TW201707707A - 包含吲哚化合物之製劑及其製備方法 - Google Patents
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- TW201707707A TW201707707A TW105108958A TW105108958A TW201707707A TW 201707707 A TW201707707 A TW 201707707A TW 105108958 A TW105108958 A TW 105108958A TW 105108958 A TW105108958 A TW 105108958A TW 201707707 A TW201707707 A TW 201707707A
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Classifications
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- A—HUMAN NECESSITIES
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- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
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- A61K9/00—Medicinal preparations characterised by special physical form
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- A—HUMAN NECESSITIES
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- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
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- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/40—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with one nitrogen as the only ring hetero atom, e.g. sulpiride, succinimide, tolmetin, buflomedil
- A61K31/403—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with one nitrogen as the only ring hetero atom, e.g. sulpiride, succinimide, tolmetin, buflomedil condensed with carbocyclic rings, e.g. carbazole
- A61K31/404—Indoles, e.g. pindolol
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- A—HUMAN NECESSITIES
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- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/54—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with at least one nitrogen and one sulfur as the ring hetero atoms, e.g. sulthiame
- A61K31/541—Non-condensed thiazines containing further heterocyclic rings
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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Abstract
本發明係關於提供藉由改善吲哚化合物的溶解性而具有經改善的溶液中之安定性之醫藥製劑。包含吲哚化合物或其醫藥上可接受之衍生物、環糊精衍生物以及抗氧化劑之醫藥製劑係透過藉由形成為環糊精衍生物的包容錯合物來改善吲哚化合物的溶液中之溶解性及安定性而使吲哚化合物-其具有低水溶解性且在水中不安定-能夠進行非經口投予。該醫藥製劑可較佳地用於抑制細胞壞死及預防局部缺血/再灌流損傷。特定而言,藉由預處理,可在根本上預防或治療由經皮冠狀動脈介入(percutaneous coronary intervention,PCI)手術所造成之致命性再灌流心臟損傷。
Description
本發明係關於包含吲哚化合物或其醫藥上可接受之衍生物以及環糊精衍生物之新穎的製劑、以及其製備方法。
壞死-其係在病理情況下細胞死亡之主要機制-係缺血及再灌流損傷之臨床上主要成因,且會引起非常重要的病理現象,諸如心肌梗塞及中風。對心肌梗塞患者所執行之經皮冠狀動脈介入(percutaneous coronary intervention,PCI)可能會誘發致命性再灌流損傷,從而使心肌梗塞位置不發生癒合,其會導致死亡率增加。雖然對於開發用於減少因PCI手術後之再灌流損傷而殘留下梗塞位置之藥劑係有迫切的需求,但直至目前為止仍未開發出用於在根本上預防該種心肌組織的局部缺血/再灌流損傷之藥劑。
韓國專利申請公開案第10-2012-0013266號係揭示吲哚及吲唑衍生物,其可作為具有與習知抗氧化劑不同的作用機制之強力抗氧化劑-即,具有去除ROS/RNS
(活性氧類/活性氮類(Reactive Oxygen Species/Reactive Nitrogen Species))之活性且專一性地作用於細胞之粒線體,而有效地預防在病理情況下所誘發之細胞壞死。如此,透過可藉由專一性地作用於粒線體而強烈抑制細胞壞死且於各種器官對局部缺血/再灌流損傷具有預防功效之吲哚化合物的預處理,可在根本上預防或治療PCI手術所造成之致命性再灌流心臟損傷。
就患者的迫切性及便利性而言,該種藥劑必須開發成注射劑。然而,由於吲哚化合物不僅在水溶液中具有5μg/ml或更低的低溶解性,且其在水溶液中並不安定,因而在將其開發成注射劑上係存在有問題。因此,有需要藉由克服吲哚化合物之該種問題而開發出可以注射劑之形式進行投予之安定的調配物。
本發明之目的為在提供包含可有效地預防在病理情況下所誘發之細胞壞死之吲哚化合物作為活性成分之組成物的同時,提供在儲存期間無論溫度變化皆維持澄清度,並解決在水溶液相中之低溶解性及安定性的問題之醫藥製劑。
為了達成上述目的,本發明係提供一種醫藥製劑,其係包含吲哚化合物或其醫藥上可接受之衍生物、環糊精衍生物以及抗氧化劑。
此處,該吲哚化合物較佳為下式(1)之[5-(1,1-二側氧基-1 λ6-硫代嗎啉-4-基甲基)-2-苯基-1H-吲哚-7-基]-(四氫哌喃-4-基)-胺)。
此外,在本發明中,該環糊精衍生物較佳為β-環糊精,特別是,羥丙基β-環糊精(HP-β-CD),且較佳係以0.1至30重量%之量包含在該製劑中。
再者,在根據本發明之醫藥製劑中,該抗氧化劑係例如但不限於硫代甘油或L-半胱胺酸鹽酸鹽,且較佳係以0.1至2.0重量%之量包含在該製劑中。
根據本發明之醫藥製劑可進一步包含用以改善溶解性之丙二醇以及用以改善安定性之螯合劑。丙二醇較佳係以0.1至1.0重量%之量包含在該製劑中,而該螯合劑較佳為依地酸鹽(edetate)(乙二胺三醋酸)且以0.001至0.01重量%之量包含在該製劑中。
該種本發明之醫藥製劑可用於抑制細胞壞死及預防局部缺血/再灌流損傷,適合非經口投予,且包括液體或冷凍乾燥調配物。
以下,對本發明更詳細地進行說明。
在本發明中,係提供具有經改善的溶液中之安定性之醫藥製劑,其中,吲哚化合物的溶解性係藉由
使在水溶液中具有5μg/ml或更低的溶解性之吲哚化合物形成為環糊精衍生物的包容錯合物而獲得改善。
環糊精係結構上由α(1-4)醣苷鍵聯所連結之6、7或8個單元的D-葡萄哌喃糖基所構成,且其分別稱為α(alpha)-環糊精、β(beta)-環糊精及γ(gamma)-環糊精。該等係寡糖之中最安定的三維結構。環糊精衍生物係理解為環糊精或其混合物,且在葡萄糖的2-、3-及6-位之某些或所有氫原子係經另一官能基(諸如二羥烷基、醣殘基、羥烷基、磺酸酯基、磺烷基、烷基、烷醯基、乙醯基以及苯甲醯基)取代。
本發明中所使用之環糊精或其衍生物係市面上可取得或可根據此領域中已知的方法予以合成。環糊精或其衍生物之實例包括但不限於天然環糊精(α、β或γ)、羥丙基環糊精、羧甲基環糊精、磺丁基環糊精、胺基環糊精、二甲基環糊精、環糊精磷酸酯、羥乙基環糊精、乙醯基-環糊精、乙基環糊精、三甲基環糊精、羧乙基環糊精、葡萄糖基環糊精、6-O-α-麥芽糖基環糊精、丁基-環糊精、硫酸環糊精、N,N-二乙基胺基乙基環糊精、第三丁基矽烷基環糊精、矽烷基[(6-O-第三丁基二甲基)-2,3,-二-O-乙醯基)-環糊精、琥珀醯基-(2-羥丙基)-環糊精、琥珀醯基-環糊精、磺丙基-環糊精及聚環糊精。在本發明之特定具體例中,環糊精包括羥丙基α-環糊精、羥丙基β-環糊精、磺丁基乙基-β-環糊精或其混合物。
同時,在根據本發明之醫藥製劑中,為了
改善溶液狀態中之安定性及預防變色,係需要抗氧化劑。可取得之抗氧化劑之實例包括但不限於視黃醇、生育醇、抗壞血酸鈉、抗壞血酸、亞硫酸鹽化合物、L-半胱胺酸、硫代甘油、硫代二丙酸、硫代乳酸或單硫代甘油。具體而言,在使用半胱胺酸鹽酸鹽或硫代甘油之情況,可藉由抑制吲哚化合物之氧化反應而在儲存期間維持安定性。抗氧化劑(諸如半胱胺酸鹽酸鹽或硫代甘油)可以0.1至2重量%之量使用。
在本發明之較佳實施例中,必要時,根據本發明之醫藥製劑可進一步包含pH控制劑,諸如磷酸鹽緩衝溶液或檸檬酸/氫氧化鈉緩衝溶液,以便將pH值調節至3.0與4.0之間。可取得之磷酸鹽可呈鈉鹽或鉀鹽、或酸酐或水合物之形式,而檸檬酸亦以酸酐或水合物之形式使用。舉例而言,可使用磷酸二氫鉀及磷酸一氫鈉之磷酸鹽緩衝溶液、磷酸二氫鈉-檸檬酸緩衝溶液、以及磷酸二氫鉀及氫氧化鈉之磷酸鹽緩衝溶液。pH控制劑可以將根據本發明之醫藥製劑的pH值調節至3.0至4.0所需之量使用。
作為較佳實施例,本發明之醫藥製劑可進一步包含用以改善溶解性之丙二醇以及用以改善安定性之螯合劑(諸如依地酸鹽)。此外,使用抗氧化劑及氮氣可克服氧化反應所引起之醫藥不安定性。螯合劑(諸如依地酸鹽)可以0.001至0.01重量%之量使用,而丙二醇可以0.1至1.0重量%之量使用。可在根據本發明之系統中使用該等之任一者。
本發明中所使用之吲哚化合物或其衍生物可根據韓國專利申請公開案第10-2012-0013266號中所揭示之方法予以合成。可取得之吲哚化合物之衍生物包括鹽類,諸如鹽酸鹽、硫酸鹽、甲磺酸鹽、蘋果酸鹽等。
作為根據本發明之醫藥製劑之較佳具體例,可注射之組成物係包含1至20重量%的吲哚化合物、0.1至30重量%的羥丙基β-環糊精、0.1至2.0重量%的抗氧化劑、0.1至1.0重量%的丙二醇以及0.001至0.01重量%的依地酸鹽。此處,抗氧化劑較佳為硫代甘油或L-半胱胺酸鹽酸鹽。
作為根據本發明之醫藥製劑之較佳實施例,可注射之組成物之製備方法係包含下列步驟:將0.1至30重量%的環糊精及0.1至1.0重量%的丙二醇溶解於鹽酸溶液中;添加1至20重量%的吲哚化合物並進行攪拌;添加0.1至2.0重量%的抗氧化劑及0.001至0.01重量%的依地酸鹽;以及將pH值調節至約3.0至4.0。
此外,根據本發明之醫藥製劑可用於非經口投予,且包括液體或冷凍乾燥調配物。劑型可為在油或水性介質中之溶液、懸浮液或乳液,且可包含習知的分散劑、懸浮劑或安定劑。再者,舉例而言,該醫藥製劑可呈乾燥粉末形式,其係藉由溶解於不含熱原之無菌水中而使用。
根據本發明之醫藥製劑係透過藉由形成為
環糊精衍生物的包容錯合物來改善吲哚化合物的溶液中之溶解性及安定性而使吲哚化合物-其具有低水溶解性且在水中不安定-能夠進行非經口投予。根據本發明之醫藥製劑可較佳地用於抑制細胞壞死及預防局部缺血/再灌流損傷。具體而言,藉由預處理,可在根本上預防或治療由經皮冠狀動脈介入(PCI)手術所造成之致命性再灌流心臟損傷。
第1圖及第2圖係分別為DSC及XRD圖表,其係顯示當根據實施例4製備注射用溶液製劑時,是否形成吲哚化合物/環糊精的包容錯合物。
以下,利用下列示例更詳細說明本發明。然而,必須瞭解本發明之保護範疇並不限於該等示例。
如表1所示,對羥丙基β-環糊精及吲哚化合物在注射用溶液調配物中之溶解性進行試驗。所有製程步驟皆在氮吹掃下施行。
(a)將羥丙基β-環糊精溶解於0.1N鹽酸中後,對其添加1體積%的丙二醇並進行溶解,接著對其添加吲哚化合物並進行溶解約20分鐘。
(b)在燒杯中將0.9體積%的無水檸檬酸添加至9體積%
的1N氫氧化鈉溶液中並進行溶解約10分鐘,接著對其添加注射用水。
接著,將溶液(b)與溶液(a)進行混合,對其添加1體積%的單硫代甘油及0.01體積%的依地酸二鈉並進行溶解。使所獲得之溶液依序通過1μm PES過濾器及0.5/0.2μm雙層過濾器,並收集所濾出之溶液。溶液的pH值為約3.0至3.5。最後,為了進行HPLC分析,透過無菌0.2μm PVDF過濾器將溶液過濾至容器中。
目標濃度:20mg/ml
管柱:Capcell pak UG120(4.6×150mm,5μm,Shiseido)
管柱溫度:40℃
移動相A:乙腈/水/三氟醋酸=30/70/0.1(體積/體積/體積)
移動相B:乙腈/水/三氟醋酸=80/20/0.1(體積/體積/體積)
流動速率:1ml/分鐘
檢測器:紫外吸收分光光度計(波長:254nm)
注入量:10ml
如表3可見,證實在水溶液具有0.10mg/ml或更低的溶解性之吲哚化合物的溶解性係藉由形成示例1至3之吲哚化合物/羥丙基β-環糊精的包容錯合物而急遽增加。
以表4之組成(以22g為基準)製備包含43.3mg的吲哚化合物之溶液調配物中之注射用製劑。所有製程步驟皆在氮吹掃下施行。
(a)將羥丙基β-環糊精溶解於0.1N鹽酸中,接著對其
添加吲哚化合物並進行溶解約20分鐘。
(b)在燒杯中將無水檸檬酸添加至1N氫氧化鈉溶液中並進行溶解約10分鐘,接著對其添加注射用水。
接著,將溶液(b)與溶液(a)進行混合,對其添加單硫代甘油並進行溶解。溶液的pH值為約3.0至3.5。
第1圖及第2圖係分別為DSC及XRD圖表,其係顯示當根據示例4製備注射用溶液製劑時,是否形成吲哚化合物/環糊精的包容錯合物。
除了使用2重量%、1重量%及0.1重量%的L-半胱胺酸鹽酸鹽代替單硫代甘油以外(參見表5),以與示例4中相
同的組成,並藉由與示例4中相同的製程,製備溶液調配物中之注射用製劑。
除了使用1.0重量%或0.1重量%的丙二醇及0.01重量%或0.001重量%的依地酸二鈉以外(參見表6),以與示例4中相同的組成,並藉由與示例4中相同的製程,製備溶液調配物中之注射用製劑。此時,將丙二醇添加至溶液(b)中,並在將溶液(a)及(b)進行混合時添加依地酸二鈉。
除了額外包含1重量%的丙二醇以外,以與示例4中相同的組成(參見表7),並藉由與示例4中相同的製程,製備溶液調配物中之注射用製劑。
除了額外包含1重量%的丙二醇以外,以與實施例7中相同的組成(參見表8),並藉由與實施例7中相同的製程,製備溶液調配物中之注射用製劑。
以表9之組成製備溶液調配物中之注射用製劑。
製備包含表1之組成之吲哚化合物溶液注射劑。在此時,不施行氮吹掃。
由表11,可知所有製劑於加速(40℃)及75%濕度之條件下皆不安定。在不包含抗氧化劑之比較例1至4之製劑中,於加速、室溫及冷藏之所有條件下皆觀察到
變色及沉澱。
其中包含0.1重量%的抗氧化劑(單硫代甘油)之示例6之製劑僅於冷藏條件下呈安定。同時,示例4及5之製劑-其分別包含2.0重量%及1.0重量%的單硫代甘油-係於室溫及冷藏條件下皆顯示出安定性。該等結果係表明隨著抗氧化劑的濃度越高,於室溫之安定性係增加。示例7及8之製劑-其分別包含2.0重量%及1.0重量%的L-半胱胺酸鹽酸鹽作為抗氧化劑-亦於室溫及冷藏條件下皆顯示出安定性,而其中包含0.1重量%者之示例9之製劑僅於冷藏條件下呈安定。亦即,可知抗氧化劑的添加係在製劑的安定性上扮演重要的角色。
此外,如示例10、11、13及14可見,包含1.0重量%或0.1重量%的丙二醇或0.01重量%或0.001重量%的依地酸鹽之製劑係僅在包含1.0重量%或2.0重量%的單硫代甘油時,於室溫及冷藏條件下皆呈安定。包含0.1重量%的單硫代甘油之示例12之製劑係如同示例6般僅於冷藏條件下顯示出安定性。同樣地,在包含1.0重量%的丙二醇之製劑之情況(示例15至20),包含0.1重量%的單硫代甘油及0.1重量%的L-半胱胺酸鹽酸鹽之製劑(示例17及20)僅於冷藏條件下顯示出安定性,而包含1重量%及2重量%的單硫代甘油或L-半胱胺酸鹽酸鹽之製劑(示例15、16、18及19)則於室溫及冷藏條件下皆顯示出安定性。
Claims (12)
- 一種醫藥製劑,係包含吲哚化合物或其醫藥上可接受之衍生物、環糊精衍生物以及抗氧化劑。
- 如申請專利範圍第1項所述之醫藥製劑,其中,該吲哚化合物為下式(1)之化合物:
- 如申請專利範圍第1項所述之醫藥製劑,其中,該環糊精衍生物為β-環糊精或其衍生物。
- 如申請專利範圍第1項所述之醫藥製劑,係包含0.1至30重量%的該環糊精衍生物。
- 如申請專利範圍第1項所述之醫藥製劑,其中,該抗氧化劑為硫代甘油或L-半胱胺酸鹽酸鹽。
- 如申請專利範圍第1項所述之醫藥製劑,係包含0.1至2.0重量%的該抗氧化劑。
- 如申請專利範圍第1項所述之醫藥製劑,係進一步包含0.1至1.0重量%的丙二醇。
- 如申請專利範圍第1項所述之醫藥製劑,係進一步包含0.001至0.01重量%的依地酸鹽(edetate)。
- 如申請專利範圍第1項所述之醫藥製劑,係包含1至20重量%的吲哚化合物、0.1至30重量%的羥丙基β-環糊精、0.1至2.0重量%的硫代甘油或L-半胱胺酸鹽 酸鹽、0.1至1.0重量%的丙二醇以及0.001至0.01重量%的依地酸鹽。
- 如申請專利範圍第1項所述之醫藥製劑,係用於抑制細胞壞死及預防局部缺血/再灌流損傷。
- 如申請專利範圍第1項所述之醫藥製劑,係用於非經口投予。
- 如申請專利範圍第1項所述之醫藥製劑,係液體或冷凍乾燥調配物。
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| EP4324829A4 (en) * | 2021-04-12 | 2025-04-23 | MitoImmune Therapeutics Inc. | 5-[(1,1-DIOXIDO-4-THIOMORPHOLINYL)METHYL]-2-PHENYL-N-(TETRAHYDRO-2H-PYRAN-4-YL)-1H-INDOL-7-AMINE SULFATE AND A NEW CRYSTALLINE FORM THEREOF |
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| US20080269347A1 (en) * | 2006-09-28 | 2008-10-30 | Azopharma, Inc. | Epinephrine formulations |
| RU2477282C2 (ru) * | 2007-08-17 | 2013-03-10 | Эл Джи Лайф Сайенсиз Лтд. | Соединения индола в качестве ингибиторов клеточного некроза |
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| WO2016153304A1 (en) | 2016-09-29 |
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