Drug intelligence / Profile preview

casdatifan + ivonescimab

Development stage
Unknown
Lead developer
Arcus Biosciences
Modality
Bispecific Antibodies → Multispecific Antibodies → Engineered Antibody Formats → Antibody-Based Therapeutics, Monoclonal Antibodies → Antibody-Based Therapeutics, Small Molecules
Administration
Intravenous, Oral
01

Overview

Casdatifan plus ivonescimab is an investigational combination regimen being evaluated for the treatment of clear cell renal cell carcinoma (ccRCC), including first-line metastatic disease. Casdatifan (AB521) is an oral, once-daily small-molecule inhibitor of hypoxia-inducible factor 2-alpha (HIF-2α) developed by Arcus Biosciences. Ivonescimab (SMT112/AK112) is an investigational humanized tetravalent bispecific antibody developed by Akeso and licensed to Summit Therapeutics, which simultaneously targets programmed cell death protein 1 (PD-1) and vascular endothelial growth factor (VEGF). Under a clinical trial collaboration announced in 2026, Arcus sponsors and conducts the combination study as a new cohort within its ARC-20 platform trial, with Summit supplying ivonescimab. The combination aims to provide a well-tolerated, tyrosine kinase inhibitor (TKI)-sparing treatment option for patients with advanced kidney cancer.

Other names
casdatifan plus ivonescimab
02

Targets

EPAS1 (Hypoxia-inducible factor 2-alpha)PDCD1 (Programmed cell death protein 1 receptor)VEGFA (Vascular endothelial growth factor A)

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