Risk Factors for Delayed Elimination of Methotrexate in Children, Adolescents and Young Adults With Osteosarcoma

High-dose methotrexate (HD-MTX) is pivotal chemotherapy in the treatment of patients with osteosarcoma. Blood concentrations of MTX are associated with several side effects, but there are large individual differences in the elimination of MTX. The aim of this study was to explore risk factors for de...

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Published inIn vivo (Athens) Vol. 34; no. 6; pp. 3459 - 3465
Main Authors Misaka, K O, Suga, Yukio, Staub, Yukiko, Tsubata, Atsumi, Shimada, Tsutomu, Sai, Yoshimichi, Matsushita, Ryo
Format Journal Article
LanguageEnglish
Published Greece International Institute of Anticancer Research 01.11.2020
Subjects
High-dose methotrexate
risk factor
osteosarcoma
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Summary:High-dose methotrexate (HD-MTX) is pivotal chemotherapy in the treatment of patients with osteosarcoma. Blood concentrations of MTX are associated with several side effects, but there are large individual differences in the elimination of MTX. The aim of this study was to explore risk factors for delayed elimination of MTX in children, adolescents and young adults with osteosarcoma. We conducted a retrospective study on Japanese patients with osteosarcoma who were treated with HD-MTX at Kanazawa University Hospital from April 2006 to March 2015. Risk factors for delayed elimination of methotrexate were identified by multiple logistic regression analysis. A total of 92 cycles of HD-MTX therapy were analyzed. Female and lower creatinine clearance (CCr) were identified as independent risk factors for delayed elimination of MTX. Knowing the factors associated with delayed elimination of MTX could lead to safer and optimized chemotherapy for patients with osteosarcoma.
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ISSN:0258-851X
1791-7549
DOI:10.21873/invivo.12185