JP5223859B2 - 神経因性疼痛新規予防剤及び/又は治療剤 - Google Patents
神経因性疼痛新規予防剤及び/又は治療剤 Download PDFInfo
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- JP5223859B2 JP5223859B2 JP2009504091A JP2009504091A JP5223859B2 JP 5223859 B2 JP5223859 B2 JP 5223859B2 JP 2009504091 A JP2009504091 A JP 2009504091A JP 2009504091 A JP2009504091 A JP 2009504091A JP 5223859 B2 JP5223859 B2 JP 5223859B2
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- pain
- morpholine
- neuropathic pain
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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
- A61K31/535—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 oxygen as the ring hetero atoms, e.g. 1,2-oxazines
- A61K31/5375—1,4-Oxazines, e.g. morpholine
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- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
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- A61P25/02—Drugs for disorders of the nervous system for peripheral neuropathies
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- A—HUMAN NECESSITIES
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P3/00—Drugs for disorders of the metabolism
- A61P3/08—Drugs for disorders of the metabolism for glucose homeostasis
- A61P3/10—Drugs for disorders of the metabolism for glucose homeostasis for hyperglycaemia, e.g. antidiabetics
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Description
本発明の他の目的は、神経因性疼痛を予防及び/又は治療するためのモルホリン誘導体又はその製薬学的に許容できる塩の有効量及び製薬学的に許容できる担体を含有する医薬組成物を提供することである。
本発明のさらなる目的は、神経因性疼痛を予防及び/又は治療するための医薬を製造するためのモルホリン誘導体又はその製薬学的に許容できる塩の使用を提供することである。
本発明のさらなる目的は、モルホリン誘導体又はその製薬学的に許容できる塩の有効量を投与することからなる神経因性疼痛を予防及び/又は治療する方法を提供することである。
本発明のさらなる目的は、モルホリン誘導体又はその製薬学的に許容できる塩、及び、薬学的に許容される賦形剤を混合することからなる神経因性疼痛を予防及び/又は治療するための医薬用組成物の製造方法を提供することである。
本発明のさらなる目的は、モルホリン誘導体又はその製薬学的に許容できる塩を有効成分として含有する医薬組成物及びモルホリン誘導体又はその製薬学的に許容できる塩が神経因性疼痛を予防及び/又は治療するために使用され得るまたは使用されるべき旨の記載を含むコマーシャルパッケージを提供することである。
R3は、水素、低級アルキル基、フェニル基又はベンジル基を示し、
点線は、二重結合を形成できる。
(1)式(I)で示されるモルホリン誘導体又はそれらの製薬学的に許容される塩を有効成分として含有するアロディニア、痛覚過敏、知覚過敏、自発痛、癌性疼痛、三叉神経痛、幻肢痛、帯状疱疹後疼痛、繊維筋痛症、腰下肢痛症、視床痛、絞扼性(圧迫性)末梢神経障害、非定形性顔面痛、脊髄損傷に伴う痛み、多発性硬化症に伴う痛み、化学療法誘発ニューロパチーに伴う痛み、モルヒネなどの麻薬性鎮痛薬による鎮痛効果が不十分な癌性疼痛、糖尿病性神経障害に伴う疼痛の予防剤及び/又は治療剤。
(2)式(I)で示されるモルホリン誘導体又はそれらの製薬学的に許容される塩を有効成分として含有する糖尿病性神経障害に伴う疼痛の予防剤及び/又は治療剤。
(4)式(I)で示される化合物が(±)‐2‐[(インデン‐7‐イルオキシ)メチル]モルホリン又はその製薬学的に許容できる塩である(2)に記載の予防剤及び/又は治療剤。
(6)式(I)で示される化合物が(+)‐2‐[(インデン‐7‐イルオキシ)メチル]モルホリン又はその製薬学的に許容できる塩である(2)に記載の予防剤及び/又は治療剤。
(8)式(I)で示される化合物が(‐)‐2‐[(インデン‐7‐イルオキシ)メチル]モルホリン又はその製薬学的に許容できる塩である(2)に記載の予防剤及び/又は治療剤。
式(I)の化合物は、水和物、薬学的に許容可能な各種溶媒和物も形成し得る。これら水和物、溶媒和物も本発明に含まれる。
(実験)
神経因性疼痛に対する鎮痛作用の検証は、L5/L6脊髄神経結紮モデルを用いてKimらの方法に準じて行った。すなわち雄性SDラットの左側L5およびL6坐骨神経をペントバルビタール麻酔下で絹糸で結紮する手術を施した後、評価を実施した。評価法は動物の後肢裏におけるvon Frey Testで検討した(Pain 1992年,50巻, p355−363)。すなわち、von Frey Filamentを用いて、神経結紮ラットの手術側肢に、回避反応が認められるまで加重し、回避反応が認められる最小強度(g)を痛覚閾値として求めた。化合物評価は、安定して閾値の低下が認められる、手術日から7から14日後に実施した。化合物評価の前日にvon Frey Testを実施して痛覚閾値の平均値にバラツキが少なくなるように群分けを行った。溶媒(Vehicle)、(±)‐2‐[(インデン‐7‐イルオキシ)メチル]モルホリン・塩酸塩(Indeloxazine hydrochloride)、(+)‐2‐[(インデン‐7‐イルオキシ)メチル]モルホリン・塩酸塩((+)‐Indeloxazine hydrochloride)、(−)‐2‐[(インデン‐7‐イルオキシ)メチル]モルホリン・塩酸塩((−)‐Indeloxazine hydrochloride)及び、Duloxetineが30mg/kgとなるように溶媒で希釈した希釈液を、各群のラットに経口投与した。Venlafaxineは経口吸収性が悪いことから、腹腔内投与した。溶媒は、蒸留水を用いた。痛覚閾値測定はDuloxetineは投与の3時間後,その他化合物は投与の1時間後に実施した。化合物の鎮痛作用は溶媒投与群の手術側肢の痛覚閾値低下に対する改善作用で検討した。評価方法は、S.K.Joshiらの方法(Neuroscience 2006年 143巻 p587−596)を用いて行なった。有意差検定は、Student−t検定を用い、溶媒投与群と薬物投与群との間で行った。
von Frey Testでの結果を表1に示す。表中の数値は,正常側肢の痛覚閾値を100%、手術側肢の痛覚閾値を0%としたときの化合物の閾値改善率の平均値±標準誤差(SEM)を表す。(±)‐2‐[(インデン‐7‐イルオキシ)メチル]モルホリン・塩酸塩、(+)‐2‐[(インデン‐7‐イルオキシ)メチル]モルホリン・塩酸塩、及び、(−)‐2‐[(インデン‐7‐イルオキシ)メチル]モルホリン・塩酸塩は、30mg/kgの経口投与において、溶媒群と比較して有意な差を示し、更に正常側肢閾値レベルまでの痛覚閾値改善効果を示した。すなわち、これら3化合物は神経障害により生じた痛覚閾値低下(アロディニアなどの感覚異常)を正常レベルまでに回復させる鎮痛作用があることが示された。一方、Duloxetine及びVenlafaxineの30mg/kg投与における閾値改善効果は溶媒群と比較して有意な差がなく、部分的な効果であった。
Claims (4)
- (+)‐2‐[(インデン‐7‐イルオキシ)メチル]モルホリン又はその製薬学的に許容できる塩を有効成分として含有する神経因性疼痛の予防剤及び/又は治療剤。
- (-)‐2‐[(インデン‐7‐イルオキシ)メチル]モルホリン又はその製薬学的に許容できる塩を有効成分として含有する神経因性疼痛の予防剤及び/又は治療剤。
- 神経因性疼痛を予防及び/又は治療するための医薬を製造するための(+)‐2‐[(インデン‐7‐イルオキシ)メチル]モルホリン又はその製薬学的に許容できる塩の使用。
- 神経因性疼痛を予防及び/又は治療するための医薬を製造するための(-)‐2‐[(インデン‐7‐イルオキシ)メチル]モルホリン又はその製薬学的に許容できる塩の使用。
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JP (1) | JP5223859B2 (ja) |
KR (1) | KR20090130050A (ja) |
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RU2011113722A (ru) * | 2008-09-11 | 2012-10-20 | Астеллас Фарма Инк. (Jp) | Новая фармацевтическая композиция для лечения ноцицептивной боли |
AU2009292499A1 (en) | 2008-09-11 | 2010-03-18 | Astellas Pharma Inc. | Novel salt of morpholine derivative |
US20140287021A1 (en) * | 2013-03-21 | 2014-09-25 | Panacea Pharmaceuticals | Treatment of chemotherapy-induced peripheral neuropathy |
TW202203929A (zh) * | 2020-04-03 | 2022-02-01 | 日商塩野義製藥股份有限公司 | 疼痛治療用醫藥 |
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EP2123642A1 (en) | 2009-11-25 |
JPWO2008111668A1 (ja) | 2010-06-24 |
CA2680935A1 (en) | 2008-09-18 |
BRPI0808809A2 (pt) | 2014-08-19 |
CN101646662A (zh) | 2010-02-10 |
AU2008225378A1 (en) | 2008-09-18 |
CN101646662B (zh) | 2012-07-11 |
IL200668A0 (en) | 2010-05-17 |
MX2009009702A (es) | 2009-10-07 |
CN101636391A (zh) | 2010-01-27 |
WO2008111668A1 (ja) | 2008-09-18 |
US20100087439A1 (en) | 2010-04-08 |
EP2123642A4 (en) | 2011-12-07 |
RU2009138028A (ru) | 2011-04-20 |
TW200846002A (en) | 2008-12-01 |
CN101636391B (zh) | 2012-11-28 |
RU2462459C2 (ru) | 2012-09-27 |
KR20090130050A (ko) | 2009-12-17 |
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