Acta pharmacologica Sinica · 2010
Imatinib plasma trough concentration and its correlation with characteristics and response in Chinese CML patients.
Контролируемое клиническое исследованиеСтатьяНазвание и аннотация: Перевод пока не подготовлен
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Li Qiu-bai, Chen Chao, Chen Zhi-chao, Wang Hong-xiang, Wu Yan-lin, You Yong, Zou Ping
Аннотация
AIM: To investigate the pharmacokinetics of imatinib in Chinese chronic myelogenous leukemia (CML) patients.
METHODS: Fourty-six naïve Chinese CML patients treated with imatinib (400 and 600 mg daily, n=36 and 10, respectively) were recruited. The correlations of imatinib (400 mg) trough plasma concentrations (C(mins)) with the patients' characteristics and responses were analyzed.
RESULTS: The overall mean (+/-SD, CV%) steady-state C(mins) for imatinib at 400 mg (n=36) and 600 mg (n=10) daily was 1325.61 ng/mL (+/-583.53 ng/mL; 44%) and 1550.90 ng/mL (+/-462.63 ng/mL; 30%), respectively, and no statistically significant differences were found between them (P=0.267). At 400 mg daily, female patients had significantly higher C(mins) than the male patients (P=0.048), and molecular responses were not correlated with imatinib C(mins), but they were correlated with time elapsed before imatinib therapy.
CONCLUSION: The results suggest that Chinese CML patients have higher imatinib C(mins) than their Caucasian counterparts and that the optimal initial imatinib dose for them requires further investigation.
METHODS: Fourty-six naïve Chinese CML patients treated with imatinib (400 and 600 mg daily, n=36 and 10, respectively) were recruited. The correlations of imatinib (400 mg) trough plasma concentrations (C(mins)) with the patients' characteristics and responses were analyzed.
RESULTS: The overall mean (+/-SD, CV%) steady-state C(mins) for imatinib at 400 mg (n=36) and 600 mg (n=10) daily was 1325.61 ng/mL (+/-583.53 ng/mL; 44%) and 1550.90 ng/mL (+/-462.63 ng/mL; 30%), respectively, and no statistically significant differences were found between them (P=0.267). At 400 mg daily, female patients had significantly higher C(mins) than the male patients (P=0.048), and molecular responses were not correlated with imatinib C(mins), but they were correlated with time elapsed before imatinib therapy.
CONCLUSION: The results suggest that Chinese CML patients have higher imatinib C(mins) than their Caucasian counterparts and that the optimal initial imatinib dose for them requires further investigation.