WO2008052417A1 - Comprimé à pompe osmotique à porosité contrôlée de médicaments hautement perméables et procédé de préparation de celui-ci - Google Patents

Comprimé à pompe osmotique à porosité contrôlée de médicaments hautement perméables et procédé de préparation de celui-ci Download PDF

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Publication number
WO2008052417A1
WO2008052417A1 PCT/CN2007/002967 CN2007002967W WO2008052417A1 WO 2008052417 A1 WO2008052417 A1 WO 2008052417A1 CN 2007002967 W CN2007002967 W CN 2007002967W WO 2008052417 A1 WO2008052417 A1 WO 2008052417A1
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Prior art keywords
osmotic pump
core
semipermeable membrane
film
main drug
Prior art date
Application number
PCT/CN2007/002967
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English (en)
French (fr)
Inventor
Jingang Wang
Haisong Jiang
Original Assignee
Cosci Med-Tech Co. Ltd.
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 Cosci Med-Tech Co. Ltd. filed Critical Cosci Med-Tech Co. Ltd.
Priority to US12/445,690 priority Critical patent/US8703193B2/en
Priority to ES07816581.8T priority patent/ES2446267T3/es
Priority to EP07816581.8A priority patent/EP2085078B1/en
Priority to PL13162439T priority patent/PL2679220T3/pl
Priority to PL07816581T priority patent/PL2085078T3/pl
Priority to DK07816581.8T priority patent/DK2085078T3/en
Priority to EP13162439.7A priority patent/EP2679220B1/en
Publication of WO2008052417A1 publication Critical patent/WO2008052417A1/zh
Priority to HK10100672.3A priority patent/HK1136962A1/xx

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/0002Galenical forms characterised by the drug release technique; Application systems commanded by energy
    • A61K9/0004Osmotic delivery systems; Sustained release driven by osmosis, thermal energy or gas
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/13Amines
    • A61K31/135Amines having aromatic rings, e.g. ketamine, nortriptyline
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/13Amines
    • A61K31/135Amines having aromatic rings, e.g. ketamine, nortriptyline
    • A61K31/137Arylalkylamines, e.g. amphetamine, epinephrine, salbutamol, ephedrine or methadone
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/20Pills, tablets, discs, rods
    • A61K9/2072Pills, tablets, discs, rods characterised by shape, structure or size; Tablets with holes, special break lines or identification marks; Partially coated tablets; Disintegrating flat shaped forms
    • A61K9/2086Layered tablets, e.g. bilayer tablets; Tablets of the type inert core-active coat
    • A61K9/209Layered tablets, e.g. bilayer tablets; Tablets of the type inert core-active coat containing drug in at least two layers or in the core and in at least one outer layer
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/20Pills, tablets, discs, rods
    • A61K9/28Dragees; Coated pills or tablets, e.g. with film or compression coating
    • A61K9/2806Coating materials
    • A61K9/2833Organic macromolecular compounds
    • A61K9/284Organic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyvinyl pyrrolidone
    • A61K9/2846Poly(meth)acrylates
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/20Pills, tablets, discs, rods
    • A61K9/28Dragees; Coated pills or tablets, e.g. with film or compression coating
    • A61K9/2806Coating materials
    • A61K9/2833Organic macromolecular compounds
    • A61K9/2853Organic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyethylene glycol, polyethylene oxide, poloxamers, poly(lactide-co-glycolide)
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/20Pills, tablets, discs, rods
    • A61K9/28Dragees; Coated pills or tablets, e.g. with film or compression coating
    • A61K9/2806Coating materials
    • A61K9/2833Organic macromolecular compounds
    • A61K9/286Polysaccharides, e.g. gums; Cyclodextrin
    • A61K9/2866Cellulose; Cellulose derivatives, e.g. hydroxypropyl methylcellulose
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/20Pills, tablets, discs, rods
    • A61K9/28Dragees; Coated pills or tablets, e.g. with film or compression coating
    • A61K9/2893Tablet coating processes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P25/00Drugs for disorders of the nervous system
    • A61P25/22Anxiolytics
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P25/00Drugs for disorders of the nervous system
    • A61P25/24Antidepressants
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P9/00Drugs for disorders of the cardiovascular system
    • A61P9/10Drugs for disorders of the cardiovascular system for treating ischaemic or atherosclerotic diseases, e.g. antianginal drugs, coronary vasodilators, drugs for myocardial infarction, retinopathy, cerebrovascula insufficiency, renal arteriosclerosis
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P9/00Drugs for disorders of the cardiovascular system
    • A61P9/12Antihypertensives

Definitions

  • the present invention relates to a group-hole release osmotic pump controlled release tablet of a highly permeable drug and a preparation method thereof.
  • the group of pore release osmotic pump controlled release tablets does not need laser drilling, but provides a channel for releasing the drug by adding an appropriate amount of porogen to form a continuous channel, which not only simplifies the preparation process, but also greatly reduces the production cost, and Improve the safety of the formulation.
  • the present invention relates to a novel controlled release osmotic pump of osmotic dry osmotic pump containing venlafaxine or metoprolol or a pharmaceutically acceptable salt thereof. Background technique
  • Osmotic pump developed a double-chamber osmotic pump for the smooth release of the drug; in order to adapt to the circadian rhythm of the human body, a selective release osmotic pump was developed.
  • Laser drilling process to prepare a series of defects in osmotic pump controlled release preparations such as: (1) higher cost: a laser drilling production equipment worth more than 1 million yuan; In addition, the usual carbon dioxide laser life is only Can stimulate 500,000 times, if each piece is punched, a laser tube can only produce 2 to 3 batches of drugs, the cost of equipment and maintenance costs are very expensive; (2) low yield, high labor intensity: laser hit Hole is inevitable There will be leaks (the pickup does not hold the tablets off and fall off), and more (the scanner does not sweep the tablets from the punching position in time), the hole depth is insufficient (laser energy is reduced) and the penetration is not transparent. The film and the punching position are not correct, so the yield is low.
  • An object of the present invention is to provide a group hole release osmotic pump controlled release tablet pharmaceutical preparation which does not require laser perforation and a preparation method thereof.
  • the present invention not only simplifies the formulation process, greatly reduces the production cost, but also improves the safety of the formulation.
  • the invention provides a population release osmotic pump controlled release tablet comprising a core and a semipermeable membrane, wherein the core comprises a main drug, a penetration enhancer and a penetration enhancer, and the semipermeable membrane comprises a film forming material and a porogen.
  • a semi-permeable film may be overlaid with a film coating, which is a common film coating material commonly used in the tablet field.
  • the porogen in the semipermeable membrane is 20% to 45%, preferably 25% to 35% by weight of the semipermeable membrane, and the semipermeable membrane is 10% to 35%, preferably 20% to 30%, of the weight of the core.
  • the garment is preferably from 3% to 6% by weight of the tablet.
  • porogen for the group of pore release osmotic pump controlled release tablets described above, wherein the porogen is: It may be one of polyethylene glycol (molecular weight preferably 2000 to 6000), hydroxypropyl cellulose, micronized sugar, sodium chloride, mannitol, sorbitol or a mixture of two or more thereof, preferably polyethyl b. Glycol.
  • the main drug suitable for use in the present invention is a drug having good water solubility and excellent permeability.
  • the present inventors have found in practice that when the main drug itself has good water solubility and extremely high permeability, it is completely possible to release the drug through the semipermeable membrane without laser perforation.
  • the invention fully utilizes the solubility and permeability of the drug itself, and combines the good water solubility and permeability of the drug itself to form a group hole release osmotic pump controlled release tablet preparation which does not require laser drilling, thereby saving the invention.
  • a large amount of investment has greatly reduced the labor intensity and improved the safety of drugs.
  • venlafaxine and metoprolol or a pharmaceutically acceptable salt thereof are preferred, and venlafaxine hydrochloride and metoprolol tartrate are particularly preferred.
  • the semipermeable membrane forming material may be one of cellulose acetate, ethyl cellulose, hydroxypropyl methyl cellulose, polyacrylic resin A mixture of two or more kinds thereof is preferably cellulose acetate.
  • the penetration enhancer may be one of sodium chloride, chlorinated clock, mannitol, lactose, sorbitol or a mixture of two or more thereof It is preferably sodium chloride or mannitol.
  • the semipermeable membrane may further comprise a plasticizer.
  • the plasticizer may be one of triethyl citrate, dibutyl sebacate, phthalate, polyethylene glycol 4000 or a mixture of two or more thereof, preferably azelaic acid. Dibutyl ester.
  • the core may further comprise a penetration enhancer.
  • the penetration enhancer may be one of microcrystalline cellulose, lactose, alginic acid, alginate, propylene glycol alginate, polyethylene glycol or two of them.
  • the above mixture is preferably microcrystalline cellulose, alginic acid or propylene glycol alginate.
  • the core may further comprise a lubricant.
  • the lubricant may be magnesium stearate, calcium stearate, zinc stearate, glyceryl monostearate, sodium stearyl fumarate, polyoxyethylene monostearate, monolauric sucrose.
  • sodium lauryl sulfate, magnesium lauryl sulfate, magnesium lauryl sulfate, talc, or a mixture of two or more thereof, preferably magnesium stearate, can be mixed during the preparation of the core
  • the material is wet granulated or dry granulated.
  • water or anhydrous ethanol, isopropanol, ethanol, ethanol or a mixture of isopropyl alcohol and water may be used as the binder.
  • excipients such as the penetration enhancer, the penetration enhancer, the film-forming material, the plasticizer, and the lubricant described above can be appropriately selected depending on the release effect, the nature of the drug, and the specific application.
  • the appropriate amount can be determined by routine testing.
  • the group of holes releases an osmotic pump controlled release sheet, and if necessary, a film coating layer may be coated on the outer surface of the semipermeable membrane.
  • the film coating layer may further contain The main medicine.
  • a pharmaceutically conventional film coating material such as a low viscosity hydroxypropyl methylcellulose, a polyacrylic resin or the like, a film forming material, triethyl citrate, dibutyl sebacate, phthalic acid ester,
  • a plasticizer such as polyethylene glycol 4000 is coated on the semipermeable membrane with a film coating layer containing a main drug by a conventional film coating technique to provide an immediate release portion of the drug, thereby achieving a rapid onset effect.
  • a method for preparing a group hole release osmotic pump controlled release tablet comprising the steps of: (1) mixing and granulating a main drug, an auxiliary material for preparing a tablet core; , performing tableting to obtain a core; (2) preparing a semipermeable membrane material with acetone, ethanol or isopropanol (preferably 90% isopropanol) to form a coating liquid, and preparing step (1)
  • the core of the tablet is placed in a coating machine and coated with a coating liquid to a semi-permeable film. 10% ⁇ 35% of the weight of the core, after taking out, the solvent is evaporated to obtain a coated tablet.
  • the outlet air temperature of the semipermeable membrane is controlled to be below 25 ° C
  • the inlet air temperature is controlled to be below 35 ° C.
  • the material temperature is controlled between 25 and 30 °C.
  • the method described above may further comprise the step of placing the semipermeable membrane-coated tablet obtained in the step (2) in a coating machine, and performing film coating with the film coating liquid.
  • a group hole release osmotic pump controlled release tablet further coated with a film coating layer containing a main drug outside the semipermeable membrane was prepared.
  • the film coating containing the main drug it is preferably 20% to 40% of the main drug and 50% to 80% of the film-forming material. / «, plasticizer 5% ⁇ 10%, and the main drug content in the main drug-containing film coat is 10% to 20% of the main drug content in the core.
  • the main drug is preferably venlafaxine, metoprolol or a pharmaceutically acceptable salt thereof, and particularly preferably venlafaxine hydrochloride and metoprolol tartrate.
  • venlafaxine hydrochloride ( ⁇ ) -1- [2-(dimethylamino)-1-(4-methoxyphenyl)ethyl]cyclohexanol hydrochloride.
  • the chemical structure is as follows:
  • Venlafaxine is a serotonin (5-HT)-norepinephrine (NE) reuptake inhibitor that exerts an antidepressant effect by significantly inhibiting the reuptake of 5 -HT and NE.
  • Venlafaxine enhances the activity of certain neurotransmitters in the central nervous system of humans.
  • Venlafaxine and its active metabolite 0-desmethylvenlafaxine (0DV) can effectively inhibit the reuptake of serotonin and norepinephrine, and also inhibit the reuptake of dopamine. This product is suitable for all types of depression, including depression with anxiety, and extensive focus Consider the disease.
  • the recommended starting dose of venlafaxine is 75 mg/day, once a day, and if necessary, the dose can be increased up to a maximum of 225 mg/day (interval not less than 4 days, 75 mg/day each).
  • the initial dose of patients with impaired liver function is reduced by 50%, and individual patients need to be dosed individualized. In patients with impaired renal function, the total daily dose is reduced by 25-50%. Older patients should be given individualized doses, and special attention should be paid when increasing the dose.
  • the present invention provides a venlafaxine hydrochloride hole release osmotic pump controlled release tablet, which is composed of a core, a semipermeable membrane and a selective a film composition containing a main drug located outside the semipermeable membrane, wherein the core of the tablet is calculated by weight percentage, containing 25% to 50% of venlafaxine hydrochloride and 10% to 35% of penetration enhancer.
  • a venlafaxine hydrochloride hole release osmotic pump controlled release tablet which is composed of a core, a semipermeable membrane and a selective a film composition containing a main drug located outside the semipermeable membrane, wherein the core of the tablet is calculated by weight percentage, containing 25% to 50% of venlafaxine hydrochloride and 10% to 35% of penetration enhancer.
  • said semi-permeable membrane calculated by weight percentage, containing film-forming material 50% ⁇ 70%, porogen 20% ⁇ 45%,
  • the plasticizer is 3% to 10%
  • the semipermeable membrane is 10% to 35% by weight of the core; if the tablet further has a film coating containing the main drug, the film containing the main drug, Calculated by weight percentage, venlafaxine hydrochloride 20% ⁇ 40%, film forming material 50% ⁇ 80%, plasticizer % ⁇ 10%, and the main drug-containing film coating venlafaxine hydrochloride It is 10% ⁇ 20% of the weight of venlafaxine hydrochloride in the core.
  • the core contains venlafaxine hydrochloride, microcrystalline cellulose, sodium chloride and stearin Magnesium acetate
  • the semipermeable membrane contains cellulose acetate
  • polyethylene glycol (6000) polyethylene glycol (6000)
  • dibutyl sebacate the selective main drug-containing film coating contains venlafaxine hydrochloride.
  • the film is coated with the above-menti
  • metoprolol group hole release osmotic pump controlled release tablet is metoprolol group hole release osmotic pump controlled release tablet, especially the group hole dry osmotic pump control of metoprolol tartrate Dry film, metoprolol tartrate English name: Metoprolol Tar trate, chemical name: 1-isopropylamino-3-(p-(2-decyloxy)phenoxy]-2-propanol L ( +) - Tartrate, the chemical structure is as follows:
  • Metoprolol tartrate belongs to class 2A, a beta 1-receptor blocker (cardiac selective beta-blocker) with no partial agonistic activity. It selectively blocks ⁇ 1-receptors, has no sputum (partial agonistic activity), and has no membrane stabilizing effect.
  • the effects of metoprolol on the heart such as slowing heart rate, inhibiting cardiac contractility, reducing self-discipline, and delaying atrioventricular conduction time, are similar to propranolol and atenolol (AT), which increase the exercise test.
  • the effects of blood pressure and heart rate are similar to those of PP and AT. It is suitable for the treatment of diseases such as hypertension and angina pectoris.
  • Metoprolol tartrate is a safe and effective new adrenergic receptor blocker with a clear antihypertensive effect. It has a slowing effect on heart rate, which can effectively reduce blood pressure and heart rate during strenuous exercise, and also improve symptoms such as headache, chest tightness and palpitations.
  • the effect on heart rate in There was no significant difference between the two weeks and four weeks after taking the drug. It can significantly reduce renal vascular resistance, and long-term use has a protective effect on heart and kidney, which can be used as an ideal antihypertensive drug.
  • the present invention provides a metoprolol tartrate group hole release osmotic pump controlled release tablet, which is composed of a core and a semipermeable membrane, wherein The 5% by weight of the tablet core, containing metoprolol tartrate 12% ⁇ 25%, penetration enhancer 10% ⁇ 65 > penetration enhancer 15% ⁇ 40%, lubricant 0. 5% ⁇ 1%
  • the semipermeable membrane is 50% to 70% by weight of the film-forming material, 20% to 45% of the porogen, 3% to 10% of the plasticizer, and the semi-permeable membrane is the core weight. 10% ⁇ 35% 0
  • the invention unexpectedly finds that the group hole release osmotic pump controlled release sheet of the invention does not need to perform perforation, but forms a continuous channel by using a larger amount of porogen, thereby avoiding preparation by laser drilling process. A series of defects in osmotic pump controlled release formulations.
  • the group hole release osmotic pump controlled release tablet of the present invention has outstanding advantages compared with the existing osmotic pump preparation, for example:
  • (2) core coating take cellulose acetate, add acetone 600ml, stir to dissolve; another take polyethylene glycol in a 50ml volumetric flask, add water to dissolve, add to the above 1500ml cellulose acetate acetone solution The mixture was stirred while stirring to completely dissolve the polyethylene glycol, and dibutyl sebacate was added to shake the hook to prepare a coating liquid.
  • the core piece prepared above was placed in a coating machine, and hot air was blown to maintain a temperature between 30 and 40 ° C, and sprayed into the coating liquid. Place the solvent in a 4 (TC environment) and get it.
  • the release rate of the preparation was determined by the first method of the Chinese Pharmacopoeia 2000 edition two appendix XD. The results were as follows: 4% of the drug was released in 2 hours, 31% in 4 hours, 70% in 8 hours, and 81% in 12 hours. Released 93% of the drug in an hour. The cumulative release curve is shown in Figure 1.
  • Example 2
  • Triethyl citrate 2g 1000 pieces were prepared by the following preparation method:
  • (1) core preparation take mannitol, pass 10G mesh sieve, mix well with venlafaxine hydrochloride, alginic acid, propylene glycol alginate, use ethanol as wetting agent, make soft material, sieve through 30 mesh Dry at 4 5 °C for 2 hours, whole grain, add magnesium stearate, mix, compress, and compress 1000 pieces by conventional tableting technology.
  • the release of the preparation was determined by the Chinese Pharmacopoeia 2000 edition two appendix XD first method. The results were as follows: 11% dry drug release was started in 2 hours, 27% release in 4 hours; 72% release in 8 hours; 86% release in 12 hours; Released 93% of the drug in an hour. Cumulative release curve See Figure 2.
  • the film coating layer containing the main drug is a film coating layer containing the main drug:
  • Core preparation sodium chloride will be used. 75 g of venlafaxine hydrochloride, 30 g of microcrystalline cellulose, and 40 g of sodium chloride were passed through a 60 mesh sieve and mixed. Add 10% polyvinylpyrrolidone k-30 ethanol solution to make a soft material, pass 30 mesh, granulate, and heat it in an oven at 40 °C. The obtained granules were mixed with the remaining microcrystalline cellulose and magnesium stearate, and added to a tableting machine for tableting.
  • (2) core pack semi-permeable membrane take the appropriate amount of acetone, add cellulose acetate to dissolve; another take polyethylene glycol (6000) plus water to dissolve, slowly add to the above cellulose acetate acetone solution, then add bismuth The dibutyl acid is dissolved to obtain a coating liquid.
  • the coated tablet (3) is coated with the film coating containing the main drug: take 70% ethanol, add hydroxypropylmethyl cellulose to dissolve, and then add hydrochloric acid Lafaxine and polyethylene glycol (4000) are dissolved to obtain a film coating solution containing the main drug.
  • Metoprolol tartrate 50 Og
  • Adhesive preparation 95% ethanol 10g, water 10g mixed evenly, formulated into 50% ethanol solution.
  • Preparation of semi-permeable membrane coating solution take the prescribed amount of cellulose acetate, add appropriate amount of acetone to prepare 4% cellulose acetate acetone solution (g / g) for use; take the prescribed amount of PEG6000 under constant stirring, slow Adding to water, preparing 27.8% PEG6000 aqueous solution (g / g) for use; PEG600G aqueous solution is slowly added to the cellulose acetate acetone solution while stirring, stirring until mixing; Dibutyl sebacate, slowly added to the solution, stirred evenly, used as a coating solution.

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Description

高渗透性药物的群孔释放渗透泵控释片及其制备方法 技术领域
本发明涉及高渗透性药物的群孔释放渗透泵控释片及其制备 方法。 该群孔释放渗透泵控释片无需进行激光打孔,而是通过加 入适量的致孔剂形成连续的孔道的方式为药物的释放提供通道, 不仅简化了制剂工艺,大大降低了生产成本,而且提高了制剂的安 全性。 在具体的实施方案中,本发明涉及新型的含有文拉法辛或 美托洛尔或其可药用盐的群孔幹放渗透泵控释片。 背景技术
1955年 Rose与 Nel son两位澳大利亚学者发明了用于牲畜给 药的渗透泵, 20 世纪 70 年代, Alza 公司对渗透泵进行了简化改 进, 1974年 Theeuwes发明了单室渗透泵,使渗透泵简化为普通包 衣片,并在片剂的一侧打孔的简单形式,至此渗透泵成为临床上可 以应用的一种剂型,由此产生了一系列的单室渗透泵控释片剂型 。 80 年代至今对渗透泵的改进研究工作一直没有停止,为了满足 将难溶性药物制成渗透泵或将水溶性较好但自身不能产生渗透压 的药物制成渗透泵,开发出了单室双层渗透泵;为了使药物释放平 稳开发出了双室渗透泵;为了适应人体的生理节律开发出了择时 释放渗透泵等。
激光打孔工艺制备渗透泵控释制剂所存在的一系列缺陷,例 如:(1)成本较高:一台激光打孔的生产设备价值在 100万元以上; 此外,通常的二氧化碳激光器的寿命仅能激发 50 万次,如果每片 打孔一个,一只激光管仅能生产 2至 3批的药品,设备的费用及其 维护费用十分昂贵; (2)成品率低、劳动强度大:激光打孔不可避免 会出现漏打(拾片器没有将药片抓牢而脱落)、多打(扫片器没有及 时将药片从打孔位置扫落)、打孔深度不足(激光能量下降)而未穿 透半透膜、打孔位置不正等问题,因此成品率较低。 由于目前还没 有机器筛选不合格渗透泵的方法,生产过程中必须对漏打、 多打、 打孔不正以及打孔深度不足的片剂进行人工筛选。 这是一项十分 费时费力的工作。 通常一个批次的样品为 20万片,人工选片的工 作需要 7天才能完成,劳动强度非常大。
尽管渗透泵的设计构思十分精巧,但工业化生产的工序过多, 各工序控制指标要求十分严格,生产难度大,生产周期长,成本高、 废品率高等不足严重限制了渗透泵产品的推广。 从渗透泵的发展 历程看,每一次渗透泵结构和工艺的简化都加速了渗透泵工业化 的发展,因此,研究结构简单、 工业化生产难度低、 生产成本低廉 的渗透泵是本领域的重要方向。 发明内容
本发明的目的旨在提供了一种无需进行激光打孔的群孔释放 渗透泵控释片药物制剂及其制备方法。 本发明不仅简化了制剂工 艺,大大降低了生产成本,而且提高了制剂的安全性。
为实现上述发明主旨,本发明采用如下技术方案:
本发明提供了一种群孔释放渗透泵控释片,其包括片芯和半 透膜,其中片芯含有主药、 促渗剂和助渗剂,半透膜含有成膜材料 和致孔剂,如有必要还可以在半透膜外包一层薄膜衣,薄膜衣为片 剂领域常用的普通薄膜包衣材料。 半透膜中所述致孔剂为半透膜 重量的 20% ~ 45%,优选 25% ~ 35%,半透膜为片芯重量的 10% ~ 35%, 优选 20% - 30%,薄膜衣优选为片重的 3% ~ 6%。
对于上文所述的群孔释放渗透泵控释片,其中所述的致孔剂: 可以为聚乙二醇(分子量优选 2000 ~ 6000)、 羟丙基纤维素、 微粉 化的糖、 氯化钠、 甘露醇、 山梨醇中的一种或其两种以上的混合 物,优选为聚乙二醇。
适用于本发明的主药为具有良好的水溶性和极强的渗透性 的药物。 本发明人在实践过程发现,当主药自身具有良好的水溶 性和极强的渗透性时,完全可以在不进行激光打孔的情况下使药 物通过半透膜释放出来。 本发明充分利用了药物自身的溶解性和 渗透性,将药物自身良好的水溶性和渗透性的完美结合,制成了不 需要激光打孔的群孔释放渗透泵控释片制剂,从而节省了大量的 投资,大大降低了劳动强度,提高了药物的安全性。 在本发明具体 的实施方式中优选文拉发辛和美托洛尔或其可药用盐,特别优选 盐酸文拉法辛和酒石酸美托洛尔。
对于上文所述的群孔释放渗透泵控释片,其中所述的半透膜 成膜材料可以为醋酸纤维素、 乙基纤维素、 羟丙基甲基纤维素、 聚丙烯酸树脂中的一种或其两种以上的混合物,优选为醋酸纤维 素。
对于上文所述的群孔释放渗透泵控释片,其中所述的促渗剂 可以为氯化钠、 氯化钟、 甘露醇、 乳糖、 山梨醇中的一种或其两 种以上的混合物,优选为氯化钠或甘露醇。
对于上文所述的群孔释放渗透泵控释片,其中所述的半透膜 中还可以包含增塑剂。 所述的增塑剂可以为柠檬酸三乙酯、 癸二 酸二丁酯、邻苯二甲酸酯、聚乙二醇 4000中的一种或其两种以上 的混合物,优选为癸二酸二丁酯。
对于上文所述的群孔释放渗透泵控释片,其中所述的片芯中 还可以包含助渗剂。 其中所述的助渗剂可以为微晶纤维素、乳糖、 海藻酸、 海藻酸盐、 丙二醇海藻酸酯、 聚乙二醇中的一种或其两 种以上的混合物,优选为微晶纤维素、海藻酸或丙二醇海藻酸酯。 对于上文所述的群孔释放渗透泵控释片,其中所述的片芯中 还可以包含润滑剂。 所述的润滑剂可以为硬脂酸镁、 硬脂酸钙、 硬脂酸锌、 单硬脂酸甘油脂、 硬脂富马酸钠、 聚氧乙烯单硬脂酸 酯、 单月桂蔗糖酸酯、 月桂醇硫酸钠、 月桂醇硫酸镁、 十二烷基 硫酸镁、滑石粉中的一种或其两种以上的混合物,优选为硬脂酸镁 在片芯的制备过程中,可以将混合好的物料采用湿法制粒或 干法制粒。 湿法制粒时可以采用水或者无水乙醇、异丙醇、 乙醇、 乙醇或异丙醇与水的混合物为粘合剂。
对于上文所述的促渗剂、 助渗剂、 成膜材料、 增塑剂以及润 滑剂等辅料,可以根据释放效果以及药物性质和具体应用等进行 适当选择。 对于本领域技术人 来说,根据本发明的描述,可以通 过常规试猃确定其适宜用量。
作为本发明的一个具体实施方案,所述的群孔释放渗透泵控 释片,如果需要,还可以在半透膜外面包覆薄膜衣层,选择性的,所 述薄膜衣层中可以进一步含有主药。 可以选用药学上常规的薄膜 包衣材料,例如低粘度羟丙基甲基纤维素、聚丙烯酸树脂等成膜材 料,柠檬酸三乙酯、癸二酸二丁酯、邻苯二甲酸酯、聚乙二醇 4000 等增塑剂,通过常规的薄膜包衣技术,在半透膜外包覆含主药的薄 膜衣层,用于提供速释部分的药物,从而达到快速起效的作用。
在本发明的另一方面,提供了一种制备上文所述的群孔释放 渗透泵控释片的方法,其中包括如下步骤: (1)将制备片芯的主药、 辅料混合、 制粒,进行压片,制得片芯;(2)将制备半透膜的材料用 丙酮,乙醇或异丙醇(优选 90%的异丙醇)配成包衣液,将步驟(1) 制得的片芯置于包衣机中,用包衣液进行包衣,至半透膜重量占片 芯重量的 10% ~ 35%,取出后挥干溶剂,制得包衣片。 在优选的实 施方式中,包半透膜的出风温度控制在 25 °C以下,进风温度控制 在 35 °C以下。 物料温度控制在 25- 30°C之间。
如果需要的话,对于上文所述的方法,其中还可以包括将步 骤(2)所制得的包有半透膜的药片置于包衣机中,用薄膜包衣液进 行薄膜包衣的步骤,制得在半透膜外进一步包覆含主药的薄膜包 衣层的群孔释放渗透泵控释片。 在所述的含主药的薄膜衣中,按 重量百分比计算,优选含主药 20% ~ 40%,成膜材料 50% ~ 80。/«,增塑 剂 5% ~ 10%,且所述的含主药的薄膜衣中的主药含量为所述的片 芯中主药含量的 10% ~ 20%。
作为本发明一个具体实施方式,其中的主药优选文拉法辛、 美托洛尔或其可药用盐,特别优选盐酸文拉法辛和酒石酸美托洛 尔。
盐酸文拉法辛化学名为: (±) -1- [2- (二甲氨基 ) -1- (4-甲氧 苯基)乙基] 环己醇盐酸盐。 化学结构式如下:
Figure imgf000006_0001
文拉法辛为 5-羟色胺(5- HT) -去甲肾上腺素(NE)再摄取抑 制剂,通过显著抑制 5- HT和 NE的再摄取而发挥抗抑郁作用。 文拉 法辛能增强人的中枢神经系统某些神经递质的活性。 文拉法辛及 其活性代谢物 0-去甲基文拉法辛(0DV)能有效地抑制 5-羟色胺和 去甲肾上腺素的再摄取,对多巴胺的再摄取也有一定抑制作用。 本品适用于各种类型抑郁症,包括伴有焦虑的抑郁症,及广泛性焦 虑症。
文拉法辛临床上起始推荐剂量为 75mg/天,每天 1次,如有必 要,可递增剂量至最大为 225mg/天(间隔时间不少于 4天,每次增 加 75mg/天)。 肝功能损伤病人的起始剂量降低 50%,个别病人需 进行剂量个体化。 肾功能损伤病人,每天给药总量降低 25-50%。 老年病人按个体化给药,增加用药剂量时应格外注意。
作为本文所述的群孔释放渗透泵控释片的实施方案之一,本 发明提供了一种盐酸文拉法辛群孔释放渗透泵控释片,由片芯、半 透膜和选择性的位于半透膜外的含主药的薄膜衣组成,其中,所述 的片芯中,按重量百分比计算,含盐酸文拉法辛 25% ~ 50%、促渗剂 10% ~ 35%,助渗剂 20% ~ 40%,润滑剂 0. 5% ~ 1%,所述的半透膜中, 按重量百分比计算,含成膜材料 50% ~ 70%、 致孔剂 20% ~ 45%、 增 塑剂 3% ~ 10%,且半透膜为片芯重量的 10% ~ 35%;如果所述片剂还 具有含主药的薄膜衣,则所述的含主药的薄膜衣中,按重量百分比 计算,含盐酸文拉法辛 20% ~ 40%,成膜材料 50% ~ 80%,增塑剂 % ~ 10%,且所述的含主药的薄膜衣中盐酸文拉法辛为所述的片芯中盐 酸文拉法辛重量的 10% ~ 20%。
其中,作为上文所述的文拉法辛群孔释放渗透泵控释片的一 个具体实施方式,所述的片芯中含有盐酸文拉法辛、 微晶纤维素、 氯化钠和硬脂酸镁,所述的半透膜中含有醋酸纤维素、 聚乙二醇 (6000) 、 癸二酸二丁酯,所述的选择性的含主药的薄膜衣中含有 盐酸文拉法辛、 羟丙基甲基纤维素和聚乙二醇(4000) ,且通过如 下方法制片:(1)片芯制备——盐酸文拉法辛、 氯化钠和部分微晶 纤维素混匀、制颗粒,所得颗粒与其余的微晶纤维素和硬脂酸镁混 勾,进行压片;(2)片芯包衣一一用适宜溶剂溶解醋酸纤维素、聚乙 二醇 6000和癸二酸二丁酯,配成包衣液备用,取步骤(1)制得的片 芯置包衣机中,用包衣液进行包衣,挥干溶剂,制得包衣片;(3)选 择性的,将包衣片包覆含主药的薄膜衣层一一用适宜溶剂溶解盐 酸文拉法辛、 羟丙基甲基纤维素和聚乙二醇 4000,配成含主药的 薄膜包衣液备用,取步骤(2)制得的包衣片置包衣机中,用上述含 主药的薄膜包衣液进行包衣,挥干溶剂,即得。
作为上文所述的群孔释放渗透泵控释片的另一个具体实施方 式为美托洛尔的群孔释放渗透泵控释片,特别是酒石酸美托洛尔 的群孔幹放渗透泵控幹片,酒石酸美托洛尔英文名为: Metoprolol Tar trate,化学名为: 1-异丙氨基- 3- [对-(2-曱氧乙基)苯氧基 ] -2-丙醇 L (+) -酒石酸盐,化学结构式如下:
Figure imgf000008_0001
分子式: (C1SH25N03) 2 · C4H606 分子量: 684. 82。 酒石酸美托洛尔属于 2A类即无部分激动活性的 β 1-受体阻断药(心 脏选择性 β -受体阻断药)。 它对 β 1-受体有选择性阻断作用,无 ΡΑΑ (部 分激动活性),无膜稳定作用。 美托洛尔对心脏的作用如减慢心率、抑制 心收缩力、降低自律性和延緩房室传导时间等与普萘洛尔、阿替洛尔(AT) 相似,其降低运动试验时升高的血压和心率的作用也与 PP、 AT相似。 适 用于高血压、 心绞痛等疾病的治疗。 酒石酸美托洛尔是一种安全有效的新型肾上腺素受体阻断剂,具有 明确的降压疗效。 对心率具有减慢作用,可以有效地降低剧烈运动时血 压及心率,对头痛、胸闷、 心悸等症状也有相应改善。 对心率的影响,在 服药 2周与 4周后并无明显差别。 可使肾血管阻力明显下降,长期服用对 心肾有保护作用,是可以作为一种理想的降压药物。
作为本文所述的群孔释放渗透泵控释片的另一个实施方案,本发 明提供了一种酒石酸美托洛尔群孔释放渗透泵控释片,由片芯、半透膜 组成,其中,所述的片芯中,按重量百分比计算,含酒石酸美托洛尔 12% ~ 25%, 促渗剂 10% ~ 65 > 助渗剂 15% ~ 40%、 润滑剂 0. 5% ~ 1%, 所述的半透膜中,按重量百分比计算,含成膜材料 50% ~ 70%、 致孔剂 20% - 45%, 增塑剂 3% ~ 10%,且半透膜为片芯重量的 10% ~ 35%0
本发明意外地发现,本发明所述的群孔释放渗透泵控释片,不 需要进行打孔,而是通过使用较大量的致孔剂形成了连续孔道,从 而避免了通过激光打孔工艺制备渗透泵控释制剂所存在的一系列 缺陷。
本发明所述的群孔释放渗透泵控释片,与已有的渗透泵制剂 相比,具有突出优点,例如:
(1)无需激光打孔,成本降低。 由于生产企业不需购进价格 昂贵的激光打孔设备,无需经常更换易损的激光管,使用通常的压 片设备和包衣设备即可生产出释放效果良好的控释片,使设备成 本大大降低。
(2)工艺简化,劳动强度降低,工艺的可靠性增加。 由于减少 了激光打孔、 人工选片这两道工序,工艺变得相对较简单,因而提 高了工艺的可靠性和稳定性。 生产中由于加工工艺过程控制不 当、 出现不合格批次的机率大大降低。
(3)制剂的安全性提高。 由于采用群孔方式释放药物,比采 用单一的激光孔道要安全得多,群孔方式在药物进入体内后遇到 消化液,制孔剂会自行产生孔道,不会出现激光器漏打、 多打、 打 孔深度不足和打孔不正的问题;也不会出现单一孔道被食物堵塞 出现的无效或突然释放等问题,因而安全性大大提高。 附图说明
图 1:实施例 1的累积释放曲线;
图 2:实施例 2的累积释放曲线;
图 3:实施例 3的累积幹放曲线。
图 4:实施例 4的累积释放曲线。
具体实施方式
以下通过实施例来进一步解释或说明本发明内容。 所述的实 施例仅为了帮助理解本发明内容,不应被理解为对本发明主旨和 保护范围的限定。
本发明的释放度测定方法参见中国药典 2005 年版二部附录 XD笫一法,以水为释放介质。 实施例 1
片芯组成:
盐酸文拉法辛 75g
微晶纤维素 45g
氯化钠(NaC l) 35g
硬脂酸镁 lg
半透膜组成:
醋酸纤维素 21g
聚乙二醇 6000 9g
癸二酸二丁酯 2g
通过如下制备方法制成 1000片:
(1)片芯制备 取氯化钠,过 100 目筛,与盐酸文拉法辛,微晶 纤维素混合均匀,以乙醇为润湿剂,制软材,过 30 目筛制粒, 45 °C 烘干 2 小时,整粒,加入硬脂酸镁,混勾,压片,釆用常规压片技术 压制 1000片。
(2)片芯包衣:取醋酸纤维素,加丙酮 600ml,搅拌使溶解;另 取聚乙二醇置 50ml 的量瓶中,加水使其溶解后,加入到上述 1500ml 醋酸纤维素丙酮溶液中,边加边搅拌,使聚乙二醇全部溶 解,加入癸二酸二丁酯摇勾,制得包衣液。 将上述制得的片芯置于 包衣机中,通热风,保持温度在 30- 40 °C之间,喷入包衣液。 放置 于 4 (TC的环境中挥干溶剂,即得。
采用中国药典 2000年版二部附录 XD第一法测定该制剂的释 放度,测定结果: 2小时开始释放药物 4%, 4小时幹放 31%; 8小时释 放 70%; 12小时释放 81%, 24小时释放药物 93%。 累积释放曲线见 附图 1。 实施例 2
片芯组成:
盐酸文拉法辛 75g
海藻酸 30g
丙二醇海藻酸酯 20g
甘露醇 30g
硬脂酸镁 2g
半透膜组成:
聚丙烯酸树脂 5g
乙基纤维素 14g
羟丙基纤维素 6g
柠檬酸三乙酯 2g 通过如下的制备方法制成 1000片:
(1)片芯制备:取甘露醇,过 10G 目筛,与盐酸文拉法辛、 海藻 酸、 丙二醇海藻酸酯混合均匀,以乙醇为润湿剂,制软材,过 30 目 筛制粒, 45 °C烘干 2小时,整粒,加入硬脂酸镁,混匀,压片,釆用常 规压片技术压制 1000片。
(2)片芯包衣:取聚丙烯酸树脂、 乙基纤维素、羟丙基纤维素, 加乙醇 1500ml,搅拌使溶解。 加入柠檬酸三乙酯,摇勾,制得包衣 液。 将上述制得的片芯置于包衣机中,通热风,保持温度在 30 ~ 40°C之间,喷入包衣液。 放置于 40°C的环境中挥干溶剂,即得。
采用中国药典 2000年版二部附录 XD第一法测定该制剂的释 放度,测定结果: 2小时开始幹放药物 11%, 4小时释放 27%; 8小时 释放 72%; 12小时释放 86%; 24小时释放药物 93%。 累积释放曲线 见附图 2。 实施例 3
片芯组成:
盐酸文拉法辛 75g
微晶纤维素 60g
氯化钠 40g
硬脂酸镁 0. 9g
半透膜组成:
醋酸纤维素 25g
聚乙二醇(6000) Hg
癸二酸二丁酯 2. 5g
含主药的薄膜衣层组成:
文拉法辛 l Og 羟丙曱基纤维素 20g
聚乙二醇(4000) 2 g
通过如下的制备方法制成 1000片:
(1)片芯制备:将氯化钠,备用。 将盐酸文拉法辛 75g、微晶纤 维素 30g、 氯化钠 40g,过 60 目筛,混合均勾。 加入 10%聚乙烯吡 咯烷酮 k-30乙醇溶液适量制成软材,过 30目 ,制粒,置于烘箱中 40°C加热干燥。 所制得的颗粒加其余的微晶纤维素和硬脂酸镁混 匀,加入压片机进行压片。
(2)片芯包半透膜:取丙酮适量,加入醋酸纤维素使溶解;另取 聚乙二醇(6000)加水适量使溶解,緩慢加入到上述醋酸纤维素丙 酮溶液中,再加入癸二酸二丁酯使溶解,即得包衣液。
取片芯,置包衣锅中,通热风,保持温度在 30 ~ 40 °C之间,喷 入包衣液进行包衣。 放置于 40°C的环境中挥千溶剂,即得包衣片 (3)包覆含主药的薄膜衣层:取 70%乙醇适量,加羟丙甲基纤 维素使溶解,再加入盐酸文拉法辛和聚乙二醇(4000)使溶解,即得 含主药的薄膜包衣液。
取上述的包衣片,置包衣锅中,通热风,保持温度在 30 ~ 35 °C 之间,喷入上述的含主药的薄膜包衣液进行包衣。 放置于 40°C的 环境中挥干溶剂,即得。
按照上述方法,制备三批产品。 采用中国药典 2000年版二部 附录 XD第一法测定该制剂的译放度,测定结果: 2小时开始幹放药 物 10 ~ 15%, 4小时释放 25% ~ 30%; 6小时释放 50 ~ 55%, 8小时释放 60% ~ 70%; 12小时释放 75% ~ 85%; 24小时释放药物 90% ~ 95 0 累 积释放曲线见附图 3。
上述的试验还说明,本发明所述的群孔释放渗透泵控释片工 艺的可操作性良好,具有良好的可重复性。 实施例 4
片芯处方组成:
酒石酸美托洛尔 50. Og
微晶纤维素 50. Og
乳糖 147. 5g
硬脂酸镁 2. 5g
半透膜组成:
醋酸纤维素 35g
聚乙二醇(PEG) 6000 12g
癸二酸二丁酯 3. 5g
丙酮 837 g
水 30 g
通过如下的制备方法制成 1000片:
粘合剂配制: 95%乙醇 10g,水 10g混合均匀,配成 50%的乙醇溶 液。 半透膜包衣液配制:取处方量的醋酸纤维素,加入适量的丙酮 配制成 4%的醋酸纤维素丙酮溶液(g/g)备用;取处方量的 PEG6000 在不断搅拌的情况下,緩慢加入到水中,配成 27. 8%的 PEG6000水溶 液(g/g)备用;将 PEG600G水溶液在不断搅拌的情况下,緩慢加入到 醋酸纤维素丙酮溶液中,搅拌至混合均勾;取处方量的癸二酸二丁 酯,緩慢加入到溶液中,搅拌均匀,作为包衣液备用。
取处方量的酒石酸美托洛尔、乳糖过 80目混合均勾,加入微晶 纤维素混合均勾,加入适量(约 20g)黏合剂制粒; 20 目整粒,50°C干 燥,水份控制在 1%以下。 20 目整粒,加入处方量的硬脂酸镁混合均 匀, 9号浅凹冲压片,硬度 8kg。 包衣增重 20%。 采用中国药典 2000年版二部附录 XD第一法测定该制剂的释 放度,测定结果: 2小时开始释放药物 22%; 6小时释放 62%, 8小时 释放 76%; 12小时释放 89%; 24小时释放药物 92%。 累积幹放曲线 见附图 4。
根据上述的实施例对本发明作了详细描述。 需说明的是,以 上的实施例仅仅为了举例说明本发明而已。 在不偏离本发明的精 神和实质的前提下,本领域技术人员可以设计出本发明的多种替 换方案和改进方案,其均应被理解为在本发明的保护范围之内。

Claims

权 利 要 求
1. 一种高渗透性药物的群孔释放渗透泵控释片,其主要结构 包括片芯和半透膜,其中片芯含有主药、 促渗剂和助渗剂,半透膜 含有成膜材料和致孔剂,半透膜的外面还可以选择性的包覆普通 的薄膜衣,其中所述致孔剂为半透膜重量的 20°/。 ~ 45%,优选 25% ~ 35%,半透膜为片芯重量的 10% ~ 35%,优选 20% ~ 30°/o0
2. 根据权利要求 1所述的群孔释放渗透泵控释片,其中所述主药 自身具有良好的水溶性和极强的渗透性,优选主药为文拉发辛和 美托洛尔或其可药用盐,特别优选盐酸文拉法辛和酒石酸美托洛 尔。
3. 根据权利要求 1-2任意一项所述的群孔释放渗透泵控释片 其中所述的致孔剂选自聚乙二醇(分子量优选 2000 ~ 6000)、羟丙 基纤维素、 微粉化的糖、 微粉化氯化钠、 微粉化甘露醇、 微粉化 山梨醇中的一种或其两种以上的混合物,优选为聚乙二醇或羟丙 基纤维素。
4. 根据权利要求 1-3任意一项所述的群孔幹放渗透泵控释片 其中所述的半透膜成膜材料选自醋酸纤维素、 乙基纤维素、 羟丙 基甲基纤维素、 聚丙烯酸树脂中的一种或其两种以上的混合物, 优选为醋酸纤维素。
5. 根据权利要求 1-4任意一项所述的群孔释放渗透泵控释片 其中所述的促渗剂选自氯化钠、 氯化钾、 甘露醇、 乳糖、 山梨醇 中的一种或其两种以上的混合物,优选为氯化钠或甘露醇。
6. 根据权利要求 1-5任意一项所述的群孔释放渗透泵控释片 其中所述的半透膜中还包含增塑剂。
7. 根据权利要求 6 所述的群孔释放渗透泵控释片,其中所述 的增塑剂选自柠檬酸三乙酯、 癸二酸二丁酯、 邻苯二甲酸酯、 聚 乙二醇 4000中的一种或其两种以上的混合物,优选为癸二酸二丁 酯。
8. 根据权利要求 1-7任意一项所述的群孔释放渗透泵控释片, 其中所述的助渗剂选自微晶纤维素、 乳糖、 海藻酸、 海藻酸盐、 丙二醇海藻酸酯、聚乙二醇中的一种或其两种以上的混合物,优选 为微晶纤维素、 海藻酸或丙二醇海藻酸酯。
9. 根据权利要求 1-8任意一项所述的群孔幹放渗透泵控释片, 其中所述的片芯中还包含润滑剂。
1 0. 根据权利要求 9所述的群孔群孔释放渗透泵控幹片,其中 所述的润滑剂选自硬脂酸镁、 硬脂酸钙、 硬脂酸辞、 单硬脂酸甘 油脂、 硬脂富马酸钠、 聚氧乙浠单硬脂酸酯、 单月桂蔗糖酸酯、 月桂醇硫酸钠、 月桂醇硫酸镁、 十二烷基硫酸镁、 滑石粉中的一 种或其两种以上的混合物,优选为硬脂酸镁。
11. 根据权利要求 1-10 所述的群孔释放渗透泵控释片,其还 包括位于半透膜外的含主药的薄膜衣层。
12. 根据权利要求 11所述的群孔幹放渗透泵控释片,含主药的 薄膜衣层优选其中含主药 20% ~ 40%,成膜材料 50% ~ 80%,增塑剂 5 % ~ 1 0 %,且所述的含主药的薄膜衣中的主药含量为所述的片芯中 主药含量的 10% ~ 20%。
13. 一种制备权利要求 1-12所述的群孔释放渗透泵控释片的 方法,其中包括如下步骤:(1)将制备片芯的主药、辅料混合、用通 常的粘合剂制粒,进行压片,制得片芯; (2)将制备半透膜的材料用 适宜溶剂配成包衣液,将步骤(1)制得的片芯置包衣机中进行包衣, 至半透膜重量占片芯重量的 10% ~ 35%,取出后挥干溶剂既得包有 半透膜的片剂。
14. 根据权利要求 13所述的方法,其中还包括将步骤(2)所制 得的包有半透膜的片剂置包衣机中,用薄膜包衣液进行薄膜包衣 的步骤,优选薄膜包衣液中进一步含有主药。
15. 根据权利要求 1 所述的群孔释放渗透泵控释片,由片芯、 半透膜和选择性的位于半透膜外的含主药的薄膜衣组成,其中,按 重量百分比计算,所述的片芯中,含盐酸文拉法辛 25% ~ 50%、促渗 剂 10% ~ 35%, 助渗剂 20% - 40%, 润滑剂 0. 5% ~ 1%;所述的半透膜 中,含成膜材料 50% ~ 70%、 致孔剂 20 ~ 45%, 增塑剂 3% ~ 10°/o, JL 半透膜为片芯重量的 10% ~ 35%,所述选择性的含主药的薄膜衣中 按重量百分比计算,含盐酸文拉法辛 20% ~ 40%,成膜材料 50% ~ 80%,增塑剂 5% ~ 10%,且所述的含主药的薄膜衣中盐酸文拉法辛 为所述的片芯中盐酸文拉法辛重量的 10% ~ 20%。
16. 权利要求 15所述的群孔释放渗透泵控释片的制备方法,包 括下列步骤: (1)片芯制备一一将盐酸文拉法辛、 氯化钠和部分微 晶纤维素混匀、制颗粒,所得颗粒与其余的微晶纤维素和硬脂酸镁 混匀,进行压片;(2)片芯包半透膜——用适宜溶剂溶解醋酸纤维 素、 聚乙二醇 6000和癸二酸二丁酯,配成包衣液备用,取步骤(1) 制得的片芯置于包衣机中包衣,挥干溶剂,制得包有半透膜的片 剂; (3)选择性的, 将包有半透膜的片剂包覆含主药的薄膜衣层一 —用适宜溶剂溶解盐酸文拉法辛、 羟丙基甲基纤维素和聚乙二醇 4000,配成含主药的薄膜包衣液备用,取步骤(2)制得的包有半透 膜的片剂置于包衣机中,用上述含主药的薄膜包衣液进行薄膜包 衣,挥干溶剂,即得。
17. 根据权利要求 1所述的群孔释放渗透泵控释片,其中,按重 量百分比计算,所述的片芯中,含酒石酸美托洛尔 12% ~ 25%、 促渗剂
10% ~ 65%, 助渗剂 15% ~ 40%、 润滑剂 0. 5% ~ 1%,所述的半透膜中,按 重量百分比计算,含成膜材料 50% ~ 70%、致孔剂 20% ~ 45%、增塑剂 3%~ 10%,且半透膜为片芯重量的 10%~35%。
PCT/CN2007/002967 2006-10-16 2007-10-16 Comprimé à pompe osmotique à porosité contrôlée de médicaments hautement perméables et procédé de préparation de celui-ci WO2008052417A1 (fr)

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CN101642443B (zh) * 2008-08-08 2011-09-21 鲁南制药集团股份有限公司 单硝酸异山梨酯渗透泵型控释制剂及其制备方法
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CN101766581B (zh) * 2008-12-30 2012-08-15 北京科信必成医药科技发展有限公司 一种群孔释放的盐酸地尔硫卓择时控释片及其制备方法
CN101953822B (zh) * 2010-07-30 2012-05-30 合肥立方制药股份有限公司 一种盐酸文拉法辛控释片及其制备方法
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EP2085078A4 (en) 2011-10-05
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CN100584319C (zh) 2010-01-27
DK2085078T3 (en) 2014-02-17
PL2085078T3 (pl) 2014-05-30
ES2446267T3 (es) 2014-03-06
US8703193B2 (en) 2014-04-22
HK1136962A1 (en) 2010-07-16
EP2085078B1 (en) 2013-11-20
US20100291208A1 (en) 2010-11-18
CN1923184A (zh) 2007-03-07
EP2679220A1 (en) 2014-01-01
PL2679220T3 (pl) 2020-04-30
ES2755716T3 (es) 2020-04-23
EP2085078A1 (en) 2009-08-05

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