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Title:
ANTIBODY-DRUG CONJUGATE PRECURSOR AND INTERMEDIATE FOR SYNTHESIS THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/163234
Kind Code:
A1
Abstract:
The present invention provides: a method for improving the stability of an antibody-drug conjugate in vivo; and a conjugate precursor for producing a stabilized antibody-drug conjugate. More specifically, the present invention provides: an antibody-drug conjugate precursor represented by general formula (I): [wherein Z represents a reactive group capable of reacting with a functional group present in an antibody or a modified antibody; D represents an antitumor drug residue having such a structure that one hydrogen atom or one hydroxyl group is removed from an arbitrary position in an antitumor drug molecule, an analogue of the antitumor drug molecule or a derivative of the antitumor drug molecule or the analogue; and L represents a linker that links Z to D; wherein at least one of D and L has at least one lactonyl group as a substituent or a protecting group at an arbitrary position] or a salt thereof; an intermediate for the synthesis of the antibody-drug conjugate precursor or the salt thereof, or a salt of the intermediate; and others.

Inventors:
TSUZAKI YASUNORI (JP)
MIZUNO GEN (JP)
KASHIWAGI TAKAMASA (JP)
TANAKA MASAYUKI (JP)
SHIMIZU HAYATO (JP)
NONOUCHI SHINPEI (JP)
MATSUSHITA TAKASHI (JP)
KIMURA TOMIO (JP)
Application Number:
PCT/JP2023/007434
Publication Date:
August 31, 2023
Filing Date:
February 28, 2023
Export Citation:
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Assignee:
UBE CORP (JP)
International Classes:
A61K47/68; A61K31/337; A61K31/357; A61K31/407; A61K31/4375; A61K31/4745; A61K31/475; A61K31/513; A61K31/537; A61K31/5513; A61K31/5517; A61K31/675; A61K31/7034; A61K31/7036; A61K31/706; A61K38/07; A61K38/14; A61K39/395; A61K45/00; A61P35/00; C07K2/00; C07K14/435; C07K16/30; C07K19/00
Domestic Patent References:
WO2014061277A12014-04-24
Foreign References:
US20200115326A12020-04-16
Other References:
XIAO, DIAN ET AL.: "A bifunctional molecule-based strategy for the development of theranostic antibody-drug conjugate", THERANOSTICS, vol. 11, no. 6, 2021, pages 2550 - 2563, XP093087170, DOI: 10.7150/thno.51232
SU, ZHENG ET AL.: "Antibody-drug conjugates: Recent advances in linker chemistry", ACTA PHARMACEUTICA SINICA B, vol. 11, no. 12, 2021, pages 3889 - 3907, XP093087740, DOI: 10.1016/j.apsb.2021.03.042
LIU, LIANQ I ET AL.: "Synthesis and evaluation of highly releasable and structurally stable antibody-SN-38-conjugates", DRUG DELIVERY, vol. 28, no. 1, 2021, pages 2603 - 2617, XP093087176, DOI: 10.1080/10717544.2021.2008053
LAU, ULAND Y. ET AL.: "Lactone Stabilization is Not a Necessary Feature for Antibody Conjugates of Camptothecins", MOL. PHARMACEUTICS., vol. 15, 2018, pages 4063 - 4072, XP055618626, DOI: 10.1021/acs.molpharmaceut.8b00477
MONDAL, DEBOPROSAD ET AL.: "Improved Methodology for the Synthesis of a Cathepsin B Cleavable Dipeptide Linker, Widely Used in Antibody-Drug Conjugate Research", TETRAHEDRON LETTERS, vol. 59, 2018, pages 3594 - 3599, XP055732113, DOI: 10.1016/j.tetlet.2018.08.021
ANAMI YASUAKI, YAMAZAKI CHISATO M., XIONG WEI, GUI XUN, ZHANG NINGYAN, AN ZHIQIANG, TSUCHIKAMA KYOJI: "Glutamic acid–valine–citrulline linkers ensure stability and efficacy of antibody–drug conjugates in mice", NATURE COMMUNICATIONS, vol. 9, no. 1, XP093084676, DOI: 10.1038/s41467-018-04982-3
DI, LI ET AL.: "Development and application of high throughput plasma stability assay for drug discovery", INTERNATIONAL JOURNAL OF PHARMACEUTICS, vol. 297, 2005, pages 110 - 119, XP027624001
Attorney, Agent or Firm:
YAMAO, Norihito et al. (JP)
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