.75 ml / h.
- the flow rate of the receptor solution was measured, and the drug concentration of the sampled receptor solution was measured using high performance liquid chromatography.
- the drug permeation rate per hour was calculated, and the drug permeation rate (FLUX) per unit area of the skin was obtained.
- the results are shown in FIG.
- the patch (solid line) of Example 3 provided with the reinforcing layer 8 showed FLUX equivalent to the patch (dotted line) of Example 1 not provided with the reinforcing layer 8, and the polyester mesh It was shown that the reinforcing layer 8 does not hinder drug permeability.
- the transdermally absorbable preparation which is one form of the present invention ensures, for example, a drug that exhibits skin irritation when in contact with the skin at a high concentration such as bisoprolol over a long period of time and continuously in a certain amount necessary for treatment. It can be administered transdermally and skin irritation is sufficiently reduced. Therefore, it is industrially useful because it is safe, excellent in feeling of use, and can be easily produced at low cost.
- SYMBOLS 1 Percutaneous absorption preparation, 2 ... Drug storage layer, 3 ... Support body (1st support body, 2nd support body), 4 ... Drug penetration layer, 5 ... Release liner, 8 ... Reinforcement layer.
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Abstract
Description
実施例1~3及び比較例1に示す経皮吸収製剤(ビソプロロール含有製剤)の薬物貯留層は以下の組成を有している。
(薬物貯留層)
アクリル粘着剤(-COOHタイプ)・・・50%
流動パラフィン・・・10%
ビソプロロール・・・40%
また、実施例4及び比較例2に示す経皮吸収製剤(ビソプロロール含有製剤)の薬物貯留層は以下の組成を有している。
(薬物貯留層)
セルロース誘導体・・・60%
ビソプロロール・・・40%
また、実施例1~4及び比較例1,2に示す経皮吸収製剤の薬物浸透層は以下の組成を有している。
(薬物浸透層)
スチレン-イソプレン-スチレンブロック共重合体・・・20%
低分子量ポリイソブチレン・・・5%
高分子量ポリイソブチレン・・・13%
脂環族飽和炭化水素樹脂・・・40%
流動パラフィン・・・22%
(本発明の一形態である経皮吸収製剤の製造方法)
酢酸エチル、トルエン及びヘキサンに溶解したアクリル酸-2-エチルヘキシル・アクリル酸ブチル・アクリル酸共重合体に流動パラフィンを分散させたものに、ビソプロロールを混合し、塗工液を得た。次に得られた塗工液をポリエチレンテレフタラート製離型フィルム6上に塗工後、溶剤を乾燥除去して、所定の膏体厚み(200μm)を有する粘着層を形成させ、本発明の一形態である経皮吸収製剤の薬物貯留層2を得た(図3)。なお、各成分の配合比は上記に処方の通りとした。
(本発明の一形態である経皮吸収製剤の製造方法)
剥離ライナーで薬物貯留層2の主面を保護する前に、薬物貯留層2の一方の主面側に補強層8を形成した。そして、剥離ライナーで保護した後、補強層8側から薬物貯留層2を任意の大きさに打ち抜いて、補強層8側の剥離ライナーを剥離するとともに、薬物浸透層4の剥離ライナー5を片面のみ剥離し、補強層8の主面と剥離ライナー5を剥離した薬物浸透層4の主面とを貼り合わせた。その他の製造方法は実施例1と同様である。
(本発明の一形態である経皮吸収製剤の製造方法)
セルロース誘導体にエタノールを加え溶解させた後、ビソプロロールを加えて充分に攪拌し、塗工液を得た。次に、得られた塗工液をポリエチレンテレフタレート製離型フィルム上に塗布した後、溶媒であるエタノールを乾燥除去して、薬物貯留層を形成した。所定の厚み(200μm)とし、さらに、ポリエチレンテレフタレート製支持体と貼り合わせて、本発明の一形態である経皮吸収製剤の薬物貯留層2を得た(図3)。なお、各成分の配合比は上記に処方の通りとした。その他の製造方法は実施例1と同様である。
(比較例1の製造方法)
酢酸エチル、トルエン及びヘキサンに溶解したアクリル酸-2-エチルヘキシル・アクリル酸ブチル・アクリル酸共重合体に流動パラフィンを分散させたものに、ビソプロロールを混合し、塗工液を得た。次に得られた塗工液をポリエチレンテレフタラート製離型フィルム上に塗工後、溶剤を乾燥除去して、所定の膏体厚み(200μm)を有する粘着層を形成させた。さらに、ポリエチレンテレフタラート製支持体(剛軟度:47mm、厚み:25μm)と貼り合わせて経皮吸収製剤の薬物貯留層を得た。
(比較例2の製造方法)
実施例4と同様に薬物貯留層を製造した。なお、各成分の配合比は前記処方の通りとした。その他の製造方法は比較例1と同様である。
(皮膚刺激性試験)
(ウサギ皮膚一次刺激性試験)
ウサギの剃毛済み背部皮膚に2cm×2cmの被験物質を貼付し、上からセラポア(登録商標)テープ(3.8cm×5cm、ニチバン株式会社)で固定し、ウサギ用ジャケット(14101320:LOMIR社)を装着後、ケージに戻した。貼付24時間後に被験物質を剥離し、剥離後1時間、24時間、48時間目の紅斑・痂皮及び浮腫形成について肉眼的に観察し、Draizeらの評価基準(下表)に基づいて採点した。
(皮膚刺激性試験結果)
(歩留まり試験)
オート製造を模倣した工程による歩留まりを評価した。実施例1の製造工程で示した両主面が剥離ライナーで保護された薬物貯留層2(補強層8なし)、及び、実施例2、3の製造工程で示した両主面が剥離ライナーで保護された薬物貯留層2(補強層8あり)を用いた。なお、実施例2、3では、下記の表2に記載した補強層8を設けた。実施例1に係る薬物貯留層2の一方の主面の剥離ライナー、及び、実施例2、3に係る薬物貯留層2の補強層8側の剥離ライナーをそれぞれ剥離し、その面から任意の形となるように裁断刃によるハーフカットを入れた。不要な部分を耳くずとして剥がした際に良品(製品として外観上良好なもの)としてカウントできるハーフカット品を数え、裁断数に対する割合を歩留まりとして算出した。また、裁断刃へ薬物貯留層2が付着したか否かを目視により確認した。
(ヘアレスマウス皮膚透過試験)
へアレスマウス(雌・8週齢)背部から剥離した皮膚を、その真皮側がレセプター槽側となるように32℃の温水を外周部に循環させたフロースルーセルに装着し、皮膚の角質層側に表2に記載の貼付剤を貼付した。そして、レセプター溶液としてPBSを用いて、これを3.75ml/hに設定して流しながら4時間ごとにレセプター溶液をサンプリングした。レセプター溶液の流量を実測するとともに、サンプリングしたレセプター溶液について、高速液体クロマトグラフィーを用いて薬物濃度を測定した。得られた流量及び薬物濃度の測定値から、1時間当たりの薬物透過速度を算出し、皮膚の単位面積当たりの薬物透過速度(FLUX)を求めた。結果を図13に示す。図13に示すように、補強層8を設けた実施例3の貼付剤(実線)は、補強層8を設けていない実施例1の貼付剤(点線)と同等のFLUXを示し、ポリエステルメッシュの補強層8は薬物の透過性を妨げないことが示された。
Claims (20)
- 薬物及び基剤となる高分子を含有し、第1及び第2の主面を有する非液状の薬物貯留層と、
前記薬物貯留層の前記第1の主面側に設けられ、前記薬物の浸透性が前記薬物貯留層のものよりも低い薬物浸透層と、
前記薬物貯留層の側面を覆うように形成される剛軟度10~80mmの第1支持体と、
を備える経皮吸収製剤。 - 前記薬物貯留層の前記第2の主面側を覆うように形成される第2支持体を備えることを特徴とする請求項1に記載の経皮吸収製剤。
- 前記第2支持体が、前記第1支持体と一体的に形成されることを特徴とする請求項2に記載の経皮吸収製剤。
- 前記第1支持体が、ポリエチレンテレフタレートフィルム、又はポリエチレンテレフタレートと不織布とのラミネートからなるシートである請求項1~3の何れか一項に記載の経皮吸収製剤。
- 前記薬物浸透層が、前記薬物貯留層よりも広い面積を有することを特徴とする請求項1~4の何れか一項に記載の経皮吸収製剤。
- 前記薬物浸透層が、粘着性を有することを特徴とする請求項1~5の何れか一項に記載の経皮吸収製剤。
- 前記薬物浸透層が、30~40℃の範囲で1×10-6cm2/ダインより大きな1秒クリープコンプライアンスを示すことを特徴とする請求項1~6の何れか一項に記載の経皮吸収製剤。
- 前記薬物浸透層が、粘着力を有するための粘着付与樹脂を含有する請求項1~7の何れか一項に記載の経皮吸収製剤。
- 前記薬物浸透層が、厚さ30~120μmの層であることを特徴とする請求項1~8の何れか一項に記載の経皮吸収製剤。
- 前記薬物浸透層が、ゴム系高分子を含有する請求項1~9の何れか一項に記載の経皮吸収製剤。
- 前記ゴム系高分子が、スチレン系ブロック共重合体である請求項10に記載の経皮吸収製剤。
- 前記薬物浸透層が、前記スチレン系ブロック共重合体を5~30質量%の含有量で含有することを特徴とする請求項11に記載の経皮吸収製剤。
- 前記薬物貯留層の基剤となる高分子が、(メタ)アクリル系高分子又はセルロース誘導体である請求項1~12の何れか一項に記載の経皮吸収製剤。
- 前記薬物は、ビソプロロール又はその薬学的に許容される塩を含有する請求項1~13の何れか一項に記載の経皮吸収製剤。
- 前記薬物貯留層が、厚さ100~250μmの層であることを特徴とする請求項1~14の何れか一項に記載の経皮吸収製剤。
- 前記薬物貯留層が、30~40℃の範囲で非液状となることを特徴とする請求項1~15の何れか一項に記載の経皮吸収製剤。
- 前記薬物貯留層の前記第1の主面側、前記第2の主面側、又は前記薬物貯留層内に前記薬物貯留層の強度を補強するための補強層をさらに備える請求項1~16の何れか一項に記載の経皮吸収製剤。
- 前記補強層が、ポリエチレンテレフタレートである請求項17に記載の経皮吸収製剤。
- 前記補強層が、100g/m2~400g/m2の層である請求項17又は18に記載の経皮吸収製剤。
- 前記補強層が、150g/m2~350g/m2の層である請求項17又は18に記載の経皮吸収製剤。
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CN201080007994XA CN102316901B (zh) | 2009-02-18 | 2010-02-09 | 经皮吸收制剂 |
US13/201,999 US8702664B2 (en) | 2009-02-18 | 2010-02-09 | Transdermal preparation |
JP2011500563A JP5542791B2 (ja) | 2009-02-18 | 2010-02-09 | 経皮吸収製剤 |
EP10743664.4A EP2399607B1 (en) | 2009-02-18 | 2010-02-09 | Transdermal preparation |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2012057220A1 (ja) * | 2010-10-28 | 2012-05-03 | 久光製薬株式会社 | 経皮吸収型製剤 |
WO2012057212A1 (ja) * | 2010-10-28 | 2012-05-03 | 久光製薬株式会社 | 経皮吸収型製剤 |
US20150374642A1 (en) * | 2012-09-28 | 2015-12-31 | KM Transderm Ltd. | Transdermal patch |
WO2017131034A1 (ja) * | 2016-01-28 | 2017-08-03 | 久光製薬株式会社 | 経皮吸収製剤 |
Families Citing this family (6)
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WO2012057220A1 (ja) * | 2010-10-28 | 2012-05-03 | 久光製薬株式会社 | 経皮吸収型製剤 |
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JPWO2017131034A1 (ja) * | 2016-01-28 | 2018-09-06 | 久光製薬株式会社 | 経皮吸収製剤 |
Also Published As
Publication number | Publication date |
---|---|
US8702664B2 (en) | 2014-04-22 |
KR20110127215A (ko) | 2011-11-24 |
JPWO2010095537A1 (ja) | 2012-08-23 |
CN102316901A (zh) | 2012-01-11 |
CN102316901B (zh) | 2013-09-11 |
EP2399607A4 (en) | 2013-08-21 |
US20120029446A1 (en) | 2012-02-02 |
EP2399607A1 (en) | 2011-12-28 |
EP2399607B1 (en) | 2017-11-29 |
JP5542791B2 (ja) | 2014-07-09 |
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