JP6879560B2 - アルツハイマー病の予防及び/又は治療剤 - Google Patents
アルツハイマー病の予防及び/又は治療剤 Download PDFInfo
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- JP6879560B2 JP6879560B2 JP2017559255A JP2017559255A JP6879560B2 JP 6879560 B2 JP6879560 B2 JP 6879560B2 JP 2017559255 A JP2017559255 A JP 2017559255A JP 2017559255 A JP2017559255 A JP 2017559255A JP 6879560 B2 JP6879560 B2 JP 6879560B2
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Description
しかし、これらの調節薬は、ADモデルマウスを用いた前臨床試験において大きな成功を得たにもかかわらず、ヒトへ転用した場合、多くの臨床試験において失敗に終わっている。
従って、薬物の安全性の解決と先制治療(早期治療)がAβを標的とする薬剤を有効とするためには必須であると考えらえる。
[1]化合物番号1〜130で表される化合物からなる群より選択される2以上の化合物を組み合わせてなる、アルツハイマー病の予防又は治療剤。
[2]クラスター1、2、4及び5からなる群より選択される2以上のクラスターに属する2種以上の化合物を組み合わせてなる、[1]に記載の剤。
[3]クラスター1に属する化合物がクロモリン(Cromolyn)であり、クラスター2に属する化合物がブロモクリプチン(Bromocriptine)及び/又はフルバスタチン(Fluvastatin)であり、クラスター4に属する化合物がプロブコール(Probucol)であり、クラスター5に属する化合物がシロスタゾール(Cilostazol)及び/又はトピラメート(Topiramate)である、[2]に記載の剤。
[4]Bromocriptine、Cilostazol、Cromolyn、Fluvastatin、Probucol、Topiramateからなる群より選択される2以上の化合物を組み合わせてなる、[1]〜[3]のいずれかに記載の剤。
[5]Bromocriptine、Cromolyn及びTopiramateを組み合わせてなる[4]に記載の剤。
[6]Bromocriptine、Cilostazol及びProbucolを組み合わせてなる、[4]に記載の剤。
[7]対象におけるアルツハイマー病の予防又は治療方法であって、化合物番号1〜130で表される化合物からなる群より選択される2以上の化合物をそれぞれ治療上有効な量、該対象に投与することを含む、方法。
[8]前記治療上有効な量が、各化合物における既知の最大無毒性用量以下である、[7]に記載の方法。
また、表1に記載の各化合物は、ハロゲン化物(フッ化物、塩化物、臭化物、ヨウ化物等)であってもよい。
表1に記載の各化合物は、結晶であってもよく、結晶形が単一であっても結晶形混合物であっても本発明の化合物に包含される。結晶は、自体公知の結晶化法を適用して、結晶化することによって製造することができる。
表1に記載の各化合物は、溶媒和物(例、水和物等)であっても、無溶媒和物(例、非水和物等)であってもよく、いずれも本発明の化合物に包含される。
また、同位元素(例、3H、14C、35S、125I等)等で標識された化合物も、表1に記載の化合物に包含される。
従って、本発明の医薬において、好ましくは異なるクラスターに属する表1に記載の2以上の化合物が組み合わされる。異なるクラスターに分類される化合物を組み合わせる場合、クラスターの組合せは、化合物の単独での投与と比較して優れた効果を有する限り特に制限されないが、例えば、クラスター1、2、4及び5からなる群より選択される2以上のクラスターに属する2種以上の化合物の組合せであることが好ましい。3種以上の化合物を組み合わせる場合、いずれか1種の化合物が異なるクラスターに属していれば、他の2種以上の化合物は同一のクラスターに属していてもよい。
好ましい一実施態様において、本発明の医薬は、クラスター1、2、4及び5からなる群より選択される(1)2種のクラスター(例、クラスター1と2、クラスター1と4、クラスター1と5、クラスター2と4、クラスター2と5、クラスター4と5)に属する2種以上の化合物、(2)3種のクラスター(例、クラスター1、2及び4、クラスター1、2及び5、クラスター1、4及び5、クラスター2、4及び5)に属する3種以上の化合物、又は(3)4種のクラスター(クラスター1、2、4及び5)に属する4種以上の化合物を組み合わせたものであり得る。より好ましい実施態様において、本発明の医薬は、3種のクラスターに属する3種以上の化合物であり、特に好ましくは、クラスター1、2及び5に属する3種以上の化合物、又はクラスター2、4及び5に属する3種以上の化合物を組み合わせたものであり得る。
別の実施態様において、本発明の医薬は、クラスター1、2、4及び5からなる群より選択される2以上のクラスターに属する2種以上の化合物に加えて、他のクラスター(クラスター3及び6〜10)に属する1種以上の化合物をさらに組み合わせることができる。
(a)クラスター1:Cromolyn及びNiflumic acid、好ましくはCromolyn
(b)クラスター2:Bromocriptine及びFluvastatin
(c)クラスター4:Probucol及びTioxolone、好ましくはProbucol
(d)クラスター5:Cilostazol及びTopiramate
従って、好ましい実施態様において、本発明の医薬は、上記(a)から選ばれる1以上の化合物(Cromolyn及び/又はNiflumic acid、好ましくはCromolyn)、上記(b)から選ばれる1以上の化合物(Bromocriptine及び/又はFluvastatin)、上記(c)から選ばれる1以上の化合物(Probucol及び/又はTioxolone、好ましくはProbucol)、並びに上記(d)から選ばれる1以上の化合物(Cilostazol及び/又はTopiramate)から選択される2種((a)と(b)、(a)と(c)、(a)と(d)、(b)と(c)、(b)と(d)、(c)と(d))の化合物、3種((a)、(b)及び(c)、(a)、(b)及び(d)、(a)、(c)及び(d)、並びに(b)、(c)及び(d))の化合物、あるいは4種((a)、(b)、(c)及び(d))の化合物を組み合わせたものである。
さらに好ましくは、本発明の医薬は、Bromocriptine、Cilostazol、Cromolyn、Fluvastatin、Probucol及びTopiramateからなる群より選択される2以上の化合物、好ましくは3以上の化合物を組み合わせてなるものである(但し、BromocriptineとFluvastatin、あるいはCilostazolとTopiramateとを組み合わせる場合は、さらに別の1以上の化合物を組み合わせることが望ましい)。
特に好ましくは、本発明の医薬は、Bromocriptine、Cromolyn及びTopiramateを組み合わせたもの(「BCroT」と略記する場合がある)、あるいはBromocriptine、Cilostazol及びProbucolを組み合わせたもの(「BciP」と略記する場合がある)であり、最も好ましくはBCroTである。
(e)クラスター3:Pinacidil及びVerapamil
(f)クラスター6:Cetrimonium
(g)クラスター7:Metricrane
(h)クラスター8:Dapsone
(i)クラスター9:Chloropyramine
例えば、表1に記載される化合物の安全性に関する情報は、アメリカ国立医学図書館が運営するDailyMed(http://dailymed.nlm.nih.gov/dailymed/index.cfm)より入手することができる。
ここで述べられた特許および特許出願明細書を含む全ての刊行物に記載された内容は、ここに引用されたことによって、その全てが明示されたと同程度に本明細書に組み込まれるものである。
従って、表1に記載される、異なるクラスターに属する2種以上の化合物を組み合わせて用いることにより、安全かつ有効にAD患者におけるAβ病態を改善することが可能であり、臨床症状はないがアミロイド検査で陽性と判定されたAD予備群に対する先制治療としての介入が期待できる点で極めて有用である。
Claims (5)
- (A)ブロモクリプチン又はその薬理学的に許容される塩と、(B)シロスタゾール、クロモリン、プロブコール及びトピラメート並びにそれらの薬理学的に許容される塩からなる群より選択される1以上の化合物とを組み合わせてなる、アルツハイマー病の予防又は治療剤であって、Aβ42レベルの低減又はAβ42/40比の低減に作用することを特徴とする、剤。
- (A)ブロモクリプチン又はその薬理学的に許容される塩と、(B)少なくともトピラメート又はその薬理学的に許容される塩とを組み合わせてなる、請求項1に記載の剤。
- ブロモクリプチン又はその薬理学的に許容される塩及びトピラメート又はその薬理学的に許容される塩を組み合わせてなる、請求項2に記載の剤。
- ブロモクリプチン又はその薬理学的に許容される塩、クロモリン又はその薬理学的に許容される塩及びトピラメート又はその薬理学的に許容される塩を組み合わせてなる、請求項2に記載の剤。
- ブロモクリプチン又はその薬理学的に許容される塩、シロスタゾール又はその薬理学的に許容される塩及びプロブコール又はその薬理学的に許容される塩を組み合わせてなる、請求項1に記載の剤。
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EP3398614A1 (en) | 2018-11-07 |
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WO2017115873A1 (ja) | 2017-07-06 |
US11026942B2 (en) | 2021-06-08 |
US20190008860A1 (en) | 2019-01-10 |
EP3398614A4 (en) | 2019-12-25 |
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