JP7252653B2 - 重水素化2-アミノ-2-メチルプロピオン酸および/または2-(n-メチルアミノ)-2-メチルプロピオン酸を含有する腫瘍学的病気の磁気共鳴診断のための調剤薬、およびその調剤薬を使用した診断方法 - Google Patents
重水素化2-アミノ-2-メチルプロピオン酸および/または2-(n-メチルアミノ)-2-メチルプロピオン酸を含有する腫瘍学的病気の磁気共鳴診断のための調剤薬、およびその調剤薬を使用した診断方法 Download PDFInfo
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- JP7252653B2 JP7252653B2 JP2020546269A JP2020546269A JP7252653B2 JP 7252653 B2 JP7252653 B2 JP 7252653B2 JP 2020546269 A JP2020546269 A JP 2020546269A JP 2020546269 A JP2020546269 A JP 2020546269A JP 7252653 B2 JP7252653 B2 JP 7252653B2
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- 229910052700 potassium Inorganic materials 0.000 description 1
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- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
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- 150000003384 small molecules Chemical class 0.000 description 1
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- KDYFGRWQOYBRFD-UHFFFAOYSA-L succinate(2-) Chemical compound [O-]C(=O)CCC([O-])=O KDYFGRWQOYBRFD-UHFFFAOYSA-L 0.000 description 1
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- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 1
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Images
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C229/00—Compounds containing amino and carboxyl groups bound to the same carbon skeleton
- C07C229/02—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton
- C07C229/04—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated
- C07C229/06—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated having only one amino and one carboxyl group bound to the carbon skeleton
- C07C229/08—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated having only one amino and one carboxyl group bound to the carbon skeleton the nitrogen atom of the amino group being further bound to hydrogen atoms
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
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- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K49/00—Preparations for testing in vivo
- A61K49/06—Nuclear magnetic resonance [NMR] contrast preparations; Magnetic resonance imaging [MRI] contrast preparations
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- G01R33/56—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution
- G01R33/5601—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution involving use of a contrast agent for contrast manipulation, e.g. a paramagnetic, super-paramagnetic, ferromagnetic or hyperpolarised contrast agent
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
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Description
a)本発明による診断薬が対象に投与される;
b)2-アミノ-2-メチルプロピオン酸および/もしくは2-(N-メチルアミノ)-2-メチルプロピオン酸および/もしくはその薬学的に許容される塩の重水素化誘導体、または2-アミノ-2-メチルプロピオン酸および/もしくは2-(N-メチルアミノ)-2-メチルプロピオン酸および/もしくはその薬学的に許容される塩の少なくとも2つの異なる重水素化誘導体の混合物が腫瘍組織に集積するのに十分な時間の後、重水素核の振動数での重水素断層撮影および/もしくはNMRスペクトル、磁気共鳴画像法および/または磁気共鳴分光法が実行され、2H-MR画像および/または2H-NMRスペクトルをそれぞれ得る;
c)腫瘍学的病気の有無を、2-アミノ-2-メチルプロピオン酸および/または2-(N-メチルアミノ)-2-メチルプロピオン酸および/もしくはその薬学的に許容される塩の重水素化誘導体、または2-アミノ-2-メチルプロピオン酸および/もしくは2-(N-メチルアミノ)-2-メチルプロピオン酸および/その薬学的に許容される塩の少なくとも2つの異なる重水素化誘導体の混合物の集積レベルを反映する、観察される重水素核のシグナル強度に基づいて診断される。
本発明をより良く理解するために、以下は本発明の説明で使用されるいくつかの用語である。
1)腫瘍組織中に急速かつ選択的に集積される(特に、膜輸送が十分に効率的な機構である必要がある);
2)やや緩徐な排泄を特徴とする(腫瘍中に大量の薬が集積するために十分な時間を与えられる);
3)著しく代謝されない(生体分子内に重水素が組み込まれることを含む、副作用の可能性を最小限にし、腫瘍のバックグラウンドシグナルを変えずに、前回の投与からたった数時間で検査を繰返すことが可能となる);
4)必要とされる濃度において毒性が低い(十分に多くの薬剤の量を投与することが可能になる);
5)大量の重水素を含有する(十分なシグナル強度を達成するのに必要)。
a)本発明のいくつかの実施形態では、1H MRIが実施される。1H MRIの位置合わせは、第1に、重水素シグナルにおいて、解剖学的基準フレームを確立し、第2に、悪性が疑われる領域を同定することを可能にする(本発明の他の実施形態では、2H MRIの視野の明確化は他の方法で実施することができ、特に、超音波、コンピューター断層撮影法、X線撮影、触診、生検、腫瘍マーカーについて生物学的流体の分析、放射性核種の診断、身体検査による);
b)診断薬を投与する;
c)対象の腫瘍組織で診断薬が集積するのに十分は時間後、2HMR画像が、診断薬の重水素核の歳差運動周波数で位置合わせする;
d)得られた重水素MR画像を分析し、異常に高密度の領域を見つけ、従って、診断薬の集積を説明する。特に、1Hおよび2Hで得た画像を比較することができる:1Hおよび2Hでの異常領域が同じであれば、それは高い確率で悪性が存在することを意味する。しかし、1Hで異常が存在することは必須ではない:1H MRIを通して得た画像に腫瘍がみられないが、一方で、2H MRIで得た画像で診断薬の集積が観察されるという状況もあり得る。後者では、1H MRIは、疑わしい領域の解剖学的参照のためだけに使用される。
a)1H MRIを悪性の疑いを有する領域を同定するために実行する(本発明の他の実施形態では、2H NMRの視野の明確化は他の方法で実施することができ、特に、超音波、コンピューター断層撮影法、X線撮影、触診、生検、腫瘍マーカーについて生物学的流体の分析、放射性核種の診断、身体検査による);
b)診断薬を投与する;
c)対象の腫瘍組織中の診断薬が集積するのに十分な時間の後、(例えば、1H MRIの結果に従って)悪性の疑いがある領域に対応したボクセルの重水素のスペクトルが位置合わせされる(特に、局所的分光法を使用して);任意に、近隣のボクセルにスペクトルが位置合わせされるまたはシグナル強度が比較される;特定の実施形態では、送信、送受信、体積、インプラント、または表面コイルを使用して分光法を実行することができる;
d)悪性の疑いがある領域に対応したボクセルのシグナル強度を次のものと比較する:(i)当該組織の一般的な値(健常者で第一に規定される)および/または(ii)同じ組織または臓器であり、1H MRIに従って、異常がない対応する近隣のボクセルの強度。増加したシグナル強度は診断薬の集積を示唆し、ゆえに悪性が存在する。
本発明を使用した技術的結果の客観的な徴候の可能性は、この分野において採用される方法によって研究を実施するプロセスで得られる実験情報を含む、実施例から得られる信頼性のあるデータによって確認される。本発明は、図によって例証される。
2-アミノ-2-(CD3)-3,3,3-D3-プロピオン酸の合成
1HNMR(D2O):178.1,23.5。
重水素化2-アミノ-2-メチルプロピオン酸の希釈溶液の重水素MR画像の位置合わせの可能性を例証するために、以下の実験を実行した。
この実施例では、乳がん4Т1を摂取した(実験の10日前に、左前足の下に5105セル/60μlを注入)Balb/c系マウスにて実験を行った。
1)最大2H MRIを使用した視覚化に十分な濃度で、2-アミノ-2-(CD3)-3,3,3-D3-プロピオン酸は腫瘍組織をin vivoで集積する。
2)2H MRIを使用して悪性腫瘍を検知するために、2-アミノ-2-(CD3)-3,3,3-D3-プロピオン酸を診断薬として使用することができる。
この実施例では、C6膠腫を摂取したウィスターラットおよび健康なウィスターラットで実験を行った。
Claims (12)
- 2-アミノ-2-メチルプロピオン酸の重水素化誘導体もしくは2-(N-メチルアミノ)-2-メチルプロピオン酸の重水素化誘導体もしくはその薬学的に許容される塩、または少なくとも2つの異なる2-アミノ-2-メチルプロピオン酸の重水素化誘導体もしくは2-(N-メチルアミノ)-2-メチルプロピオン酸の重水素化誘導体もしくはその薬学的に許容される塩の混合物を含み、前記誘導体は重水素化したもののみであり、腫瘍学的病気を重水素の振動数での磁気共鳴画像法または磁気共鳴分光法によって診断するための、診断薬。
- 少なくとも1つの薬学的に許容される補助剤をさらに含む、請求項1に記載の診断薬。
- 薬学的に許容される前記補助剤は、担体、充填剤または溶媒である、請求項2に記載の診断薬。
- 2-アミノ-2-メチルプロピオン酸の前記重水素化誘導体は、2-アミノ-2-(CD3)-3,3,3-D3-プロピオン酸、または2-アミノ-2-(CD2H)-3,3,3-D3-プロピオン酸、または2-アミノ-2-(CD2H)-3,3,3-D3-プロピオン酸、または2-アミノ-2-メチル-3,3,3-D3-プロピオン酸、または2-アミノ-2-(CD2H)-3,3-D2-プロピオン酸、または2-アミノ-2-(CDH2)-3,3-D2-プロピオン酸、または2-アミノ-2-メチル-3,3-D2-プロピオン酸、または2-アミノ-2-(CDH2)-3-D-プロピオン酸、または2-アミノ-2-メチル-3-D-プロピオン酸である、請求項1に記載の診断薬。
- 2-アミノ-2-メチルプロピオン酸の前記重水素化誘導体は、2-アミノ-2-(CD3)-3,3,3-D3-プロピオン酸である、請求項1に記載の診断薬。
- 2-(N-メチルアミノ)-2-メチルプロピオン酸の前記重水素化誘導体は、2-メチルアミノ-2-(CD3)-3,3,3-D3-プロピオン酸、または2-(N-(CD3)アミノ)-2-メチルプロピオン酸、または2-(N-(CD3)アミノ)-2-(CD3)-3,3,3-D3-プロピオン酸である、請求項1に記載の診断薬。
- 2-アミノ-2-(CD3)-3,3,3-D3-プロピオン酸または2-アミノ-2-(CD2H)-3,3,3-D3-プロピオン酸または2-アミノ-2-(CD2H)-3,3,3-D3-プロピオン酸または2-アミノ-2-メチル-3,3,3-D3-プロピオン酸または2-アミノ-2-(CD2H)-3,3-D2-プロピオン酸または2-アミノ-2-(CDH2)-3,3-D2-プロピオン酸または2-アミノ-2-メチル-3,3-D2-プロピオン酸または2-アミノ-2-(CDH2)-3-D-プロピオン酸、または2-アミノ-2-メチル-3-D-プロピオン酸または2-メチルアミノ-2-(CD3)-3,3,3-D3-プロピオン酸または2-(N-(CD3)アミノ)-2-メチルプロピオン酸または2-(N-(CD3)アミノ)-2-(CD3)-3,3,3-D3-プロピオン酸から選択される、少なくとも2つの異なる2-アミノ-2-メチルプロピオン酸の重水素化誘導体または2-(N-メチルアミノ)-2-メチルプロピオン酸の重水素化誘導体の混合物を含む、請求項1に記載の診断薬。
- 2-アミノ-2-メチルプロピオン酸の重水素化誘導体、または2-(N-メチルアミノ)-2-メチルプロピオン酸の重水素化誘導体またはその薬学的に許容される塩は、酸素または窒素原子に結合する解離性水素原子を部分的または完全に置換する重水素原子を含有する、炭素原子に結合する重水素原子を含む、請求項1に記載の診断薬。
- 前記腫瘍学的病気は、乳がん、膠腫である、請求項1に記載の診断薬。
- 前記診断薬は対象に経口投与される、請求項1に記載の診断薬。
- 前記診断薬は対象に非経口投与される、請求項1に記載の診断薬。
- 前記診断薬は、対象の体重1kg当たり、0.25~1gの2-アミノ-2-メチルプロピオン酸の重水素化誘導体もしくは2-(N-メチルアミノ)-2-メチルプロピオン酸の重水素化誘導体もしくはその薬学的に許容される塩、または2-アミノ-2-メチルプロピオン酸の重水素化誘導体もしくは2-(N-メチルアミノ)-2-メチルプロピオン酸の重水素化誘導体またはその薬学的に許容される塩の混合物に相当する量で対象に投与されることを特徴とする、請求項1に記載の診断薬。
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US20030211036A1 (en) | 2002-05-07 | 2003-11-13 | Hadassa Degani | Method and apparatus for monitoring and quantitatively evaluating tumor perfusion |
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US10646594B2 (en) | 2009-06-19 | 2020-05-12 | Case Western Reserve University | Deuterated metabolic water precursor for detecting and treating diseased tissue |
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KR20200100079A (ko) | 2020-08-25 |
IL274787A (en) | 2020-07-30 |
WO2019103636A1 (ru) | 2019-05-31 |
IL274787B1 (en) | 2024-09-01 |
EP3714783B1 (en) | 2024-08-14 |
CA3083111A1 (en) | 2019-05-31 |
AU2017440592B2 (en) | 2022-06-30 |
EP3714783A1 (en) | 2020-09-30 |
EA202091298A1 (ru) | 2020-10-05 |
KR20220054445A (ko) | 2022-05-02 |
CN111655145B (zh) | 2023-12-26 |
US20200352472A1 (en) | 2020-11-12 |
AU2017440592A1 (en) | 2020-07-02 |
CA3083111C (en) | 2022-09-20 |
KR102522843B1 (ko) | 2023-04-18 |
SG11202004765XA (en) | 2020-06-29 |
EP3714783A4 (en) | 2021-05-19 |
KR102441674B1 (ko) | 2022-09-08 |
JP2021504472A (ja) | 2021-02-15 |
CN111655145A (zh) | 2020-09-11 |
US12082918B2 (en) | 2024-09-10 |
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