Related Experiment Video
Updated: Jun 3, 2026

Molecular and Immunologic Techniques in a Genetically Engineered Mouse Model of Gastrointestinal Stromal Tumor
Published on: May 2, 2022
Pharmacokinetics and pharmacodynamics of nilotinib in gastrointestinal stromal tumors
Jonathan Trent1, Mathieu Molimard
1Department of Sarcoma Medical Oncology and The Adult Sarcoma Research Center, University of Texas M.D. Anderson Cancer Center, Houston, TX 77030, USA. jtrent@mdanderson.org
Abstract:
Nilotinib is a second-generation, oral tyrosine kinase inhibitor that provides specific inhibition of KIT, platelet-derived growth factor receptors (PDGFRs) alpha and beta, as well as breakpoint cluster region Abelson. Studies in healthy volunteers and patients with chronic myelogenous leukemia or gastrointestinal stromal tumors (GIST) have shown that the pharmacokinetics (PK) of nilotinib are similar to those of imatinib and well suited to twice-daily administration of a 400-mg dose. These studies show that the maximum plasma concentration of nilotinib is reached 3 to 4 hours after oral administration, with an elimination half-life of 17 hours through metabolism via oxidation and hydroxylation. Bioavailability of nilotinib is increased if administered with a high-fat meal or with cytochrome P450 3A4 inhibitors, but consumption of high-fat meals to allow lower doses of nilotinib is not recommended. Proton pump inhibitors have not been shown to have a clinically significant impact on nilotinib PK. Several studies have demonstrated preliminary evidence that nilotinib provides clinical benefit and can be safely administered to imatinib-resistant GIST patients.
Insights
Nilotinib, a tyrosine kinase inhibitor, shows favorable pharmacokinetics for treating GIST and CML. It is well-tolerated and effective in imatinib-resistant GIST patients.
Area of Science:
- Oncology
- Pharmacology
- Molecular Biology
Background:
- Nilotinib is a targeted therapy drug.
- It inhibits specific tyrosine kinases implicated in cancer growth.
Purpose of the Study:
- To evaluate the pharmacokinetics and safety of nilotinib.
- To assess its efficacy in imatinib-resistant gastrointestinal stromal tumors (GIST).
Main Methods:
- Pharmacokinetic studies in healthy volunteers and patients.
- Clinical trials involving patients with chronic myelogenous leukemia (CML) and GIST.
Main Results:
- Nilotinib exhibits pharmacokinetics similar to imatinib, supporting twice-daily dosing.
- Maximum plasma concentration is reached in 3-4 hours, with a 17-hour half-life.
- Preliminary data suggest clinical benefit and safety in imatinib-resistant GIST.
Conclusions:
- Nilotinib demonstrates suitable pharmacokinetics for therapeutic use.
- The drug shows promise for treating imatinib-resistant GIST.
- Nilotinib is a potential therapeutic option in oncology.
Related Concept Videos
Drugs that Stabilize Microtubules
Pharmacogenetics of Phase II Enzymes: N-acetyltransferase, Thiopurine S-methyltransferase, UDP-glucuronosyltransferase
Pharmacogenetics of Drug Targets: β₂-Adrenergic Receptors, Apo E, Thymidylate Synthase
Nonlinear Pharmacokinetics: Role of Transporters
Polymorphisms occurring in drug transporters can alter...
Impact of Pharmacokinetic–Pharmacodynamic Models: Regulatory Decisions
Drugs that Destabilize Microtubules
