TW201538179A - 貼附製劑 - Google Patents
貼附製劑 Download PDFInfo
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- TW201538179A TW201538179A TW104107119A TW104107119A TW201538179A TW 201538179 A TW201538179 A TW 201538179A TW 104107119 A TW104107119 A TW 104107119A TW 104107119 A TW104107119 A TW 104107119A TW 201538179 A TW201538179 A TW 201538179A
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Classifications
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- 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
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/435—Heterocyclic 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
- A61K31/44—Non condensed pyridines; Hydrogenated derivatives thereof
- A61K31/445—Non condensed piperidines, e.g. piperocaine
-
- 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
- A61K9/70—Web, sheet or filament bases ; Films; Fibres of the matrix type containing drug
- A61K9/7023—Transdermal patches and similar drug-containing composite devices, e.g. cataplasms
- A61K9/703—Transdermal patches and similar drug-containing composite devices, e.g. cataplasms characterised by shape or structure; Details concerning release liner or backing; Refillable patches; User-activated patches
- A61K9/7038—Transdermal patches of the drug-in-adhesive type, i.e. comprising drug in the skin-adhesive layer
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Abstract
提供一種貼附製劑,其可歷經長期間且安定地持續投予藥物(尤其是全身作用性之藥物)且對被附著體賦予良好密著性,且係一種積層構造之貼附製劑,其自皮膚貼著側依序包含:含有摻合藥物的黏著膏體及貼附劑支撐體的貼附劑層、以及覆蓋層,該貼附製劑之特徵係於該貼附劑層之貼附劑支撐體與覆蓋層之間設置緩衝材料,覆蓋層係大於貼附劑層的邊緣部而覆蓋的大小,又於覆蓋層與緩衝材料之間進一步設置遮蔽薄膜。
Description
本發明係關於具備對被附著體賦予良好密著性的積層支撐體的貼附劑。
近年來,摻合妥布特羅(tulobuterol)(支氣管性氣喘治療劑)、芬太尼(fentanyl)(持續性癌性疼痛治療劑)、卡巴拉汀(rivastigmine)(阿茲海默型失智症治療劑)、或奥昔布寧(oxybutynin)(膀胱過動症(overactive bladder)治療劑)等之所謂的全身作用性之藥物的貼附劑已被販售,且已用於醫療現場。
摻合此等全身作用性之藥物的貼附劑因具有所謂可長期間維持一定之藥物血中濃度的特徵,開發有從可1日1次投予者至可以1週投予之長時間者。
此等貼附劑由藥物與基劑成分之溶解性、自基劑成分之藥物釋放性、或長期投予中的安定黏著性等之觀點,大部分係作為所謂的帶狀製劑(tape preparation)而供給的情形,該帶狀製劑主要以丙烯酸系黏著劑、矽酮系黏著劑、及苯乙烯‧異戊二烯‧苯乙烯嵌段共聚物等之基劑作為基底。
為了藥物之歷經長期的安定投予,歷來,已由下列面向進行檢討:貼附劑中的藥物摻合量、結晶形
態、藥物與基劑成分之作用等、藥物與貼附劑基劑之相互作用。
另一方面,亦見到以藉由強化貼附劑本身之黏著力,極力防止自皮膚之剝離,而維持安定的藥物血中濃度作為目標的嘗試,但對於皮膚的可動部分之黏著力不足,又過度強化黏著力的情形,因亦被指出自皮膚面剝離時伴隨疼痛,成為皮膚刺激性之原因的可能性,而僅單純地強化膏體部分之黏著力,係難以維持貼附期間中藥物之安定的經皮吸收。
又,為了改善貼附劑對皮膚之貼附性,已提案將貼附劑以覆蓋片固定的方法(專利文獻1)、或者將覆蓋片與貼附劑一體化的儲存器(reservoir)型貼附製劑(專利文獻2)。
然而,此等具備覆蓋片的貼附製劑雖覆蓋片本身藉由其強力黏著力而不會自皮膚貼附部位剝離及脫落,但貼附劑部分、或者儲存器部分無法追隨貼附部位的活動,因此有皮膚與貼附劑無法壓合而無法安定的釋放藥物的情形。
尤其,對於摻合妥布特羅、芬太尼等之全身作用性之藥物的貼附劑,無法安定地維持藥物血中濃度的情形,無法表現確實的藥效。因此,包含覆蓋片部分的貼附製劑全體有必要常與皮膚貼附部位密合,但現狀係滿足此等要求的貼附劑尚未出現。
專利文獻1 日本特開平11-343232號公報
專利文獻2 國際公開WO2009/119673號
據此,本發明為了解決歷來有關之問題,以提供可歷經長期間而安定地持續投予藥物、尤其是全身作用性之藥物的貼附製劑為課題。
為了解決該課題,本發明者不斷專心研究的結果,發現可提供一種貼附製劑,該貼附製劑係一種積層構造之貼附製劑,自皮膚貼著側依序包含:含有摻合藥物的黏著膏體及貼附劑支撐體的貼附劑層、以及覆蓋層,藉由作成於貼附劑支撐體與覆蓋層之間設置緩衝材料的貼附製劑,而提升皮膚與黏著膏體之壓合性、對由於運動等的皮膚活動維持一定的壓力而使皮膚與黏著膏體壓合、可安定的釋放藥物,遂而完成本發明。
於是,本發明具體包含以下之基本態樣。
(1)一種貼附製劑,其係一種積層構造之貼附製劑,自皮膚貼著側依序包含:含有摻合藥物的黏著膏體及貼附劑支撐體所構成的貼附劑層、以及覆蓋層,其特徵為於前述貼附劑層之貼附劑支撐體與覆蓋層之間設置緩衝材料,覆蓋層為大於貼附劑層之邊緣部而覆蓋的大小。
更具體而言,本發明係:(2)如上述(1)記載之貼附製劑,其中於覆蓋層與緩衝材料之間進一步設置遮蔽薄膜;(3)如上述(1)或(2)記載之貼附劑,其中緩衝材料為不織布;(4)如上述(2)記載之貼附製劑,其中遮蔽薄膜為聚對苯二甲酸乙二酯(PET)薄膜;(5)如上述(1)至(4)中任一項記載之貼附製劑,其中覆蓋層之大小係相對於貼附劑層之平面面積為150~250%之大小。
本發明之貼附製劑係一種積層構造之貼附製劑,包含:含有摻合藥物的黏著膏體及貼附劑支撐體的貼附劑層、以及覆蓋層,尤其於貼附劑支撐體與覆蓋層之間設置緩衝材料的點上具有特徵。
藉由設置該緩衝材料,由覆蓋層所致的皮膚貼附部位與黏著膏體(貼附劑層)之壓合作用被增強,對由運動等所致的皮膚動作亦維持一定的壓力而將黏著膏體壓合於皮膚貼附部位,安定的藥物釋放成為可能。
據此,尤其作為摻合全身作用性之藥物的貼附劑,具有所謂可長期間維持一定之藥物血中濃度的優點。
1‧‧‧貼附製劑
2‧‧‧覆蓋層
3‧‧‧貼附劑層
4‧‧‧覆蓋支撐體
5‧‧‧覆蓋黏著劑
6‧‧‧緩衝材料
7‧‧‧貼附劑支撐體
8‧‧‧黏著膏體
9‧‧‧剝離襯墊
11‧‧‧貼附製劑
12‧‧‧覆蓋層
13‧‧‧貼附劑層
14‧‧‧覆蓋支撐體
15‧‧‧覆蓋黏著劑
16‧‧‧遮蔽薄膜
17‧‧‧緩衝材料
18‧‧‧貼附劑支撐體
19‧‧‧黏著膏體
20‧‧‧剝離襯墊
第1圖基於本發明之貼附製劑之第一實施形態的示意剖面圖。
第2圖基於本發明之貼附製劑之第二實施形態的示意剖面圖。
第3圖呈示使用本發明之貼附製劑及比較例之貼附製劑之試驗例1-(1)之結果的圖表。
第4圖呈示使用本發明之貼附製劑及比較例之貼附製劑之試驗例1-(2)-A之結果的圖表。
第5圖呈示使用本發明之貼附製劑及比較例之貼附製劑之試驗例1-(2)-B之結果的圖表。
第6圖呈示使用本發明之貼附製劑及比較例之貼附製劑之試驗例1-(3)之結果的圖表。
本發明係如上述為一種貼附製劑,其係一種積層構造之貼附製劑,自皮膚貼著側依序包含:含有摻合藥物的黏著膏體及貼附劑支撐體的貼附劑層、以及覆蓋層,其特徵為於前述貼附劑層之貼附劑支撐體與覆蓋層之間設置緩衝材料,覆蓋層係超過貼附劑層之邊緣部而覆蓋的大小。
以下,基於圖式,進一步詳細說明本發明所提供的貼附製劑。
第1圖係基於本發明之貼附製劑之第一實施形態的示意剖面圖。
如第1圖所示,本發明之貼附製劑1係一種積層構造之貼附製劑,自皮膚貼著側依序包含:含有摻合藥物的黏著膏體8及貼附劑支撐體7的貼附劑層3、以及覆
蓋層2,其中於貼附劑層3之貼附劑支撐體7與覆蓋層2之間設置緩衝材料6,覆蓋層2係以超過包含緩衝材料6之貼附劑層3之邊緣部而覆蓋的大小所構成。
即,具體而言,該積層構造具有:含有覆蓋支撐體4及覆蓋黏著劑5的覆蓋層2、及含有貼附劑支撐體7及黏著膏體8的貼附劑層3,而於貼附劑層3之貼附劑支撐體7與覆蓋層2之覆蓋黏著劑5之間設置緩衝材料6,進一步具備剝離襯墊(release liner)9,該剝離襯墊9係可剝離地附著於黏著膏體8而被覆此等層。
對於本發明之貼附製劑1,覆蓋層2之面積係較貼附劑層3之面積更廣,使覆蓋黏著劑5殘留於貼附劑層3之周圍,而積層覆蓋層2與貼附劑層3。
此情形之覆蓋層2之大小(面積),相對於貼附劑層3之平面面積為150~250%之大小較佳。
低於150%時,則對皮膚貼附部位的貼著力不足,又超過250%時,則覆蓋層之對皮膚的貼著部位變大,而為不佳。
例如,如由後述實施例可判明,本發明之貼附製劑為61mm×61mm之矩形的情形,於其4片之周圍若具有5~15mm左右的寬度的大小(例如,71mm×71mm)即可。
又,於本發明之貼附製劑,緩衝材料6與貼附劑支撐體7可各別作為各別的本體而構成,亦可如後述的積層支撐體,將緩衝材料6與貼附劑支撐體7作為一體而構成。貼附劑支撐體7與緩衝材料6之接合方法可為乾燥積層法亦可為熱積層法,但乾燥積層法為較佳。
於第2圖呈示基於本發明之貼附製劑之第二實施形態的示意剖面圖。
如第2圖所示,本發明之貼附製劑11係一種積層構造之貼附製劑,自皮膚貼著側依序包含:含有摻合藥物的黏著膏體19及貼附劑支撐體18的貼附劑層13、以及覆蓋層12,其中於貼附劑層13之貼附劑支撐體18與覆蓋層12之間設置緩衝材料17,以及進一步設置遮蔽薄膜16,覆蓋層12係以超過包含緩衝材料17及遮蔽薄膜16之貼附劑層13之邊緣部而覆蓋的大小所構成。
具體而言,基於此第二實施形態的貼附製劑11,該積層構造具有:含有覆蓋支撐體14及覆蓋黏著劑15的覆蓋層12、及含有貼附劑支撐體18及黏著膏體19的貼附劑層13,而於貼附劑層13之貼附劑支撐體18與覆蓋層12之覆蓋黏著劑15之間設置緩衝材料17,以及進一步設置遮蔽薄膜16,更具備可剝離地附著於黏著膏體19而覆蓋此等層的剝離襯墊20。
對於此第二實施態樣之貼附製劑,覆蓋層12之面積係較貼附劑層13之面積更廣,使覆蓋黏著劑15殘留於貼附劑層13之周圍,而使覆蓋層12與黏著劑層13介隔緩衝材料17、以及遮蔽薄膜16而積層。
此情形之覆蓋層12之大小(面積)係與第一實施態樣同樣地,相對於貼附劑層13之平面面積,較佳為150~250%之大小。
又,於此第二實施態樣之貼附製劑,緩衝材料17、遮蔽薄膜16及貼附劑支撐體18係可各自作成各別的本
體而構成,亦可如後述之積層支撐體,將緩衝材料17、遮蔽薄膜16與貼附劑支撐體18之三者作為一體而構成。緩衝材料17、遮蔽薄膜16、及貼附劑支撐體18之接合方法可為乾燥積層法亦可為熱積層法,但乾燥積層法為較佳。
對於本發明之貼附製劑,於構成貼附劑層的黏著膏體中添加藥物。
可添加的藥物並未特別限定,可經皮吸收的藥物為較佳。就此類藥物而言,例如,可列舉局部麻醉劑(鹽酸布比卡因(bupivacaine)、鹽酸甲哌卡因(mepivacaine)等)、抗癲癇藥(丙戊酸鈉等)、鎮痛劑(鹽酸嗎啡、檸檬酸芬太尼、鹽酸丁基原啡因(buprenorphine)等)、解熱鎮痛劑(斯爾匹林(sulpyrine)、安替比林(antipyrine)、乙醯胺酚(acetaminophen)等)、抗精神病藥(鹽酸氯普麻(chlorpromazine)、鹽酸左美丙嗪(levomepromazine)、鹽酸氯卡帕明(clocapramine)等)、憂鬱症治療藥(鹽酸伊米胺(imipramine)、鹽酸妥唑酮(trazodone)、順丁烯二酸氟伏沙明(fluvoxamine)等)、抗失智症藥(多奈派齊(donepezil)、卡巴拉汀、加蘭他敏(galanthamine)溴化氫酸鹽、鹽酸美金剛胺(memantine)等)、抗焦慮藥(二氮平(diazepam)、阿普唑倫(alprazolam)、檸檬酸坦度螺酮(tandospirone)等)、精神安定劑(鹽酸羥嗪(hydroxyzine)等)、腦機能賦活藥(鹽酸泰必利(tiapride)、酒石酸普羅瑞林(protirelin)等)、腦循環改善藥(異山梨酯(isosorbide)、己酮可可鹼(pentoxifylline)、鹽酸法舒地
爾(fasudil)等)、帕金森氏症治療劑(鹽酸苄絲肼(benserazide)、鹽酸金剛烷胺(amantadine)、鹽酸他利克索(talipexole)等)、肌肉鬆弛劑(鹽酸乙哌立松(eperisone)、鹽酸替扎尼定(tizanidine)、鹽酸妥配頌(tolperisone)等)、消化性潰瘍治療藥(溴化丁基東莨菪碱(butylscopolammonium bromide)、鹽酸哌侖西平(pirenzepine)、溴化替米派錠(timepidium bromide)等)、抗組織胺藥(順丁烯二酸氯菲安明(chlorpheniramine)、鹽酸普敏太定(promethazine)、鹽酸西替利嗪(cetirizine)等)、化學傳達物質游離抑制藥(反丁烯二酸依美斯汀(emedastine)、甲磺司特(splatast tosylate)、鹽酸依匹那丁(epinastine)等)、心臟病治療藥(胺茶鹼(aminophylline)、鹽酸迪太贊(diltiazem)、尼可地爾(nicorandil)、鹽酸普潘奈(propranolol)、鹽酸異丙腎上腺素(isoprenaline)、磷酸二丙吡胺(disopyramide)、鹽酸普魯卡因醯胺(procainamide)等)、高血壓治療藥(卡托普利(captopril)、順丁烯二酸依那拉普利(enalapril)、鹽酸氨磺洛爾(amosulalol)、鹽酸哌唑嗪(prazosin)、烏拉地爾(urapidil)、鹽酸可尼丁(clonidine)等)、血管擴張藥(鹽酸托拉佐林(tolazoline)等)、血管收縮藥(甲基硫酸阿美銨(amezinium)、鹽酸依替福林(etilefrine)、鹽酸脫羥腎上腺素(phenylephrine)、鹽酸米多君(midodrine)等)、高脂血症治療藥(普伐他汀(pravastatin)鈉、氟伐他汀(fluvastatin)鈉、西立伐他汀(cerivastatin)鈉等)、鎮咳‧去痰藥(溴化氫酸右美沙芬(dextromethorphan)、鹽酸福米
諾苯(fominoben)、醯半胱胺酸(acetylcysteine)等)、氣喘治療藥(鹽酸克侖特羅(clenbuterol)、溴化氫酸非諾特羅(fenoterol)、鹽酸丙卡特羅(procaterol)等)、H2阻斷藥(鹽酸雷尼得定(ranitidine)、鹽酸羅沙替丁(roxatidine)乙酸鹽等)、質子幫浦抑制劑(proton pump inhibitor)(奧美拉唑(omeprazole)、蘭索拉唑(lansoprazole)、雷貝拉唑(rabeprazole)等)、止吐劑(鹽酸格拉司瓊(granisetron)、鹽酸阿扎司瓊(azasetron)、鹽酸昂丹司瓊(ondansetron)、鹽酸雷莫司瓊(ramosetron)等)、非類固醇性抗發炎劑(洛索洛芬(loxoprofen)鈉、氟比洛芬(flurbiprofen)、雙氯芬酸(diclofenac)鈉、鹽酸泰拉邁得(tiaramide)等)、抗風濕劑(布西拉明(bucillamine)、青黴胺(penicillamine)等)、泌尿器官疾病用藥(鹽酸奥昔布寧、鹽酸坦舒羅森(tamsulosin)、鹽酸普比威林(propiverine)等)、β阻斷藥(反丁烯二酸畢索洛爾(bisoprolol)、鹽酸倍他洛爾(betaxolol)等)。
其摻合量依藥物而異,但相對於黏著膏體全體之重量,係5~30重量%,較佳為5~20重量%,更佳為10~20重量%。
黏著膏體係除了藥物之外,可含有基劑等之其他成分。
就摻合於黏著膏體的基劑而言,較佳使用橡膠系高分子、丙烯酸系高分子、或者矽酮系高分子。
就橡膠系高分子而言,可列舉苯乙烯-異戊二烯-苯乙烯嵌段共聚物(以下,縮寫為SIS)、異戊二烯、聚異丁
烯(以下,縮寫為PIB)、苯乙烯-丁二烯-苯乙烯嵌段共聚物(以下,縮寫為SBS)、苯乙烯-丁二烯橡膠(以下,縮寫為SBR)等。
就丙烯酸系高分子而言,只要為至少含有一種丙烯酸2-乙基己酯、丙烯酸甲酯、丙烯酸丁酯、丙烯酸羥乙酯、甲基丙烯酸2-乙基己酯等所代表的(甲基)丙烯酸衍生物而共聚合者即可,並未特別限定。
具體而言,例如,可使用醫藥品添加物辭典2007(日本醫藥品添加劑協會編集)記載作為黏著劑之丙烯酸‧丙烯酸辛酯共聚物、丙烯酸2-乙基己酯‧乙烯基吡咯啶酮共聚物溶液、丙烯酸酯-乙酸乙烯酯共聚物、丙烯酸2-乙基己酯-甲基丙烯酸2-乙基己酯‧甲基丙烯酸十二酯共聚物、丙烯酸甲基-丙烯酸2-乙基己酯共聚合樹脂乳劑、丙烯酸樹脂烷醇胺液所含有的丙烯酸系高分子等之黏著劑、DURO-TAK丙烯酸系黏著劑系列(National Starch and Chemical公司製)、EUDRAGIT系列(樋口商會)等。
就矽酮系高分子之具體例而言,可列舉聚有機矽氧烷等之矽酮橡膠。
此類疏水性高分子係可混合2種以上使用,基於此等高分子之組成全體之重量,考慮黏著膏體之形成及充分的透過性,摻合量係5~90重量%,較佳為10~80重量%,更佳為10~50重量%。
於黏著膏體可含有吸收促進劑。就可使用的吸收促進劑而言,可列舉脂肪酸酯、高級醇、界面活性劑等。
具體而言,可列舉月桂酸甲酯、月桂酸己酯、檸檬酸三乙酯、肉豆蔻酸異丙酯、肉豆蔻酸肉豆蔻酯、肉豆蔻酸辛基十二酯、棕櫚酸鯨蠟酯、三乙酸甘油酯(triacetin)、乳酸十六酯、乳酸月桂酯、水楊酸甲酯、水楊酸二醇、水楊酸乙二醇、癸二酸二乙酯、癸二酸二異丙酯、中鏈脂肪酸三酸甘油脂、月桂醇、硬脂醇、異硬脂醇、肉豆蔻醇、油醇、鯨蠟醇、甘油單辛酸酯、甘油單癸酸酯、甘油單月桂酸酯、甘油單油酸酯、山梨醇酐單月桂酸酯、山梨醇酐單油酸酯、蔗糖單月桂酸酯、聚山梨酸酯20、丙二醇單月桂酸酯、聚乙二醇單月桂酸酯、聚乙二醇單硬脂酸酯、聚桂醇(lauromacrogol)、HCO-60、月桂酸二乙醇醯胺、N-甲基-2-吡咯啶酮、克羅他命酮(crotamiton)、二甲基亞碸,但較佳可列舉檸檬酸三乙酯、肉豆蔻酸異丙酯、乳酸鯨蠟酯、油醇、山梨醇酐單油酸酯、聚乙二醇單硬脂酸酯、聚桂醇、N-甲基-2-吡咯啶酮及三乙酸甘油酯等。
此等之吸收促進劑亦可組合2種以上。
考慮作為貼附製劑之充分的主藥的透過性、及發紅、浮腫等脂皮膚刺激性等,基於黏著膏體之組成全體之重量,此類吸收促進劑係摻合0.01~20重量%左右為較佳,更佳為0.05~10重量%,又更佳為1~10重量%。
於黏著膏體可含有可塑劑。就可使用的可塑劑而言,可列舉石油系油(例如,石蠟系加工油、環烷系加工油、芳香族系加工油等)、鯊烷、鯊烯、植物系油(例如,橄欖油、日本山茶油(camellia oil)、松油(tall oil)、
花生油、蓖麻油)、矽酮油、二元酸酯(例如,酞酸二丁酯、酞酸二辛酯等)、液狀橡膠(例如,聚丁烯、液狀異戊二烯橡膠)、脂肪酸酯類(肉豆蔻酸異丙酯、月桂酸己酯、癸二酸二乙酯、癸二酸二異丙酯)、二乙二醇、聚乙二醇、丙二醇、二丙二醇等。尤其以流動石蠟、液狀聚丁烯、或者矽酮油為較佳。
此等之成分可2種以上混合而使用,考慮充分的皮膚透過性及作為貼附製劑之充分凝集力的維持,此類可塑劑之基於黏著膏體之組成全體的摻合量,以合計而言可作成10~70重量%,較佳為10~60重量%,更佳為10~50重量%。
又,為了調整黏著力,於本發明之黏著膏體可摻合增黏樹脂。
就可使用的增黏樹脂而言,可列舉松脂衍生物(例如,松脂、松脂甘油酯、氫化松脂、氫化松脂甘油酯、松脂之季戊四醇酯等)、脂環族飽和烴樹脂(例如ARKON P100、荒川化學工業公司製)、脂肪族系烴樹脂(例如Quintone B170,日本ZEON公司製)、萜樹脂(例如Clearon P-125,Yasuhara Chemical公司製)、順丁烯二酸樹脂等。
考慮作為貼附製劑之充分的黏著力及剝離時之對皮膚的刺激性,此類增黏樹脂之基於黏著膏體之組成全體的摻合量可為5~70重量%,較佳為5~60重量%,更佳為10~50重量%。
又黏著膏體因應必要可摻合抗氧化劑、填充劑、交聯劑、防腐劑、紫外線吸收劑。
就抗氧化劑而言,期望為生育酚及此等之酯衍生物、抗壞血酸、抗壞血酸硬脂酸酯、降二氫癒創木酸(nordihydroguaiaretic acid)、二丁基羥基甲苯(以下,縮寫為BHT)、丁基羥基苯甲醚等。
就填充劑而言,期望為碳酸鈣、碳酸鎂、矽酸鹽(例如,矽酸鋁、矽酸鎂等)、矽酸、硫酸鋇、硫酸鈣、鋅酸鈣、氧化鋅、氧化鈦等。
就交聯劑而言,期望為胺樹脂、酚樹脂、環氧樹脂、醇酸(alkyd)樹脂、不飽和聚酯等之熱硬化性樹脂、異氰酸酯化合物、嵌段異氰酸酯化合物、有機系交聯劑、金屬或金屬化合物等之無機系交聯劑。
就防腐劑而言,期望為對羥苯甲酸乙酯、對羥苯甲酸丙酯、對羥苯甲酸丁酯等。
就紫外線吸收劑而言,期望為p-胺基苯甲酸衍生物、鄰胺苯甲酸衍生物、水楊酸衍生物、胺基酸系化合物、二烷衍生物、香豆素衍生物、咪唑啉衍生物、嘧啶衍生物等之紫外線吸收劑。
基於黏著膏體之組成全體之重量,此類抗氧化劑、填充劑、交聯劑、防腐劑、紫外線吸收劑等較佳可摻合10重量%以下,更佳為5重量%以下,特佳為2重量%以下。
就本發明之貼附製劑中的貼附劑支撐體而言,可使用伸縮性或非伸縮性之支撐體。例如可選自布、不織布、聚胺甲酸酯、聚酯、聚乙酸乙烯酯、聚偏二氯乙烯、聚乙烯、聚對苯二甲酸乙二酯(以下,縮寫為PET)、
鋁箔等之薄膜、或彼等之複合素材,但PET薄膜為較佳。PET等之薄膜的情形,其厚度係4~75μm為較佳。
本發明之貼附製劑之特徵係於貼附劑層與覆蓋層之間設置緩衝材料。就此類緩衝材料而言,只要具有緩衝性即可,例如可例示胺甲酸酯片、不織布、橡膠海綿、塑料發泡物,但尤其以不織布為較佳。不織布的情形,其單位面積的重量係30~150g/m2左右為較佳,更佳為50~100g/m2。
對於本發明之貼附製劑,在設置於貼附劑層之上的緩衝材料與覆蓋層之間,可進一步設置遮蔽薄膜。
遮蔽薄膜係被設置用以強化覆蓋層與含緩衝材料的貼附劑層之接著性。又,貼附劑支撐體為不織布、或者織布等之通氣性高的材料,且緩衝材料為不織布的情形,亦具有防止於覆蓋黏著劑所含有的黏著劑成分移行至黏著膏體的作用、及防止黏著膏體之成分移行至覆蓋黏著劑的作用。
就此類遮蔽薄膜而言,較佳可使用聚胺甲酸酯、聚酯、聚乙酸乙烯酯、聚偏二氯乙烯、聚乙烯、PET、鋁箔等之片狀物,尤以PET為較佳。
又遮蔽薄膜之厚度係4~75μm為較佳。
本發明之貼附製劑中的覆蓋層係包含覆蓋支撐體及覆蓋黏著劑,具有將貼附劑層強固地固定於皮膚的作用。
就覆蓋支撐體之構成材料而言,例如,可選自布、不織布、聚胺甲酸酯、聚酯、聚乙酸乙烯酯、聚偏二氯
乙烯、聚乙烯、PET、鋁等之薄膜、或彼等之複合材料。其中以使用不織布或者PET為較佳。不織布的情形,係使用其單位面積的重量為30~150g/m2者,較佳為50~100g/m2。
於覆蓋黏著劑使用的基劑成分只要係能將皮膚與貼附製劑接著的生物相容性材料即可,並未特別限定。較佳為感壓性接著劑,更佳為聚丙烯酸酯、聚二甲基矽氧烷、聚異丁烯、或彼等之組合等。又於黏著層之構成材料中亦可添加例如周知之膠黏劑等。
剝離襯墊係將貼附製劑應用於皮膚之前為止保護黏著膏體者,只要為於黏著膏體中所含有的藥物不會變質者、且以可容易剝離的方式被矽酮塗布者即可,並未特別限定。
就此類具體例而言,可列舉將聚乙烯薄膜、聚對苯二甲酸乙二酯薄膜或聚丙烯薄膜作矽酮塗布者。
其次,說明本發明所提供的貼附製劑之製造方法。
首先,將使構成黏著膏體的材料與甲苯等適當的有機溶媒加以混合而獲得的膏體溶液,塗布於襯墊上,將膏體溶液以60~100℃左右乾燥而獲得黏著膏體。
其次於預先積層製作的貼附劑支撐體/緩衝材料(積層支撐體)之貼附劑支撐體側,將黏著膏體積層,而製作中間製劑(貼附劑層+積層支撐體)。
其次,將於覆蓋黏著劑使用的基劑成分與甲苯等適當的有機溶媒等加以混合,將獲得的混合溶液塗布於
PET薄膜等之塑膠片,使此混合溶液於60~80℃左右乾燥,於不織布等之覆蓋支撐體上積層,獲得覆蓋層原始材料。
將獲得的覆蓋層原始材料衝切成所欲大小,剝除此塑膠片,積層於中間製劑之積層支撐體側,獲得貼附製劑。
又,上述之製造方法係具體之一製造方法,不用說,各種修飾方法係可能的。
以下,呈示本發明之貼附製劑的實施例,而進一步具體說明本發明,但本發明並未被限定於此等實施例,於不脫離本發明之技術思想的範圍內的各種變更為可能的。
<貼附劑支撐體/緩衝材料(積層支撐體)、或貼附劑支撐體/緩衝材料/遮蔽薄膜(積層支撐體)之製作>
製作具有以下積層構造之包含貼附劑支撐體/緩衝材料的積層支撐體、或包含貼附劑支撐體/緩衝材料/遮蔽薄膜的積層支撐體。
將作為貼附劑支撐體之PET薄膜(厚度:12μm)、及作為緩衝材料之不織布(單位面積的重量:100g/m2)加以積層而製作。
將作為貼附劑支撐體之PET薄膜(厚度:12μm)、作為緩衝材料之不織布(單位面積的重量:50g/m2)、及作為遮蔽薄膜之PET薄膜(厚度:12μm),以此順序加以積層而製作。
將作為貼附劑支撐體之PET薄膜(厚度:12μm)、作為緩衝材料之不織布(單位面積的重量:100g/m2)、及作為遮蔽薄膜之PET薄膜(厚度:12μm),以此順序積層而製作。
將作為貼附劑支撐體之PET薄膜(厚度:4μm)、作為緩衝材料之不織布(單位面積的重量:50g/m2)、及作為遮蔽薄膜之PET薄膜(厚度:4μm),以此順序積層而製作。
將作為貼附劑支撐體之PET薄膜(厚度:4μm)、作為緩衝材料之不織布(單位面積的重量:100g/m2)、及作為遮蔽薄膜之PET薄膜(厚度:4μm),以此順序積層而製作。
將作為貼附劑支撐體之PET薄膜(厚度:16μm)、作為緩衝材料之不織布(單位面積的重量:50g/m2)、及作為遮蔽薄膜之PET薄膜(厚度:16μm),以此順序積層而製作。
將作為貼附劑支撐體之PET薄膜(厚度:16μm)、作為緩衝材料之不織布(單位面積的重量:100g/m2)、及作為遮蔽薄膜之PET薄膜(厚度:16μm),以此順序積層而製作。
<覆蓋層原始材料之製作>
作為覆蓋層原始材料,係於塑膠片(PET薄膜)上,塗布覆蓋黏著劑,將溶媒乾燥去除後,使覆蓋支撐體貼合而製作。
覆蓋層原始材料:
將67份之作為覆蓋黏著劑之Duro-Tak(註冊商標)87-4287、及33份之EUDRAGIT E100(註冊商標)溶解於甲苯,並混合,塗布於PET薄膜上,將溶媒乾燥去除。之後,使其與作為覆蓋支撐體之不織布(單位面積的重量:80g/m2)貼合,而製作覆蓋原始材料。
<黏著膏體溶液之調製>
基於下述之表1處方,調製含有藥物(多奈派齊)之黏著膏體溶液。
預先將多奈派齊及月桂醇溶解於甲苯後,與溶解於甲苯的殘餘成分混合,而調製黏著膏體溶液。
又,甲苯之添加量係相對於膏體成分100重量份,添加50重量份。
實施例1:
將上述預先調製的黏著膏體溶液塗布於剝離薄膜(剝離襯墊)上後,將溶媒乾燥去除,使其與上述之積層支撐體1貼合後,將其衝切成61mm×61mm之大小,製作中間製劑(貼附劑層+緩衝材料)。
另外,將上述預先製作的覆蓋層原始材料衝切成71mm×71mm的大小,剝離該PET薄膜,使其與上述衝切作成的中間製劑(貼附劑層+緩衝材料)貼合,獲得實施例1之貼附製劑。
實施例2~7:
依據上述之實施例1記載之方法,將預先調製的黏著膏體溶液,塗布於剝離薄膜(剝離襯墊)上後,將溶媒乾燥去除,使其與積層支撐體2(實施例2)、積層支撐體3(實施例3)、積層支撐體4(實施例4)、積層支撐體5(實施例5)、積層支撐體6(實施例6)及積層支撐體7(實施例7)貼合後,各自衝切成61mm×61mm之大小,而製作中間製劑(貼附劑層+緩衝材料+遮蔽薄膜)。
其次,將預先製作的覆蓋層原始材料衝切成71mm×71mm之大小,將該PET薄膜剝離,使其與以上述衝切作成的中間製劑(貼附劑層+緩衝材料+遮蔽薄膜)貼合,各自獲得實施例2~7之貼附製劑。
比較例1(未設置緩衝材料的貼附劑):
將預先調製的黏著膏體溶液塗布於剝離薄膜(剝離襯墊)上後,將溶媒乾燥去除,使其與作為貼附劑支撐體之PET薄膜(厚度:16μm)貼合,將其衝切成61mm×61mm之大小,而製作中間製劑(PET薄膜+膏體)。
其次,另外將預先製作的覆蓋層原始材料衝切成71mm×71mm之大小,將該剝離薄膜剝離,使其與上述衝切的中間製劑(PET薄膜+膏體)貼合,獲得比較例1之貼附製劑。
將關於上述實施例1~7之貼附劑、以及比較例1之貼附劑之組成等,整理呈示於下述表2。
試驗例1:接觸壓力測定
本發明之貼附製劑係一種積層構造之貼附製劑,包含:含有摻合藥物的黏著膏體及貼附劑支撐體的貼附劑層、以及覆蓋層,尤其藉由於貼附劑支撐體與覆蓋層之間設置緩衝材料,由覆蓋層所致的皮膚貼附部位與貼附劑層之黏著膏體的壓合性提升。
為了證明此點,使用實施例1~7、及比較例1之各貼附製劑,進一步使用後述市售之貼附製劑(比較例2),藉由下述之試驗方法,使用BIO SKIN(人工皮膚:BEAULAX,CO.,LTD.製)作為被附著體而進行接觸壓力測定。
<方法>
於作為被附著體的BIO SKIN上裝設 20mm之受壓感應器,儘可能使受壓感應器配置於中央部分,並應用各實施例及各比較例之製劑。
將 90mm之培養皿置於製劑上,以均一地施加荷重(壓力)的方式,靜置500g的砝碼。
將壓力成為一定的狀態維持10秒鐘,而解除荷重。
將壓力之衰減行為特性、及收斂值圖形化,並比較評價。又,藉由事前之檢討,確認收斂點,設為6分鐘(480秒)。
比較例2:
作為比較例2之貼附製劑,使用市售含有丁基原啡因的帶狀製劑(Norspan Tape:註冊商標,經皮吸收型‧持續性疼痛治療劑/久光製藥)。
作為比較試驗,分成以下之各試驗進行檢討。
試驗例1-(1):
使用單位面積的重量50g/m2之不織布與100g/m2之不織布作為緩衝材料的情形的接觸壓之比較。
於實施例2、實施例3、比較例1之各貼附製劑的檢討。
試驗例1-(2)-A:
由貼附劑支撐體及遮蔽薄膜的厚度不同所致的接觸壓的比較(使用單位面積的重量50g/m2之不織布作為緩衝劑的情形之比較)。
於實施例4、實施例6、比較例1、比較例2之各貼附製劑的檢討。
試驗例1-(2)-B:
由貼附劑支撐體及遮蔽薄膜之厚度不同所致的接觸壓之比較(使用單位面積的重量100g/m2之不織布作為緩衝劑的情形之比較)。
於實施例5、實施例7、比較例1、比較例2之各貼附製劑的檢討。
試驗例1-(3):
由遮蔽薄膜之有無所致的接觸壓之比較。
於實施例1、實施例3、比較例1之各貼附製劑的檢討。
<結果>
將各自之試驗結果示於第3~6圖。
由圖中之結果可知,本發明之各貼附製劑與比較例之各貼附製劑比較,對被附著體之接觸壓為高的。
據此,本發明之貼附製劑係呈現對被附著體的高密著性,即使對由運動等所致的皮膚活動亦具有一定的壓力,而黏著膏體於皮膚貼附部位壓合,可進行安定的藥物釋放。
試驗例2:貼附試驗:
對於實施例2~5及比較例1之貼附製劑,製作不含有藥物的各安慰劑製劑,貼附於4名成人受驗者之上腕部,觀察24小時貼附後之製劑之貼附狀態(有無剝離‧浮起)。
<方法>
去除貼附劑層中的剝離、浮起的部分而求得與皮膚密著的部分的面積(接著面積),進一步藉由下述之計算式,算出貼附後24小時的貼附劑層之皮膚接著率。
皮膚接著率=(接著面積/貼附劑層之面積)×100
單位:(%)
<結果>
將其結果示於表3。
如表3所示,可判斷本發明之各貼附製劑與比較例之貼附製劑比較,呈現高皮膚接著率。
依據本發明,可提供一種貼附製劑,其係一種於貼附劑上設置覆蓋層的積層構造之貼附製劑,藉由
於貼附劑支撐體與覆蓋層之間設置緩衝材料,可使由覆蓋層所致的皮膚貼附部位與貼附劑層之黏著膏體的壓合性提升,具有一定的壓力而黏著膏體壓合於皮膚貼附部位,且可安定的釋放藥物。
據此,尤其是作為摻合全身作用性之藥物的貼附劑,於可長期間維持一定之藥物血中濃度的點,其醫療上的效果係極大的。
1‧‧‧貼附製劑
2‧‧‧覆蓋層
3‧‧‧貼附劑層
4‧‧‧覆蓋支撐體
5‧‧‧覆蓋黏著劑
6‧‧‧緩衝材料
7‧‧‧貼附劑支撐體
8‧‧‧黏著膏體
9‧‧‧剝離襯墊(release liner)
Claims (5)
- 一種貼附製劑,其係一種積層構造之貼附製劑,自皮膚貼著側依序包含:含有摻合藥物的黏著膏體及貼附劑支撐體的貼附劑層、以及覆蓋層,該貼附製劑之特徵係:於該貼附劑層之貼附劑支撐體與覆蓋層之間設置緩衝材料,覆蓋層係大於貼附劑層的邊緣部而覆蓋的大小。
- 如請求項1之貼附製劑,其中於覆蓋層與緩衝材料之間進一步設置遮蔽薄膜。
- 如請求項1或2之貼附製劑,其中緩衝材料為不織布。
- 如請求項2之貼附製劑,其中遮蔽薄膜為聚對苯二甲酸乙二酯(PET)薄膜。
- 如請求項1至4中任一項之貼附製劑,其中覆蓋層之大小係相對於貼附劑層之平面面積為150~250%之大小。
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US20170273974A1 (en) | 2016-03-24 | 2017-09-28 | Medrx Co., Ltd | Patch preparations with misuse prevention features |
TWI720366B (zh) * | 2018-11-16 | 2021-03-01 | 得生製藥股份有限公司 | 經皮吸收貼片 |
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US5503844A (en) * | 1993-05-18 | 1996-04-02 | Mli Acquisition Corp. Ii | Foam laminate transdermal patch |
JPH1143431A (ja) | 1997-07-29 | 1999-02-16 | Nitto Denko Corp | カバー材付き貼付剤 |
JP4204665B2 (ja) | 1998-05-28 | 2009-01-07 | 日東電工株式会社 | カバーシートおよびその使用方法 |
JP2005224981A (ja) | 2004-02-10 | 2005-08-25 | Bando Chem Ind Ltd | 積層支持体及び皮膚貼付薬シート |
JP5058531B2 (ja) | 2005-09-09 | 2012-10-24 | 日東電工株式会社 | ビソプロロール含有貼付製剤 |
JP2008037798A (ja) | 2006-08-07 | 2008-02-21 | Bando Chem Ind Ltd | 皮膚貼付薬シート |
EP2269653A4 (en) * | 2008-03-25 | 2013-10-23 | Teikoku Seiyaku Kk | COMPOSITION FOR THE STABILIZATION OF BLOCKER AND THE COMPOSITION COMPRISING TRANSDERMAL ABSORBABLE PREPARATION |
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EP3115044A1 (en) | 2017-01-11 |
EP3115044A4 (en) | 2017-10-11 |
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