KR20200065106A - 단백질의 지속된 방출을 위한 생물분해성 약물 전달 시스템 - Google Patents
단백질의 지속된 방출을 위한 생물분해성 약물 전달 시스템 Download PDFInfo
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Abstract
Description
도면 1은 PLGA-베바시주맙 이식물 (제제 번호 1) (0.53 mm x 5 mm)로부터 베바시주맙의 시험관내 방출을 보여주고, 결합 활성이 방출 매체에서 1 개월의 배양 후 유지된다는 것을 지시하는 SEC-HPLC와 ELISA에 의한 필적하는 프로필을 보여준다.
도면 2는 중합체 조성을 변화시킴으로써 1 개월에서 2 개월로 지속 시간에서 증가를 증명하는, 2개의 상이한 PLGA-베바시주맙 이식물 (제제 번호 1과 2)로부터 베바시주맙의 시험관내 방출 (SEC-HPLC)을 보여준다.
도면 3은 중합체 조성을 변화시킴으로써 3 개월까지 지속 시간에서 증가를 증명하는, PLGA-베바시주맙 이식물 (제제 번호 3)로부터 베바시주맙의 시험관내 방출 (SEC-HPLC)을 보여준다.
도면 4는 2가지 상이한 유형의 PLGA 중합체 (RG752S 및 RG502H)를 방출을 조장하는 RG502H와 혼합함으로써 항체의 방출을 조정하는 능력을 증명하는, 3가지 상이한 PLGA-베바시주맙 이식물 (제제 번호 4, 5, 그리고 6)로부터 베바시주맙의 시험관내 방출 (SEC-HPLC)을 보여준다.
도면 5는 수용성 부형제, 예를 들면, 트레할로스의 함입에 의해 PLGA 이식물로부터 항체의 방출 속도를 변경하는 능력을 예증하는, 3개의 상이한 PLGA-베바시주맙 이식물 (제제 번호 4, 7, 그리고 8)로부터 베바시주맙의 시험관내 방출 (SEC-HPLC)을 보여준다.
도면 6은 약물 하중 (항체의 중량 퍼센트)이 이식물로부터 항체 방출의 속도에 어떻게 영향을 주는 지를 증명하는, 2개의 상이한 PLGA-베바시주맙 이식물 (제제 번호 1과 9)로부터 베바시주맙의 시험관내 방출 프로필 (SEC-HPLC)을 보여준다.
도면 7은 2와 4 주에서 베바시주맙 이식물에 의한 눈에서 VEGF 활성의 녹다운을 예증하는, PLGA-베바시주맙 이식물 (DDS: 제제 번호 1) 및 PLGA 위약 이식물이 외과적으로 배치되고 2주마다 VEGF 공격된 토끼의 유리질의 플루오레세인 이미지를 보여준다.
도면 8은 항체의 폭발-편평 방출을 증명하는, PLGA-베바시주맙 이식물 (제제 번호 10)로부터 베바시주맙의 시험관내 방출 프로필 (SEC-HPLC)을 보여준다.
Claims (14)
- 생물분해성 중합체 매트릭스 및 생물분해성 중합체 매트릭스와 연관된 단백질을 포함하는 압출된 생물분해성 안구내 이식물에 있어서, 생물분해성 중합체 매트릭스는 첫 번째 폴리(D,L-락티드-코-글리콜리드) 및 두 번째 폴리(D,L-락티드-코-글리콜리드)를 포함하고, 첫 번째 폴리(D,L-락티드-코-글리콜리드)는 에스테르 말단기 및 약 75:25의 D,L-락티드:글리콜리드 비율을 갖고, 그리고 두 번째 폴리(D,L-락티드-코-글리콜리드)는 산성 말단기 및 약 50:50의 D,L-락티드:글리콜리드 비율을 갖고, 여기서 이식물은 포유동물의 눈에서 이식물의 배치 후 약 90 일 동안 생물학적으로 활성 형태에서 단백질의 연속적 방출을 제공하는 것을 특징으로 하는 압출된 생물분해성 안구내 이식물.
- 청구항 2에 있어서, 첫 번째 폴리(D,L-락티드-코-글리콜리드) 대 두 번째 폴리(D,L-락티드-코-글리콜리드)의 중량 대 중량 비율은 약 90:10인 것을 특징으로 하는 압출된 생물분해성 안구내 이식물.
- 청구항 2에 있어서, 단백질은 안구 혈관신생, 맥락막 혈관신생, 황반 변성, 그리고 황반 부종으로 구성된 군에서 선택되는 안구 장애의 최소한 하나의 증상을 감소시키는데 치료적으로 효과적인 것을 특징으로 하는 압출된 생물분해성 안구내 이식물.
- 청구항 3에 있어서, 단백질은 혈관 내피 성장 인자 (VEGF) 또는 혈소판 유래 성장 인자 (PDGF)에 결합하는 항체, 항체 단편, DARPin, 또는 안티칼린인 것을 특징으로 하는 압출된 생물분해성 안구내 이식물.
- 청구항 4에 있어서, 단백질은 혈관 내피 성장 인자 (VEGF) 또는 혈소판 유래 성장 인자 (PDGF)에 결합하는 항체이고, 그리고 여기서 이식물은 포유동물의 눈에서 이식물의 배치 후 최소한 4 주 동안 포유동물의 눈에서 생체내에서 VEGF 또는 PDGF의 활성을 효과적으로 저해하거나 또는 감소시키는 것을 특징으로 하는 압출된 생물분해성 안구내 이식물.
- 중량으로 약 8.8%의 산성 말단기, 0.16-0.24 dl/g의 내재 점도 (25 ℃에서 클로로포름에서 0.1%), 그리고 약 50:50의 D,L-락티드:글리콜리드 비율을 갖는 폴리(D,L-락티드-코-글리콜리드)인 RG502H; 중량으로 약 79.7%의 에스테르 말단기, 0.16-0.24 dl/g의 내재 점도 (25 ℃에서 클로로포름에서 0.1%), 그리고 약 75:25의 D,L-락티드:글리콜리드 비율을 갖는 폴리(D,L-락티드-코-글리콜리드)인 RG752S; 중량으로 약 10%의 혈관 내피 성장 인자 (VEGF)에 결합하는 항체; 중량으로 약 0.1% 폴리소르베이트 20; 그리고 중량으로 약 1.4% 인산나트륨을 포함하는 압출된 생물분해성 안구내 이식물에 있어서, 상기 이식물은 포유동물의 눈에서 이식물의 배치 후 최소한 4 주 동안 포유동물의 눈에서 생체내에서 VEGF의 활성을 효과적으로 저해하거나 또는 감소시키는 것을 특징으로 하는 압출된 생물분해성 안구내 이식물.
- 안구내 이식물을 포유동물의 눈 내로 주사하기 위한 기구에 있어서, 상기 기구는 i) 세로축을 갖는 장방형 하우징; 그리고 ii) 상기 하우징으로부터 종적으로 확장하는 삽관을 포함하고, 상기 삽관은 근위 단부, 원위 예리한 단부, 그리고 그것을 통해서 확장하는 내강을 갖고, 상기 삽관은 청구항 1에 의해 규정된 바와 같은 이식물을 더욱 포함하고, 여기서 이식물은 삽관의 내강 내에 위치되는 것을 특징으로 하는 기구.
- 치료가 필요한 포유동물의 눈에서 안구 장애를 치료하기 위한 방법에 있어서, 상기 방법은 청구항 1에 따른 이식물을 포유동물의 눈에 배치하고, 따라서 안구 장애를 치료하는 것을 포함하는 것을 특징으로 하는 방법.
- 청구항 8에 있어서, 안구 장애는 안구 혈관신생, 맥락막 혈관신생, 황반 변성, 또는 황반 부종인 것을 특징으로 하는 방법.
- 청구항 9에 있어서, 이식물은 눈의 초자체에서 배치되는 것을 특징으로 하는 방법.
- 청구항 10에 있어서, 포유동물은 인간인 것을 특징으로 하는 방법.
- 청구항 11에 있어서, 이식물은 상기 이식물이 눈에서 배치된 후 최소한 약 4 주 동안 안구 장애를 효과적으로 치료하는 것을 특징으로 하는 방법.
- 청구항 12에 있어서, 이식물은 상기 이식물이 눈에서 배치된 후 약 90 일 동안 안구 장애를 효과적으로 치료하는 것을 특징으로 하는 방법.
- 포유동물의 눈에서 이식물의 배치 후 최소한 90 일 동안 생물학적으로 활성 형태에서 단백질의 연속적 방출을 제공하는 생물분해성 안구내 이식물을 만들기 위한 방법에 있어서, 상기 방법은 다음을 포함하는 것을 특징으로 하는 방법:
a) 하나 또는 그 이상의 단백질, 그리고 임의선택적으로, 하나 또는 그 이상의 부형제, 염, 완충제, 보존제, 고분자전해질, 또는 이들의 조합을 포함하는 건조 분말을 제공하고;
b) 건조 분말을 하나 또는 그 이상의 폴리(D,L-락티드-코-글리콜리드) 공중합체와 혼합하여 혼합물을 형성하고;
c) 혼합물을 60 ℃와 90 ℃ 사이의 온도에서 압출하여 필라멘트를 형성하고;
d) 필라멘트를 절단하여 눈의 안구 영역에서 배치에 적합한 0.5 내지 10 mm 길이에서 이식물을 형성한다.
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| JP2015532284A (ja) | 2015-11-09 |
| CN104812397A (zh) | 2015-07-29 |
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| TW201417831A (zh) | 2014-05-16 |
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| AU2013323553A1 (en) | 2015-04-23 |
| RU2015115358A (ru) | 2016-11-20 |
| US10653621B2 (en) | 2020-05-19 |
| JP6317748B2 (ja) | 2018-04-25 |
| EP2900250B1 (en) | 2018-11-07 |
| TWI663985B (zh) | 2019-07-01 |
| EP2900250A1 (en) | 2015-08-05 |
| ES2709351T3 (es) | 2019-04-16 |
| US20200261358A1 (en) | 2020-08-20 |
| RU2676102C2 (ru) | 2018-12-26 |
| KR20150058510A (ko) | 2015-05-28 |
| HK1213480A1 (en) | 2016-07-08 |
| AU2018247260A1 (en) | 2018-11-01 |
| AU2018247260B2 (en) | 2020-09-17 |
| CA2886081A1 (en) | 2014-04-03 |
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