Overview
11. DESCRIPTION Fruquintinib is a kinase inhibitor with the chemical name 6-[(6,7-dimethoxyquinazolin-4-yl)oxy]- N ,2-dimethyl-1-benzofuran-3-carboxamide. Its molecular formula is C 21 H 19 N 3 O 5 , which corresponds to a molecular weight of 393.39 g/mol. Fruquintinib has the following chemical structure: Fruquintinib is a white to off-white powder with a dissociation constant (pK a ) of 2.78.
Mechanism of Action
12. CLINICAL PHARMACOLOGY 12.1. Mechanism of Action Fruquintinib is a small molecule kinase inhibitor of vascular endothelial growth factor receptors (VEGFR)-1, -2, and -3 with IC 50 values of 33, 35, and 0.5 nM, respectively. In vitro studies showed fruquintinib inhibited VEGF-mediated endothelial cell proliferation and tubular formation. In vitro and in vivo studies showed fruquintinib inhibited VEGF-induced VEGFR-2 phosphorylation. In vivo studies showed fruquintinib inhibited tumor growth in a tumor xenograft mouse model of colon cancer. 12.2. Pharmacodynamics Fruquintinib exposure-response relationships and the time course of pharmacodynamic response are unknown.
Indications
- 1. INDICATIONS AND USAGE FRUZAQLA is indicated for the treatment of adult patients with metastatic colorectal cancer (mCRC) who have been previously treated with fluoropyrimidine‑, oxaliplatin‑, and irinotecan‑based chemotherapy, an anti‑VEGF therapy, and, if RAS wild‑type and medically appropriate, an anti-EGFR therapy. FRUZAQLA is a kinase inhibitor indicated for the treatment of adult patients with metastatic colorectal cancer (mCRC) who have been previously treated with fluoropyrimidine‑, oxaliplatin‑, and irinotecan‑based chemotherapy, an anti‑VEGF therapy, and, if RAS wild‑type and...
Common Doses
- 5 mg
- 4 mg
- 3 mg
Dosage
2. DOSAGE AND ADMINISTRATION The recommended dose of FRUZAQLA is 5 mg orally once daily, with or without food for the first 21 days of each 28-day cycle. ( 2.1 ) 2.1. Recommended Dosage The recommended dose of FRUZAQLA is 5 mg orally once daily for the first 21 days of each 28-day cycle until disease progression or unacceptable toxicity. Take FRUZAQLA with or without food [see Clinical Pharmacology (12.3) ] at approximately the same time each day. Swallow the FRUZAQLA capsule whole. Take a missed dose if less than 12 hours have passed since the missed scheduled dose.
Contraindications
- 4. CONTRAINDICATIONS None. None. ( 4 )
Side Effects
- 6. ADVERSE REACTIONS The following clinically significant adverse reactions are described elsewhere in the labeling: Hypertension [see Warnings and Precautions (5.1) ] . Hemorrhagic Events [see Warnings and Precautions (5.2) ] . Infections [see Warnings and Precautions (5.3) ] . Gastrointestinal Perforation [see Warnings and Precautions (5.4) ] . Hepatotoxicity [see Warnings and Precautions (5.5) ]. Proteinuria [see Warnings and Precautions (5.6) ] . Palmar-Plantar Erythrodysesthesia (PPE) [see Warnings and Precautions (5.7) ] .
Interactions
- 7. DRUG INTERACTIONS Strong or Moderate CYP3A Inducers: Avoid concomitant use. ( 7.1 ) 7.1. Effects of Other Drugs on FRUZAQLA Strong CYP3A Inducers Avoid concomitant use of drugs that are strong CYP3A inducers with FRUZAQLA. Concomitant use with a strong CYP3A inducer may decrease fruquintinib C max and AUC [see Clinical Pharmacology (12.3) ] , which may reduce the efficacy of FRUZAQLA. Moderate CYP3A Inducers If possible, avoid concomitant use of drugs that are moderate CYP3A inducers with FRUZAQLA.