KR101654822B1 - Cd138 표적성 면역접합체 및 이의 용도 - Google Patents
Cd138 표적성 면역접합체 및 이의 용도 Download PDFInfo
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- KR101654822B1 KR101654822B1 KR1020167005226A KR20167005226A KR101654822B1 KR 101654822 B1 KR101654822 B1 KR 101654822B1 KR 1020167005226 A KR1020167005226 A KR 1020167005226A KR 20167005226 A KR20167005226 A KR 20167005226A KR 101654822 B1 KR101654822 B1 KR 101654822B1
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Abstract
Description
| nBT062의 예상되는 아미노산 서열 - 예상되는 nBT062 중쇄 서열(서열번호 1): 1 QVQLQQSGSE LMMPGASVKI SCKATGYTFS NYWIE WVKQR PGHGLEWIGE 51 ILPGTGRTIY NEKFKGKA TF TADISSNTVQ MQLSSLTSED SAVYYCAR RD 101 YYGNFYYAMD Y WGQGTSVTV SSASTKGPSV FPLAPCSRST SESTAALGCL 151 VKDYFPEPVT VSWNSGALTS GVHTFPAVLQ SSGLYSLSSV VTVPSSSLGT 201 KTYTCNVDHK PSNTKVDKRV ESKYGPPCPS CPAPEFLGGP SVFLFPPKPK 251 DTLMISRTPE VTCVVVDVSQ EDPEVQFNWY VDGVEVHNAK TKPREEQFNS 301 TYRVVSVLTV LHQDWLNGKE YKCKVSNKGL PSSIEKTISK AKGQPREPQV 351 YTLPPSQEEM TKNQVSLTCL VKGFYPSDIA VEWESNGQPE NNYKTTPPVL 401 DSDGSFFLYS RLTVDKSRWQ EGNVFSCSVM HEALHNHYTQKSLSLSLG(K) C-말단의 라이신은 제거(clipping)되기 쉽지만, 다소 불완전한 제거로인해 존재할 수 있다. 서열번호 1에는 괄호 (K)가 포함되어 있지 않는다. - 예상되는 nBT062 경쇄 서열(서열번호 2): 1 DIQMTQSTSS LSASLGDRVT ISC SASQGIN NYLN WYQQKP DGTVELLIYY 51 TSTLQSGVPS RFSGSGSGTD YSLTISNLEP EDIGTYYC QQ YSKLPRT FGG 101 GTKLEIKRTV AAPSVFIFPP SDEQLKSGTA SVVCLLNNFY PREAKVQWKV 151 DNALQSGNSQ ESVTEQDSKD STYSLSSTLT LSKADYEKHK VYACEVTHQG 201 LSSPVTKSFN RGEC |
| 크라벳 및 코티아의 일반적인 CDR 정의와 BT062의 예상되는 CDR의 비교 Kabat CDR 정의 nBT062 경쇄 CDR1: 잔기 24-34 CDR1: 잔기 24-34 CDR2: 잔기 50-56 CDR2: 잔기 50-56 CDR3: 잔기 89-97 CDR3: 잔기 89-97 중쇄 CDR1: 잔기 31-35 CDR1: 잔기 31-35 CDR2: 잔기 50-56 CDR2: 잔기 51-68 CDR3: 잔기 95-102 CDR3: 잔기 99-111 코티아 CDR 정의 nBT062 경쇄 CDR1: 잔기 26-32 CDR1: 잔기 24-34 CDR2: 잔기 50-52 CDR2: 잔기 50-56 CDR3: 잔기 91-96 CDR3: 잔기 89-97 중쇄 CDR1: 잔기 26-32 CDR1: 잔기 31-35 CDR2: 잔기 52-56 CDR2: 잔기 51-68 CDR3: 잔기 96-101 CDR3: 잔기 99-111 |
| TGD* (days) | % 활성** | |
| PBS | 0 | 0 |
| nBT062-SMCC-DM1 | 18 | 56 |
| BT062 | 32 | 100 |
| nBT062-SPP-DM1 | 13 | 40 |
도 2는 BT062를 화학식으로 나타낸 것이다.
도 3은 안사미톡신 P-3의 마이탄시놀 변환을 나타낸다(단순화를 위해 입체 화학은 생략됨).
도 4는 DM4의 합성 반응예를 나타낸 것이다.
도 5는 항체 접합(DM4에 nBT062)을 도식적으로 나타낸 것이다.
도 6은 OPM-2 세포에 대한 nBT062-SPDB-DM4, nBT062-SPP-DM1, nBT062-SMCC-DM1 및 nBT062 항체의 결합을 분석한 것이다. 다양한 농도의 nBT062 및 접합체를 세포에 제공하였고, 평균 형광을 FACS 분석으로 측정하였다.
도 7(A)-(D)는 MOLP-8 (CD138+) 및 BJAB (CD138-) 세포에 대한 nBT062-DMx 접합체의 시험관내 세포독성을 나타낸 것이다. 세포를 바닥이 평평한 플레이트에서 배양하고, 5일간 기재된 농도의 면역접합체와 함께 인큐베이션하였다. WST 시약을 추가의 3시간 동안 첨가하여, 세포 생활성을 측정하였다. (D)에서, nBT062-SPDB-DM4의 세포독성 활성을 블록킹 항체(1 μM nBT062)의 존재 또는 부재하에 분석하였다.
도 8은 MOLP-8 종양 세포 접종 후 시간(일) 경과에 따른 (A) PBS, (B) nBT062 항체, (C) 유리형 DM4 또는 (D) 비표적성 접합체 huC242-DM4 처리한 각 마우스에서의 종양 체적을 나타낸 것이다.
도 9는 MOLP-8 종양 세포 접종 후 시간(일) 경과에 따른 (A) PBS, (B) nBT062-SPDB-DM4, (C) B-B4-SPP-DM1 또는 (D) nBT062-SPP-DM1을 처리한 각 마우스에서의 종양 체적을 나타낸 것이다.
도 10은 CB.17 SCID 마우스에서의 MOLP-8 인간 다발성 골수종 이종이식체에 대한 접종 후 시간(일) 경과에 따른 평균 종양 체적(+/- SD)을 나타낸 것이다.
도 11A 및 B는 SCID 마우스에서 벌키 MOLP-8 종양 모델의 CD138+ MOLP-8 종양 세포에 대한 nBT062-DMx 항-종양 활성을 나타낸 것이다. 각 군에서 종양 체적은 평균(+/- SD)으로 나타내었다.
도 12는 SCIDhu/INA-6 모델에서 인간 골수 환경내 다발성 골수종에 대한 nBT062 함유성 DMx 접합체의 항-종양 효능을 나타낸 그래프이다. 다발성 골수종 세포(shuIL-6R)에 의해 생산되는 가용성 인간 IL-6 수용체를 종양 적하(tumor burden)의 인디케이터로 사용하였다. ▲: nBT062-SPP-DM1, ■: nBT062-SPDB-DM4; ◆: 비히클 대조군.
도 13은 시험관에서의 nBT062-SPDB-DM4 매개 무고체(bystander)의 사멸을 나타낸 것이다. CD138 양성 OPM2 세포 및 CD138 음성 Namawla 세포를 여러가지 농도의 nBT062-SPDB-DM4와 함께 인큐베이션하였고, 세포 생활성을 측정하였다. OD450 값은 세포 생활성 측정치이다.
| 항체 | 친화성 | |
| KD (nM) | 평균 KD (nM) | |
| nBT062 | 1.4 1.4 1.5 |
1.4 +/- 0.06 |
| B-B4 | 1.7 1.7 1.6 |
1.6 +/- 0.06 |
| nBT062-SPDB-DM4 | 1.9 1.9 1.9 |
1.9 +/- 0.00 |
| B-B4-SPP-DM1 | 2.6 2.7 2.6 |
2.6 +/- 0.06 |
| 테스트 물질 | 투여량(㎍/kg) | LCK | 투약 |
| PBS | 1회 투여 | ||
| nBT062-SMCC-DM1 | 450 | 0.85 | 1회 투여 |
| nBT062-SMCC-DM1 | 250 | 0.53 | 1회 투여 |
| nBT062-SMCC-DM1 | 100 | 0 | 1회 투여 |
| nBT062-SPDB-DM4 | 450 | 2.89 | 1회 투여 |
| nBT062-SPDB-DM4 | 250 | 1.05 | 1회 투여 |
| nBT062-SPDB-DM4 | 100 | 0.39 | 1회 투여 |
| nBT062-SPP-DM1 | 450 | 0.8 | 1회 투여 |
| nBT062-SPP-DM1 | 250 | 0.39 | 1회 투여 |
| nBT062-SPP-DM1 | 100 | 0.2 | 1회 투여 |
| nBT062-SMCC-DM1 | 250 | 2.1 | 5주간 매주 투여 |
Claims (57)
- 면역접합체로서,
(a) CD138에 대한 조작된(engineered) 표적 항체, 및
(b) 작용자 분자를 포함하며,
상기 조작된 표적 항체는 서열번호 1의 서열과 서열 동일성이 90% 이상인 중쇄와 서열번호 2의 서열과 서열 동일성이 90% 이상인 경쇄를 포함하고,
(a) 중쇄 가변부가 서열번호 1의 31번에서 35번 (CDR1), 51번에서 68번 (CDR2) 및 99번에서 111번 (CDR3)의 아미노산 잔기들을 포함하고,
(b) 경쇄 가변부가 서열번호 2의 24번에서 34번 (CDR1), 50번에서 56번 (CDR2) 및 89번에서 97번 (CDR3)의 아미노산 잔기들을 포함하고,
상기 중쇄의 불변부가 IgG4 이소타입 불변 영역이고,
상기 작용자 분자가 튜불린 중합 저해제이고, 및
상기 작용자 분자가 이황화 결합을 포함하는 절단성 링커를 통해 상기 조작된 표적 항체에 부착되는 것을 특징으로 하는, 면역접합체. - 제1항에 있어서, 상기 작용자 분자가 상기 표적 항체와 상기 작용자 분자 사이에 입체적 방해를 제공하는 것을 특징으로 하는 면역접합체.
- 제1항에 있어서, 상기 면역접합체는 KD 수치가 2.6nM 미만인 것을 특징으로 하는 면역접합체.
- 제1항에 있어서, 상기 작용자 분자가 하나 이상의 마이탄시노이드인 것을 특징으로 하는 면역접합체.
- 제4항에 있어서, 상기 하나 이상의 마이탄시노이드가 DM1, DM3 또는 DM4인 것을 특징으로 하는 면역접합체.
- 제5항에 있어서, 상기 작용자 분자가 DM4인 것을 특징으로 하는 면역접합체.
- 제1항에 있어서, 상기 조작된 표적 항체가
(a) 서열번호 1의 123번에서 448번의 아미노산 잔기들, 또는
(b) 서열번호 2의 108번 내지 214번의 아미노산 잔기들을 포함하는 것인, 면역접합체. - 제1항에 있어서, 상기 조작된 표적 항체가
(a) 서열번호 1의 123번에서 448번의 아미노산 잔기들, 또는
(b) 서열번호 2의 108번 내지 214번의 아미노산 잔기들 각각과,
이들의 돌연변이를 더 포함하고,
상기 돌연변이는 상기 조작된 표적 항체를 안정화시키는 것으로서, IgG4 의 CH2 영역 내 류신에서 글루탐산으로의 돌연변이 및 IgG4 힌지 코어 내 세린에서 프롤린으로의 돌연변이로 이루어진 군으로부터 선택되는 것인,
면역접합체. - 제1항에 있어서,
상기 중쇄가 서열번호 1의 1번에서 122번째 아미노산 잔기들을 포함하고,
상기 경쇄가 서열번호 2의 1번에서 107번째 아미노산 잔기들을 포함하는 것을 특징으로 하는, 면역접합체. - 제1항에 있어서,
상기 중쇄가 서열번호 1과 98% 이상의 서열 동일성을 가지며,
상기 경쇄가 서열번호 2와 98% 이상의 서열 동일성을 가지는 것을 특징으로 하는 면역접합체. - 제1항에 있어서,
상기 중쇄가 서열번호 1의 아미노산 서열을 가지며,
상기 경쇄가 서열번호 2의 아미노산 서열을 가지는 것을 특징으로 하는 면역접합체. - 제1항 내지 제11항 중 어느 한 항에 따른 면역접합체를 포함하는, 방광 이행성 세포 암종 치료용 약학 조성물.
- 제1항 내지 제11항 중 어느 한 항에 따른 면역접합체를 포함하는, 다발성 골수종 치료용 약학 조성물.
- 제1항 내지 제11항 중 어느 한 항에 따른 면역접합체를 종양 세포의 증식을 저해, 지연 또는 예방하는 유효량으로 상기 세포의 배양물에 투여하는 단계를 포함하는,
세포 배양물에서 종양 세포의 증식을 저해, 지연 또는 예방하는 시험관내 (in vitro) 방법. - 제14항에 있어서, 상기 유효량은 CD138 발현성 종양 세포에서 세포 사멸 또는 계속적인 세포 주기 정지를 유도하는 것을 특징으로 하는 시험관내 방법.
- 제14항에 있어서,
상기 세포 배양물에서 상기 세포는 암 환자로부터 수득된 것이며,
상기 면역접합체가 상기 유효량으로 투여된 후, 상기 세포 배양물의 세포는 상기 암 환자에게 재이식될 것임을 특징으로 하는 시험관내 방법. - 제14항에 있어서, 상기 세포 배양물에서 세포는 CD138을 발현하는 세포를 포함하는 혈액암 (hematologic malignancy) 또는 고형 종양을 앓고 있는 암 환자로부터 분리된 것을 특징으로 하는 시험관내 방법.
- 제16항에 있어서, 상기 암 환자는 다발성 골수종, 난소암, 신장암, 담낭암, 유방암, 전립선암, 폐암, 대장암, 호지킨 림프종, 비호지킨 림프종, 만성 림프성 백혈병(CLL), 급성 림프모구성 백혈병(ALL), 급성 골수모구성 백혈병(AML) 또는 고형 조직 육종 중 한가지를 앓고 있는 것을 특징으로 하는 시험관내 방법.
- 제18항에 있어서, 상기 환자는 다발성 골수종을 앓고 있는 것을 특징으로 하는 시험관내 방법.
- 제1항 내지 제11항 중 어느 한 항에 따른 면역접합체를 포함하는,
CD138 종양 세포를 포함하는 종양의 증식 또는 상기 종양의 종양 세포의 전이를, 필요로 하는 환자에게서, 저해, 지연 또는 예방하기 위한 약학 조성물. - 제20항에 있어서, 상기 환자는 CD138을 발현하는 세포를 포함하는 혈액암 또는 고형 종양을 앓고 있는 것을 특징으로 하는 약학 조성물.
- 제21항에 있어서, 상기 환자는 다발성 골수종, 난소암, 신장암, 담낭암, 유방암, 전립선암, 폐암, 대장암, 호지킨 림프종, 비호지킨 림프종, 만성 림프성 백혈병(CLL), 급성 림프모구성 백혈병(ALL), 급성 골수모구성 백혈병(AML) 또는 고형 조직 육종 중 한가지 질환을 앓고 있는 것을 특징으로 하는 약학 조성물.
- 제22항에 있어서, 상기 질환은 다발성 골수종인 것을 특징으로 하는 약학 조성물.
- 제20항에 있어서, 상기 면역접합체는
(i) 5 mg/m2 내지 300 mg/m2의 1회 투약; 또는
(ii) 5 mg/m2 내지 300 mg/m2의 2회 이상의 투약으로, 선택적으로 매시간 간격, 매일 간격, 매주 간격으로 또는 이의 조합에 의한 간격으로 투여될 것임을 특징으로 하는 약학 조성물. - 제1항 내지 제11항 중 어느 한 항에 따른 면역접합체를 포함하는,
종양의 증식 또는 악성 종양 세포의 전이를, 필요한 환자에서, 저해, 지연 또는 예방하기 위한 약학 조성물로서,
상기 환자는, 하나 이상의 세포독성 물질 또는 방사선을 종양 크기를 감소시키는데 유효한 양으로 치료받는 환자인 것을 특징으로 하는, 약학 조성물. - 제25항에 있어서,
(i) 상기 면역접합체는 상기 하나 이상의 세포독성 물질 또는 방사선과 2가지 연속 치료 요법으로 연속적으로 투여되게 되거나,
(ii) 상기 면역접합체는 상기 하나 이상의 세포독성 물질과 공동-투여되게 될 것임을 특징으로 하는 약학 조성물. - 제25항에 있어서,
(i) 상기 세포독성 물질이 멜팔란(melphalan), 빈크리스틴(vincristine), 독소루비신(doxorubicin), 덱사메타손(dexamethasone), 사이클로포스파미드(cyclophosphamide), 에토포시드(etoposide), 사이타라빈(cytarabine), 시스플라틴(cisplatin), 탈리도미드(thalidomide), 프레드니손(prednisone), 보르테조밉(bortezomib), 레날리도미드(lenalidomide), 소라페닙(sorafenib), 로미뎁신(romidepsin) 또는 이의 조합이거나; 또는
(ii) 상기 세포독성 물질이 항체 기반인 것을 특징으로 하는 약학 조성물. - 제1항 내지 제11항 중 어느 한 항에 따른 면역접합체, 및 하나 이상의 약학적으로 허용가능한 부형제를 포함하는, 종양의 증식 또는 종양 세포의 전이를 저해, 지연 또는 예방하기 위한 약학 조성물.
- 개별 용기에, 종양의 증식 또는 종양 세포의 전이를 저해, 지연 또는 예방하기 위해 조합하여 사용하기 위한 약학 조성물을 포함하는 키트로서,
하나의 용기에는 제28항에 따른 약학 조성물이 유효량으로 포함되어 있으며, 다른 분리된 용기에는 종양의 증식 또는 종양 세포의 전이를 저해, 지연 또는 예방하기 위한, 유효량의 다른 물질, 및 1종 이상의 약학적으로 허용가능한 부형제를 포함하는 제2 약학 조성물이 포함되어 있는 것을 특징으로 하는, 키트. - 제29항에 있어서, 상기 다른 물질은 세포독성 물질임을 특징으로 하는, 키트.
- 제29항에 있어서, 상기 제2 약학 조성물내 상기 물질이 멜팔란, 빈크리스틴, 독소루비신, 덱사메타손, 사이클로포스파미드, 에토포시드, 사이타라빈, 시스플라틴, 탈리도미드, 프레드니손, 보르테조밉, 레날리도미드, 소라페닙, 로미뎁신 또는 이의 조합으로 이루어진 군으로부터 선택되거나, 또는 항체를 기반으로 하는 것을 특징으로 하는 키트.
- 제1항 내지 제11항 중 어느 한 항에 따른 면역접합체를 포함하는,
CD138 종양 세포를 포함하는 종양의 증식 또는 상기 종양의 종양 세포의 전이를, 필요한 개체에서, 저해, 지연 또는 예방하기 위한 약학 조성물로서,
상기 면역접합체의 CD138에 대한 조작된 표적 항체가, 입체적으로 방해를 받는 작용자 분자에, 절단성 링커를 통해 부착되어 있으며,
상기 면역접합체가 방해받지 않는 대응체 (counterpart)에 비해 10% 또는 그 보다 높은 수준을 초과하는 종양 증식 저해 활성을 제공할 수 있는 것을 특징으로 하는, 약학 조성물. - 제32항에 있어서, 상기 면역접합체에 대한 비-절단성 링커를 포함하는 방해받지 않는 대응체의 종양 증식 저해 활성이, 절단성 링커를 포함하는 방해받지 않는 대응체의 종양 증식 저해 활성 보다, 5% 이상 높은 것을 특징으로 하는 약학 조성물.
- 제32항에 있어서,
(i) 상기 절단성 링커가 이황화 결합을 포함하거나;
(ii) 상기 작용자 분자가 DM4이거나; 또는
(iii) 상기 면역접합체가 5 mg/m2 내지 300 mg/m2의 양으로 1회 이상의 투약으로 개체에게 투여될 것임을 특징으로 하는 약학 조성물. - 제32항에 있어서,
상기 면역접합체는 상기 개체에게 다중 투약으로 투여될 것이며,
그렇게 투여된 면역접합체는 방해받지 않는 대응체 보다 20% 또는 그 보다 높은 수준으로 더 높은 종양의 증식 저해 활성을 제공할 수 있는 것을 특징으로 하는 약학 조성물. - 제35항에 있어서,
(i) 상기 절단성 링커가 이황화 결합을 포함하거나;
(ii) 상기 작용자 분자가 DM4이거나;
(iii) 상기 다중 투약이 5시간, 6시간, 7시간, 8시간, 9시간, 10시간, 11시간, 12시간, 13시간, 14시간, 15시간, 16시간, 17시간, 18시간, 19시간, 20시간, 21시간, 22시간, 23시간, 1일, 2일, 3일, 4일, 5일, 6일, 7일, 1주, 2주, 3주, 4주, 5주, 6주, 7주 또는 8주의 간격으로 투여되게 될 것이거나; 또는
(iv) 상기 면역접합체가 5 mg/m2 내지 300 mg/m2의 복수 투약으로 투여될 것임을 특징으로 하는 약학 조성물. - CD138 발현성 종양 세포와 직접 또는 간접 접촉하는 세포의 수를 줄이는 시험관내 방법으로서,
상기 종양 세포 및 상기 종양 세포와 직접 또는 간접 접촉하는 세포에게, 제1항 내지 제11항 중 어느 한 항에 따른 1종 이상의 면역접합체를, CD138 발현성 종양 세포와 직접 또는 간접 접촉하는 세포의 수를 줄이는 유효량으로 투여하는 단계를 포함하는 것을 특징으로 하는 시험관내 방법. - 삭제
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| PCT/EP2008/068267 WO2009080830A1 (en) | 2007-12-26 | 2008-12-23 | Immunoconjugates targeting cd138 and uses thereof |
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