cabozantinib

Ligand id: 5887

Name: cabozantinib

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Structure and Physico-chemical Properties

2D Structure
Calculated Physico-chemical Properties
Hydrogen bond acceptors 5
Hydrogen bond donors 2
Rotatable bonds 10
Topological polar surface area 98.78
Molecular weight 501.17
XLogP 5.79
No. Lipinski's rules broken 1

Molecular properties generated using the CDK

No information available.
Summary of Clinical Use
In 2009 cabozantinib was granted orphan designation by the European Commission for the treatment of medullary thyroid carcinoma. US FDA full approval was granted in 2012, for the treatment of medullary thyroid cancer that cannot be removed by surgery or that has metastasized. EU approval for this indication followed in 2014.
Preliminary results from a Phase III trial in metastatic renal cell carcinoma that had progressed after VEGFR-targeted therapy (NCT01865747) reported a 50% improvement in progression-free survival over everolimus [1]. These clinical trial results translated to full FDA marketing authorisation for Cabometyx® branded cabozantinib in April 2016. Cabometyx® is approved for use in patients with advanced renal cell carcinoma who have already been treated with anti-angiogenic therapy.
Earlier stage clinical trials are evaluating cabozantinib against many other cancer types, and in combination or comparision with other anti-cancer therapeutics- click here to link to ClinicalTrials.gov's list of current cabozantinib trials.
NCT01639508 (Phase II) is evaluating the effectiveness of cabozantinib in advanced non-small cell lung cancers with various gene alterations, such as RET, ROS1, or NTRK fusion, or increased MET or AXL activity.
Mechanism Of Action and Pharmacodynamic Effects
Cabozantinib is effective against progressive, metastatic medullary thyroid cancer (MTC), particularly against cancer cells with a mutated RET gene. In vitro biochemical and/or cellular assays have shown that cabozantinib inhibits the tyrosine kinase activity of RET, MET, VEGFR-1, -2 and -3, KIT, TRKB, FLT-3, AXL, and TIE-2. These receptor tyrosine kinases are involved in both normal cellular function and pathologic processes such as oncogenesis, metastasis, tumor angiogenesis, and maintenance of the tumor microenvironment.
Pharmacokinetics
Absorption/Distribution
Peak plasma concentration is achieved 2-5 hours after oral administration. The majority of circulating cabozantinib (> 99.7%) is bound to plasma proteins .
Biotransformation/Metabolism
Cabozantinib is metabolized mostly by CYP3A4 and, to a minor extent, by CYP2C9, therefore avoid administration of cabozantinib with agents that are strong CYP3A4 inducers or inhibitors.
Elimination
Cabozantinib is eliminated mostly in the feces (54%) and also in the urine (27%).
Population pharmacokinetics
There are no clinically relevant differences in clearance of cabozantinib associated with age, gender or race.
Organ function impairment
Cabozantinib is not recommended for use in patients with moderate and severe hepatic impairment as safety and efficacy have not been established. No dose adjustment is recommended for patients with mild or moderate renal impairment. There is no experience with cabozantinib in patients with severe renal impairment.
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