KR102235011B1 - 약물 함유 plga 미립구 및 그의 제조방법 - Google Patents
약물 함유 plga 미립구 및 그의 제조방법 Download PDFInfo
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- KR102235011B1 KR102235011B1 KR1020190047858A KR20190047858A KR102235011B1 KR 102235011 B1 KR102235011 B1 KR 102235011B1 KR 1020190047858 A KR1020190047858 A KR 1020190047858A KR 20190047858 A KR20190047858 A KR 20190047858A KR 102235011 B1 KR102235011 B1 KR 102235011B1
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- microspheres
- trametinib
- organic solvent
- aqueous solution
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- A61K31/495—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
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Abstract
Description
도 1a는 유제 제조 후 3.5 시간 경과하였을 때의 광학 현미경 사진이다. 바의 크기는 100 ㎛를 나타낸다.
도 1b 및 1c는 여과 건조한 후 최종적으로 얻은 미립자의 주사전자현미경(SEM; Scanning Electron Microscope) 사진이다.
도 2는 비교예에 따른 제조 방법에서 시간에 따른 유제/미립자의 상태를 관찰하여 촬영한 광학현미경 사진이다. (a)는 유제 제조 후 2.5 시간 경과시, (b)는 5 시간 경과시, (c)는 7 시간 경과시 촬영한 것이다. (d)는 (c)를 고배율로 찍은 것이다. (a), (b), (c)에서 바의 크기는 100 ㎛를, (d)에서 바의 크기는 20 ㎛를 나타낸다.
도 3은 실시예 1에 따라 0.35 g의 PLGA1과 50 mg의 트라메티닙 DMSO 용매화물을 사용하여 제조한 미립구의 입도 분포를 나타낸다.
도 4는 실시예 1에 따라 0.35 g의 PLGA1과 50 mg의 트라메티닙 DMSO 용매화물을 사용하여 제조한 미립구의 열질량분석 결과를 나타낸다.
도 5는 트라메티닙 DMSO 용매화물 50 mg과 PLGA4 (5050 DLG 2A) 0.35 g을 사용하여 제조한 미립구의 주사전자현미경 사진이다.
도 6은 트라메티닙 DMSO 용매화물 50 mg과 PLGA4 (5050 DLG 2A) 0.35 g을 사용하여 제조한 미립구의 시험관내 용출율을 나타낸 그래프이다.
도 7은 트라메티닙 DMSO 용매화물 50 mg과 PLGA2 (5050 DLG 2E) 0.35 g을 사용하여 제조한 미립구의 시험관내 용출율을 나타낸 그래프이다.
도 8은 트라메티닙 DMSO 용매화물 50 mg과 PLGA3 (Resomer R202H) 0.35 g을 사용하여 제조한 미립구의 시험관내 용출율을 나타낸 그래프이다.
기호 | 상품명 | 락티드:글리콜리드 비율 | 고유점도(inherent viscosity) (dL/g) | 분자량 (kDa) | 제조원 |
PLGA1 | 8515 DLG A2 | 85:15 | 0.20 | 15 | Evonik |
PLGA2 | 5050 DLG 2E | 50:50 | 0.21 | 22 | Lakeshore Biomaterials |
PLGA3 | Resomer R202H | 100:0 | 0.16-0.24 | Not specified | Evonik |
배치코드 | 배치 조성 | 약물 이론부하량 (%) |
약물 실제부하량 (%) |
봉입률 (%) | |
고분자 (mg) | 약물 (mg) | ||||
배치 1 | PLGA1, 250 | 50 | 16.667 | 16.753 | 100.5 |
배치 2 | PLGA1, 350 | 50 | 12.500 | 12.450 | 99.6 |
배치 3 | PLGA1, 450 | 50 | 10.000 | 9.8125 | 98.1 |
배치 4 | PLGA2, 350 | 50 | 12.500 | 11.602 | 92.8 |
배치 5 | PLGA3, 350 | 50 | 12.500 | 11.643 | 93.1 |
배치 6 | PLGA1, 250 | 50 | 16.667 | 16.255 | 97.5 |
배치 7 | PLGA3, 350 | 75 | 17.647 | 17.55 | 99.5 |
기호 | 상품명 | 락티드:글리콜리드 비율 | 고유점도(inherent viscosity) (dL/g) | 분자량 (kDa) | 제조원 |
PLGA2 | 5050 DLG 2E | 50:50 | 0.21 | 22 | Lakeshore Biomaterials |
PLGA3 | Resomer R202H | 100:0 | 0.16-0.24 | Not specified | Evonik |
PLGA4 | 5050 DLG 2A | 50:50 | 0.18 | 14 | Lakeshore Biomaterials |
Claims (17)
- a) 트라메티닙 또는 그의 디메틸술폭사이드(DMSO) 용매화물, 및 폴리글리콜라이드, 폴리락타이드, 및 폴리글리콜라이드와 폴리락타이드의 공중합체로 구성된 그룹 중에서 선택되는 적어도 하나의 생분해성 생체적합성 고분자를 메틸렌클로라이드에 용해시켜서 유기용매상을 제조하는 단계;
b) 상기 유기용매상을, 유기용매상 부피의 2 내지 20 배 부피의 수용액에 가하여 1차 유제를 제조하는 단계;
c) 상기 유제를, 단계 a)의 유기용매상 부피의 40 내지 100 배 부피의 수용액에 첨가하고 메틸렌클로라이드를 제거하여 미립구를 얻는 단계; 및
d) 미립구를 수거하는 단계
를 포함하는 트라메티닙을 함유하는 고분자 미립구의 제조 방법. - 삭제
- 제1항에 있어서, 트라메티닙이 트라메티닙 디메틸술폭사이드(DMSO) 용매화물인 방법.
- 제1항에 있어서, 단계 b) 및 c)에서 수용액이 폴리비닐알콜, 디도데실디메틸암모늄 브로마이드, 폴리비닐 피롤리돈, 솔루톨, 폴리소르베이트, 폴록사머, 카르보폴, 폴리에틸렌글리콜, 및 소듐 도데실설페이트에서 선택된 유화제 또는 안정화제를 포함하는 것인 방법.
- 제1항에 있어서, 단계 b)가 유기용매상을 수용액에 가한 후 10분 내지 1시간 동안 교반하는 것을 포함하는 방법.
- 제1항에 있어서, 단계 c)에서 메틸렌클로라이드의 제거가 교반, 온도의 증가 및 감압 중에서 선택된 하나 이상의 방법에 의하여 이루어지는 것인 방법.
- 제1항에 있어서, 단계 b)에서 유기용매상 대 수용액의 부피비가 1:10 내지 1:5인 방법.
- 제1항에 있어서, 단계 c)에서 수용액의 부피가 단계 a)의 유기용매상 부피의 70 내지 100 배인 방법.
- 제1항 및 제3항 내지 제8항 중 어느 한 항의 방법에 의해 제조된 트라메티닙 함유 고분자 미립구.
- 제9항의 미립구를 포함하는, 신경퇴행성 질환 치료용 비경구 서방성 제형.
- 트라메티닙 또는 그의 디메틸술폭사이드(DMSO) 용매화물, 및
폴리글리콜라이드와 폴리락타이드의 공중합체를 함유하는 고분자 미립구로서,
상기 폴리글리콜라이드와 폴리락타이드의 공중합체는 락티드 대 글리콜리드 단량체 비율이 85:15내지 40:60이고, 분자량이 1,000 내지 500,000 달톤인 것인 고분자 미립구. - 제11항에 있어서, 락티드 대 글리콜리드 단량체 비율이 75:25 내지 40:60인 고분자 미립구.
- 제12항에 있어서, 락티드 대 글리콜리드 단량체 비율이 50:50인 고분자 미립구.
- 제13항에 있어서, 폴리글리콜라이드와 폴리락타이드의 공중합체의 분자량이 10,000 내지 50,000 달톤인 고분자 미립구.
- 제11항에 있어서, 폴리글리콜라이드와 폴리락타이드의 공중합체의 말단기가 카르복실기인 고분자 미립구.
- 제11항에 있어서 미립구 중 트라메티닙 또는 그의 디메틸술폭시드 용매화물의 함량이 10 내지 20 중량%인 미립구.
- 제11항 내지 제16항 중 어느 한 항의 미립구 및 약제학적으로 허용되는 담체를 포함하는 비경구투여용 약제학적 조성물.
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