To provide an antitumor drug having excellent therapeutic effect, which is excellent in terms of antitumor effect and safety. Provided is an antibody-drug conjugate in which an antitumor compound represented by the following formula is conjugated to an anti-HER3 antibody via a linker having a structure represented by the formula: -L1-L2-LP-NH-(CH2)n1-La-(CH2)n2-C(=O)- or -L1-L2-LP- (the anti-HER3 antibody is connected to the terminal of L1, the antitumor compound is connected to the carbonyl group of -(CH2)n2-C(=O)- moiety or the C terminal of LP, with the nitrogen atom of the amino group at position 1 as a connecting position).
Trastuzumab conjugates consisting of exatecan derivatives were prepared and their biological activities and physicochemical properties were evaluated. The ADCs showed strong efficacy and a low aggregation rate. The exatecan derivatives were covalently connected via a peptidyl spacer (Gly-Gly-Phe-Gly), which is assumed to be stable in circulation, and were cleaved by lysosomal enzymes following ADC
[EN] ANTIBODY CONJUGATES OF TOLL-LIKE RECEPTOR AGONISTS<br/>[FR] CONJUGUÉS D'ANTICORPS D'AGONISTES DE RÉCEPTEURS DE TYPE TOLL
申请人:SILVERBACK THERAPEUTICS INC
公开号:WO2020056192A1
公开(公告)日:2020-03-19
Imidazoquinoline compounds of formula (IA), conjugates, and pharmaceutical compositions for use in the treatment of disease, such as cancer, are disclosed herein. The disclosed imidazoquinoline compounds are useful, among other things, in the treating of cancer and modulating TLR7. Additionally, imidazoquinoline compounds incorporated into a conjugate with an antibody construct are described herein.
ANTIBODY-DRUG CONJUGATES CONTAINING AN ANTI-MESOTHELIN ANTIBODY AND USES THEREOF
申请人:DEVELOPMENT CENTER FOR BIOTECHNOLOGY
公开号:US20210386866A1
公开(公告)日:2021-12-16
The present disclosure provides an immunoconjugate includes an antibody comprising an antigen-binding fragment that specifically binds to an epitope in mesothelin, N-glycan binding domain and an N-glycan; a linker linking to the N-glycan; and a payload A and a payload B conjugated to the linker, respectively; wherein the payload A and the payload B are the same or different. A pharmaceutical composition comprises the immunoconjugate and a method for treating cancer are also provided in the disclosure.