KR102120510B1 - 지속 작용성 토포아이소머라제 i 저해제를 이용하는 유방암 치료의 효능을 평가 및 예측하기 위한 방법 - Google Patents
지속 작용성 토포아이소머라제 i 저해제를 이용하는 유방암 치료의 효능을 평가 및 예측하기 위한 방법 Download PDFInfo
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- KR102120510B1 KR102120510B1 KR1020157013659A KR20157013659A KR102120510B1 KR 102120510 B1 KR102120510 B1 KR 102120510B1 KR 1020157013659 A KR1020157013659 A KR 1020157013659A KR 20157013659 A KR20157013659 A KR 20157013659A KR 102120510 B1 KR102120510 B1 KR 102120510B1
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Abstract
Description
도 2a, 도 2b 및 도 2c는 실시예 1에 기재한 바와 같이 처리한 개개 환자에 대한 시간 경과에 따른 통상적인 CA27.29 프로파일의 예이며, 여기서 관찰된 값은 원에 대응하고, 개개의 예측된 CA27.29 수준은 실선에 대응한다.
도 3은 실시예 3에 기재한 모델에 기반한 q14d와 q21d 투약 요법 둘 다에 대한 초기 처리 후 시간 경과에 따른 SN-38 농도(ng/mL)의 예상 플롯이며, 여기서 실선은 q14d 요법을 나타내고, 파선은 q21d 요법을 나타낸다.
도 4a 내지 도 4d는 실시예에 기재한 바와 같은 각각의 반응 그룹에서 개개 환자에 대한 예시적인 지속 작용성 토포아이소머라제-I 저해제의 초기 투약 후 시간 경과에 따른 혈청 CA27.29에서의 관찰된 변화(%)를 설명하는 플롯이다. 도 4a는 RECIST CR 또는 PR을 지니는 환자(n=15)에 대응하고; 도 4b는 6 개월 이상의 RECIST SD를 지니는 환자(n=5)에 대응하며; 도 4c는 6 개월 미만의 RECIST SD를 지니는 환자(n=11)에 대응하고; 도 4d는 RECIST PD를 지니는 환자(n=10)에 대응한다.
도 5는 실시예 1 내지 실시예 3에 기재한 바와 같은 예시적인 지속 작용성 토포아이소머라제-I 저해제로 처리한 유방암 환자에 대한 RECIST 반응 기준에 기반한 CA27.29에서의 관찰된 최대 감소의 플롯이다.
파라미터 | 전체 |
전체 반응률(ORR) | 29% (N=66) |
무진행 생존율(PFS) | 4.6 개월(5.3 개월, q21d) |
전체 생존율(OS) | 10.3 개월(13.1 개월 q21d) |
전체 최고 CA27.29 반응(적어도 1 회 관찰에서 기준으로부터의 50% 또는 더 양호한 감소) | 36% (16/45) |
최소 | 25% 사분위수 | 중앙값 | 75% 사분위수 | 최대 | |
q14d(N=26) | 13 | 38.8 | 89 | 149.5 | 3383 |
q21d(N=22) | 14 | 25 | 61.5 | 242 | 669 |
총 (N=48) | 13 | 27 | 78 | 184 | 3383 |
Claims (23)
- 유방암을 갖는 대상체에서 SN-38, 이리노테칸, 또는 그의 약제학적으로 허용가능한 염으로부터 선택되는 지속 작용성(long-acting) 토포아이소머라제-I 저해제를 이용하는 치료에 대한 반응을 평가하기 위한 방법으로서, 상기 방법은
(i) 혈장, 혈청 및 혈액으로부터 선택되는 대상체의 체액 샘플 중의 종양 마커의 수준을 결정하여 종양 마커의 참조 수준을 제공하는 단계(상기 종양 마커는 CA27.29임),
(ii) 주어진 투약 스케줄에 대한 지속 작용성 토포아이소머라제-I 저해제의 투약량을 투여함으로써 적어도 2 주의 지속시간에 걸쳐 상기 대상체를 치료한 후에 상기 대상체의 체액 샘플 중에서 상기 종양 마커의 수준을 결정하는 단계(상기 체액은 단계 (i)에서와 동일함),
(iii) 단계 (ii)에서의 상기 종양 마커의 수준과, 지속 작용성 토포아이소머라제-I 저해제를 이용하는 치료에 대한 유방암의 반응과의 상관관계를 구하는 단계(단계 (ii)에서의 종양 마커의 수준이 단계 (i)에서의 참조 수준으로부터 변화되지 않거나 감소된 경우에 치료에 대하여 양성 반응인 것으로 결정되며, 단계 (ii)에서의 종양 마커의 수준이 단계 (i)에서의 참조 수준으로부터 증가된 경우에 치료에 대하여 음성 반응인 것으로 결정됨)
를 포함하는 방법. - 제1항에 있어서, 상기 치료 단계로부터 초래되는 SN-38에 대한 상기 유방암의 노출은 상기 대상체에서 상기 종양 마커의 수준 및 상기 치료 요법의 효능과 상관관계가 있는 방법.
- 제1항에 있어서, 상기 지속 작용성 토포아이소머라제-I 저해제는 하나 이상의 수용성 중합체에 대한 방출가능한 공유 부착에 의해 변형된 SN-38을 포함하는 방법.
- 제1항에 있어서, 상기 지속 작용성 토포아이소머라제-I 저해제는 하나 이상의 수용성 중합체에 대한 방출가능한 공유 부착에 의해 변형된 이리노테칸을 포함하는 방법.
- 제3항 또는 제4항에 있어서, 상기 하나 이상의 수용성 중합체는 폴리에틸렌글리콜을 포함하는 방법.
- 제5항에 있어서, 상기 지속 작용성 토포아이소머라제-I 저해제는 펜타에리트리톨릴-4-암-(폴리에틸렌글리콜-1-메틸렌-2 옥소-비닐아미노 아세테이트-연결-이리노테칸) 또는 그의 약제학적으로 허용가능한 염인 방법.
- 제1항 내지 제4항 중 어느 한 항에 있어서, 단계 (i)에서, 상기 종양 마커의 수준은 상기 지속 작용성 토포아이소머라제-I 저해제를 이용하는 치료 전에 결정되는 방법.
- 제1항 내지 제4항 중 어느 한 항에 있어서, 단계 (i)에서의 CA27.29 종양 마커의 참조 수준은 정상 기준 수준보다 상승되는 방법.
- 제9항에 있어서, 상기 CA27.29의 참조 수준은 38 U/ml 초과인 방법.
- 제1항 내지 제4항 중 어느 한 항에 있어서, 상기 치료의 지속기간은 적어도 3 주인 방법.
- 제11항에 있어서, 상기 치료의 지속기간은 적어도 6 주인 방법.
- 제12항에 있어서, 상기 치료의 지속기간은 적어도 12 주인 방법.
- 제1항 내지 제4항 중 어느 한 항에 있어서, 상기 종양 마커의 수준은 면역분석에 의해 결정되는 방법.
- 제1항 내지 제4항 중 어느 한 항에 있어서, 상기 종양 마커의 수준에 있어서 6 주까지 적어도 25%의 감소는 대상체에서 적어도 4 개월의 무진행 생존율과 양의 상관관계를 나타내는 방법.
- 제1항 내지 제4항 중 어느 한 항에 있어서, 단계 (ii)는 지속 작용성 토포아이소머라제 저해제 I을 이용하는 추가적인 치료 후 또는 치료의 중단 후에 선택적으로 반복되는 방법.
- 제1항 내지 제4항 중 어느 한 항에 있어서, 단계 (iii)에서 치료에 대한 음의 반응을 결정하는 경우에, 단계 (ii)에서의 투약량 또는 투약 스케줄 중 하나 또는 둘 다는 변경되는 방법.
- 전이성 유방암으로 진단된 대상체에서 지속 작용성 토포아이소머라제-I 저해제를 이용하는 치료의 효능을 예측하기 위해 혈액, 혈청, 및 혈장으로부터 선택되는 체액 중에서의 CA27.29 종양 마커의 수준을 이용하는 방법으로서, 상기 지속 작용성 토포아이소머라제-I 저해제는 지속 작용성 이리노테칸, 지속 작용성 SN-38, 또는 그의 약제학적으로 허용가능한 염으로부터 선택되는 것인 방법.
- 제1항 내지 제4항, 및 제18항 중 어느 한 항에 있어서, 상기 방법 전에, 상기 대상체는 상기 유방암에 대해 탁산계 치료에 반응하지 않았던 방법.
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