KR20200007778A - 혈장 중 형광 화합물을 제조 및 분석하는 방법 - Google Patents
혈장 중 형광 화합물을 제조 및 분석하는 방법 Download PDFInfo
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Abstract
Description
도 2는 대조 블랭크(control blank) (1% 혈장/PBS)와 1% 혈장/PBS 중 3.3 ng/mL의 MB-102의 HPLC 크로마토그램 (HPLC chromatogram)의 오버레이(overlay)이다.
도 3a 및 도 3b는 두 개의 상이한 샘플에 대한 1% 혈장/PBS 중 0.4 ng/mL의 MB-102의 신호/노이즈(signal/noise), USP 테일링 팩터(USP Tailing Factor), 및 USP 평판 계수(USP plate count)를 도시한다.
도 4는 1X PBS로 스파이킹된(spiked) MB-102의 피크 순도(peak purity)이다.
도 5는 표준 샘플 제조(standard sample preparation) 후의 혈장 샘플 중 MB-102의 피크 순도이다.
도 6은 GMP 위탁 실험실(GMP contract lab)에서 테스트된 환자로부터 수득된 혈장 중 MB-102 대(versus) 내부 평가 (in-house evaluation)에서 테스트된 이의 상관관계(correlation)의 그래프이다.
도 7은 임상시험으로부터의 12명의 환자에 대한 MB-102의 약동학 분석(pharmacokinetic analysis)이다.
도 8a, 8b, 및 8c는 임상시험에서 세 명의 환자에 대한 MB-102 및 이오헥솔의 제거율을 비교하는 그래프이다.
도 9는 직접 희석(direct dilution) 또는 단백질 침전을 이용하여 테스트된 혈장 중 MB-102의 상관관계의 그래프이다.
도 10은 내부에서 테스트된 샘플 대(versus) GMP 위탁 실험실에 테스트된 샘플에 대해서 집적 희석에 의해 테스트된 혈장 중 MB-102 농도의 상관관계의 그래프이다.
도 11은 직접 희석에 의해 테스트된 용혈(hemolysis)을 보이는 혈장 샘플(50 mg/dL 내지 100 mg/dL의 헤모글로빈 수준) 중 MB-102 농도와 단백질 침전에 의해 테스트된 이의 상관관계의 그래프이다.
도 12는 직접 희석에 의해 테스트된 용혈을 보이는 혈장 샘플(100 mg/dL 내지 250 mg/dL의 헤모글로빈 수준) 중 MB-120 농도와 단백질 침전에 의해 테스트된 이의 상관관계의 그래프이다.
Claims (20)
- 혈장 중 형광 화합물의 양을 측정하는 방법으로서, 상기 방법은
혈장 샘플을 수집하는 단계;
상기 혈장 샘플을 적어도 하나의 용매로 희석시키는 단계; 및
상기 희석된 샘플을 HPLC에 의해 분석하여 상기 혈장 중 형광 화합물의 양을 측정하는 단계;를 포함하되,
상기 혈장 샘플은 HPLC 분석 전에 건조되지 않고, 내부 표준(internal standard)이 상기 샘플에 더해지지 않는 것인, 형광 화합물의 양을 측정하는 방법.
- 제1항에 있어서,
상기 형광 화합물은 하기 화학식 I의 화합물이거나, 또는 이의 약제학적으로 허용가능한 염인, 형광 화합물의 양을 측정하는 방법.
화학식 I
상기 화학식 I에서,
X1 및 X2 각각은 독립적으로 -CO2R1, -CONR1R2, -CO(AA) 또는 -CONH(PS)이고;
Y1 및 Y2 각각은 -NR1R2 및 하기 화학식 II로 이루어진 군으로부터 독립적으로 선택되며;
화학식 II
상기 화학식 II에서,
Z1은 단일 결합, -CR1R2-, -O-, -NR1-, -NCOR1-, -S-, -SO-, 또는 -SO2-이고,
R1 내지 R2 각각은 H, -CH2(CHOH)aH, -CH2(CHOH)aCH3, -CH2(CHOH)aCO2H, -(CHCO2H)aCO2H, -(CH2CH2O)cH, -(CH2CH2O)cCH3, -(CH2)aSO3H, -(CH2)aSO3 -, -(CH2)aSO2H, -(CH2)aSO2 -, -(CH2)aNHSO3H, -(CH2)aNHSO3 -, -(CH2)aNHSO2H, -(CH2)aNHSO2 -, -(CH2)aPO4H3, -(CH2)aPO4H2 -, -(CH2)aPO4H2 -, -(CH2)aPO4 3 -, -(CH2)aPO3H2, -(CH2)aPO3H-, 및 -(CH2)aPO3 2 -로 이루어진 군으로부터 독립적으로 선택되며;
AA는 펩티드 또는 아미드 결합에 의해 함께 연결된, 천연 아미노산 및 비-천연 아미노산으로 이루어진 군으로부터 선택된 하나 이상의 아미노산을 포함하는 펩티드 사슬이며, 각각의 AA는 서로 동일하거나 상이할 수 있고;
PS는 글리코시드 결합(glycosidic linkage)에 의해 연결된 하나 이상의 단당류 유닛(monosaccharide unit)을 포함하는 설페이트화 다당류 사슬 (sulfated polysaccharide chain) 또는 비-설페이트화 다당류 사슬(non-sulfated polysaccharide chain)이며;
'a'는 1 내지 10 사이의 수이고, 'c'는 1 내지 100 사이의 수이며, 'm'과 'n' 각각은 독립적으로 숫자 1 내지 3 사이의 수이다.
- 제1항에 있어서,
상기 적어도 하나의 용매는 수성 용매, 비-수성 용매 및 이들의 임의의 혼합물로 이루어진 군으로부터 선택되는 것인, 형광 화합물의 양을 측정하는 방법.
- 제4항에 있어서,
상기 적어도 하나의 용매는 PBS인, 형광 화합물의 양을 측정하는 방법.
- 제1항에 있어서,
상기 혈장 샘플은 혈액 용혈(blood hemolysis)의 징후(sign)를 보이는 것인, 형광 화합물의 양을 측정하는 방법.
- 혈장 중 형광 화합물의 양을 측정하는 방법으로서, 상기 방법은
혈장 샘플을 수집하는 단계;
상기 샘플에 적어도 하나의 용매를 추가하여 혈장 단백질이 침전되도록 하는 단계;
침전된 혈장 단백질을 상기 샘플로부터 제거하는 단계; 및
침전된 혈장 단백질이 제거된 샘플을 HPLC에 의해 분석하여 상기 혈장 중 형광 화합물의 양을 측정하는 단계;를 포함하되,
상기 샘플은 HPLC 분석 전에 건조되지 않고, 내부 표준(internal standard)이 상기 샘플에 더해지지 않는 것인, 형광 화합물의 양을 측정하는 방법.
- 제7항에 있어서,
상기 침전된 혈장 단백질을 제거하는 단계는 상기 샘플을 원심분리시키는 단계를 포함하고,
상기 원심분리된 샘플은 상청액과 펠렛을 가지며,
상기 상청액은 HPLC 분석 전에 적어도 하나의 용매로 희석되는 것인, 형광 화합물의 양을 측정하는 방법.
- 제7항에 있어서,
상기 적어도 하나의 용매는 메탄올, PBS 및 이들의 임의의 혼합물로 이루어진 군으로부터 선택되는 것인, 형광 화합물의 양을 측정하는 방법.
- 제7항에 있어서,
상기 형광 화합물은 하기 화학식 I의 화합물이거나, 또는 이의 약제학적으로 허용가능한 염인, 형광 화합물의 양을 측정하는 방법.
화학식 I
상기 화학식 I에서,
X1 및 X2 각각은 독립적으로 -CO2R1, -CONR1R2, -CO(AA) 또는 -CONH(PS)이고;
Y1 및 Y2 각각은 -NR1R2 및 하기 화학식 II로 이루어진 군으로부터 독립적으로 선택되며;
화학식 II
상기 화학식 II에서,
Z1은 단일 결합, -CR1R2-, -O-, -NR1-, -NCOR1-, -S-, -SO-, 또는 -SO2-이고,
R1 내지 R2 각각은 H, -CH2(CHOH)aH, -CH2(CHOH)aCH3, -CH2(CHOH)aCO2H, -(CHCO2H)aCO2H, -(CH2CH2O)cH, -(CH2CH2O)cCH3, -(CH2)aSO3H, -(CH2)aSO3 -, -(CH2)aSO2H, -(CH2)aSO2 -, -(CH2)aNHSO3H, -(CH2)aNHSO3 -, -(CH2)aNHSO2H, -(CH2)aNHSO2 -,-(CH2)aPO4H3, -(CH2)aPO4H2 -, -(CH2)aPO4H2 -, -(CH2)aPO4 3 -, -(CH2)aPO3H2, -(CH2)aPO3H-, 및 -(CH2)aPO3 2 -로 이루어진 군으로부터 독립적으로 선택되고;
AA는 펩티드 또는 아미드 결합에 의해 함께 연결된, 천연 아미노산 및 비-천연 아미노산으로 이루어진 군으로부터 선택된 하나 이상의 아미노산을 포함하는 펩티드 사슬이며, 각각의 AA는 서로 동일하거나 상이할 수 있고;
PS는 글리코시드 결합(glycosidic linkage)에 의해 연결된 하나 이상의 단당류 유닛(monosaccharide unit)을 포함하는 설페이트화 다당류 사슬 (sulfated polysaccharide chain) 또는 비-설페이트화 다당류 사슬(non-sulfated polysaccharide chain)이고;
'a'는 1 내지 10 사이의 수이며, 'c'는 1 내지 100 사이의 수이고, 'm'과 'n' 각각은 독립적으로 숫자 1 내지 3 사이의 수이다.
- 제7항에 있어서,
상기 적어도 하나의 용매는 수성 용매, 비-수성 용매 및 이들의 임의의 혼합물로 이루어진 군으로부터 선택되는 것인, 형광 화합물의 양을 측정하는 방법.
- 제12항에 있어서,
상기 수성 용매는 인산염 완충 식염수(phosphate buffered saline)이고, 상기 비-수성 용매는 메탄올인, 형광 화합물의 양을 측정하는 방법.
- 제7항에 있어서,
상기 혈장 샘플은 혈액 용혈의 징후를 보이는 것인, 형광 화합물의 양을 측정하는 방법.
- 제1항에 있어서,
상기 혈장은 인간, 동물 또는 시험관내 연구(in vitro study)로부터 수득되는 것인, 형광 화합물의 양을 측정하는 방법.
- 제1항에 있어서,
상기 용매는 인산염(phosphate), 아세트산염(acetate), 중탄산염(bicarbonate), 탄산염(carbonate), 포름산염(formate), 글루콘산염(gluconate), 젖산염(lactate), 시트르산염(citrate), 술폰산염(sulfonate), 암모늄(ammonium), 구아니디늄(guanidinium), HEPES, 카코딜산염(cacodylate), Tris, tris-HCl, 말레산염(maleate), 붕산염(borate), 글리시네이트(glycinate), 숙신산염(succinate), PIPES 및 이들의 임의의 혼합물로 이루어진 군으로부터 선택된 수성 버퍼(aqueous buffer)인, 형광 화합물의 양을 측정하는 방법.
- 제1항에 있어서,
상기 용매는 메탄올(methanol), 에탄올(ethanol), 에틸렌 글리콜(ethylene glycol), 에틸 아세테이트(ethyl acetate), 헥산(hexane), 클로로포름(chloroform), DMF, DMSO, 아세트산(acetic acid), 아세톤(acetone), 아세토니트릴(acetonitrile), 부탄올(butanol), 사염화 탄소(carbon tetrachloride), 디에틸렌 글리콜(diethylene glycol), 디에틸 에테르(diethyl ether), DME, 에틸렌 글리콜(ethylene glycol), 메틸렌 클로라이드(methylene chloride), 니트로메탄(nitromethane), 석유 에테르(petroleum ether), 프로판올(propanol), 피리딘(pyridine), 톨루엔(toluene), MTBE, 트리에틸아민(triethylamine), 크실렌(xylene), 및 벤젠(benzene)으로 이루어진 군으로부터 선택된 비-수성 용매인, 형광 화합물의 양을 측정하는 방법.
- 제7항에 있어서,
상기 혈장은 인간, 동물 또는 시험관내 연구로부터 수득되는 것인, 형광 화합물의 양을 측정하는 방법.
- 제7항에 있어서,
상기 용매는 인산염, 아세트산염, 중탄산염, 탄산염, 포름산염, 글루콘산염, 젖산염, 시트르산염, 술폰산염, 암모늄, 구아니디늄, HEPES, 카코딜산염, Tris, tris-HCl, 말레산염, 붕산염, 글리시네이트, 숙신산염, PIPES 및 이들의 임의의 혼합물로 이루어진 군으로부터 선택된 수성 버퍼인, 형광 화합물의 양을 측정하는 방법.
- 제7항에 있어서,
상기 용매는 메탄올, 에탄올, 에틸렌 글리콜, 에틸 아세테이트, 헥산, 클로로포름, DMF, DMSO, 아세트산, 아세톤, 아세토니트릴, 부탄올, 사염화 탄소, 디에틸렌 글리콜, 디에틸 에테르, DME, 에틸렌 글리콜, 메틸렌 클로라이드, 니트로메탄, 석유 에테르, 프로판올, 피리딘, 톨루엔, MTBE, 트리에틸아민, 크실렌, 및 벤젠으로 이루어진 군으로부터 선택된 비-수성 용매인, 형광 화합물의 양을 측정하는 방법.
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| US12428382B2 (en) * | 2021-03-31 | 2025-09-30 | Medibeacon Inc. | Purification of substituted diaminopyrazine dicarboxylic acids |
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| KR20220021024A (ko) | 2022-02-21 |
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| US20190154697A1 (en) | 2019-05-23 |
| BR112019021044A2 (pt) | 2020-05-12 |
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| SG11201909366XA (en) | 2019-11-28 |
| AU2018369913B2 (en) | 2020-08-20 |
| EP3713577A4 (en) | 2021-08-18 |
| EP3713577A1 (en) | 2020-09-30 |
| PH12019502373A1 (en) | 2020-07-13 |
| AU2018369913A1 (en) | 2019-10-17 |
| MY188418A (en) | 2021-12-08 |
| CN110461332A (zh) | 2019-11-15 |
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