CN105792849A - 注射剂及形成贮库的方法 - Google Patents
注射剂及形成贮库的方法 Download PDFInfo
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- CN105792849A CN105792849A CN201480065784.4A CN201480065784A CN105792849A CN 105792849 A CN105792849 A CN 105792849A CN 201480065784 A CN201480065784 A CN 201480065784A CN 105792849 A CN105792849 A CN 105792849A
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- CN
- China
- Prior art keywords
- injection
- preparation example
- trehalose
- gellan gum
- medicine
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- Legal status (The legal status 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 status listed.)
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- 230000015572 biosynthetic process Effects 0.000 title description 2
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- HDTRYLNUVZCQOY-LIZSDCNHSA-N alpha,alpha-trehalose Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@@H]1O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 HDTRYLNUVZCQOY-LIZSDCNHSA-N 0.000 claims abstract description 49
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Abstract
本发明的目的在于提供一种药物缓释性优异的新型注射剂。本发明的注射剂含有药物、海藻糖、和结冷胶。优选相对于注射剂的总体积,药物的含量为0.0001~50.00%(w/v),海藻糖的含量为0.1~50.0%(w/v),结冷胶的含量为0.01~3.00%(w/v)。优选注射剂是与磷酸缓冲液、体液(泪液、玻璃体液等)接触而形成贮库的注射剂。
Description
技术领域
本发明涉及注射剂及形成贮库的方法。
背景技术
在视网膜、脉络膜、视神经、玻璃体及巩膜等眼后段的疾病中,难治性疾病多,期待开发有效地治疗这些疾病的药物治疗方法。针对眼睛疾病,通常以滴眼给药的方式进行治疗,但药物不易到达视网膜、脉络膜、视神经、玻璃体及巩膜等眼后段。
因此,作为针对眼后段疾病的药物的给予手段,已着眼于玻璃体注射、结膜下注射等的注射剂。然而,注射剂的给予给患者带来较大负担,因此,为了避免频繁给予,期望长时间维持患处的药物浓度。例如,专利文献1中公开了以将作为药物的磺酰基苯并咪唑衍生物缓释的方式制成眼内给予用制剂。
专利文献1:日本特表2009-536918号公报
发明内容
本发明是鉴于以上实际情况而完成的,目的在于提供一种药物缓释性优异的新型注射剂。
(1)一种注射剂,其含有药物、海藻糖(trehalose)、和结冷胶(gellangum)。
(2)如(1)所述的注射剂,其中,相对于所述注射剂的总体积,所述药物的含量为0.0001~50.00%(w/v),海藻糖的含量为0.1~50.0%(w/v),结冷胶的含量为0.01~3.00%(w/v)。
(3)如(1)或(2)所述的注射剂,其中,所述注射剂是与磷酸缓冲液、体液或模拟体液接触而形成贮库(depot)的注射剂。
(4)如(1)~(3)中任一项所述的注射剂,其中,所述注射剂用于玻璃体内给予。
(5)如(1)~(4)中任一项所述的注射剂,其中,所述注射剂用于向脉络膜视网膜供给所述药物。
(6)一种形成贮库的方法,包括下述步骤:使含有药物、海藻糖、和结冷胶的液态组合物与体液、模拟体液或磷酸缓冲液接触。
根据本发明,通过除了包含药物之外还包含海藻糖和结冷胶的组合,可提供药物缓释性优异的注射剂。
附图说明
图1是表示将本发明的一实施例的注射剂向玻璃体内给予后的贮库形成的图。
具体实施方式
以下说明本发明的实施方式,但这不限制本发明。
本发明的注射剂含有药物、海藻糖、和结冷胶。通过除了包含药物之外还包含海藻糖和结冷胶的组合,可提供药物的缓释性优异的注射剂。本申请发明人发现,海藻糖提高药物(尤其是斥水性的药物)的润湿性、并且使注射剂等渗的性能优异,不仅如此,还提高药物分散性。另一方面,本申请发明人发现,结冷胶在给予了注射剂的部位良好地形成贮库,该贮库具有使药物缓释的作用。另外,推测通过使海藻糖共存,从而使贮库强度增加,可实现更优异的药物缓释性。
本发明中的海藻糖可以是α,α-海藻糖、α,β-海藻糖、β,β-海藻糖中的1种以上,优选包含α,α-海藻糖。从充分发挥上述作用的观点考虑,海藻糖相对于注射剂的总体积的含量优选为0.1%(w/v)以上,更优选为1.0%(w/v)以上、3.0%(w/v)以上、4.0%(w/v)以上、4.5%(w/v)以上、5.0%(w/v)以上。从注射剂的渗透压调节等观点考虑,上述海藻糖的含量优选为50.0%(w/v)以下,更优选为20.0%(w/v)以下、10.0%(w/v)以下。
另外,鉴于上述作用,还优选根据药物的种类或结冷胶的含量来优化海藻糖的含量。
需要说明的是,本发明的注射剂可以进一步含有海藻糖以外的糖类。作为这样的糖类,可举出选自单糖~六糖、它们的糖醇、透明质酸、麦芽糊精(maltodextrin)、及聚乙烯吡咯烷酮中的糖类化合物。
从充分发挥上述作用的观点考虑,结冷胶相对于注射剂的总体积的含量优选为0.01%(w/v)以上、0.03%(w/v)以上、或0.05%(w/v)以上,更优选为0.10%(w/v)以上、0.20%(w/v)以上、0.30%(w/v)以上、0.40%(w/v)以上。从注射剂的粘度调节等观点考虑,上述结冷胶的含量优选为3.00%(w/v)以下,更优选为2.0%(w/v)以下、1.0%(w/v)以下。
另外,鉴于上述作用,还优选根据药物的种类或海藻糖的含量来优化结冷胶的含量。例如,海藻糖的含量为20%(w/v)以上时,结冷胶的含量可以为0.01%(w/v)以上、0.20%(w/v)以下。该组合尤其适合于包含倍他米松(betamethasone)作为药物的情况。海藻糖的含量低于20%(w/v)时,结冷胶的含量可以为0.10%(w/v)以上、3.00%(w/v)以下。
本发明中的结冷胶可以是离子响应性的脱酰基型结冷胶、热响应性的天然(native)型结冷胶中的1种以上。从可以不进行注射剂的温度调节(在给予前调节至高温而进行溶胶化)方面考虑,更优选为脱酰基型结冷胶。
药物可根据注射剂所要求的药效适当选择,具体而言,可以是能溶于水的药物,也可以是不易溶于水的药物,作为优选的药物,可举出例如他菲替尼(Tafetinib)、SIM-817378、ACTB-1003、西奥罗尼(Chiauranib)、CT-53608、肉桂(Cinnamon)、chim4G8-SDIE、CEP-5214、IMC-1C11、CEP-7055、3-[5-[2-[N-(2-甲氧基乙基)-N-甲基氨基]乙氧基]-1H-吲哚-2-基]喹啉-2(1H)-酮、hF4-3C5、ZK-CDK、IMC-EB10、LS-104、CYC-116、OSI-930、PF-337210、JNJ-26483327、SSR-106462、R-1530、PRS-050、TG-02、SC-71710、SB-1578、AMG-191、AMG-820、索凡替尼(Sulfatinib)、德立替尼盐酸盐(Lucitanibhydrochloride)、JNJ-28312141、依洛赛替(Ilorasertib)、PLX-5622、ARRY-382、TAS-115、Tanibirumab、海那替尼马来酸盐(Henatinibmaleate)、LY-2457546、PLX-7486、FPA-008、NVP-AEE-788、cgi-1842、RAF-265、MK-2461、SG-00529、Rebastinibtosylate、Golvatinibtartrate、Roniciclib、BVT-II、X-82、XV-615、KD-020、来他替尼(Lestaurtinib)、飞燕草素(Delphinidin)、司马沙尼(Semaxanib)、琥珀酸瓦他拉尼(Vatalanibsuccinate)、OSI-632、替拉替尼(Telatinib)、培化阿珠单抗(Alacizumabpegol)、ATN-224、Tivozanib、XL-999、Icrucumab、Foretinib、Crenolanibbesylate、R-406、布立尼布(Brivanib)、Pegdinetanib、TG-100572、Olaratumab、福他替尼二钠(Fostamatinibdisodium)、BMS-690514、AT-9283、MGCD-265、奎扎替尼(Quizartinib)、ENMD-981693、法米替尼苹果酸盐(Famitinibmalate)、厄洛替尼(Anlotinib)、Tovetumab、PLX-3397、呋喹替尼(Fruquintinib)、(-)-表没食子儿茶素没食子酸盐((-)-Epigallocatechingallate)、米哚妥林(Midostaurin)、NSC-706456、Orantinib、西地尼布(Cediranib)、多韦替尼乳酸盐(Dovitiniblactate)、XL-647、二磷酸莫特塞尼(Motesanibdiphosphate)、利尼伐尼(Linifanib)、Brivanibalaninate、西地尼布马来酸盐(Cediranibmaleate)、阿帕替尼(Apatinib)、Fedratinib、帕克替尼(Pacritinib)、Ramucirumab、尼达尼布(Intedanib)、马赛替尼甲磺酸盐(Masitinibmesylate)、榄香烯(Elemene)、二氢青蒿素(Dihydroartemisinin)、WS-1442、伊曲康唑(Itraconazole)、来氟米特(Leflunomide)、二氢青蒿素(Dihydroartemisinin)、甲磺酸伊马替尼(Imatinibmesylate)、索拉非尼(Sorafenib)、苹果酸舒尼替尼(Sunitinibmalate)、达沙替尼(Dasatinib)、盐酸帕唑帕尼(Pazopanibhydrochloride)、凡德他尼(Vandetanib)、阿西替尼(Axitinib)、瑞格非尼(Regorafenib)、卡博替尼S-苹果酸盐(CabozantinibS-malate)及普纳替尼(Ponatinib)、2-[[[2-[(羟基乙酰基)氨基]-4-吡啶基]甲基]硫基]-N-[4-(三氟甲氧基)苯基]-3-吡啶甲酰胺等酪氨酸激酶抑制剂、氢化可的松(hydrocortisone)、去炎松(triamcinolone)、氟轻松(Fluocinolone)、地塞米松(dexamethasone)、倍他米松等类固醇、异丙基乌诺前列酮(Isopropylunoprostone)等前列腺素、环孢菌素(Cyclosporine)、西罗莫司(sirolimus)(雷帕霉素(Rapamycin))等免疫抑制剂、氮卓斯汀(Azelastine)等抗过敏剂、吲哚美辛(indomethacin)、溴酚酸(Bromfenac)、双氯芬酸(Diclofenac)等非甾体性抗炎症剂、帕唑帕尼(Pazopanib)、SU5416、瓦他拉尼(Valatinib)、兰尼单抗(Ranibizumab)、贝伐单抗(Bevacizumab)等新生血管抑制药、尼卡地平(nicardipine)、尼群地平(Nitrendipine)等循环改善药、维生素E等抗氧化剂、乙酰唑胺(Acetazolamide)、布林佐胺(Brinzolamide)等碳酸酐酶抑制剂、噻吗洛尔(timolol)、前列腺素衍生物等降眼压药、各种维生素A衍生物等视觉周期调节物(visualcyclemodulator)、睫状体营养因子(CNTF)、脑来源神经营养因子(BDNF)等营养因子、神经生长因子(NGF)、干细胞生长因子(HGF)之类的各种生长因子、哌加他尼(Pegaptanib)等适体(aptamer)、各种反义核酸、siRNA之类的核酸药物、Lucentis、IgG等抗体·肽制剂、日本特开2006-96739、日本特开2011-37844、日本特开2005-232149、日本特开2006-273851、日本特开2006-306861、日本特开2008-266294等中记载的VEGF抑制剂、日本特开2007-230993、日本特开2008-074829、日本特开2008-143889、日本特开2008-143890、日本特开2008-143891、日本特开2009-007344、日本特开2009-084274等中记载的具有糖皮质激素(glucocorticoid)受体结合活性的化合物、RU24858等选择性的糖皮质激素受体激动剂(agonist)、氟尿嘧啶(fluorouracil)等抗癌剂、托法替尼(tofacitinib)等JAK激酶(Januskinase)抑制剂、Ruboxistaurinmesylate等蛋白激酶(proteinkinase)抑制剂等。
药物相对于注射剂的总体积的含量优选为0.0001%(w/v)以上,更优选为0.05%(w/v)以上、0.10%(w/v)以上、0.30%(w/v)以上、0.50%(w/v)以上、1.0%(w/v)以上。另外,由于本发明的注射剂的药物缓释性优异,所以即使较少量的药物,也可起到优异的治疗/预防效果,因此,上述药物的含量优选为50.00%(w/v)以下,更优选为40.00%(w/v)以下、30.00%(w/v)以下、25.00%(w/v)以下。
本发明的注射剂除了包含上述成分之外,还可包含水等分散介质、渗透压调节剂、缓冲剂等。
本发明的注射剂没有特别限制,能够形成贮库而发挥缓释性。对于本发明中形成贮库的条件而言,可以是与磷酸缓冲液、体液(泪液、玻璃体液等)接触,采用对应于各种条件的处方及给予方法即可。例如,对于通过与体液(泪液、玻璃体液等)的接触而形成贮库的注射剂而言,向体内、玻璃体内注射给予即可。另外,也可向模拟体液、磷酸缓冲液等各种试验液中给予。由此,可在各给予处形成贮库,并将药物缓释。
例如向玻璃体内给予本发明的注射剂时,在给予部位附近形成贮库,因此,可有效且持续地向眼内的患处(例如脉络膜视网膜)供给药物。
这种情况下,本发明的注射剂可适用于眼后段疾病的治疗/预防。作为眼后段疾病,可举出因各种原因而导致的炎症、病毒、细菌的感染症、视网膜脉络膜的新生血管、因血管透过性亢进而导致的疾病、视网膜脉络膜的肿瘤性疾病、视网膜膜脉络膜的遗传性疾病、因青光眼而导致的视神经障碍。更具体而言,可举出眼内炎、葡萄膜炎、巨细胞病毒视网膜炎、老年黄斑变性、糖尿病性视网膜病变、增生性玻璃体视网膜病变、视网膜静脉阻塞、视网膜动脉阻塞、视网膜剥离、中心性浆液性脉络膜视网膜病变、视网膜母细胞瘤、视网膜色素变性、黄斑营养不良、无脉络膜症(choroideremia)、色盲、先天视网膜分离症、伴随青光眼的视野狭窄、视野缺失等。其中,本发明的注射剂可根据药物、给予方法用于各种疾病的治疗/预防。
本发明的注射剂可通过适当方法进行制造,例如,首先将结冷胶添加到溶剂中,制备基剂。溶剂为生理上可接受的溶剂即可,优选为注射用蒸馏水。向该基剂中添加药物,使其均匀分散、悬浮或溶解,制备注射剂。对于药物在基剂中的悬浮而言,在固体药物的情况下,通过将固体的药物充分粉碎,然后均匀分散到基剂中而或者通过将液态的药物乳化来进行即可。作为乳化方法,可举出界面化学的乳化方法、机械乳化方法、膜乳化方法等。
本发明还包括形成贮库的方法,所述形成贮库的方法包括下述步骤:使含有药物、海藻糖、和结冷胶的液态组合物与体液、模拟体液或磷酸缓冲液接触。
实施例
〔1〕制剂例1~3及比较例1~2的制备
制剂例1
在容量瓶中装入0.025g的2-[[[2-[(羟基乙酰基)氨基]-4-吡啶基]甲基]硫基]-N-[4-(三氟甲氧基)苯基]-3-吡啶甲酰胺(以下记为“化合物A”),添加0.5mL的0.4%聚氧乙烯山梨糖醇酐单月桂酸酯(Tween20)水溶液,用搅拌器(stirrer)和超声波使其分散。接下来,添加0.8mL经灭菌的50%海藻糖水溶液,用搅拌器进行搅拌,然后,添加2mL的1%脱酰基型结冷胶水溶液,再次用搅拌器进行搅拌,进而用注射用水定容至5mL,制备注射剂。
制剂例2
在容量瓶中装入0.125g化合物A,添加0.5mL的0.4%聚氧乙烯山梨糖醇酐单月桂酸酯(Tween20)水溶液,用搅拌器和超声波使其分散。接下来,添加0.8mL的50%海藻糖水溶液,用搅拌器进行搅拌,然后,添加2mL的1%脱酰基型结冷胶水溶液,再次用搅拌器进行搅拌,进而用注射用水定容至5mL,制备注射剂。
制剂例3
在容量瓶中装入0.250g化合物A,添加0.5mL的0.4%聚氧乙烯山梨糖醇酐单月桂酸酯(Tween20)水溶液,用搅拌器和超声波使其分散。接下来,添加0.8mL经灭菌的50%海藻糖水溶液,用搅拌器进行搅拌,然后,添加2mL的1%脱酰基型结冷胶水溶液,再次用搅拌器进行搅拌,进而用注射用水定容至5mL,制备注射剂。
比较例1
在容量瓶中装入0.125g化合物A,添加0.5mL的0.4%聚氧乙烯山梨糖醇酐单月桂酸酯(Tween20)水溶液,用搅拌器和超声波使其分散。接下来,添加0.8mL的50%海藻糖水溶液,用搅拌器进行搅拌,然后,用注射用水定容至5mL,制备注射剂。
比较例2
在容量瓶中装入0.125g化合物A,添加0.5mL的0.4%聚氧乙烯山梨糖醇酐单月桂酸酯(Tween20)水溶液,用搅拌器和超声波使其分散。接下来,添加0.8mL的1%脱酰基型结冷胶水溶液,再次用搅拌器进行搅拌,进而用注射用水定容至5mL,制备注射剂。然而,由于得到的注射剂成为包含凝集物的不均匀悬浮液,所以无法用于之后的溶出试验。
〔2〕制剂例1~3及比较例1~2中得到的各注射剂的溶出试验
向装有50mL含有1%聚乙二醇单硬脂酸酯(MYS40)的10mM中性磷酸缓冲液(Dulbecco'sPBS)的玻璃试管中,分别添加0.02mL制剂例1~3、比较例1中得到的各注射剂,于37℃缓慢振荡。在溶出试验开始1天后及3天后,回收1mL的溶出液,使用酶标仪(microplatereader),由270nm吸光度计算出溶出液中的化合物A的浓度。需要说明的是,标准曲线使用了0.000313mg/mL、0.000625mg/mL、0.00125mg/mL、0.0025mg/mL、0.005mg/mL及0.01mg/mL的将化合物A溶解在含有1%MYS40的10mM中性磷酸缓冲液(Dulbecco'sPBS)中而得到的溶液。将它们的试验结果示于表1。
[表1]
由表1可知,制剂例1~3中,药剂(化合物A)均显示出良好的缓释化效果(药物释放率),与此相对,不含结冷胶的比较例1的药物缓释性不良,另外,不含海藻糖的比较例2含有凝集物,无法用作注射剂。
〔3〕制剂例4~8的制备
制剂例4
在容量瓶中装入50mg化合物A,添加0.2mL的50%海藻糖水溶液,用搅拌器及超声波处理进行搅拌分散后,添加0.8mL的1%脱酰基型结冷胶水溶液,再次进行搅拌分散,制备注射剂。
制剂例5
在容量瓶中装入50mg化合物A,添加0.2mL的25%海藻糖水溶液,用搅拌器及超声波处理进行搅拌分散后,添加0.8mL的1%脱酰基型结冷胶水溶液,再次进行搅拌分散,制备注射剂。
制剂例6
在容量瓶中装入50mg化合物A,添加0.1mL的50%海藻糖水溶液,用搅拌器及超声波处理进行搅拌分散后,添加0.9mL的1%脱酰基型结冷胶水溶液,再次进行搅拌分散,制备注射剂。
制剂例7
在容量瓶中装入50mg化合物A,添加0.1mL的50%海藻糖水溶液,用搅拌器及超声波处理进行搅拌分散后,添加0.6mL的1%脱酰基型结冷胶水溶液及0.3mL注射用水,再次进行搅拌分散,制备注射剂。
制剂例8
在容量瓶中装入50mg化合物A,添加0.1mL的50%海藻糖水溶液,用搅拌器及超声波处理进行搅拌分散后,添加0.4mL的1%脱酰基型结冷胶水溶液及0.5mL注射用水,再次进行搅拌分散,制备注射剂。
〔4〕制剂例4~8中得到的各注射剂的溶出试验
在装有50mL含有1%聚乙二醇单硬脂酸酯(MYS40)的10mM中性磷酸缓冲液(Dulbecco'sPBS)的玻璃试管中,分别添加0.02mL制剂例4~8中得到的各注射剂,于37℃缓慢振荡。在溶出试验开始1天后、3天后及7天后,回收0.18mL的溶出液,使用酶标仪,
由270nm吸光度计算出溶出液中的化合物A的浓度。需要说明的是,标准曲线使用了0.0008mg/mL、0.004mg/mL及0.02mg/mL的将化合物A溶解在含有1%MYS40的10mM中性磷酸缓冲液(Dulbecco'sPBS)中而得到的溶液。将它们的试验结果示于表2。
[表2]
由表2可知,制剂例4~8中,药剂(化合物A)均显示出良好的缓释化效果(药物释放率)。
〔5〕制剂例9及10的制备
制剂例9
在容量瓶中装入30mg西罗莫司,添加0.1mL的50%海藻糖水溶液,用搅拌器及超声波处理进行分散后,添加0.9mL的1%脱酰基型结冷胶水溶液,再次进行搅拌分散,得到注射剂。
制剂例10
在容量瓶中装入30mg西罗莫司,添加0.6mL的50%海藻糖水溶液,用搅拌器及超声波处理进行分散后,添加0.4mL的1%脱酰基型结冷胶水溶液,再次进行搅拌分散,得到注射剂。
〔6〕制剂例9及10中得到的各注射剂的溶出试验
在装有12mL含有0.1%十二烷基硫酸钠(SDS)的中性磷酸缓冲液的玻璃试管中,分别添加0.015mL制剂例9、10中得到的各注射剂,于37℃缓慢振荡。溶出试验开始1天后,回收10mL溶出液,使用UPLC计算出溶出液中的西罗莫司浓度。将它们的试验结果示于表3。
[表3]
由表3可知,制剂例9及10中,药剂(西罗莫司)显示出良好的缓释化效果(药物释放率)。
〔7〕制剂例11~13的制备
制剂例11
在经灭菌的容量瓶中装入0.3g化合物A,添加3.75mL经灭菌的20%海藻糖水溶液,用搅拌器及超声波处理进行搅拌后,添加9mL经灭菌的1%脱酰基型结冷胶水溶液,再次用搅拌器进行搅拌,进而用注射用水定容至15mL,制备注射剂。
制剂例12
在经灭菌的容量瓶中装入0.25g化合物A,添加0.5mL经灭菌的0.4%聚氧乙烯山梨糖醇酐单月桂酸酯(Tween20)水溶液,用搅拌器和超声波使其分散。进而添加0.8mL经灭菌的50%海藻糖水溶液,用搅拌器进行搅拌,然后,添加2mL经灭菌的1%脱酰基型结冷胶水溶液,再次用搅拌器进行搅拌,进而用注射用水定容至5mL,制备注射剂。
制剂例13
在经灭菌的容量瓶中装入1g西罗莫司,添加2mL经灭菌的20%海藻糖水溶液,用搅拌器及超声波处理进行搅拌后,添加3mL经灭菌的1%脱酰基型结冷胶水溶液,再次用搅拌器进行搅拌,进而用注射用水定容至5mL,制备注射剂。
〔8〕体内(invivo)的药物释放特性试验
使用26号(gage)的针,向日本白兔的玻璃体分别给予50μL制剂例11~13中得到的各注射剂。给予后随时间经过(4周后、12周后、24周后)从兔中采集玻璃体及脉络膜视网膜,使用LC-MS/MS测定药物浓度。将上述药物释放特性试验的结果示于表4~6。
[表4]
[表5]
[表6]
对于本发明的注射剂(制剂例11~13)而言,在注射至玻璃体后,在4周期间维持一定以上的脉络膜视网膜中药剂浓度,在给予4周后,在玻璃体中残存77%以上的药剂,即使在给予12周后,也在玻璃体中残存68%以上的药剂,因此,预计可长期持续药物缓释效果。另外,在制剂例11、12和制剂例13中含有的药物不同,因此,表明本发明的注射剂即使使用各种不同的药物,也可获得同样的缓释效果。
〔8〕制剂例11中得到的注射剂的贮库形成能力
向兔的玻璃体内注射给予制剂例11的注射剂,在4周后摘除眼球,用干冰将眼球冷冻,使用剃刀,从睫状体扁平部除去眼前段。进而使用摄子等在冷冻状态下将脉络膜视网膜与玻璃体分离,在玻璃体解冻后,拍摄玻璃体中的贮库。将其结果示于图1。需要说明的是,图1中的星号表示为了将玻璃体凝胶破碎而使用的珠(直径为3mm)。
如图1所示那样,在玻璃体中形成了贮库(在中央稍靠左侧观察到的白色状物),确认了本发明的注射剂与玻璃体液接触而形成贮库。
〔8〕制剂例14~19的制备
制剂例14
在容量瓶中装入50mg倍他米松,添加1mL的50%海藻糖水溶液,用搅拌器和超声波使其分散。添加3mL的1%脱酰基型结冷胶水溶液,再次用搅拌器进行搅拌,进而用注射用水定容至5mL,制备注射剂。
制剂例15~19
代替制剂例14的50mg倍他米松,使用50mg双氯芬酸、50mg吲哚美辛、50mg布林佐胺、50mg氮卓斯汀、50mg的IgG(来源于人血清),进行与制剂例14同样的操作,制备制剂例15~19的各注射剂。
将制剂例14~19的各注射剂的配合组成示于表7。
[表7]
药物(浓度) | 海藻糖的浓度 | 结冷胶的浓度 | |
制剂例14 | 倍他米松(1%) | 10% | 0.6% |
制剂例15 | 双氯芬酸(1%) | 10% | 0.6% |
制剂例16 | 吲哚美辛(1%) | 10% | 0.6% |
制剂例17 | 布林佐胺(1%) | 10% | 0.6% |
制剂例18 | 氮卓斯汀(1%) | 10% | 0.6% |
制剂例19 | IgG(1%) | 10% | 0.6% |
〔9〕贮库形成确认试验
在装有15mL含有1%聚乙二醇单硬脂酸酯(MYS40)的10mM中性磷酸缓冲液(Dulbecco'sPBS)的玻璃试管中,于37℃,分别添加0.020mL制剂例14~19的各注射剂。目视确认了在装有制剂例14~19的注射剂的各试管中均形成了白色的贮库。
〔10〕制剂例20~23的制备
制剂例20
在样品瓶中装入50mg倍他米松,添加0.05mL的50%海藻糖水溶液,用搅拌器和超声波使其分散。添加4mL的1%脱酰基型结冷胶水溶液,再次用搅拌器进行搅拌,变得均匀后,转移至容量瓶中,用注射用水定容至5mL,制备注射剂。需要说明的是,在制备中途发生固化时,适当加热至50℃。
制剂例21
使用玛瑙乳钵,将1.5g倍他米松分散在2mL的50%海藻糖水溶液中。添加0.15mL的1%脱酰基型结冷胶水溶液,用漩涡混合器(vortexmixer)或笔型混合器(pencilmixer)进行搅拌,变得均匀后,转移至容量瓶中,进而一边润洗一边添加2mL的50%海藻糖水溶液,用注射用水定容至5mL,制备注射剂。
制剂例22
使用玛瑙乳钵,将3g倍他米松分散在5mL的50%海藻糖水溶液中。添加1mL的1%脱酰基型结冷胶水溶液,用漩涡混合器或笔型混合器进行搅拌,变得均匀后,转移至容量瓶中,用注射用水定容至10mL,制备注射剂。
制剂例23
使用玛瑙乳钵将2g倍他米松分散在2mL的50%海藻糖水溶液中,进而添加0.5mL的1%脱酰基型结冷胶水溶液并进行混合。转移至容量瓶中,用笔型混合器进行搅拌,并进一步一边润洗一边添加2mL50%海藻糖水溶液,用注射用水定容至5mL,制备注射剂。
将制剂例20~23的各注射剂的配合组成示于表8。
[表8]
倍他米松的浓度 | 海藻糖的浓度 | 结冷胶的浓度 | |
制剂例20 | 1% | 0.5% | 0.8% |
制剂例21 | 30% | 40% | 0.03% |
制剂例22 | 30% | 25% | 0.1% |
制剂例23 | 40% | 40% | 0.1% |
〔11〕贮库形成确认试验
在装有15mL的Dulbecco'sPBS的玻璃试管中,于37℃分别添加0.020mL制剂例20~23的各注射剂。在装有制剂例20~23的注射剂的各试管中,均目视确认到形成了白色的贮库。
Claims (6)
1.一种注射剂,其含有药物、海藻糖和结冷胶。
2.如权利要求1所述的注射剂,其中,相对于所述注射剂的总体积,所述药物的含量为0.0001~50.00%(w/v),海藻糖的含量为0.1~50.0%(w/v),结冷胶的含量为0.01~3.00%(w/v)。
3.如权利要求1或2所述的注射剂,其中,所述注射剂是与磷酸缓冲液、体液或模拟体液接触而形成贮库的注射剂。
4.如权利要求1~3中任一项所述的注射剂,其中,所述注射剂用于玻璃体内给予。
5.如权利要求1~4中任一项所述的注射剂,其中,所述注射剂用于向脉络膜视网膜供给所述药物。
6.一种形成贮库的方法,包括下述步骤:使含有药物、海藻糖和结冷胶的液态组合物与体液、模拟体液或磷酸缓冲液接触。
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2014
- 2014-12-24 TW TW103145137A patent/TW201609145A/zh unknown
- 2014-12-25 KR KR1020167014611A patent/KR20160101905A/ko not_active Application Discontinuation
- 2014-12-25 EA EA201691132A patent/EA201691132A1/ru unknown
- 2014-12-25 CN CN201480065784.4A patent/CN105792849A/zh active Pending
- 2014-12-25 CA CA2933150A patent/CA2933150A1/en not_active Abandoned
- 2014-12-25 WO PCT/JP2014/084289 patent/WO2015099029A1/ja active Application Filing
- 2014-12-25 EP EP14874871.8A patent/EP3088003A4/en not_active Withdrawn
- 2014-12-25 SG SG11201605099YA patent/SG11201605099YA/en unknown
- 2014-12-25 GE GEAP201414194A patent/GEP20186930B/en unknown
- 2014-12-25 JP JP2014262257A patent/JP6423263B2/ja not_active Expired - Fee Related
-
2016
- 2016-06-23 US US15/190,855 patent/US20160303240A1/en not_active Abandoned
- 2016-06-24 PH PH12016501256A patent/PH12016501256A1/en unknown
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Also Published As
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EP3088003A4 (en) | 2017-08-02 |
WO2015099029A1 (ja) | 2015-07-02 |
CA2933150A1 (en) | 2015-07-02 |
EA201691132A1 (ru) | 2016-11-30 |
US20160303240A1 (en) | 2016-10-20 |
TW201609145A (zh) | 2016-03-16 |
JP2015143217A (ja) | 2015-08-06 |
KR20160101905A (ko) | 2016-08-26 |
PH12016501256A1 (en) | 2016-08-15 |
GEP20186930B (en) | 2018-12-10 |
SG11201605099YA (en) | 2016-07-28 |
JP6423263B2 (ja) | 2018-11-14 |
EP3088003A1 (en) | 2016-11-02 |
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