A Phase I cardiac safety and pharmacokinetic study of tivozanib hydrochloride in patients with advanced solid tumors.
Clin Pharmacol Drug Dev
; 3(4): 284-9, 2014 07.
Article
em En
| MEDLINE
| ID: mdl-27128834
ABSTRACT
Tivozanib hydrochloride (tivozanib) is a potent, selective tyrosine kinase inhibitor of all three vascular endothelial growth factor receptors, with a long half-life. Tivozanib's effects on the QTc interval in patients with advanced solid tumors were assessed. Patients received 1.5 mg of tivozanib orally, once daily, for 21 days. Safety evaluations, serial blood samples for pharmacokinetic measurements, and time-matched, triplicate, 12-lead electrocardiograms (ECG) were collected. Fifty patients were evaluable. The maximum change in QTcF was 9.3 milliseconds (90% confidence interval [CI] 5-13.6), occurring 2.5 hours after dosing on Day 21. The central tendency change across all time points was +2.2 milliseconds. The slope of the exposure-ΔQTcF relationship was 0.08464 ms/ng/mL, with a predicted QTcF change of 8.27 milliseconds at the average tivozanib Tmax of 118.1 ng/mL (upper CI 12.6 milliseconds). There were no QTcF values >500 milliseconds or significant changes from baseline observed in heart rate, PR interval, and QRS complex. These data, evaluated along with other tivozanib preclinical and clinical study results, suggest that administration of 1.5 mg tivozanib for 21 days has a minimal effect on cardiac repolarization or ECG morphology in oncology subjects.
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Base de dados:
MEDLINE
Assunto principal:
Compostos de Fenilureia
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Quinolinas
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Inibidores da Angiogênese
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Inibidores de Proteínas Quinases
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Neoplasias
Tipo de estudo:
Etiology_studies
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Observational_studies
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Prognostic_studies
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Risk_factors_studies
Limite:
Female
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Humans
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Male
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Middle aged
Idioma:
En
Ano de publicação:
2014
Tipo de documento:
Article