• Yukiko Misaki, Shun-Ichi Kimura, Masakatsu Kawamura, Shunto Kawamura, Junko Takeshita, Nozomu Yoshino, Kazuki Yoshimura, Ayumi Gomyo, Shimpei Matsumi, Yu Akahoshi, Masaharu Tamaki, Machiko Kusuda, Kazuaki Kameda, Hidenori Wada, Koji Kawamura, Miki Sato, Kiriko Terasako-Saito, Aki Tanihara, Hideki Nakasone, Shinichi Kako, and Yoshinobu Kanda.
• Division of Hematology, Saitama Medical Center, Jichi Medical University, Saitama-City, Japan.
• Transpl Infect Dis. 2020 Jun 1; 22 (3): e13270.

AbstractWhile the dose of ganciclovir (GCV) is decided base on patients' body weight (BW), that of valganciclovir (VGCV) is fixed as 900 or 1800 mg/d regardless of the patient's BW in preemptive therapy for cytomegalovirus (CMV) reactivation in hematopoietic stem cell transplantation. We analyzed the impact of the patient's BW on the effectiveness and adverse events (AEs) of VGCV. From March 2004 to February 2017, 27 patients received VGCV as a first-line treatment for CMV reactivation. As a historical control group, we extracted 17 patients who started to receive GCV at a similar timing. We used the following definitions of outcomes: speed of reduction of CMV antigenemia (CMV-AG) as a measure of effectiveness, ratios of baseline and minimum value for white blood cell (WBC) and platelet counts, and ratio of baseline and maximum values for serum creatinine (sCr) as measures of AEs. As a result, there was no significant correlation between average daily dose of VGCV with or without adjusting for the patient's BW and speed of reduction of CMV-AG. On the other hand, the decreases in WBC and platelets and the increase in sCr were significantly correlated with the cumulative dose of VGCV. However, the absolute values of the correlation coefficients did not increase when we analyzed the correlations between the BW-adjusted cumulative dose of VGCV and factors associated with adverse events. There were no significant differences in efficacies or AE parameters between the GCV and VGCV groups. In conclusion, the patient's BW did not significantly affect the effectiveness or adverse events of VGCV.© 2020 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

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