DrugBank ID:

DB08889

Description:

Carfilzomib is an injectable antineoplastic agent (IV only). Chemically, it is a modified tetrapeptidyl epoxide and an analog of epoxomicin. It is also a selective proteasome inhibitor. FDA approved on July 20, 2012. [DrugBank]

Targets:

Proteasome subunit beta type-5 (Humans); Proteasome subunit beta type-8 (Humans); Proteasome subunit beta type-1 (Humans); Proteasome subunit beta type-9 (Humans); Proteasome subunit beta type-2 (Humans); Proteasome subunit beta type-10 (Humans) [DrugBank]

Pharmacodynamics:

Intravenous carfilzomib administration resulted in suppression of proteasome chymotrypsin-like activity when measured in blood 1 hour after the first dose. On Day 1 of Cycle 1, proteasome inhibition in peripheral blood mononuclear cells (PBMCs) ranged from 79% to 89% at 15 mg/m2, and from 82% to 83% at 20 mg/m2. In addition, carfilzomib administration resulted in inhibition of the LMP2 and MECL1 subunits of the immunoproteasome ranging from 26% to 32% and 41% to 49%, respectively, at 20 mg/m2. Proteasome inhibition was maintained for ≥ 48 hours following the first dose of carfilzomib for each week of dosing. Resistance against carfilzomib has been observed and although the mechanism has not been confirmed, it is thought that up-regulation of P-glycoprotein may be a contributing factor. Furthermore, studies suggest that carfilzomib is more potent than bortezomib. [DrugBank]

SMILES:

CC(C)C[C@H](NC(=O)[C@H](CCc1ccccc1)NC(=O)CN1CCOCC1)C(=O)N[C@@H](Cc1ccccc1)C(=O)N[C@@H](CC(C)C)C(=O)[C@@]1(C)CO1

2D structures:  

3D structures: