WO2011069326A1 - 包含阿替洛尔和氨氯地平的双层片剂 - Google Patents

包含阿替洛尔和氨氯地平的双层片剂 Download PDF

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WO2011069326A1
WO2011069326A1 PCT/CN2010/001901 CN2010001901W WO2011069326A1 WO 2011069326 A1 WO2011069326 A1 WO 2011069326A1 CN 2010001901 W CN2010001901 W CN 2010001901W WO 2011069326 A1 WO2011069326 A1 WO 2011069326A1
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Prior art keywords
amlodipine
sheet
atenolol
layer
pharmaceutically acceptable
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PCT/CN2010/001901
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English (en)
French (fr)
Inventor
吴翠拴
黄晶晶
邱彤
吴曼林
营亚萍
吴涛
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北京双鹤药业股份有限公司
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Publication of WO2011069326A1 publication Critical patent/WO2011069326A1/zh

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/16Amides, e.g. hydroxamic acids
    • A61K31/165Amides, e.g. hydroxamic acids having aromatic rings, e.g. colchicine, atenolol, progabide
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/33Heterocyclic compounds
    • A61K31/395Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/435Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
    • A61K31/44Non condensed pyridines; Hydrogenated derivatives thereof
    • A61K31/44221,4-Dihydropyridines, e.g. nifedipine, nicardipine
    • 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
    • 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
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P9/00Drugs for disorders of the cardiovascular system
    • 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 invention belongs to the technical field of medicine and relates to a two-layer tablet comprising atenolol and amlodipine, which has better stability and can be used for treating hypertension. Background technique
  • Cardiovascular disease is one of the most important diseases that seriously affect human health.
  • Hypertension is the most common cardiovascular disease and a major public health problem worldwide.
  • the combination therapy for hypertension has the following advantages over single drug therapy: (1) It is easier to control blood pressure and reduce complications by using two drugs with different mechanisms of action; (2) The combination of two low-dose drugs can avoid side effects. (3) Fixed low-dose combination preparations can improve compliance.
  • Chinese Patent Application Publication No. CN1785185A (Application No.: 200410096834. 3, Publication Date: June 14, 2006) discloses a novel compound hypotensive preparation containing atenolol and amlodipine, which contains amlodipine Atenolol, said amlodipine comprising a besylate, a maleate, and other pharmaceutically acceptable salts, or mixtures.
  • Each unit of preparation contains amlodipine besylate (in terms of amlodipine) 0. 5 ⁇ 5 mg, atenolol in the range of 5 ⁇ 25 mg, the optimal content of both (in terms of amlodipine) For amlodipine: atenolol-1: 10.
  • the new compound antihypertensive preparation utilizes the synergistic effect between the drugs, and the multi-target synergistic antihypertensive effect in the optimal dose range not only has the same antihypertensive effect of amlodipine alone, but also reduces amlodipine.
  • the dose was 2.5 to 5 times, which reduced side effects and improved patient compliance.
  • a combination of atenolol and amlodipine in the treatment of other cardiovascular diseases such as coronary heart disease, angina pectoris, etc. is also effective, for example, see Chen Min, et al. Amlodipine in combination with atenolol for the treatment of coronary heart disease angina 50 Clinical observation. Journal of Hengyang Medical College, Vol. 28, No.
  • the dosage of the unit dosage form is usually atenolol 5 ⁇ 25 mg, amlodipine (base, the same below) 0. 5 ⁇ 5 mg, especially for example, atenol 10 mg, amlodipine 1 mg.
  • An object of the present invention is to provide a combination pharmaceutical preparation comprising atenolol and amlodipine which meets medicinal requirements in terms of stability and dissolution properties and the like.
  • the present inventors have surprisingly found that atenolol and amlodipine are prepared as a compound bilayer tablet in which the two active ingredients are distributed in different layers while being added to one or both of the layers. A certain amount of excipients can completely overcome the above problems of stability and dissolution.
  • the present invention has been completed based on the above findings.
  • a first aspect of the present invention provides a bilayer tablet comprising: a first sheet comprising atenolol as an active ingredient, and a pharmaceutically acceptable excipient, and
  • a second sheet comprising amlodipine or a pharmaceutically acceptable salt thereof as an active ingredient, and a pharmaceutically acceptable adjuvant.
  • the bilayer tablet according to any one of the first aspect of the present invention wherein the content of the atenolol contained in each tablet is 5 to 25 mg, preferably 5 to 20 mg, preferably 5 to 15 mg. For example, about 5 mg, about 8 mg, about 10 mg, about 12 mg, about 15 mg, about 20 mg.
  • the bismuth tablet of the present invention wherein the amlodipine or a pharmaceutically acceptable salt thereof is contained in an amount of 0.2 to 5 mg (alkali Amlodipine, the same as below), preferably 0.5 to 5 mg, preferably 0.5 to 4 mg, preferably 0.5 to 3 mg, preferably 0.5 to 2.5 mg, for example, about 0.5 mg, about 0.8 mg, about 1.0 mg, about 1.2 mg. , about 1.5 mg, about 2 mg, about 2.5 mg, about 3 mg.
  • the bilayer tablet according to any one of the first aspect of the present invention, wherein the content ratio of the atenolol to amlodipine or a pharmaceutically acceptable salt thereof contained in each tablet is 10: 0.5 to 10 : 2.5.
  • the content ratio of the two is about 10:0.5, in another embodiment the content ratio of the two is about 10:0.8, and in another embodiment the content ratio of the two is about 10:1.
  • the content ratio of the two is about 10: 1.5, in another embodiment the content ratio of the two is about 10:2, and in another embodiment the content ratio of the two is about 10: 2.5. .
  • the content ratio of the two is about 10:1.
  • the two-layer tablet according to any one of the first aspect of the present invention wherein the first sheet layer and the second sheet layer are each independently obtained by a method selected from the group consisting of: direct powder tableting, and wet French pellets.
  • the first sheet and the second sheet are obtained by wet granulation tableting.
  • the two-layer tablet according to any one of the first aspect of the present invention wherein the pharmaceutically acceptable excipients in the first sheet and the second sheet are each independently selected from the group consisting of Or one or more of a plurality of classes (ie, excipient types) (ie, a specific class of excipients, including different grades thereof): diluent, disintegrant, lubrication And/or glidant, optional binder.
  • a plurality of classes ie, excipient types
  • diluent, disintegrant, lubrication And/or glidant optional binder.
  • the two-layer tablet according to any one of the first aspects of the present invention, wherein the dilution
  • the agent is one or more selected from the group consisting of: calcium hydrogen phosphate, microcrystalline cellulose, silicified microcrystalline cellulose, various forms of microcrystalline cellulose such as microcrystalline cellulose PH 101 and microcrystalline cellulose PH 102 , anhydrous lactose, hydrated lactose, calcium phosphate, dicalcium phosphate, tricalcium phosphate, mannitol, sorbitol, sucrose, inositol, trehalose, xylitol, corn starch, kaolin, bentonite, etc., and their mixture.
  • the weight percentage of the diluent in the first sheet or the second sheet is each independently between 5% and 95%, preferably between 10% and 95%, preferably Between 15% and 85%, for example between 20% and 80%.
  • each of the first sheet and/or the second sheet independently comprises calcium hydrogen phosphate, microcrystalline cellulose.
  • each of the first sheet and/or the second sheet independently comprises calcium hydrogen phosphate in an amount of from 35 to 95 °/ of the weight of the layer. (w/w), preferably 40 to 90%, preferably 45 to 85%.
  • the microcrystalline cellulose is independently contained in the first sheet and/or the second sheet in an amount of from 3 to 40% (w/w), preferably 3 ⁇ , based on the weight of the layer. 30°/. Preferably, it is 4 to 25%, preferably 5 to 25%.
  • each of the first sheet and/or the second sheet independently comprises calcium hydrogen phosphate and microcrystalline cellulose, wherein the calcium hydrogen phosphate comprises 35 to 95% by weight of the layer (w/ w), preferably 40 to 90%, preferably 45 to 85%, and the microcrystalline cellulose accounts for 3 to 40% (w/w), preferably 3 to 30%, preferably 4 to 25%, preferably 5 to 25, based on the weight of the layer. %.
  • the two-layer tablet according to any one of the first aspect of the present invention wherein the disintegrating agent is one or more selected from the group consisting of sodium carboxymethyl starch, crospovidone, and cross-linked carboxymethyl Cellulose sodium, sodium starch glycolate, sodium lauryl sulfate, and the like, and mixtures thereof. 5% ⁇ 8% ⁇ 5% and 8%, preferably between 0.5% and 10%, preferably 0.5% and 8%, respectively. 6 ⁇ Between 6% and 8%, preferably 0. 6 ° /. And 5%, about 1. 5%, about 0. 6%, about 0. 8%, about 0. 8%, about 1%, about 1. 1%, about 1. 5%, about 1. 8%, about 2% , about 3°/.
  • the disintegrating agent is one or more selected from the group consisting of sodium carboxymethyl starch, crospovidone, and cross-linked carboxymethyl Cellulose sodium, sodium starch glycolate, sodium lauryl sulfate, and the like, and mixtures thereof.
  • each sodium carboxymethyl starch is independently included in the first sheet and/or the second sheet.
  • sodium carboxymethyl starch is independently included in the first sheet and/or the second sheet, and the sodium carboxymethyl starch is 0.2% and 10% by weight of the layer of the sheet. .
  • the first sheet comprises sodium carboxymethyl starch, and the sodium carboxymethyl starch comprises from 1% to 10%, preferably from 2% to 8%, preferably 2% by weight of the layer of the sheet. ⁇ 5%.
  • the first sheet comprises sodium carboxymethyl starch, and the sodium carboxymethyl starch comprises from 2% to 5% by weight of the layer of the tablet.
  • the second sheet comprises sodium carboxymethyl starch, and the sodium carboxymethyl starch comprises from 0.2% to 10%, preferably from 0.2% to 8%, preferably 0.5% by weight of the layer of the layer. ⁇ 5%, preferably 0.6 ° /. ⁇ 3%, preferably 0.6% ⁇ 2%.
  • the second sheet comprises sodium carboxymethyl starch, and the sodium carboxymethyl starch comprises from 0.6% to 2% by weight of the layer of the tablet.
  • the lubricant and/or glidant is one or more selected from the group consisting of magnesium stearate and stearyl fumar Sodium, calcium stearate, zinc stearate, stearic acid, polyethylene glycol with a molecular weight > 6000, talc, sodium benzoate, poloxamer, silica, corn starch, talc, trisilicate Magnesium, etc., and mixtures thereof.
  • the weight percentage of the lubricant and/or glidant in the first sheet or the second sheet is each independently from 0.1% to 10°/.
  • magnesium stearate is each independently included in the first sheet and/or the second sheet.
  • each of the first layer and/or the second layer independently comprises magnesium stearate, and the magnesium stearate comprises from 0.1% to 10% by weight of the layer of the sheet, preferably It is 0.1 to 8%, preferably 0.1 to 5%, preferably 0.2 to 2%, preferably 0.3 to 1%, preferably 0.3 to 0.8%, for example, about 0.2%, about 0.3%, or about 0.41 ⁇ 2, about 0.5%, about 0.6%, about 0.
  • magnesium stearate is independently included in each of the first sheet and/or the second sheet, and the magnesium stearate comprises from 0.3 to 0.8 °/ of the weight of the sheet layer. , for example about 0.3°/. , about 0.4%, about 0.5%, about 0.6%, about 0.7%, about 0.8%.
  • a two-layer tablet comprising an optional binder, the binder being one or more selected from the group consisting of: povidone k-30, hydroxy Propyl methylcellulose, carboxymethylcellulose, pregelatinized starch, corn starch paste, and the like, and mixtures thereof.
  • the weight percentage of the binder in the first sheet or the second sheet is independently from 0.05% to 10%, preferably from 0.05% to 8%, preferably 0.05%. 5%, preferably from 0.1% to 2%, preferably from 0.1% to 1%, such as from about 0.1%, about 0.2%, about 0.3%, about 0.5%, about 0.8%/ 0 , about 1%.
  • the binders in the first sheet and/or the second sheet are each independently povidone k-30 (also denoted PVP K3 .), preferably it is an aqueous solution or An aqueous alcohol solution (for example, prepared in an aqueous solution of 20 to 90% v/v ethanol, preferably in an aqueous solution of 30 to 80% v/v ethanol), and the solution concentration may be 20 to 90% v/v (preferably 30 to 80% v/).
  • the amount of the binder used for the production of the soft material in the wet granulation method is preferably determined according to the experience of ordinary people skilled in the art and actual production conditions, and thus in a preferred embodiment The binder is added in an appropriate amount.
  • a two-layer tablet according to any one of the first aspects of the invention which may further comprise a protective coating to protect the bilayer tablet from light and moisture.
  • the coating is formed by coating-forming a polymer selected from the group consisting of cellulose derivatives and acrylic polymers.
  • a cellulose derivative is used, it is selected from the group consisting of hydroxypropylmethylcellulose, hydroxypropylcellulose, decylcellulose, hydroxyethylcellulose, and mixtures thereof.
  • an acrylic polymer a non-limiting example is a basic butylated methacrylic acid copolymer.
  • the use of hydroxypropyl decyl cellulose as a coating material is particularly preferred.
  • one or more lubricants such as talc, one or more plasticizers such as Tween 80, and one or more opacifiers such as titanium dioxide may also optionally be included.
  • the percentage of the coating layer to the weight of the two-layered tablet is well known to those skilled in the art. In one embodiment, the weight of the coating is from 1 to 5% (w/w), preferably from 2 to 4, based on the weight of the tablet. % (w/w) or 2 ⁇ 3% (w/w).
  • the class or mixture thereof is preferably amlodipine besylate.
  • a two-layer tablet according to any one of the first aspects of the present invention comprising: ⁇ a first sheet comprising the active ingredient atenolol, comprising:
  • a second layer comprising the active ingredient amlodipine or a pharmaceutically acceptable salt thereof, comprising:
  • An acceptable salt the base is amlodipine, and the calcium hydrogen phosphate is 40-60 parts by weight.
  • PVP 30 is right, 4 ⁇ Magnesium stearate I 0. 3-0. 4 parts by weight.
  • a two-layer tablet according to any one of the first aspects of the invention which is produced by pressing on a double laminator.
  • the two-layer sheet is pressed by a double laminator, and the first sheet comprising the active ingredient atenolol is first pressed during tableting, and contains active ingredient ammonia.
  • the second sheet of clodipine or a pharmaceutically acceptable salt thereof is subsequently compressed such that when the two-layer sheet is in a tablet press, the first sheet is in the lower layer and the second sheet is in the upper layer.
  • a second aspect of the invention provides a method of preparing a two-layer tablet according to any one of the first aspects of the invention, which is a wet granulation tableting method, and comprising the steps of:
  • step (ii) formulating the binder into a solution, wet granulating the mixture of step (i), drying, granulating, adding a pre-formulation disintegrant, adding a lubricant and/or a glidant , well mixed;
  • step (ii-a) preparing the binder into a solution, wet granulating the mixture of step (i-a), drying, granulating, adding a pre-formulation disintegrant, adding a lubricant of the formula and/or Or glidant, evenly mixed;
  • the weight of the film is from 1 to 5% (w/w), preferably from 2 to 4% (w/w) or from 2 to 3 based on the total weight of the tablet. % (w/w).
  • the step (the amount of the disintegrant in the fraction of 0 is a part of the total amount of the disintegrant, that is, the amount of the prescription portion described above, at this time in the field of pharmacy A part of the disintegrant is added (added before granulation), and a part is added (the granules are added after drying).
  • the amount of the disintegrant in the step (i) occupies 40 to 80% (w/w), preferably 40 to 80% (w/w), preferably 40 to 70%, for example, about 40%, about 45%, about 50%, about 55%, about 40% by weight of the total amount of the decomposing agent. 60%, about 70%.
  • the amount of the disintegrant in the step (ia) is a part of the total amount of the disintegrant, that is, the amount of the prescription portion described above, at this time in the field of pharmacy. It is understood to be a part of the disintegrant added (added before granulation) and a part to be added (the granules are added after drying).
  • the amount of the disintegrant in the step (i - a) is 40 to 80% (w/w), preferably 40 to 80% of the total amount of the disintegrant ( w/w), preferably 40 to 70%, for example about 40%, about 45%, about 50°/. , about 55%, about 60%, about 70%.
  • step (i) and / or step (ia) is free of lubricants and/or glidants, even if the lubricant and/or glidant are all Addition after the granules have dried means that the lubricant and/or glidant are all added in step (ii) and/or step (i ia).
  • the third aspect of the invention provides the use of the bilayer tablet according to any one of the first aspects of the invention for the preparation of a medicament for the prevention and/or treatment of cardiovascular diseases such as hypertension, coronary heart disease, angina pectoris.
  • the pharmaceutical product is, for example, a drug that can be directly applied clinically, such as a clinical drug with a pharmaceutical package such as a blister pack.
  • a fourth aspect of the invention provides a method of preventing and/or treating cardiovascular diseases such as hypertension, coronary heart disease, angina pectoris in a mammal, such as a human, in need thereof, the method This comprises administering to the mammal a therapeutically effective amount of the bilayer tablet of any of the first aspects of the invention.
  • cardiovascular diseases such as hypertension, coronary heart disease, angina pectoris in a mammal, such as a human
  • the term "two-layer tablet” has a conventional understanding in the art, for example, its definition can be found in a number of "Pharmaceutics” textbooks.
  • the two-layer tablet is obtained by two tableting processes, wherein the first layer and the body portion of the second layer are separated from each other, and only one of the bonded portions is bonded together.
  • the whole tablet may be in the form of any tablet, such as a circular tablet, a capsule-shaped tablet, a profiled sheet or the like, and a circular tablet and a capsule-shaped tablet are preferred.
  • first sheet is specifically defined for the sake of distinction, which includes an atenolol layer, and the term “second sheet” has a similar meaning.
  • first sheet and second sheet are not divided into order, size, weight, top and bottom, left and right, and the like.
  • the amlodipine described therein may be used in its base or in the form of a pharmaceutically acceptable salt thereof.
  • the amount When specifying the amount, unless otherwise specified, it is based on its base.
  • each active ingredient in the pharmaceutical compositions of the present invention in the form of a bilayer tablet can be varied so that the resulting amount of active compound is effective to provide the desired therapeutic response to the particular patient, composition, and mode of administration.
  • the dosage level will be selected based on the activity of the particular compound, the route of administration, the severity of the condition being treated, and the condition and past medical history of the patient to be treated.
  • the practice in the art is that the compound agent The amount begins with a level lower than that required to achieve the desired therapeutic effect, and the dosage is gradually increased until the desired effect is obtained.
  • the spirit and scope of the above are also intended to be included herein for the purpose of the present invention.
  • a therapeutically and/or prophylactically effective amount of a compound of the invention may be administered in the form of a pro-form, or in the form of a pharmaceutically acceptable salt (in the presence of these) In the case of the form) application.
  • the phrase "therapeutic and/or prophylactically effective amount" of a compound of the invention refers to a compound of sufficient amount to treat the disorder in a reasonable effect/risk ratio suitable for any medical treatment and/or prophylaxis. It will be appreciated, however, that the total daily usage of the compounds and compositions of the present invention will be determined by the attending physician within the scope of sound medical judgment.
  • the specific therapeutically effective dose level for any particular patient will depend on a number of factors, including the disorder being treated and the severity of the disorder; the activity of the particular compound employed; the particular composition employed The age, weight, general health, sex and diet of the patient; the time of administration, the route of administration and the rate of excretion of the particular compound employed; the duration of treatment; the drug used in combination or concurrent with the particular compound employed; And similar factors well known in the medical field. For example, it is the practice in the art to start at a dose lower than that required to achieve the desired therapeutic effect, gradually increasing the dosage until the desired effect is achieved. In general, atenolol and amlodipine can each be independently referenced to their dosage use when used alone or below their respective application. For the treatment of hypertension, adjusting the dose according to the blood pressure of the subject is an alternative and effective solution.
  • ⁇ telolol and amlodipine besylate are mixed, and excipients, disintegrants, lubricants and the like are added to form tablets.
  • the content of amlodipine besylate decreased with time and the related substances increased.
  • the invention makes atenolol and amlodipine into a double-layer tablet, in particular, it is found that the preparation of the preparation group provided by the invention is used to prepare a double-layer tablet, which not only solves the problem of atenolol and amlodipine besylate.
  • the drug that is directly mixed and compressed is unstable, the quality of the substance is decreased, and the like, and it is unexpectedly found that the problem that the dissolution of the drug is unsatisfactory can be overcome.
  • the invention generally and in the materials and test methods used in the test
  • Example 1 Preparation of atenolol-amlodipine melamine tablets Tablet preparation:
  • Atenolol layer (1) Atenolol layer:
  • Amlodipine besylate in bases
  • Calcium hydrogen phosphate 50 mg
  • the binder granulation drying, 16 mesh granules, add another 50% sodium carboxymethyl starch, magnesium stearate to mix and obtain atenolol granules; the atenolol granules to the double laminate
  • the amlodipine besylate granules were placed in the second layer hopper of the double laminator to adjust the pressure and the weight of the two layers, and the two-layer tablets were pressed.
  • the film is coated with a plain film, and the weight gain is 2 to 3%, that is, a tablet of atenolol amlodipine is obtained.
  • Example 2 Preparation of albendol-amlodipine bilayer tablet Preparation of tablets:
  • Example 3 Preparation of a flat tablet of atenolol-amlodipine
  • Atenolol layer (1) Atenolol layer:
  • Amlodipine besylate 1 mg (in bases), Calcium hydrogen phosphate
  • Carboxymethyl starch sodium 1. 0 mg ,
  • Atenolol amlodipine bilayer (Example 1) and the ordinary tablet (Comparative Example), and set it at 30 ⁇ ⁇ 2 ⁇ and relative humidity 65% ⁇ 5% for 3 months, respectively at 0. 1, 2, 3 months sampling test, compare the acceleration stability of the two; another take altrolol amlodipine ordinary tablets and two-layer tablets, set 25 ⁇ ⁇ 2, relative humidity 60% soil 5% conditions, After 6 months of investigation, samples were taken at 0, 1, 2, 3, and 6 months to compare the long-term stability of the two.
  • the accelerated stability test results of the two-layer sheet and the ordinary sheet containing atenolol and amlodipine are shown in Table 1. It can be seen from Table 1 that in the environment of 30 ⁇ 2 and relative humidity of 65% ⁇ 5% for 3 months, the content of amlodipine besylate in common tablets is reduced from 99.39% to 79.16%, and the related substances are increased by 0.30%. Up to 4.89%; the content of double-layer amlodipine besylate decreased from 102.2% to 96.26%, and the related substances increased from 0.19% to 0.72%. Compared with ordinary tablets, the two-layer sheet of the invention significantly improved benzene. Accelerated stability of amlodipine sulfonate.
  • the related substance (0.19) of amlodipine besylate in the bilayer tablet of the present invention is much smaller than the related material shield (0.30) of the ordinary sheet, which indicates that the double layer sheet of the present invention can increase benzene.
  • the stability of amlodipine sulfonate during tableting Table 1. Accelerated stability test of altrolol amlodipine bilayer tablet (30, RH 65%)
  • Example 2 The effect of the composition of the formulation on the dissolution of the preparation of the two-layer tablet was prepared according to the method of Example 1, except that the amount of the disintegrant carboxymethyl starch sodium in the atenolol layer was changed to 1. 8% , 3%, 5%, etc.
  • the atenolol granules of different disintegrant formulations were respectively pressed into a two-layer tablet with amlodipine besylate granules to determine the dissolution degree.
  • Exemplary results are shown in Table 3. The results show that when the content of the disintegrant is more than 1.8%, for example, more than 2%, especially 3% or more, the dissolution rate of amlodipine besylate is high, and the dissolution requirement of the solid preparation is more than 70. % is usually required.
  • the dissolution test conditions are as follows:
  • Example 3 Investigation of basic properties of preparations

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Description

包含阿替洛尔和氨氯地平的双层片剂 技术领域
本发明属于医药技术领域,涉及一种包含阿替洛尔和氨氯地平 的双层片剂, 该片剂有更好的稳定性, 可以用于治疗高血压。 背景技术
心血管疾病是严重影响人类健康的最重要疾病之一。高血压是 最常见的心血管病,是全球范围内的重大公共卫生问题。 治疗高血 压联合用药比单一药物治疗具有如下优点: (1)通过使用两种作用 机制不同的药物能更容易控制血压, 减少并发症; (2)两种低剂量 的药物联合应用可以避免发生副作用; (3)固定小剂量复合制剂可 以改善依从性。
中国专利申请公开 CN1785185A (申请号: 200410096834. 3, 公 开日: 2006年 6月 14 日)披露含有阿替洛尔和氨氯地平的新型的 复方降高血压制剂, 该降压制剂含有氨氯地平、 阿替洛尔, 所述的 氨氯地平包含苯磺酸盐、 马来酸盐以及药学上可以接受的其它盐 类, 或者混合物。 每制剂单位含苯磺酸氨氯地平(以氨氯地平 计) 0. 5 ~ 5 mg, 阿替洛尔在 5 ~ 25 mg范围内, 两者的最佳含量(以 氨氯地平计)比例为氨氯地平: 阿替洛尔 -1: 10。该新型复方降压制 剂利用了药物之间的协同作用, 在最佳剂量范围内, 通过多靶点协 同降压作用, 不仅具有单独使用氨氯地平的同等降压效果, 而且降 低了氨氯地平的服用剂量 2. 5 ~ 5倍, 减少了副作用, 改善了患者 的顺应性。 另据报道, 阿替洛尔和氨氯地平联合治疗其它心血管疾 病例如冠心病、 心绞痛等也是有效的, 例如, 参见陈敏, 等. 氨氯 地平与阿替洛尔联合治疗冠心病心绞痛 50例临床观察. 衡阳医学 院学报, 2000年第 28卷第 4期。 在阿替洛尔和氨氯地平合用于复方制剂中时,单位剂型中二者 的剂量通常为阿替洛尔 5 ~ 25 mg、氨氯地平(以碱基计,下同) 0. 5 ~ 5 mg, 特别是例如为阿替洛尔 1 0 mg、 氨氯地平 1 mg。
中国专利申请公开 CN1785185A中在实施实例部分提及将阿替 洛尔和氨氯地平制备成包含此二种活性成分的片剂或胶嚢剂。 然 而,上述片剂或胶嚢剂经常会出现稳定性不能满足常规药品贮藏要 求的问题。
因此,目前仍然需要有更稳定并满足溶出度等要求的包含阿替 洛尔和氨氯地平的复方制剂, 特别是双层片剂。 发明内容
本发明目的是提供一种在稳定性和溶出性能等方面满足药用 要求的包含阿替洛尔和氨氯地平的复方药物制剂。本发明人令人惊 奇地发现,将阿替洛尔和氨氯地平制备成复方双层片剂,使两种活 性成分分布于不同的层中,同时在其中之一或两个片层中加入一定 量的辅料, 可以完全克服上述稳定性和溶出度等问题。本发明基于 上述发现而得以完成。
为此, 本发明第一方面提供了一种双层片剂, 其包括: 第一片层, 其中包含作为活性成分的阿替洛尔, 以及药学上可 接受的辅料, 和
第二片层,其中包含作为活性成分的氨氯地平或其药学上可接 受的盐, 以及药学上可接受的辅料。
才艮据本发明第一方面任一项所述的双层片剂,其中每片中包含 的所述阿替洛尔的含量为 5 ~ 25 mg,优选 5 ~ 20 mg,优选 5 ~ 15 mg , 例如约 5 mg、 约 8 mg、 约 1 0 mg、 约 12 mg、 约 15 mg、 约 20 mg。
才艮据本发明第一方面任一项所述的双层片剂,其中每片中包含 的所述氨氯地平或其药学上可接受的盐的含量为 0. 2 ~ 5 mg (以碱 基氨氯地平计, 下同), 优选 0.5~ 5 mg, 优选 0.5 ~ 4 mg, 优选 0.5~ 3 mg, 优选 0.5 ~ 2.5 mg, 例如约 0.5 mg、 约 0.8 mg、 约 1.0 mg、 约 1.2 mg、 约 1.5 mg、 约 2 mg、 约 2.5 mg、 约 3 mg.
根据本发明第一方面任一项所述的双层片剂,其中每片中包含 的所述阿替洛尔与氨氯地平或其药学上可接受的盐的含量比为 10: 0.5至 10: 2.5。 在一个实施方案中二者的含量比为约 10: 0.5, 在另一个实施方案中二者的含量比为约 10: 0.8, 在另一个实施方 案中二者的含量比为约 10: 1, 在另一个实施方案中二者的含量比 为约 10: 1.5, 在另一个实施方案中二者的含量比为约 10: 2, 在另 一个实施方案中二者的含量比为约 10: 2.5。 在一个优选实施方案 中二者的含量比为约 10: 1。
根据本发明第一方面任一项所述的双层片剂,其中每片中包含 的所述阿替洛尔与氨氯地平或其药学上可接受的盐的含量分别为 10 mg和 1 mg。 在一个实施方案中二者的含量分别为 15 mg和 1.5 mg, 在另一个实施方案中二者的含量分别为 20 mg和 2 mg. 一个 特别优选的实施方案是,两种活性成分的含量分别为 10mg和 1 mg。
才艮据本发明第一方面任一项所述的双层片剂,所述第一片层和 第二片层各自独立地是通过选自以下的方式获得的: 粉末直接压 片、 和湿法制粒压片。 在一个优选的实施方案中, 所述第一片层和 第二片层是通过湿法制粒压片的方式获得的。 才艮据本发明第一方面任一项所述的双层片剂, 其中, 所述第一 片层和第二片层中的药学上可接受的辅料是各自独立地选自以下 的一类或多类(意即, 赋形剂类型)中的一种或多种(意即, 一类赋 形剂中的一种具体品种, 包括其不同的级别): 稀释剂、 崩解剂、 润滑剂和 /或助流剂、 任选的粘合剂。
才艮据本发明第一方面任一项所述的双层片剂,其中所述的稀释 剂为选自以下的一种或多种: 磷酸氢钙、 微晶纤维素、 硅酸化微 晶纤维素、各种形式的微晶纤维素例如微晶纤维素 PH 101和微晶 纤维素 PH 102、 无水乳糖、 水合乳糖、 磷酸钙、 磷酸二钙、 磷酸 三钙、 甘露醇、 山梨糖醇、 蔗糖、 肌醇、 海藻糖、 木糖醇、 玉米 淀粉、 高岭土、 膨润土等等, 和它们的混合物。 在一个实施方案 中, 所述稀释剂在第一片层或第二片层中所占的重量百分数各自 独立地为 5%和 95%之间,优选为 10%和 95%之间,优选为 15%和 85% 之间, 例如为 20%和 80%之间。 在一个优选的实施方案中, 在第一 片层和 /或第二片层中各自独立地包含磷酸氢钙、微晶纤维素。在 一个优选的实施方案中,在第一片层和 /或第二片层中各自独立地 包含磷酸氢钙, 其量占所在层重量的 35 ~ 95°/。(w/w), 优选 40 ~ 90%, 优选 45 ~ 85%。 在一个优选的实施方案中, 在第一片层和 / 或第二片层中各自独立地包含微晶纤维素, 其量占所在层重量的 3 - 40% (w/w) , 优选 3 ~ 30°/。, 优选 4 ~ 25%, 优选 5 ~ 25%。 在一个 优选的实施方案中,在第一片层和 /或第二片层中各自独立地包含 磷酸氢钙和微晶纤维素, 其中磷酸氢钙占所在层重量的 35 ~ 95% (w/w) , 优选 40 ~ 90%、优选 45 ~ 85% , 微晶纤维素占所在层重 量的 3 ~ 40% (w/w)、 优选 3 ~ 30%、 优选 4 ~ 25%、 优选 5 ~ 25%。
根据本发明第一方面任一项所述的双层片剂, 其中所述的崩 解剂为选自以下的一种或多种: 羧甲基淀粉钠、 交聚维酮、 交联 羧甲纤维素钠、 淀粉羟基乙酸钠、 十二烷基硫酸钠等等, 和它们 的混合物。 在一个实施方案中, 所述崩解剂在第一片层或第二片 层中所占的重量百分数各自独立地为 0. 2%和 10%之间, 优选为 0. 5%和 8%之间, 优选为 0. 6%和 8%之间, 优选为 0. 6°/。和 5%之间, 例如约 0. 5%、 约 0. 6%、 约 0. 8%, 约 1%、 约 1. 1%、 约 1. 5%、 约 1. 8%、 约 2%、 约 3°/。、 约 4%、 约 5%。 在一个优选的实施方案中, 在第一片层和 /或第二片层中各自独立地包含羧曱基淀粉钠。在一 个优选的实施方案中,在第一片层和 /或第二片层中各自独立地包 含羧甲基淀粉钠, 并且该羧曱基淀粉钠占其所在片层重量的 0.2% 和 10°/。之间, 优选为 0.5%和 8%之间, 优选为 0.6%和 8%之间, 优 选为 0.6%和 5%之间, 例如约 0.5%、 约 0.6%、 约 0.8%、 约 1%、 约 1.2%、 约 1.5%、 约 1.8%、 约 2%、 约 3%、 约 4%、 约 5°/。。 在一个优 选的实施方案中, 在第一片层包含羧甲基淀粉钠, 并且该羧甲基 淀粉钠占其所在片层重量的 1%~ 10%,优选 2%~ 8%,优选 2%~ 5%。 在一个特别优选的实施方案中, 在第一片层包含羧曱基淀粉钠, 并且该羧曱基淀粉钠占其所在片层重量的 2%~5%。在一个优选的 实施方案中, 在第二片层包含羧曱基淀粉钠, 并且该羧曱基淀粉 钠占其所在片层重量的 0.2%~10%, 优选 0.2%~8%, 优选 0.5% ~ 5%, 优选 0.6°/。~3%,优选 0.6%~2%。 在一个特别优选的实施方案 中, 在第二片层包含羧曱基淀粉钠, 并且该羧曱基淀粉钠占其所 在片层重量的 0.6%~2%。
根据本发明第一方面任一项所述的双层片剂, 其中所述的润 滑剂和 /或助流剂为选自以下的一种或多种:硬脂酸镁、硬脂酰富 马酸钠、 硬脂酸钙、 硬脂酸锌、 硬脂酸、 分子量 > 6000的聚乙二 醇、 滑石粉、 苯甲酸钠、 泊洛沙姆、 二氧化硅、 玉米淀粉、 滑石 粉、 三硅酸镁等等, 和它们的混合物。 在一个实施方案中, 所述 润滑剂和 /或助流剂在第一片层或第二片层中所占的重量百分数 各自独立地为 0.1%~ 10°/。, 优选为 0.1~8%, 优选为 0.1~5%, 优 选为 0.2 ~ 2%, 优选为 0.3 ~ 1%, 优选为 0.3 ~ 0.8%。 在一个优选 的实施方案中,在第一片层和 /或第二片层中各自独立地包含硬脂 酸镁。在一个优选的实施方案中,在第一片层和 /或第二片层中各 自独立地包含硬脂酸镁, 并且该硬脂酸镁占其所在片层重量的 0.1% ~ 10%, 优选为 0.1 ~ 8%, 优选为 0.1 - 5%, 优选为 0.2 ~ 2%, 优选为 0.3~1%, 优选为 0.3~0.8%, 例如约 0.2%、 约 0.3%、 约 0.4½、 约 0.5%、 约 0.6%、 约 0. Vk、 约 0.8%、 约 1%、 约 1. Vk、 约 1.5%、 约 1.8%、 约 1%、 约 3%。 在一个特别优选的实施方案中, 在第一片层和 /或笫二片层中各自独立地包含硬脂酸镁,并且该硬 脂酸镁占其所在片层重量的 0.3 ~ 0.8°/。, 例如约 0.3°/。、 约 0.4%、 约 0.5%、 约 0.6%、 约 0.7%、 约 0.8%。
根据本发明第一方面任一项所述的双层片剂, 其中包含任选 的粘合剂, 所述粘合剂为选自以下的一种或多种: 聚维酮 k-30、 羟丙基甲基纤维素、 羧曱基纤维素、 预胶化淀粉、 玉米淀粉糊等 等, 和它们的混合物。 在一个实施方案中, 所述粘合剂在第一片 层或第二片层中所占的重量百分数各自独立地为 0.05% - 10%, 优 选为 0.05%~ 8%, 优选为 0.05%~ 5%, 优选为 0.1%~ 2%, 优选为 0.1%~ 1%, 例如约 0.1%、 约 0.2%、 约 0.3%、 约 0.5%、 约 0.8°/0、 约 1%。 在一个优选的实施方案中, 在第一片层和 /或第二片层中 的粘合剂各自独立地为聚维酮 k-30(亦可表示为 PVPK3。), 优选其 为水溶液或醇水溶液(例如以 20~ 90%v/v乙醇水溶液配制, 优选 以 30~ 80%v/v乙醇水溶液配制),溶液浓度可以为 20~ 90%v/v (优 选为 30 - 80%v/v,优选为 40 ~ 70°/ov/v,例如约 40% v/v、约 50% v/v、 约 60% v/v、 约 70%v/v) , 其量可以根据上述范围确定。 本领域技 术人员清楚,作为在湿法制粒方法中用于制软材而使用的粘合剂, 其量优选根据本领域技术普通人员的经验和实际生产情况确定, 因此在一个优选的实施方案中, 所述的粘合剂是以适量的量加入 的。
才 据本发明第一方面任一项所述的双层片剂,其可进一步包含 保护包衣, 保护该双层片剂免受光和水分影响。 所述包衣是通过 涂覆-成型聚合物来形成的, 所述聚合物选自纤维素衍生物和丙 烯酸类聚合物。 当使用纤维素衍生物时,选自羟丙基甲基纤维素、 羟丙基纤维素、 曱基纤维素、 羟乙基纤维素和它们的混合物。 当 使用丙烯酸类聚合物时, 非限制性的实例是碱性丁基化异丁烯酸 共聚物。 使用羟丙基曱基纤维素作为包衣材料是特别优选的。 在 包衣材料中, 还可以任选地包含一种或多种润滑剂例如滑石粉、 一种或多种增塑剂例如吐温 80、和一种或多种遮光剂例如二氧化 钛。 所述衣层占双层片素片重量的百分数是本领域技术人员公知 的, 在一个实施方案中, 衣膜增重量为素片重量的 l ~ 5% (w/w), 优选 2 ~ 4% (w/w)或 2 ~ 3% (w/w)。
根据本发明第一方面任一项所述的双层片剂, 其中氨氯地平 的药学上可接受的盐包括苯磺酸氨氯地平、马来酸氨氯地平、 药学 上可接受的其他盐类或其混合物, 优选为苯磺酸氨氯地平。
根据本发明第一方面任一项所述的双层片剂, 其包括: ω包含活性成分阿替洛尔的第一片层, 其中包含:
Figure imgf000008_0001
(i i)包含活性成分氨氯地平或其药学上可接受的盐的第二片 层, 其中包含:
氨氯地平或其药学 1-2重量份(以
可接受的盐 其碱基即氨氯地平计), 磷酸氢钙 40-60重量份,
微晶纤维素 5-10重量份,
羧甲基淀粉钠 0. 5-1. 0重量份,
PVP 30 适量, 硬脂酸镁 I 0. 3-0. 4重量份。 根据本发明第一方面任一项所述的双层片剂,其具有下文实施 例所述的配方组成。
根据本发明第一方面任一项所述的双层片剂,其是通过双层压 片机压制而成。在一个实施方案中, 所述双层片是通过双层压片机 压制而成,并且包含活性成分阿替洛尔的所述第一片层是在压片过 程中先行压制,包含活性成分氨氯地平或其药学上可接受的盐的所 述第二片层随后压制,从而该双层片片在压片机冲模中时, 第一片 层处于下层, 第二片层处于上层。 本发明第二方面提供了一种制备本发明第一方面任一项所述 双层片剂的方法, 其为湿法制粒压片法, 并且包括以下步骤:
(i)将所述第一片层的活性成分、 稀释剂、 处方部分量或处方 全量的崩解剂、 处方部分量或处方全量的润滑剂和 /或助流剂混合 均匀;
( i i)将粘合剂配成溶液,对步骤(i)的混合物湿法制粒,干燥, 整粒,加入处方余量的崩解剂,加入处方余量的的润滑剂和 /或助 流剂, 混合均匀;
(i-a)将所述第二片层的活性成分、 稀释剂、 处方部分量或处 方全量的崩解剂、 处方部分量或处方全量的润滑剂和 /或助流剂混 合均匀;
( i i -a)将粘合剂配成溶液, 对步骤( i -a)的混合物湿法制粒, 干燥, 整粒, 加入处方余量的崩解剂, 加入处方余量的的润滑剂 和 /或助流剂, 混合均匀;
(i i i)将步骤(i i)所得第一片层混合颗粒置于双层压片机的 第一层加料斗中, 将步骤(i i-a)所得第二片层混合颗粒置于双层 压片机的第二层加料斗中, 压制双层片; 和任选的
(iv)对步骤(i i i)所得双层片进行包衣,衣膜增重量为素片总 重量的 1 ~ 5% (w/w), 优选 2 ~ 4% (w/w)或 2 ~ 3% (w/w)。
在本发明第二方面方法的一个实施方案中,所述步骤(0中崩 解剂的量占崩解剂总量的一部分, 即上文所述的处方部分量, 此时 在药剂学领域理解为崩解剂一部分内加(制粒前加入),一部分外加 (颗粒干燥后加入)。 在本发明第二方面方法的一个实施方案中, 所述步驟(i)中崩解剂的量占崩解剂总量的 40 ~ 80% (w/w), 优选 40 - 80% (w/w) , 优选 40 ~ 70%, 例如约 40%、 约 45%、 约 50%、 约 55%、 约 60%、 约 70%。
在本发明第二方面方法的一个实施方案中, 所述步骤(i-a) 中崩解剂的量占崩解剂总量的一部分, 即上文所述的处方部分量, 此时在药剂学领域理解为崩解剂一部分内加(制粒前加入),一部分 外加(颗粒干燥后加入)。 在本发明第二方面方法的一个实施方案 中, 所述步骤( i -a)中崩解剂的量占崩解剂总量的 40 ~ 80% (w/w), 优选 40 ~ 80% (w/w) , 优选 40 ~ 70%, 例如约 40%、 约 45%、 约 50°/。、 约 55%、 约 60%、 约 70%。
在本发明第二方面方法的一个实施方案中, 所述步驟(i)和 / 或步骤(i-a)中不加润滑剂和 /或助流剂, 即使所述润滑剂和 /或助 流剂全部在颗粒干燥之后加入,意即所述润滑剂和 /或助流剂全部 在步骤 (i i)和 /或步骤(i i-a)加入。
本发明第三方面提供本发明第一方面任一项所述双层片剂在 制备用于预防和 /或治疗心血管疾病例如高血压、冠心病、心绞痛 的医药产品中的用途。 所述的医药产品例如可供临床直接应用的 药品, 例如带有药品包装(如泡罩包装)的临床用药品。
本发明第四方面提供了在有需要的哺乳动物例如人中预防和 / 或治疗心血管疾病例如高血压、 冠心病、 心绞痛的方法, 该方法 包括给所述哺乳动物施用治疗有效量的本发明第一方面任二项所 述双层片剂。
下面对本发明的特征和优点作进一步的描述。
本发明所引述的所有文献, 它们的全部内容通过引用并入本 文, 并且如果这些文献所表达的含义与本发明不一致时, 以本发明 的表述为准。此外, 本发明使用的各种术语和短语具有本领域技术 人员公知的一般含义, 即便如此, 本发明仍然希望在此对这些术语 和短语作更详尽的说明和解释,提及的术语和短语如有与公知含义 不一致的, 以本发明所表述的含义为准。
如本发明使用的, 术语 "双层片剂" 具有本领域惯常的理解, 例如其定义可从诸多 《药剂学》教科书中找到。 一般说来, 双层片 剂是通过两次压片过程获得的,其中的第一片层和第二片层的主体 部分是相互分开的,仅在二者结合部分粘结在一起而成一个整体的 片剂。 根据本发明, 所述的双层片剂可以呈任何片剂的形式, 例如 圓形片、 胶嚢形片、 异形片等, 圆形片和胶嚢形片是优选的。
如本发明使用的, 术语 "第一片层"仅仅是为了区别起见而特 别定义的,其为包含阿替洛尔层,术语 "第二片层"也有类似含义。 在本发明中, "第一片层" 和 "第二片层" 并无先后、 大小、 轻重、 上下、 左右等之分。
根据本发明, 其中所述的氨氯地平可以以其碱基使用, 或者以 其药学上可接受的盐使用。 在指明其量时, 如无特别指明, 均以其 碱基计。
可改变本发明呈双层片剂形式的药物组合物中各活性成分的 实际剂量水平, 以便所得的活性化合物量能有效针对具体患者、 组合物和给药方式得到所需的治疗反应。 剂量水平须根据具体化 合物的活性、 给药途径、 所治疗病况的严重程度以及待治疗患者 的病况和既往病史来选定。 但是, 本领域的做法是, 化合物的剂 量从低于为得到所需治疗效果而要求的水平开始,逐渐增加剂量, 直到得到所需的效果。 对于本发明第二方面的提取物, 为了本发 明的目的, 在本文中也欲意涵盖上述的精神和范围。
当用于上述治疗和 /或预防或其他治疗和 /或预防时,治疗和 / 或预防有效量的一种本发明化合物可以以原形形式应用, 或者以 药学上可接受的盐形式(在存在这些形式的情况下)应用。词语"治 疗和 /或预防有效量 "的本发明化合物指以适用于任何医学治疗和 /或预防的合理效果 /风险比治疗障碍的足够量的化合物。 但应认 识到, 本发明化合物和组合物的总日用量须由主诊医师在可靠的 医学判断范围内作出决定。 对于任何具体的患者, 具体的治疗有 效剂量水平须根据多种因素而定, 所述因素包括所治疗的障碍和 该障碍的严重程度; 所采用的具体化合物的活性; 所釆用的具体 组合物; 患者的年龄、 体重、 一般健康状况、 性别和饮食; 所采 用的具体化合物的给药时间、给药途径和排泄率; 治疗持续时间; 与所采用的具体化合物组合使用或同时使用的药物; 及医疗领域 公知的类似因素。 例如, 本领域的做法是, 化合物的剂量从低于 为得到所需治疗效果而要求的水平开始, 逐渐增加剂量, 直到得 到所需的效果。 一般说来, 阿替洛尔和氨氯地平可以各自独立地 参考它们单独应用时的剂量使用, 或者低于它们的单独应用时的 剂量使用。 对于治疗高血压而言, 根据受试者血压调整用药剂量 是一种可选择的、 有效的方案。
在制备阿替洛尔和氨氯地平复方降高血压片剂的过程中,将^ 替洛尔和苯磺酸氨氯地平混合, 加入赋形剂、 崩解剂、 润滑剂等辅 料压制成片剂, 经过加速及长期稳定性实验, 苯磺酸氨氯地平的含 量随时间增加含量有所下降, 有关物质增多。 研究表明, 阿替洛尔 和苯磺酸氨氯地平直接混合压片, 造成了苯磺酸氨氯地平的不稳 定, 影响该复方片剂的稳定性。 本发明将阿替洛尔与氨氯地平制成双层片剂,特别在发现采用 本发明所提供的制剂组方来制备双层片,不但解决了阿替洛尔与苯 磺酸氨氯地平直接混合压片出现的药物不稳定,有关物质增多等质 量下降问题,而且出人意料地发现可以克服药物溶出度不能令人满 意的问题。 具体实施方式
下面通过具体的实施例和实验例进一步说明本发明, 但是, 应当理解为, 这些实施例和实验例仅仅是用于更详细具体地说明 之用, 而不应理解为用于以任何形式限制本发明。
本发明对试验中所使用到的材料以及试验方法进行一般性和
/或具体的描述。虽然为实现本发明目的所使用的许多材料和操作 方法是本领域公知的, 但是本发明仍然在此作尽可能详细描述。 本领域技术人员清楚, 在下文中, 如果未特别说明, 本发明所用 材料和操作方法是本领域公知的。 实施例 1 : 阿替洛尔 -氨氯地平默层片剂的制备 素片处方:
(1)阿替洛尔层:
Figure imgf000013_0001
(2)氨氯地平层:
苯磺酸氨氯地平 (以碱基计) 磷酸氢钙 50 mg,
微晶纤维素 7.5 mg,
羧曱基淀粉钠 0.75 mg,
PVP 30 适量,
硬脂酸镁 0.35 mg。 薄膜包衣液处方(按 1000ml计):
羟丙基甲基纤维素 20.0g, 吐温- 80 8.0g, 滑石粉 15.0g, 二氧化钛 10.0g, 溶剂为 50%乙醇。
制备工艺:
取处方量的阿替洛尔、 磷酸氢钙、 微晶纤维素、 50%羧甲基淀 粉钠, 一步混合制粒机混合, PVPK3。为粘合剂制粒, 干燥, 16目整 粒, 加入另外 50%的羧曱基淀粉钠、 硬脂酸镁混匀即得阿替洛尔颗 粒; 取处方量的苯磺酸氨氯地平、 磷酸氢钙、 微晶纤维素、 50%羧 甲基淀粉钠, 一步混合制粒机混合, PVPu。为粘合剂制粒, 干燥, 16目整粒,加入另外 50%的羧甲基淀粉钠、硬脂酸镁混匀即得阿替 洛尔颗粒; 将阿替洛尔颗粒至于双层压片机第一层加料斗中, 苯磺 酸氨氯地平颗粒至于双层压片机第二层加料斗中,调节两层压力及 片重, 压制双层片素片。 素片薄膜包衣, 增重 2 ~ 3%, 即得阿替洛 尔氨氯地平双层片剂。 实施例 2: 阿替洛尔 -氨氯地平双层片剂的制备 素片处方:
(1)阿替洛
!阿替洛尔 15 mg,
1磷酸氢钙 40 mg,
1微晶纤维素 10 mg, 羧曱基淀粉钠 2 mg ,
PVPK30 适量,
硬脂酸镁 0. 3 mg;
(2)氨氯地平层:
Figure imgf000015_0001
制备工艺:
根据以上所列处方, 基本上按照实施例 1 的制备工艺进行制 并对制备的双层片剂包衣。 实施例 3 : 阿替洛尔-氨氯地平双层片剂的制备
素片处方:
(1)阿替洛尔层:
Figure imgf000015_0002
(2)氨氯地平层:
苯磺酸氨氯地平 1 mg (以碱基计), 磷酸氢钙
微晶纤维素 5 mg ,
羧曱基淀粉钠 1. 0 mg ,
PVPn。 适量,
硬脂酸镁 0. 4 mg。 制备工艺:
根据以上所列处方, 基本上按照实施例 1 的制备工艺进行制 片。 对比实施例: 阿替洛尔 -氨氯地平普通片剂的制备 处方:
Figure imgf000016_0001
薄膜包衣液处方(按 1000ml计):
羟丙基甲基纤维素 20. 0g , 吐温 -80 8. 0g, 滑石粉 15. 0g, 二 氧化钛 10. 0g, 溶剂为 50%乙醇。
制备工艺:
将原辅料分别过 120目筛,按照处方量称取主药与赋形剂, 采 用等量递加方式混合均匀, 加入 50%羧曱淀粉钠, 混匀, 3%聚乙烯 吡咯烷酮(K- 30, 50%乙醇溶液)制软材, 20 目筛整粒。 加入 50°/。羧 曱淀粉钠与硬脂酸镁, 混匀, 压片并包衣。 试验例 1: 稳定性对比研究
取阿替洛尔氨氯地平双层片(实施例 1)和普通片(对比实施 例), 置 30Ό ±2Π、 相对湿度 65% ±5%条件下, 考察 3个月, 分别 于第 0、 1、 2、 3个月时取样检测, 比较两者的加速稳定性; 另取 阿替洛尔氨氯地平普通片和双层片, 置 25Ό ±2 、 相对湿度 60% 土 5%条件下, 考察 6个月, 分别于笫 0、 1、 2、 3、 6个月时取样检 测, 比较两者的长期稳定性。
包含阿替洛尔和氨氯地平的双层片、普通片的加速稳定性实验 结果见附表 1。 由表 1可见, 在 30 ±2 、 相对湿度 65% ±5%的 环境中放置 3个月, 普通片的苯磺酸氨氯地平的含量由 99.39%降 低到 79.16%, 有关物质由 0.30%升高到 4.89%; 双层片苯磺酸氨氯 地平的含量由 102.2%降低到 96.26%, 有关物质由 0.19%升高到 0.72%. 与普通片比较, 本发明的双层片显著提高了苯磺酸氨氯地 平的加速稳定性。
包含阿替洛尔和氨氯地平的双层片、普通片的长期稳定性实验 结果见附表 2。 由表 2可见, 在 25Ό ±2Ό、 相对湿度 60% ±5%的 环境中放置 6个月, 普通片的苯磺酸氨氯地平的含量由 99.39%降 低到 89.92%, 有关物质有 0.30%升高到 1.67%; 双层片苯磺酸氨氯 地平的含量由 102.2%降低到 100.4%, 有关物质有 0.19%升高到 0.49%。 与普通片比较, 本发明的双层片显著提高了苯磺酸氨氯地 平的长期稳定性。
另外, 在 0个月时, 本发明双层片中苯磺酸氨氯地平的有关物 质(0.19)远远小于普通片的有关物盾 (0.30),这表明本发明的双层 片可以增加苯磺酸氨氯地平在压片过程中的稳定性。 表 1、 阿替洛尔氨氯地平双层片剂 加速稳定性实验(30 、 RH 65%)
Figure imgf000018_0001
表 2、 阿替洛尔氨氯地平双层片剂 长期稳定性实验(25 Π、 RH 60%)
Figure imgf000018_0002
发明人进一步发现, 使用其它实施例制备的本发明双层片剂, 进行上述稳定性试验,也可以得到与上述实施例 1样品基本上相同 的稳定性试验结果。 实验例 2: 处方组成对制剂溶出度的影响 参考实施例 1的方法制备双层片剂,不同之处在于将阿替洛尔 层中崩解剂羧曱基淀粉钠用量改为 1. 8%、 3%、 5%等(以第一片层总 重量计), 将不同崩解剂处方的阿替洛尔颗粒分别与苯磺酸氨氯地 平颗粒压制成双层片, 测定溶出度, 部分示例性的结果见表 3。 结 果表明, 当崩解剂的含量大于 1. 8%, 例如大于 2%, 特别是为 3%或 3%以上时, 苯磺酸氨氯地平的溶出度高, 满足固体制剂溶出度要求 大于 70%的通常要求。
溶出度试验条件如下:
Figure imgf000019_0001
表 3、 处方组成对制剂溶出度的影响
Figure imgf000020_0001
发明人进一步发现,参考上文其它实施例制备的本发明双层片 剂, 进行上述溶出度试验, 不同之处是参考表 3改变阿替洛尔层中 崩解剂含量,也可以得到与上述实施例 1样品基本上相同的溶出试 验结果。 实猃例 3: 制剂基本性能考察
参考中国药典 2005年版二部的方法,测定实施例 1 ~ 3的以下 参数: 含量均一度、 片剂硬度、 脆碎度等参数。 结果表明, 本发 明制备的双层片剂上述性能符合一般片剂的基本要求。

Claims

权利要求
1. 一种双层片剂, 其包括:
第一片层, 其包含有效量的作为活性成分的阿替洛尔, 以及药 学上可接受的辅料, 以及
第二片层,其包含有效量的作为活性成分的氨氯地平或其药学 上可接受的盐, 以及药学上可接受的辅料。
2. 根据权利要求 1的双层片剂,其中每片中阿替洛尔的含量为 5-25 mg, 优选 5~20 mg, 优选 5~ 15 mg, 例如约 5 mg、 约 8 mg、 约 10 mg、 约 12 mg、 约 15 mg、 约 20 mg.
3. 根据权利要求 1的双层片剂,其中每片中氨氯地平或其药学 上可接受的盐的含量为 0.2 ~ 5 mg (以碱基氨氯地平计), 优选 0.5 ~ 5 mg, 优选 0.5 ~ 4 mg, 优选 0.5 ~ 3 mg, 优选 0.5 ~ 2.5 mg, 例如约 0.5 mg、 约 0.8 mg、 约 1.0 mg、 约 1.2 mg、 约 1.5 mg、 约 2 mg、 约 2.5 mg、 约 3 mg。
4. 根据权利要求 1的双层片剂,其中每片中阿替洛尔与氨氯地 平或其药学上可接受的盐的含量比为 10: 0.5至 10: 2.5, 例如为约 10: 0.5、 约 10: 0.8、 约 10: 1、 约 10: 1.5、 约 10: 2或约 10: 2.5。
5. 根据权利要求 1至 4任一项的双层片剂,其中所述第一片层 和第二片层中的药学上可接受的辅料各自独立地包括稀释剂、崩解 剂、 润滑剂、 助流剂和粘合剂中的一种或多种, 其中
所述的稀释剂为选自磷酸氢钙、 微晶纤维素、 硅酸化微晶纤 维素、 微晶纤维素 PH 101、 微晶纤维素 PH 102、 无水乳糖、 水合 乳糖、 磷酸钙、 磷酸二钙、 磷酸三钙、 甘露醇、 山梨糖醇、 蔗糖、 肌醇、 海藻糖、 木糖醇、 玉米淀粉、 高岭土和膨润土中的一种, 或为它们的任意混合物;
所述的崩解剂为选自羧曱基淀粉钠、 交聚维酮、 交联羧曱纤 维素钠、 淀粉羟基乙酸钠和十二烷基硫酸钠中的一种, 或为它们 的任意混合物;
所述的润滑剂和 /或助流剂为选自硬脂酸镁、 硬脂酰富马酸 钠、 硬脂酸钙、 硬脂酸锌、 硬脂酸、 分子量 > 6000的聚乙二醇、 滑石粉、 苯甲酸钠、 泊洛沙姆、 二氧化硅、 玉米淀粉、 滑石粉和 三硅酸镁中的一种, 或为它们的任意混合物; 以及
所述粘合剂为选自聚维酮 k-30、 羟丙基甲基纤维素、 羧甲基 纤维素、 预胶化淀粉和玉米淀粉糊中的一种, 或为它们的任意混 合物。
6. 根据权利要求 5 的双层片剂, 其中所述第一片层和第二片 层中的药学上可接受的辅料各自独立地包括磷酸氢钙、 微晶纤维 素、 羧甲基淀粉钠、 PVPK3。和硬脂酸镁。
7. 根据权利要求 6 的双层片剂, 其中所述第一片层中的羧曱 基淀粉钠含量大于 1. 8%, 例如大于 2%, 特别是为 3%或 3%以上。
8. 根据权利要求 6的双层片剂, 其包括:
( i )包含活性成分阿替洛尔的第一片层, 其中包含:
阿替洛尔 1 5-15重量份, 磷酸氢钙 40-60重量份, 微晶纤维素 5-10重量份, 羧甲基淀粉钠 2-3重量份, PVPno 适量,
硬脂酸镁 0. 3-0. 4重量份;
以及
(i i)包含活性成分氨氯地平或其药学上可接受的盐的第二片 层, 其中包含:
Figure imgf000023_0001
9. 根据权利要求 1至 8任一项的双层片剂, 其中氨氯地平的药 学上可接受的盐选自苯磺酸氨氯地平和马来酸氨氯地平,优选为苯 磺酸氨氯地平。
10. 根据权利要求 1至 8任一项的双层片剂,其进一步被包衣。
PCT/CN2010/001901 2009-12-08 2010-11-26 包含阿替洛尔和氨氯地平的双层片剂 WO2011069326A1 (zh)

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