WO2012136125A1 - 由溴代双氢青蒿素和Fe2+剂组成的复方双释胶囊制剂 - Google Patents

由溴代双氢青蒿素和Fe2+剂组成的复方双释胶囊制剂 Download PDF

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WO2012136125A1
WO2012136125A1 PCT/CN2012/073436 CN2012073436W WO2012136125A1 WO 2012136125 A1 WO2012136125 A1 WO 2012136125A1 CN 2012073436 W CN2012073436 W CN 2012073436W WO 2012136125 A1 WO2012136125 A1 WO 2012136125A1
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brominated
dihydroartemisinin
release
enteric
pellets
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French (fr)
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石雁羽
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Priority to PH1/2013/502300A priority Critical patent/PH12013502300A1/en
Priority to NZ617553A priority patent/NZ617553B2/en
Priority to CA2869585A priority patent/CA2869585A1/en
Priority to UAA201313022A priority patent/UA113405C2/uk
Priority to AU2012239720A priority patent/AU2012239720B2/en
Priority to EA201301152A priority patent/EA201301152A1/ru
Application filed by Individual filed Critical Individual
Priority to EP12768645.9A priority patent/EP2711005A4/en
Publication of WO2012136125A1 publication Critical patent/WO2012136125A1/zh
Priority to AP2013007238A priority patent/AP2013007238A0/xx
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Priority to MA36410A priority patent/MA35111B1/fr
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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
    • A61K9/14—Particulate form, e.g. powders, Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles
    • A61K9/16—Agglomerates; Granulates; Microbeadlets ; Microspheres; Pellets; Solid products obtained by spray drying, spray freeze drying, spray congealing,(multiple) emulsion solvent evaporation or extraction
    • A61K9/1605—Excipients; Inactive ingredients
    • A61K9/1629—Organic macromolecular compounds
    • A61K9/1635—Organic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyvinyl pyrrolidone, poly(meth)acrylates
    • 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
    • A61K31/33—Heterocyclic compounds
    • A61K31/335—Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin
    • A61K31/357—Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having two or more oxygen atoms in the same ring, e.g. crown ethers, guanadrel
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K33/00—Medicinal preparations containing inorganic active ingredients
    • A61K33/24—Heavy metals; Compounds thereof
    • A61K33/26—Iron; Compounds thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/48—Preparations in capsules, e.g. of gelatin, of chocolate
    • A61K9/50—Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals
    • A61K9/5005—Wall or coating material
    • A61K9/5021—Organic macromolecular compounds
    • A61K9/5026—Organic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyvinyl pyrrolidone, poly(meth)acrylates
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/48—Preparations in capsules, e.g. of gelatin, of chocolate
    • A61K9/50—Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals
    • A61K9/5084—Mixtures of one or more drugs in different galenical forms, at least one of which being granules, microcapsules or (coated) microparticles according to A61K9/16 or A61K9/50, e.g. for obtaining a specific release pattern or for combining different drugs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P35/00—Antineoplastic agents

Definitions

  • the invention belongs to the field of pharmacy, and relates to a double-release compound preparation which is prepared by preparing brominated dihydroartemisinin into enteric pellets and Fe 2+ agent to prepare gastric-soluble instant-release pellets and then filling the same capsule.
  • the formulations of the invention are primarily useful in the treatment of a broad spectrum of cancers.
  • bromo-dihydroartemisinin has a more effective anticancer effect than the parent nucleus-artemisinin (see the invention patent entitled 'Certification No.: CN100480250C Chinese Patent No.: CN200610144186.3').
  • the mechanism of action is due to the large amount of Fe 2+ required to replicate DNA when cancer cells divide, so the Fe 2+ content of cancer cells is much higher than that of normal cells.
  • the artemisinin molecule of bromodihydroartemisinin has a unique internal oxygen bridge structure. After contact with Fe 2+ , the internal oxygen bridge breaks to produce a charged atom called 'free radical'. It will attack the cell membrane, causing the cancer cells to swell or apoptotic.
  • the Fe 2+ and oxygen bridge groups are inseparable in anti-cancer function.
  • it has a good anti-cancer effect, and it is preferable to use Fe 2+ agent and Bromo-dihydroartemisinin is made into a compound preparation.
  • the Fe 2+ agent and the brominated dihydroartemisinin directly hit the surface (reacting) in the stomach, which is very likely to cause damage to the stomach wall cells.
  • a compound double release capsule preparation consisting of brominated dihydroartemisinin and a Fe 2+ agent.
  • the Fe 2+ agent it is absorbed in the stomach under the condition of gastric acid, and the bromo-dihydroartemisinin is absorbed in the jejunum.
  • the brominated dihydroartemisinin is coated and enteric coated, and the iron is Ordinary stomach-soluble pellets.
  • Bromo-dihydroartemisinin is a sustained-release, iron-based immediate release, which can eliminate the side effects of stomach injury by separating the two components in time and at the tissue site.
  • a compound double-release capsule preparation consisting of brominated dihydroartemisinin and Fe 2+ agent, including enteric pellets and gastric-soluble instant-release pellets, enteric solution
  • the pellets are made of brominated dihydroartemisinin and a pharmaceutically acceptable excipient, and then coated with an enteric coating;
  • the Fe 2+ agent is pharmaceutically acceptable
  • the agent is made into gastric-soluble instant-release pellets, and then the brominated dihydroartemisinin enteric-coated pellets and the Fe 2+ gastric-coated instant-release pellets are placed in a common stomach-soluble capsule shell to prepare a compound double-release capsule preparation.
  • the content of brominated dihydroartemisinin in the compound double-release capsule preparation is 15-20%
  • the content of Fe 2+ is 1.5-2.0%
  • the balance is excipient.
  • the Fe 2+ agent may be ferrous sulfate, ferrous lactate or ferrous succinate, and we prefer ferrous sulfate (FeSO 4 ⁇ 7H 2 O) in terms of mass percent in terms of brominated dihydroartemisinin.
  • ferrous sulfate FeSO 4 ⁇ 7H 2 O
  • the content of brominated dihydroartemisinin is 15-20%
  • the content of ferrous sulfate is 7.5-10%
  • the balance is excipient.
  • the invention provides a pellet core and a coating formula of the brominated dihydroartemisinin enteric pellets: the pellet core of the brominated dihydroartemisinin enteric pellets is composed of brominated dihydroartemisinin and lactose, starch, Magnesium stearate is prepared according to the conventional pellet pellet preparation method. Enteric coating of brominated dihydroartemisinin enteric pellets from enteric acrylic acid, ethylene phthalate, Tween -80, castor oil, made of 80% ethanol. Finally, the brominated dihydroartemisinin enteric pellets were prepared by coating according to the conventional pellet method.
  • the enteric coating of the above-mentioned brominated dihydroartemisinin enteric pellets is also suitable as a coating of a sustained release pellet by a commercially available enteric coating.
  • the present invention further provides a pellet core formulation gastric immediate-release pellets of Fe 2+ agent, pellet cores gastric immediate-release pellets of the Fe 2+ Fe 2+ agent agent with lactose, dextrin, and 10% PVP in ethanol was press
  • the existing pellets are prepared by a pellet core preparation method. The prepared pellets are quickly dissolved in the stomach.
  • the Fe 2+ agent gastric-soluble immediate release pellets may be subjected to gastric coating or non-coating treatment as needed.
  • the above two kinds of pellets may be provided with different color coats to distinguish or not include color coats, but the pile ratio is consistent. They are then dry blended at the respective clinically desired levels and filled with capsules. The clinical application of this dosage form is suitable for a broad spectrum of cancer medications.
  • METHODS Liver cancer MHCC97 cells in logarithmic growth phase were inoculated into a 96-well plate cell culture plate by routine digestion and then adjusted to 8 ⁇ 10 3 suspension. After culturing for 24 hours, the culture solution was aspirated, and ferrous sulfate and bromodihydroartemisinin (Br-DHA) were mixed with the cell culture solution at a certain ratio and then added. A blank control well and a Br-DHA control well were set and cultured in the incubator for 3 days. The cell count results of the conventional method are shown in Table 1.
  • the invention has the beneficial effects that the invention realizes that the patient can simultaneously take the brominated dihydroartemisinin enteric pellets and the Fe 2+ gastric dissolving immediate release pellets in the same capsule preparation, which is convenient to take and brominated dihydrogen Artemisinin enteric-coated pellets and Fe 2+ gastric-coated instant-release pellets are encapsulated, and Fe 2+ gastric-soluble immediate-release pellets are absorbed in the stomach under gastric acid conditions, and brominated dihydroartemisinin The dissolved pellets are absorbed in the jejunum, which avoids the effects of brominated dihydroartemisinin and Fe 2+ in the stomach and damages the cells in the stomach wall.
  • the brominated dihydroartemisinin is a sustained release
  • the Fe 2+ agent is an immediate release
  • the side effects of the stomach can be avoided by separating the two components in time and at the tissue site.
  • Pills and coatings are well known in the art of pharmacy.
  • the following examples primarily describe the formulation of a compound double release formulation.
  • the invention is not limited to the following embodiments:
  • brominated dihydroartemisinin enteric pellets weigh brominated dihydroartemisinin 33g, with lactose 50g, starch 28g, magnesium stearate 3g
  • the pellet core is prepared according to the conventional pellet method; the coating material is 62 g of enteric acrylic acid, 1 g of ethylene phthalate, Tween-80 0.8 g, castor oil 10 ml, 80% ethanol 20 ml. After the enteric acrylic acid is dissolved in 80% ethanol, the remaining coating ingredients are added, and after completely mixing, a coating material is obtained, and the above-mentioned pellet core is coated with the coating material to prepare brominated dihydroartemisinin enteric solution.
  • Pellets, pellets size 30 Head The formulation has a sustained release time of 2-3 hours, a dissolved pH of 5.3-6.5, and is independent of the thickness of the coating layer, and meets the clinical requirements for dissolution in the stomach and dissolution in the intestinal tract.
  • Fe 2+ agent (ferrous succinate) gastric-soluble immediate release pellets weigh 20g of ferrous succinate, 25g of lactose and 15g of dextrin as solid dispersion carrier, suitable amount of 10% PVP ethanol solution as binder, solvent method The granules obtained ferrous succinate gastric-soluble immediate release pellets, and the pellets had a particle size of 30 mesh.
  • brominated dihydroartemisinin enteric pellets weighed 40 g of bromodihydroartemisinin, and 72 g of lactose, 5 g of magnesium stearate , made into a pellet core; the coating material is 6 g of enteric acrylic acid, 0.8 g of ethylene phthalate, Tween-80 1 g, 10 ml of castor oil, 20 ml of 80% ethanol; After 80% ethanol, the remaining coating ingredients were added, and the mixture was completely mixed and coated to have a particle size of 30 mesh.
  • Fe 2+ agent ferrous sulfate
  • gastric-soluble immediate release pellets weigh 20 g of ferrous sulfate, 30 g of lactose and 10 g of dextrin as solid dispersion carrier, appropriate amount of 10% PVP ethanol solution as binder, solvent granulation, The particle size is 30 mesh.
  • brominated dihydroartemisinin enteric pellets Weigh 44 g of bromodihydroartemisinin, 50 g with lactose, 23 g of starch, 3 g of magnesium stearate , made into a pellet core; the coating material is made of enteric acrylic acid 6g, ethylene phthalate 1.2g, Tween-80 0.8g, castor oil 5ml, 80% ethanol 25ml; enteric acrylic acid soluble After 80% ethanol, the remaining coating ingredients were added, and the mixture was completely mixed and coated to have a particle size of 30 mesh.
  • Fe 2+ (ferrous lactic acid) gastric-soluble immediate release pellets weigh 22 g of ferrous lactate, 20 g of lactose and 20 g of dextrin as solid dispersion carrier, 10% PVP ethanol solution as binder, solvent granulation, The particle size is 30 mesh.
  • brominated dihydroartemisinin enteric-coated pellets and ferrous lactate gastric-soluble instant-release pellets are dry-mixed (fully mixed uniformly), and filled 1000 Capsules.
  • Test items Dissolution in gastric juice Dissolution in intestinal solution
  • Ferrous lactic acid gastric-soluble immediate release pellets 1 hour, 80% 2 hours, 85% Brominated dihydroartemisinin enteric pellets 8 hours, no dissolution 2 hours, 86%
  • Method 40 rats, half male and half female.
  • Human lung cancer cell line A549 was inoculated subcutaneously under the shoulder. After 2 weeks, when the tumor volume was about 1 cm 3 , they were randomly divided into 4 groups: a model group, a paclitaxel control group, a dihydroartemisinin control group, and a compound double-release capsule preparation group prepared in Example 2.
  • Paclitaxel was injected at a clinical dose; dihydroartemisinin was administered as a carboxymethylcellulose suspension at a dose of 0.898 mg/day; the compound double-release capsule preparation prepared in Example 2 was taken out and taken out.
  • Brominated dihydroartemisinin enteric-coated pellets and ferrous sulfate gastric-soluble immediate release pellets each of which is administrated with carboxymethylcellulose containing 4.4 mg of bromodihydroartemisinin enteric pellets per day.
  • the rats in the model group were administrated with carboxymethyl cellulose suspension.
  • the tumor volume was measured twice a week, and sacrificed at 4 weeks. The results are shown in Table 5.
  • Example 2 For taking Example 2 The rats in the compound double-release capsule preparation group were observed after the tumor was isolated. The section of the tumor was grayish white and the center was flocculent. The area of the cell-free structure is large, and the internal necrotic area is about 76.47%. . Mucosal edema is localized around the necrosis. Sectioning further showed that the formulation had significant killing of cancer cells.

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Description

由溴代双氢青蒿素和 Fe2+ 剂组成的复方双释胶囊制剂
技术领域
本发明属于药学领域,涉及一种将溴代双氢青蒿素制成肠溶微丸与 Fe2+ 剂制成胃溶速释微丸后装入同一胶囊的双释复方制剂。本发明的制剂主要用于治疗广谱的癌症。
背景技术
我们早期的研究表明:溴代双氢青蒿素具有比母核-青蒿素更加高效的抗癌作用(详见'授权公告号为: CN100480250C 中国专利号: CN200610144186.3'的发明专利)。作用机理是由于癌症细胞分裂时需要大量Fe2+ 质才能复制 DNA ,因此癌细胞的 Fe2+ 质含量比正常细胞高出许多。而溴代双氢青蒿素的青蒿素分子中带有一个独特的内氧桥结构,它和 Fe2+ 接触以后内氧桥断裂产生称为'自由基'的带电原子,此带电自由基会向细胞膜发起攻击,造成癌细胞的胀亡或凋亡。由此可见, Fe2+ 和氧桥基团在抗癌功能上具有不可分割性,在临床上,为了患者服用方便,同时起到较好的抗癌效果,最好是将 Fe2+ 剂和溴代双氢青蒿素制成复方制剂。但是, Fe2+ 剂和溴代双氢青蒿素在胃里面直接碰面(起反应)极易对胃壁细胞造成伤害。
发明内容
鉴于上述问题,本发明的目的是提供一种由溴代双氢青蒿素和 Fe2+ 剂组成的复方双释胶囊制剂。根据 Fe2+ 剂是在胃酸条件下、在胃里面吸收,而溴代双氢青蒿素是在空肠开始吸收的特点,将溴代双氢青蒿素包肠溶衣制丸,铁剂为普通胃溶微丸。溴代双氢青蒿素为缓释、铁剂为速释,在时间上和组织部位上将两种成份分开就可避免伤胃的副作用。
为了达到上述目的,本发明采用了以下技术方案:一种由溴代双氢青蒿素和 Fe2+ 剂组成的复方双释胶囊制剂,包括肠溶微丸和胃溶速释微丸,肠溶微丸是由溴代双氢青蒿素与药学上可接受的赋形剂制成丸芯后再由肠溶包衣料包肠溶衣而成; Fe2+ 剂则与药学上可接受的赋形剂制成胃溶速释微丸,然后将溴代双氢青蒿素肠溶微丸和 Fe2+ 剂胃溶速释微丸装于普通胃溶胶囊壳中制成复方双释胶囊制剂,按质量百分比计,此复方双释胶囊制剂中溴代双氢青蒿素含量为 15-20% , Fe2+ 含量为 1.5~2.0% ,余量为赋形剂。
本发明中 Fe2+ 剂可以为硫酸亚铁,乳酸亚铁或琥珀酸亚铁,我们优选硫酸亚铁( FeSO4 · 7H2O ),按质量百分比计,在由溴代双氢青蒿素和 Fe2+ 剂组成的复方双释胶囊制剂中,溴代双氢青蒿素含量为 15-20% ,硫酸亚铁含量为 7.5~10% ,余量为赋形剂。
本发明提供了溴代双氢青蒿素肠溶微丸的丸芯及包衣配方:溴代双氢青蒿素肠溶微丸的丸芯由溴代双氢青蒿素与乳糖,淀粉,硬脂酸镁按常规微丸丸芯制备法制成。溴代双氢青蒿素肠溶微丸的肠溶包衣料由肠溶丙烯酸,苯二甲酸乙二酯,吐温 -80 ,蓖麻油, 80% 乙醇制成。最后按照常规制微丸法进行包衣制备得到溴代双氢青蒿素肠溶微丸。
上述溴代双氢青蒿素肠溶微丸的肠溶包衣料也适合用市售肠溶包衣料作为缓释微丸的包衣。
本发明还提供了 Fe2+ 剂胃溶速释微丸的丸芯配方, Fe2+ 剂胃溶速释微丸的丸芯由 Fe2+ 剂与乳糖,糊精及 10%PVP 乙醇液按现有微丸丸芯制备法制成。所制微丸为胃溶速释。本发明中,可根据需要对 Fe2+ 剂胃溶速释微丸进行包胃溶衣或者不包衣处理。
上述两种微丸(溴代双氢青蒿素肠溶微丸和 Fe2+ 剂胃溶速释微丸)可分别包不同的彩衣以示区别或不包彩衣,但堆比要一致,然后按各自的临床所需含量比例进行干混,装填胶囊。本剂型临床应用适合于广谱的癌症用药。
我们选取硫酸亚铁和溴代双氢青蒿素组合(复方制剂)做以下体外抗肿瘤试验:
方法:取对数生长期的肝癌 MHCC97 细胞 , 按常规消化后调成 8×103 的悬液接种于 96 孔板细胞培养板中。培养 24h 后吸出培养液,按一定比例将硫酸亚铁和溴代双氢青蒿素( Br-DHA )与细胞培养液调配后再加入。设空白对照孔和 Br-DHA 对照孔 , 于培养箱内继续培养 3 天。常规方法细胞计数结果见表 1 。
表 1 Fe 2+ 剂(硫酸亚铁)和溴代双氢青蒿素对人癌细胞株 MHCC97 体外抗肿瘤活性
组别 样本数 药物剂量 细胞存活率 %
硫酸亚铁( nM ) 溴代双氢青蒿素( nM )
空白对照 4 - - 100.0 ± 8.9
溴代双氢青蒿素 4 - 400 80.2 ± 16.5
复方制剂 4 100 400 16.3 ± 3.8
4 100 200 23.7 ± 8.9
4 100 100 26.6 ± 12.1
4 100 50 33.1 ± 4.5
本实验显示, Fe2+ 剂(硫酸亚铁)和 Br-DHA 的复方有显著的体外抗肿瘤作用。
本发明的有益效果在于:本发明实现了在同一胶囊制剂中患者可同时服用溴代双氢青蒿素肠溶微丸和 Fe2+ 剂胃溶速释微丸,服用方便,并且溴代双氢青蒿素肠溶微丸和 Fe2+ 剂胃溶速释微丸装成胶囊剂, Fe2+ 剂胃溶速释微丸在胃酸条件下、在胃里面吸收,溴代双氢青蒿素肠溶微丸是在空肠开始吸收,避免了溴代双氢青蒿素和 Fe2+ 剂在胃部作用,对胃壁细胞造成伤害的后果。同时,溴代双氢青蒿素为缓释、 Fe2+ 剂为速释,在时间上和组织部位上将两种成份分开就可避免伤胃的副作用。
具体实施方式
本发明用以下实施例加以说明。制丸和包衣均为药学的公知技术 , 以下实施例主要描述复方双释制剂的组方。但本发明不限于以下实施例:
实施例 1
制备溴代双氢青蒿素肠溶微丸:称取溴代双氢青蒿素 33g ,与乳糖 50g 、淀粉 28g 、硬脂酸镁 3g ,按常规制微丸法制成丸芯;其包衣料选用肠溶丙烯酸 62g ,苯二甲酸乙二酯 1g ,吐温 -80 0.8g ,蓖麻油 10ml , 80% 乙醇 20ml ;先将肠溶丙烯酸溶于 80% 乙醇后,再加入其余包衣料成分,待完全混匀后得到包衣料,用此包衣料对前述丸芯进行包衣制备溴代双氢青蒿素肠溶微丸,微丸粒径 30 目。该配方的包衣料缓释时间为 2-3 小时,溶解 PH 为 5.3-6.5 ,并与包衣层厚无关,符合不能在胃酸中溶解而要在肠道中溶解的临床要求。
制备 Fe2+ 剂(琥珀酸亚铁)胃溶速释微丸:称取琥珀酸亚铁 20g , 乳糖 25g 及糊精 15g 为固体分散体系载体 , 适量 10%PVP 乙醇液为黏合剂,溶剂法制粒得到琥珀酸亚铁胃溶速释微丸,微丸粒径 30 目。
溴代双氢青蒿素肠溶微丸包彩衣,琥珀酸亚铁胃溶速释微丸不包外衣,然后进行干混(充分混合均匀),装填 1000 粒胶囊。
按《中国药典 2005 版二部附录》配制胃液及肠溶液,按溶出度测定法检测:
表 2
检测项目 胃液中溶出度 肠溶液中溶出度
琥珀酸亚铁 胃溶速释微丸 1 小时, 60% 2 小时, 87%
溴代双氢青蒿素肠溶微丸 8 小时,未溶出 2 小时, 62%
实施例 2
制备溴代双氢青蒿素肠溶微丸:称取溴代双氢青蒿素 40g ,与乳糖 72g ,硬脂酸镁 5g ,制成丸芯;其包衣料用肠溶丙烯酸 6g ,苯二甲酸乙二酯 0.8g ,吐温 -80 1g ,蓖麻油 10ml , 80% 乙醇 20ml ;肠溶丙烯酸溶于 80% 乙醇后,再加入其余包衣料成分,完全混匀后进行包衣,粒径 30 目。
制备 Fe2+ 剂(硫酸亚铁)胃溶速释微丸:称取硫酸亚铁 20g , 乳糖 30g 及糊精 10g 为固体分散体系载体 , 适量 10%PVP 乙醇液为黏合剂,溶剂法制粒,粒径 30 目。
溴代双氢青蒿素肠溶微丸包彩衣,硫酸亚铁胃溶速释微丸包素衣,然后进行干混(充分混合均匀),装填 1000 粒胶囊。
按《中国药典 2005 版二部附录》配制胃液及肠溶液,按溶出度测定法检测:
表 3
检测项目 胃液中溶出度 肠溶液中溶出度
硫酸亚铁 胃溶速释微丸 1 小时, 95% 2 小时, 90%
溴代双氢青蒿素肠溶微丸 8 小时,未溶出 2 小时, 90%
实施例 3
制备溴代双氢青蒿素肠溶微丸:称取溴代双氢青蒿素 44g ,与乳糖 50g 、淀粉 23g 、硬脂酸镁 3g ,制成丸芯;其包衣料用肠溶丙烯酸 6g ,苯二甲酸乙二酯 1.2g ,吐温 -80 0.8g ,蓖麻油 5ml , 80% 乙醇 25ml ;肠溶丙烯酸溶于 80% 乙醇后,加入其余包衣料成分,完全混匀后进行包衣,粒径 30 目。
制备 Fe2+ 剂(乳酸亚铁)胃溶速释微丸:称取乳酸亚铁 22g , 乳糖 20g 及糊精 20g 为固体分散体系载体 , 适量 10%PVP 乙醇液为黏合剂,溶剂法制粒,粒径 30 目。
将上述溴代双氢青蒿素肠溶微丸和乳酸亚铁胃溶速释微丸进行干混(充分混合均匀),装填 1000 粒胶囊。
按《中国药典雅 005 版二部附录》配制胃液及肠溶液,按溶出度测定法检测:
表 4
检测项目 胃液中溶出度 肠溶液中溶出度
乳酸亚铁剂胃溶速释微丸 1 小时, 80% 2 小时, 85%
溴代双氢青蒿素肠溶微丸 8 小时,未溶出 2 小时, 86%
用本发明复方双释胶囊制剂做了以下体内抗肿瘤试验:
方法: 大鼠 40 只,雌雄各半。人肺癌细胞株 A549 接种于肩背皮下。 2 周后瘤体积约为 1cm3 时,随机分成 4 组:模型组,紫杉醇对照组,双氢青蒿素对照组,实施例 2 所制备的复方双释胶囊制剂组。紫杉醇按临床剂量折算后注射;双氢青蒿素按每日 0.898mg/ 只的剂量配成羧甲基纤维素悬浊液灌胃;将实施例 2 所制备的复方双释胶囊制剂拆散,取出溴代双氢青蒿素肠溶微丸和硫酸亚铁胃溶速释微丸,按每日每只大鼠同时灌胃含 4.4mg 溴代双氢青蒿素肠溶微丸的羧甲基纤维素悬浊液,和含 1.74mg 硫酸亚铁胃溶速释微丸的羧甲基纤维素悬浊液。上、下午各灌一次,模型组羧甲基纤维素悬浊液灌胃。每周测瘤体积 2 次, 4 周处死,取瘤称重。结果见表 5 。
表 5 硫酸亚铁和溴代双氢青蒿素双释制剂对人肺癌 A549 的抗肿瘤活性
组别 瘤体积 (mm ³ ) 瘤重量( g )
模型组 2059.52 ± 23.35 24.40 ± 17.13
紫杉醇组 1769.36 ± 10.11 18.35 ± 9.99
双氢青蒿素组 2285.62 ± 17.66 23.90 ± 5.51
复方双释胶囊(实施例 2 )制剂组 1008.53 ± 12.21 13.50 ± 8.78
本实验显示, Fe2+ 制剂和溴代双氢青蒿素的双释制剂在体内有显著的抗肿瘤活性,效果明显优于紫杉醇。
对服用实施例 2 复方双释胶囊制剂组的大鼠分离瘤体后做了组织切片的观察:瘤体切面灰白色,中心呈絮状。无细胞结构区域面积大,内部坏死面积约 76.47% 。坏死周边局部有粘液水肿。切片进一步显示,该制剂有明显的杀灭癌细胞功能。

Claims (8)

  1. 一种由溴代双氢青蒿素和 Fe2+ 剂组成的复方双释胶囊制剂,其特征在于:包括肠溶微丸和胃溶速释微丸,肠溶微丸是由溴代双氢青蒿素与药学上可接受的赋形剂制成丸芯后再由肠溶包衣料包肠溶衣而成; Fe2+ 剂则与药学上可接受的赋形剂制成胃溶速释微丸,然后将溴代双氢青蒿素肠溶微丸和 Fe2+ 剂胃溶速释微丸装于普通胃溶胶囊壳中制成复方双释胶囊制剂,按质量百分比计,此复方双释胶囊制剂中溴代双氢青蒿素含量为 15-20% , Fe2+ 含量为 1.5~2.0% 。
  2. 根据权利要求 1 所述的由溴代双氢青蒿素和 Fe2+ 剂组成的复方双释胶囊制剂,其特征在于 Fe2+ 剂为硫酸亚铁,乳酸亚铁或琥珀酸亚铁。
  3. 根据权利要求 2 所述的由溴代双氢青蒿素和 Fe2+ 剂组成的复方双释胶囊制剂,其特征在于:按质量百分比计,此复方双释胶囊制剂中溴代双氢青蒿素含量为
    15-20% ,硫酸亚铁含量为 7.5~10% 。
  4. 根据权利要求 1 或 3 所述的由溴代双氢青蒿素和 Fe2+ 剂组成的复方双释胶囊制剂,其特征是溴代双氢青蒿素肠溶微丸的丸芯由溴代双氢青蒿素与乳糖,淀粉,硬脂酸镁制成。
  5. 根据权利要求 1 或 3 所述的由溴代双氢青蒿素和 Fe2+ 剂组成的复方双释胶囊制剂,其特征是溴代双氢青蒿素肠溶微丸的肠溶包衣料由肠溶丙烯酸,苯二甲酸乙二酯,吐温 -80 ,蓖麻油, 80% 乙醇制成。
  6. 根据权利要求 1 或 3 所述的由溴代双氢青蒿素和 Fe2+ 剂组成的复方双释胶囊制剂,其特征是溴代双氢青蒿素肠溶微丸的肠溶包衣料也适合用市售肠溶包衣料作为缓释微丸的包衣。
  7. 根据权利要求 1 或 3 所述的由溴代双氢青蒿素和 Fe2+ 剂组成的复方双释胶囊制剂,其特征是 Fe2+ 剂胃溶速释微丸的丸芯由 Fe2+ 剂与乳糖,糊精及10%PVP 乙醇液制成。
  8. 一种由溴代双氢青蒿素和 Fe2+ 剂组成的复方双释胶囊制剂作为抗肿瘤药物的应用。
PCT/CN2012/073436 2011-04-08 2012-03-31 由溴代双氢青蒿素和Fe2+剂组成的复方双释胶囊制剂 Ceased WO2012136125A1 (zh)

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NZ617553A NZ617553B2 (en) 2011-04-08 2012-03-31 Compound dual-release capsule formulation comprised of bromodihydroartemisinin and a fe2+ agent
CA2869585A CA2869585A1 (en) 2011-04-08 2012-03-31 Compound dual-release capsule formulation comprised of bromodihydroartemisinin and fe2+ agent
UAA201313022A UA113405C2 (xx) 2011-04-08 2012-03-31 КОМБІНОВАНА КАПСУЛЬНА КОМПОЗИЦІЯ З ПОДВІЙНИМ ВИВІЛЬНЕННЯМ, ЩО МІСТИТЬ БРОМДИГІДРОАРТЕМІЗИНІН І ДВОВАЛЕНТНЕ ЗАЛІЗО Fе2+
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EA201301152A EA201301152A1 (ru) 2011-04-08 2012-03-31 СЛОЖНАЯ ЛЕКАРСТВЕННАЯ ФОРМА В ВИДЕ КАПСУЛ, СОСТОЯЩИХ ИЗ БРОМДИГИДРОАРТЕМИЗИНИНА И ПРЕПАРАТА Fe, С ДВУХФАЗНЫМ ВЫСВОБОЖДЕНИЕМ
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CN104086560A (zh) * 2014-07-03 2014-10-08 唐心建 卤代青蒿素母核、卤代青蒿素衍生物、卤代双氢青蒿素、卤代脱羰青蒿素以及医药用途
CN108451976A (zh) * 2018-07-02 2018-08-28 上海应用技术大学 一种硫酸亚铁微丸及其制备方法
CN110051660A (zh) * 2019-04-28 2019-07-26 南方医科大学 双氢青蒿素在制备治疗emt介导的人肝癌细胞药物中的应用
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