Semaxanib (Not yet branded)

Targeted Therapy

US Experimental EU Experimental ES Not available IV 3 Clinical Trials
VEGFR-1 VEGFR-2

Description

Semaxanib (SU5416) is a small molecule tyrosine kinase inhibitor that targets vascular endothelial growth factor receptors (VEGFR). It was developed as an anti-angiogenic agent for the treatment of metastatic colorectal cancer, designed to block tumor blood vessel formation. The drug was tested in combination with standard chemotherapy regimens including fluorouracil/leucovorin and irinotecan for advanced colorectal cancer patients.

Mechanism of Action

Semaxanib selectively inhibits VEGFR-1 (Flt-1) and VEGFR-2 (KDR/Flk-1) tyrosine kinases, which are critical for angiogenesis and tumor vascularization. By blocking VEGF signaling pathways, the drug prevents the formation of new blood vessels that tumors require for growth and metastasis. This anti-angiogenic mechanism was intended to enhance the efficacy of conventional chemotherapy in colorectal cancer treatment.

Molecular Targets

Side Effects

Fatigue Headache Nausea Vomiting Abdominal pain Diarrhea Peripheral edema Hypertension

Not all side effects are listed. Side effects vary by individual. Always consult your oncologist.

Clinical Trials

NCT00006001 Phase 2
Archived
SU5416 in Treating Patients With Metastatic or Locally Recurrent Colorectal Cancer
United States
NCT00005818 Phase 1
Completed
SU5416 and Irinotecan in Treating Patients With Advanced Colorectal Cancer
United States
NCT00004252 Phase 3
Archived
Leucovorin and Fluorouracil With or Without SU5416 in Treating Patients With Metastatic Colorectal Cancer
United States