JPWO2020128527A5 - - Google Patents

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JPWO2020128527A5
JPWO2020128527A5 JP2021536064A JP2021536064A JPWO2020128527A5 JP WO2020128527 A5 JPWO2020128527 A5 JP WO2020128527A5 JP 2021536064 A JP2021536064 A JP 2021536064A JP 2021536064 A JP2021536064 A JP 2021536064A JP WO2020128527 A5 JPWO2020128527 A5 JP WO2020128527A5
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Japan
Prior art keywords
referred
seq
peptide ligand
ligand according
sar
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Japanese (ja)
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JP2022514687A (en
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Priority claimed from GBGB1820969.2A external-priority patent/GB201820969D0/en
Priority claimed from GBGB1904622.6A external-priority patent/GB201904622D0/en
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Priority claimed from PCT/GB2019/053680 external-priority patent/WO2020128527A1/en
Publication of JP2022514687A publication Critical patent/JP2022514687A/en
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Description

本発明の以下の選択された二環式ペプチドリガンドを上述のSPR結合アッセイで試験した。結果は、表3に示されている:
表3:本発明の選択された二環式ペプチドリガンドのPD-L1SPR結合アッセイデータ

Figure 2020128527000001
本件出願は、以下の態様の発明を提供する。
(態様1)
少なくとも2つのループ配列によって隔てられた少なくとも3つのシステイン残基を含むポリペプチド及び該ポリペプチドのシステイン残基と共有結合を形成する芳香族分子スキャフォールドを含み、その結果、少なくとも2つのポリペプチドループが該分子スキャフォールド上に形成される、PD-L1に特異的なペプチドリガンド。
(態様2)
前記ループ配列が2、3、又は6つのアミノ酸を含む、態様1記載のペプチドリガンド。
(態様3)
(化1)
Figure 2020128527000002
(ここで、X 1 は、任意のアミノ酸残基を表し、C i 、C ii 、及びC iii は、それぞれ、第一、第二、及び第三のシステイン残基を表す)
:から選択されるアミノ酸配列、又はその医薬として許容し得る塩を含む、態様1又は態様2記載のペプチドリガンド。
(態様4)
前記ループ配列が、その第一のものが6つのアミノ酸からなり、その第二のものが2つのアミノ酸からなる2つのループ配列によって隔てられた3つのシステイン残基を含み、該ペプチドリガンドが、
(化2)
Figure 2020128527000003
(ここで、C i 、C ii 、及びC iii は、それぞれ、第一、第二、及び第三のシステイン残基を表す)
:から選択されるアミノ酸配列、又はその医薬として許容し得る塩を含む、態様1~3のいずれか一項記載のペプチドリガンド。
(態様5)
前記ループ配列が、その第一のものが6つのアミノ酸からなり、その第二のものが3つのアミノ酸からなる2つのループ配列によって隔てられた3つのシステイン残基を含み、該ペプチドリガンドが、
(化3)
Figure 2020128527000004
(ここで、X 1 は、任意のアミノ酸残基を表し、C i 、C ii 、及びC iii は、それぞれ、第一、第二、及び第三のシステイン残基を表す)
:から選択されるアミノ酸配列、又はその医薬として許容し得る塩を含む、態様1~3のいずれか一項記載のペプチドリガンド。
(態様6)
前記
(化4)
Figure 2020128527000005
のペプチドリガンドが、配列番号1~3:
(化5)
Figure 2020128527000006
(ここで、C i 、C ii 、及びC iii は、それぞれ、第一、第二、及び第三のシステイン残基を表す)
のいずれか1つから選択されるアミノ酸配列、又はその医薬として許容し得る塩、
例えば:
A-(配列番号1)-A(本明細書において、BCY507と称される);
A-(配列番号1と称される)-A[Sar] 6 (その蛍光化誘導体は、以後、BCY543と称される);
A-(配列番号2と称される)-A(本明細書において、BCY508と称される);
[B-Ala][Sar] 5 A-(配列番号2と称される)-A(その蛍光化誘導体は、以後、BCY544と称される);
A-(配列番号3と称される)-A(本明細書において、BCY509と称される);
[B-Ala][Sar] 5 A-(配列番号3と称される)-A(その蛍光化誘導体は、以後、BCY545と称される);及び
A-(配列番号3と称される)-A[Sar] 6 (その蛍光化誘導体は、以後、BCY546と称される)
:から選択されるアミノ酸配列を含む、態様3又は態様5記載のペプチドリガンド。
(態様7)
前記
(化6)
Figure 2020128527000007
のペプチドリガンドが、配列番号4~6:
(化7)
Figure 2020128527000008
(ここで、C i 、C ii 、及びC iii は、それぞれ、第一、第二、及び第三のシステイン残基を表す)
のいずれか1つから選択されるアミノ酸配列、又はその医薬として許容し得る塩、
例えば:
A-(配列番号4)-A(本明細書において、BCY514と称される);
A-(配列番号4と称される)-A[Sar] 6 (その蛍光化誘導体は、以後、BCY550と称される);
G[Sar] 5 A-(配列番号4と称される)-A(その蛍光化誘導体は、以後、BCY583と称される);
A-(配列番号5と称される)-A(本明細書において、BCY515と称される);
G[Sar] 5 A-(配列番号5と称される)-A(その蛍光化誘導体は、以後、BCY584と称される);
A-(配列番号6と称される)-A(本明細書において、BCY516と称される);及び
G[Sar] 5 A-(配列番号6と称される)-A(その蛍光化誘導体は、以後、BCY585と称される)
:から選択されるアミノ酸配列を含む、態様3又は態様5記載のペプチドリガンド。
(態様8)
前記ペプチドリガンド
(化8)
Figure 2020128527000009
が、
A-(配列番号9)-A[Sar] 6 (その蛍光化誘導体は、以後、BCY551と称される)
:であるアミノ酸配列を含む、態様3記載のペプチドリガンド。
(態様9)
表1~3のいずれかに掲載されているペプチドである、態様1又は態様2記載のペプチドリガンド。
(態様10)
前記分子スキャフォールドが1,3,5-トリス(ブロモメチル)ベンゼン(TBMB)である、態様1~9のいずれか一項記載のペプチドリガンド。
(態様11)
前記医薬として許容し得る塩が、遊離酸又はナトリウム、カリウム、カルシウム、アンモニウム塩から選択される、態様1~10のいずれか一項記載のペプチドリガンド。
(態様12)
前記PD-L1がヒトPD-L1である、態様1~11のいずれか一項記載のペプチドリガンド。
(態様13)
1以上のエフェクター及び/又は官能基にコンジュゲートされた、態様1~12のいずれか一項記載のペプチドリガンドを含む薬物コンジュゲート。
(態様14)
1以上の細胞毒性剤にコンジュゲートされた、態様1~12のいずれか一項記載のペプチドリガンドを含む薬物コンジュゲート。
(態様15)
態様1~12のいずれか一項記載のペプチドリガンド又は態様13又は態様14記載の1以上の薬物コンジュゲートを医薬として許容し得る賦形剤との組合せで含む医薬組成物。
(態様16)
PD-L1によって媒介される疾患又障害の予防、抑制、又は治療において使用するための、態様1~12のいずれか一項記載のペプチドリガンド又は態様13又は態様14記載の薬物コンジュゲート。
The following selected bicyclic peptide ligands of the invention were tested in the SPR binding assay described above. Results are shown in Table 3:
Table 3: PD-L1SPR binding assay data for selected bicyclic peptide ligands of the invention.
Figure 2020128527000001
The present application provides inventions of the following aspects.
(Aspect 1)
A polypeptide comprising at least three cysteine residues separated by at least two loop sequences and an aromatic molecular scaffold that forms a covalent bond with the cysteine residues of the polypeptide, such that at least two polypeptide loops are formed. A peptide ligand specific for PD-L1 formed on said molecular scaffold.
(Aspect 2)
2. The peptide ligand of embodiment 1, wherein said loop sequence comprises 2, 3, or 6 amino acids.
(Aspect 3)
(Chem. 1)
Figure 2020128527000002
(where X 1 represents any amino acid residue and C i , C ii , and C iii represent the first, second, and third cysteine residues, respectively)
A peptide ligand according to embodiment 1 or embodiment 2, comprising an amino acid sequence selected from: or a pharmaceutically acceptable salt thereof.
(Aspect 4)
said loop sequence comprising three cysteine residues separated by two loop sequences, the first of which consists of 6 amino acids and the second of which consists of 2 amino acids;
(Chemical 2)
Figure 2020128527000003
(where C i , C ii and C iii represent the first, second and third cysteine residues respectively)
4. A peptide ligand according to any one of embodiments 1-3, comprising an amino acid sequence selected from: or a pharmaceutically acceptable salt thereof.
(Aspect 5)
said loop sequence comprising three cysteine residues separated by two loop sequences, the first of which consists of 6 amino acids and the second of which consists of 3 amino acids;
(Chemical 3)
Figure 2020128527000004
(where X 1 represents any amino acid residue and C i , C ii , and C iii represent the first, second, and third cysteine residues, respectively)
4. A peptide ligand according to any one of embodiments 1-3, comprising an amino acid sequence selected from: or a pharmaceutically acceptable salt thereof.
(Aspect 6)
Said
(Chem. 4)
Figure 2020128527000005
are peptide ligands of SEQ ID NOs: 1-3:
(Chem. 5)
Figure 2020128527000006
(where C i , C ii and C iii represent the first, second and third cysteine residues respectively)
or a pharmaceutically acceptable salt thereof,
for example:
A-(SEQ ID NO: 1)-A (referred to herein as BCY507);
A-(referred to as SEQ ID NO: 1)-A[Sar] 6 (the fluorescent derivative of which is hereinafter referred to as BCY543);
A-(referred to as SEQ ID NO: 2)-A (referred to herein as BCY508);
[B-Ala][Sar] 5 A-(referred to as SEQ ID NO: 2)-A (the fluorescent derivative of which is hereinafter referred to as BCY544);
A-(referred to as SEQ ID NO: 3)-A (referred to herein as BCY509);
[B-Ala][Sar] 5 A-(referred to as SEQ ID NO: 3)-A (the fluorescent derivative of which is hereinafter referred to as BCY545); and
A-(referred to as SEQ ID NO: 3)-A[Sar] 6 (its fluorescent derivative is hereinafter referred to as BCY546)
A peptide ligand according to embodiment 3 or embodiment 5, comprising an amino acid sequence selected from:
(Aspect 7)
Said
(Chemical 6)
Figure 2020128527000007
are peptide ligands of SEQ ID NOS: 4-6:
(Chem. 7)
Figure 2020128527000008
(where C i , C ii and C iii represent the first, second and third cysteine residues respectively)
or a pharmaceutically acceptable salt thereof,
for example:
A-(SEQ ID NO: 4)-A (referred to herein as BCY514);
A-(referred to as SEQ ID NO: 4)-A[Sar] 6 (the fluorescent derivative of which is hereinafter referred to as BCY550);
G[Sar] 5 A-(referred to as SEQ ID NO: 4)-A (the fluorescent derivative of which is hereinafter referred to as BCY583);
A-(referred to as SEQ ID NO: 5)-A (referred to herein as BCY515);
G[Sar] 5 A-(referred to as SEQ ID NO: 5)-A (the fluorescent derivative of which is hereinafter referred to as BCY584);
A-(referred to as SEQ ID NO: 6)-A (referred to herein as BCY516); and
G[Sar] 5 A-(referred to as SEQ ID NO: 6)-A (the fluorescent derivative of which is hereinafter referred to as BCY585)
A peptide ligand according to embodiment 3 or embodiment 5, comprising an amino acid sequence selected from:
(Aspect 8)
said peptide ligand
(Chemical 8)
Figure 2020128527000009
but,
A-(SEQ ID NO: 9)-A[Sar] 6 (the fluorescent derivative of which is hereafter referred to as BCY551)
A peptide ligand according to embodiment 3, comprising an amino acid sequence of:
(Aspect 9)
A peptide ligand according to embodiment 1 or embodiment 2, which is a peptide listed in any of Tables 1-3.
(Mode 10)
10. The peptide ligand according to any one of embodiments 1-9, wherein said molecular scaffold is 1,3,5-tris(bromomethyl)benzene (TBMB).
(Aspect 11)
11. The peptide ligand according to any one of embodiments 1-10, wherein said pharmaceutically acceptable salt is selected from the free acid or sodium, potassium, calcium, ammonium salts.
(Aspect 12)
12. The peptide ligand according to any one of embodiments 1-11, wherein said PD-L1 is human PD-L1.
(Aspect 13)
A drug conjugate comprising a peptide ligand according to any one of aspects 1-12 conjugated to one or more effector and/or functional groups.
(Aspect 14)
A drug conjugate comprising the peptide ligand of any one of embodiments 1-12 conjugated to one or more cytotoxic agents.
(Aspect 15)
A pharmaceutical composition comprising a peptide ligand according to any one of aspects 1-12 or one or more drug conjugates according to aspect 13 or aspect 14 in combination with a pharmaceutically acceptable excipient.
(Aspect 16)
15. A peptide ligand according to any one of aspects 1-12 or a drug conjugate according to aspect 13 or aspect 14 for use in the prevention, suppression or treatment of a disease or disorder mediated by PD-L1.

JP2021536064A 2018-12-21 2019-12-23 Bicyclic peptide ligand specific for PD-L1 Pending JP2022514687A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GBGB1820969.2A GB201820969D0 (en) 2018-12-21 2018-12-21 Bicyclic peptide ligands specific for pd-l
GB1820969.2 2018-12-21
GB1904622.6 2019-04-02
GBGB1904622.6A GB201904622D0 (en) 2019-04-02 2019-04-02 Bicyclic peptide ligands specific for pd-l1
PCT/GB2019/053680 WO2020128527A1 (en) 2018-12-21 2019-12-23 Bicyclic peptide ligands specific for pd-l1

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WO2019025811A1 (en) 2017-08-04 2019-02-07 Bicycletx Limited Bicyclic peptide ligands specific for cd137
TW202118770A (en) 2019-07-30 2021-05-16 英商拜西可泰克斯有限公司 Heterotandem bicyclic peptide complex
US20240197897A1 (en) 2021-01-08 2024-06-20 Bicycle TX Limited Heterotandem bicyclic peptide complexes
US20240325554A1 (en) 2021-01-11 2024-10-03 Bicycle TX Limited Methods for treating cancer

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EP1452868A2 (en) 2003-02-27 2004-09-01 Pepscan Systems B.V. Method for selecting a candidate drug compound
CA2595902C (en) 2005-01-24 2017-08-22 Pepscan Systems B.V. Binding compounds, immunogenic compounds and peptidomimetics of the beta-3 hairpin loop of cystine-knot growth factors
ES2383191T3 (en) 2008-02-05 2012-06-19 Medical Research Council Methods and compositions
SI3215518T1 (en) * 2014-10-29 2021-08-31 Bicyclerd Limited Bicyclic peptide ligands specific for mt1-mmp
GB201607827D0 (en) * 2016-05-04 2016-06-15 Bicycle Therapeutics Ltd Bicyclic peptide-toxin conjugates specific for MT1-MMP
EP3572429A4 (en) * 2017-01-23 2021-04-07 Suzhou Alphamab Co., Ltd Pd-l1 binding polypeptide or composite
GB2562721A (en) * 2017-05-16 2018-11-28 Fastbase Solutions Ltd Kits, methods and their uses for detecting cell-cell interactions in a sample
KR20200139236A (en) * 2018-04-04 2020-12-11 바이사이클티엑스 리미티드 Heterotandem Bicyclic Peptide Complex

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