TW200838535A - Therapeutic agent for multiple sclerosis - Google Patents
Therapeutic agent for multiple sclerosis Download PDFInfo
- Publication number
- TW200838535A TW200838535A TW097103099A TW97103099A TW200838535A TW 200838535 A TW200838535 A TW 200838535A TW 097103099 A TW097103099 A TW 097103099A TW 97103099 A TW97103099 A TW 97103099A TW 200838535 A TW200838535 A TW 200838535A
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- Taiwan
- Prior art keywords
- multiple sclerosis
- therapeutic agent
- solvate
- phenyl
- agent
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200838535 九、發明說明: 【發明所屬之技術領域】 本發明係關於一種新穎之多發性硬化症之預防及/或治 療劑。 【先前技術】 . 多發性硬化症係因腦及脊錡之脫髓鞘而呈現中樞性功能 哀竭引起視覺卩早礙、運動障礙等的疾病,係經日本厚生 勞働省指定為特定疾病之原因不明的難治之症。在歐美, 於侵害青年成人之神經疾病中患病率最高,每10萬人中為 5〇人左右。在曰本的患病率推測為每1〇萬人中為8〜9人左 右,推測存在約1萬2000名患者。若多發性硬化症發病, 則於較多情形時,症狀會重複緩解與反覆之復發(復發緩 解型)。多發性硬化症尤其於3〇歲前後發病較多,隨著年 j曰加復叙減少’但一部分患者症狀急速惡化(慢性惡化 型)。-般認為,確認於患者之病變部浸潤τ細胞或巨嗟細 胞,該等細胞於中樞神經内破壞鱗脂蛋白並破壞魏稍,結 f引起神轉礙(料敎獻丨)。脫«病灶向整個中樞神 經系統擴展,多發部位為視神經、腦幹、脊髓、小腦等。 =因神經中引起障礙之位置不同而不同,呈現四肢麻療 月抖、疲勞、視神經障礙、排尿·排便障礙等各種症 顯=詳細機制雖仍有許多不明處,但自免疫抑制劑 果之方面考慮般認為其為自體免疫疾病之一 之Γ广專敎獻2)。進而’亦存在以下意見:多發性硬化症 …病毒或細菌之感染所伴隨之免疫系統賦活有關 128383.doc 200838535 (非專利文獻3)。 貝際上’於多發性硬化症之病變部特徵性地發現浸潤有 丁細胞、單核細胞/巨噬細胞,暗示該等細胞所產生之丁hi 型細胞激素(干擾素γ等)與症狀相關聯(非專利文獻4)。因 此’ 一般涊為藉由抑制該等細胞浸潤於病變部,可期待治 療多發性硬化症之效果。 乍為^圮之/口療,係於發病期使用類固醇劑,於緩解期 使用干擾素β(ΙΡΝβ)製劑或格拉默(glatiramer)製劑。一般 認為1™β製劑參與以下情況:藉由作用於T細胞,調節干 擾素γ產生量’又,降低來自抗原呈現細胞之抗原呈現(非 專利文獻5),而抑制免疫應答之增強,延遲多發性硬化症 症狀惡化或減少復發頻率。’然而現狀為··即使投與該等藥 劑,平均一年亦會復發0.8次左右,至今尚未出現確實防 止復發之方法(非專利文獻6)。又認為:該等需要進行頻繁 ^皮下投與’而出現發熱.皮下潰瘍等副作用之問題,依 從性方面亦成為患者之較Α負擔,故而可經
具有較大意義。另一方面,報主右斟μ壬 条月J 報口有對於重症惡化性患者, ==丨娜胺之脈衝療法較為有效,但白血球減 列期”,二]作用較強’要求慎重投舆。在此狀況下,強 …、期王開發有效之治療法。 另 方面’作為小所周知之物質之9掌甘 基)冬[Μ甲硫基)苯基井_3、如^5-(4·氯苯 載,福干1目士 。井3-酮如專利文獻1所記 用於風、:異之抑制介白素-lp產生之作用,適合 用於風濕、關節炎、骨質疏鬆广 人y正f玍…知炎、免疫缺 128383.doc 200838535 乏綜合症、敗血症、肝炎、腎炎、虛血性疾病、胰島素依 存性糖尿病、動脈硬化、帕金森氏病、阿爾茨海默氏病、 白血病等之預防、治療劑。然而,關於應用於多發性硬化 症,至今為止並未報告。 [專利文獻1]國際公開編號WO 99/25697號小冊子 . [非專利文獻 1] Nose worthy 等人;N Engl J Med· 343卷 13 - 號 938-52 頁(2000) [非專利文獻 2] Neuhaus等人;Trends Pharmacol Sci. 24 Φ 卷 3 號 131-8 頁(2003) [非專利文獻 3] Tejada-Simon等人;Ann Neurol· 53卷 189-97 頁(2003) [非專利文獻 4] Bielekova等人;Nat Med. 6 卷 1 167-75 頁 (2000) [非專利文獻5] Joseph等人;J Neuroimmunol· 20卷1號 39-44 頁(1988) 馨 [非專利文獻 6] The IFNB Multiple Sclerosis Study
Group ; Neurology 43 卷 4號 65 5-61 頁(1993) 【發明内容】 % [發明所欲解決之問題] 、 本發明之目的在於提供一種多發性硬化症之預防及/或 治療劑,其對於多發性硬化症之有效性較高,安全性優 異,可經口投與。 [解決問題之技術手段] 本發明者等人於當前現狀進行潛心研究,結果發現藉由 128383.doc 200838535 投與2·^·5·(4_氯苯基)_6例甲硫基)苯基]_2Η+井_3_ :,:斷:其具有優異之抑制多發性硬化症之症狀之作 用’從而完成本發明。 即,本發明係提供 ^種多發性硬化症預防及/或治療劑,其以2_¥基_5_(4_ 氣苯基)_6_[4_(甲硫基)苯基]_211_外3_嗣或其溶劑合物作 為有效成分;
2) -種多發性硬化症之預防及/或治療用㈣組合物,其含 有2-苄基-5-(4-氯苯基)·6·[4_(甲硫基)苯基]_2η-嗒畊_3-酮 或其溶劑合物、以及藥學上允許之载體; 3) -種多發性硬化症之預防及/或治療方法,其藉由投與2_ 苄基-5-(4-氯苯基)-6-[4_(甲硫基)苯基]_211_嗒畊_3_酮或其 溶劑合物之有效量,而預防及/或治療多發性硬化症; 4) 一種2-苄基-5-(4-氣苯基)-6_[4_(曱硫基)苯基>21^嗒畊_3_ 酮或其溶劑合物之用途,其係用以製造多發性硬化症之預 防及/或治療藥; 5)—種2-苄基-5-(4-氯苯基)_6_|;4_(甲硫基)苯基嗒畊_3_ 酮或其溶劑合物之用途,其係用以預防及/或治療多發性 硬化症。 [發明之效果] 本發明之多發性硬化症之預防及/或治療劑可經口投 與,顯示優異之多發性硬化症之抑制作用,有效預防及/ 或治療多發性硬化症。 【實施方式】 128383.doc 200838535 本發明之多發性; 卜 更化症預防及/或治療劑中所使用之2-苄 *本土)6 [4-(甲硫基)苯基]-2H-。荅p井-3-酮係眾所 °、之物貝例如可利用國際公開第99/25697號公報中記 載之方法或其類似方法製造。 节土 5 (4-氯笨基)_6-[4-(甲硫基)苯基]-2H- 口荅 井3酉同可以水合物為代表之溶劑合物之形態存在,該等溶 劑合物亦包含於本發明中。 如/述實施例所示,藉由投與2-节基婦氯苯基)_6·[4_ (夕甲石肌基)苯基]·2Η·。荅或其溶劑合物,而於使用作為 多發性硬化症之動物模型而廣泛知悉的實驗性自體免疫性 腦會髓炎模型小白鼠之評價系中,暗示其具有抑制巨噬細 胞浸潤於脊趙之作用 f ^夂作用,顯不優異之多發性硬化症的抑制作 用二因此’根據本發明,可預防多發性硬化症之發病、預 防復發、抑制惡化、治療,又,可改善其病情。 么月之夕發性硬化症預防及/或治療劑之投與形態並 無特別限定’可根據治療目的進行適當選擇,例如可轉 錠劑、«劑、顆粒劑、薄膜包衣劑、散劑、糖漿劑等之 經口投與或注射劑、坐劑、吸入劑、經皮吸收劑、點眼 劑、點鼻劑等之非經口投與。較好的是經口投與製劑。 適於該等投與形態之醫藥製劑中,可使用藥學上所允許 之載體’例如澱粉類、乳糖、薦糖、甘露醇 ㈣增量劑,·壤脂“臟、馬铃著或木箸搬粉= 酸、硬合石夕酸鹽等崩解劑;爹里丙基甲基纖維素、甲基纖維 素、羧甲基纖維素鈉、海藻酸鹽、明膠、聚乙烯吼咯烷 128383.doc -10- 200838535 酮、蔬糖、阿拉伯膠等黏合劑:滑石、硬脂_、硬脂酸 鎂、固體聚乙二醇類、十二烷基硫酸鈉或其混合物等潤滑 劑;乳糖、玉米澱粉等稀釋劑;檸檬酸、磷酸、酒石酸、 乳酸等有機酸,鹽酸等無機酸,Α氧化鈉、氫氧化卸等氮 氧化鹼金屬…醇胺、二乙醇胺、二異丙醇胺等有機胺 類等緩衝劑;對羥苯曱酸酯類,氯化苯甲烴銨等防腐劑; 硬脂酸鈣、硬脂酸鎂、十二烷基硫酸鈉等陰離子性界面活 性劑’氣化苯甲烴銨、丨索氯銨、西吡氯銨等陽離子性界 面活性劑,單硬脂酸甘油_、蔗糖脂肪酸酯、$氧乙烯氮 化蓖麻油、聚氯氧烯山梨糖醇酐脂肪酸酯、聚氧乙烯脂肪 酸酯、聚氧乙烯烷基醚等非離子性界面活性劑等乳化劑; 亞硫酸鈉、亞硫酸氫鈉、二丁基羥基甲苯、丁基羥基苯甲 醚、依地酸等穩定化劑,除此之外,視需要可進一步組合 使用除臭劑、分散劑、保存劑、香料等。
於本發明中,2-苄基-5-(4-氯苯基)-6-[4-(曱硫基)苯 基]-2H-嗒畊-3-酮或其溶劑合物之投與量可考慮患者之體 重、年齡、性別、症狀等而適當選擇,通常成人之情形 時,每1天為2〜320 mg,較好的是4〜16〇 mg,分成丨次或數 次投與。 [實施例] 以下,列舉實施例對本發明加以更具體說明,但本發明 之技術範圍並不限定於該等實施例。 實施例1 128383.doc 200838535 實驗性自體 得分評價。 免疫性腦脊髓炎之症狀係根據 以下項目 進行 °無症狀 1尾部無力或步行異常 2尾部無力且步行異常 3 1條四肢麻痒 4 2條以上四肢麻痒 5死亡
B ·結果 …表不得分評價之轉變’表1中表示各個體之發病時 曰,的解析,圖2中表示各個體之最大得分之解析結果。結 果係利用所有例數10隻之平均值士標準誤差而表示。測定 係使用非參數Dunnett。 貝驗中’對知群致敏後1 6天後’投與ΐρΝβ之群致敏後 12、3 7、4 0天後出現死亡例。另一方面,投與藥劑a之群 無死亡例。發現藉由經口投與藥劑A,而使與ΐρΝβ大致同 等之實驗性自體免疫性腦脊髓炎得分得到改善(圖1),又, 發現得分為2以上之發病延遲之傾向(表1),進而,發現各 個體之最大實驗性自體免疫性腦脊聽炎得分下降之傾向 (圖 2)。 128383.doc -13- 200838535 [表i] 實驗性自體免疫性腦脊髓炎發病開始天數之解析 結果 得分為2以上 發病率 發病開始天數(天) 對照 9/10 18.3士0.8 藥劑A 8/10 22.4±1.5 IFNP 5/10 27.4 土 3·6* *ρ<0·05與對照比較使用Dunnett 實施例2 A. 材料與方法 第42天自實施例1中所使用之小白鼠摘出脊髓,使用 \ ISOGEN (Nippon Gene),將RNA純化。作為比車交,亦自未 致敏之正常小白鼠同樣摘出脊髓用於測定。自所獲得之 RNA使用反轉錄酶合成cDNA,根據Applied Biosystems公 司之方案,藉由使用TaqMan探針之即時PCR法對各種基因 (F4/80、TNF-α、IL-Ιβ、IL-6)之 mRNA 量進行定量(ABI PRISM7900HT系統;Applied Biosystems公司)。同時測定 核糖體RNA量用於修正。 B. 結果 實驗性自體免疫性腦脊髓炎模型中,各種基因之mRNA 量與正常小白鼠相比均顯示較高之值。相對於此,投與藥 劑A之小白鼠中,單核細胞/巨噬細胞系細胞中特異性表達 之F4/80的mRNA表達量下降,暗示具有抑制單核細胞/巨 噬細胞系細胞浸潤於脊髓中之作用。又,亦確認藥劑A抑 128383.doc -14- 200838535 tt IL_ 1Ρ、IL_6等細胞激素量之表達,TNF-α、IL-1β IL-6主要由上述細胞產生,並暗示與多發性硬 病情關係較大。另一方面,投與1卿之小白鼠中,雖 制il,、il_6之表達,但並不抑制價·。之表達。又’,、遍 樂劑A相比’抑制F之灿从之表達的作用較弱。、 .根據以上結果可知,本發明之藥劑A或其溶劑合物對於 . 乡發性硬化症,於預防其發病、預防復發、抑制惡化、户 #、改善病情等方面較為有效,可用作多發性硬化症之預 顯防及/或治療劑。 【圖式簡單說明】 圖1係表示達到實驗性自體免疫性腦脊髓炎得分之轉變 的藥劑效果之圖。 S 2係表示達到隶大發病得分之藥劑效果之圖。 圖3係表示達到實驗性自體免疫性腦脊髓炎小白鼠脊髓 中F4/80之mRNA表達量的藥劑效果之圖。 除圖4係表不達到實驗性自體免疫性腦脊髓炎小白鼠脊髓 中TNF-a之mRNA表達量的藥劑效果之圖。 S 5係表示達到貝驗性自體免疫性腦脊髓炎小白鼠脊艟 • 中1L_li32mRNA表達量的藥劑效果之圖。 • 圖6係表示達到實驗性自體免疫性腦脊髓炎小白鼠脊魏 中IL-6之mRNA表達量的藥劑效果之圖。 128383.doc 15
Claims (1)
- 200838535 十、申請專利範圍: 1. 一種多發性硬化症之預防及/或治療劑,其以2-苄基-5-(4-氯苯基)-6-[4-(曱硫基)苯基]-2H-嗒畊-3-酮或其溶劑合 物作為有效成分。 2. 如請求項1之多發性硬化症之預防及/或治療劑,其係經 - 口投與製劑。128383.doc
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RU2209813C2 (ru) | 1997-11-19 | 2003-08-10 | Кова Ко., Лтд. | Производные пиридазина, лекарственные средства на их основе и способ лечения артрита |
WO2002022587A1 (fr) * | 2000-09-18 | 2002-03-21 | Eisai Co., Ltd. | Pyridazinones et triazinones ainsi que leur utilisation medicale |
-
2008
- 2008-01-28 JP JP2008556026A patent/JPWO2008093495A1/ja active Pending
- 2008-01-28 CA CA002669563A patent/CA2669563A1/en not_active Abandoned
- 2008-01-28 US US12/516,595 patent/US20100075972A1/en not_active Abandoned
- 2008-01-28 EA EA200970720A patent/EA200970720A1/ru unknown
- 2008-01-28 MX MX2009008059A patent/MX2009008059A/es unknown
- 2008-01-28 KR KR1020097015733A patent/KR20090114371A/ko not_active Application Discontinuation
- 2008-01-28 EP EP08710303A patent/EP2127653A1/en not_active Withdrawn
- 2008-01-28 BR BRPI0805841-5A patent/BRPI0805841A2/pt not_active IP Right Cessation
- 2008-01-28 CN CNA2008800032965A patent/CN101600435A/zh active Pending
- 2008-01-28 TW TW097103099A patent/TW200838535A/zh unknown
- 2008-01-28 AU AU2008211480A patent/AU2008211480A1/en not_active Abandoned
- 2008-01-28 WO PCT/JP2008/000099 patent/WO2008093495A1/ja active Application Filing
Also Published As
Publication number | Publication date |
---|---|
EA200970720A1 (ru) | 2009-12-30 |
CN101600435A (zh) | 2009-12-09 |
JPWO2008093495A1 (ja) | 2010-05-20 |
AU2008211480A1 (en) | 2008-08-07 |
CA2669563A1 (en) | 2008-08-07 |
WO2008093495A1 (ja) | 2008-08-07 |
KR20090114371A (ko) | 2009-11-03 |
MX2009008059A (es) | 2009-08-12 |
US20100075972A1 (en) | 2010-03-25 |
BRPI0805841A2 (pt) | 2011-08-30 |
EP2127653A1 (en) | 2009-12-02 |
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