Comparative Pharmacology
Head-to-head clinical analysis: BOSUTINIB versus QINLOCK.
Peer-Reviewed Evidence
Head-to-head clinical analysis: BOSUTINIB versus QINLOCK.
BOSUTINIB vs QINLOCK
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Bosutinib is a tyrosine kinase inhibitor that inhibits the BCR-ABL kinase, including many imatinib-resistant mutations, and Src family kinases.
Ripretinib is a switch-control tyrosine kinase inhibitor that inhibits KIT proto-oncogene receptor tyrosine kinase (KIT) and platelet-derived growth factor receptor alpha (PDGFRA) kinase signaling. It binds to both the switch pocket and the activation loop of KIT and PDGFRA, preventing kinase activation and inhibiting downstream signaling pathways involved in tumor cell proliferation and survival.
400 mg orally once daily with food.
150 mg orally once daily with food, until disease progression or unacceptable toxicity.
None Documented
None Documented
Clinical Note
moderateBosutinib + Digoxin
"The serum concentration of Digoxin can be increased when it is combined with Bosutinib."
Clinical Note
moderateBosutinib + Digitoxin
"Bosutinib may decrease the cardiotoxic activities of Digitoxin."
Clinical Note
moderateBosutinib + Deslanoside
"Bosutinib may decrease the cardiotoxic activities of Deslanoside."
Clinical Note
moderateBosutinib + Acetyldigitoxin
"Bosutinib may decrease the cardiotoxic activities of Acetyldigitoxin."
Terminal elimination half-life approximately 33 hours (range 22-60 hr) after oral administration, supporting once-daily dosing.
Terminal elimination half-life is approximately 15 hours (range 11–20 hours) in patients with advanced GIST. This supports twice-daily dosing.
Primarily fecal (approx. 68% as unchanged drug and metabolites) and renal (approx. 25%, with <0.2% as unchanged drug in urine).
Primarily hepatic metabolism, with <1% excreted unchanged in urine. Fecal excretion accounts for approximately 80% of the administered dose, with renal excretion of unchanged drug being minimal (<1%).
Category C
Category C
Tyrosine Kinase Inhibitor
Tyrosine Kinase Inhibitor