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Clinical study on severe delayed excretion complicated with acute kidney injury in hematological malignancies treated with high-dose methotrexate
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Qiao-yan LIa, Ai-ling MAa, Yi-meng WANGa, Dan YANGa, Xiang-li CHENb
Chinese Journal of Clinical Pharmacology | 2026, 42(3) : 333 - 337
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Chinese Journal of Clinical Pharmacology | 2026, 42(3): 333-337
Clinical and Basic Bridging Research
Clinical study on severe delayed excretion complicated with acute kidney injury in hematological malignancies treated with high-dose methotrexate
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Qiao-yan LIa, Ai-ling MAa, Yi-meng WANGa, Dan YANGa, Xiang-li CHENb
Affiliations
  • a.Department of Pharmacy, Henan Provincial People’s Hospital, Zhengzhou 450003, Henan Province, China
  • b.Department of Hematology, Henan Provincial People’s Hospital, Zhengzhou 450003, Henan Province, China
Published: 2026-02-17 doi: 10.13699/j.cnki.1001-6821.2026.03.006
Outline
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Objective

To analyze the occurrence and risk factors of acute kidney injury (AKI) in patients with hematologic malignancies who experienced severe delayed excretion after high-dose methotrexate (HD-MTX) chemotherapy, and to explore dose adjustment strategies for reusing HD-MTX in these patients.

Methods

A retrospective analysis was conducted on clinical data of hematologic malignancy patients treated with HD-MTX in the hematology and oncology departments. Patients with severe delayed MTX excretion (defined as serum MTX >30 μmol·L-1 at 24 h, >3 μmol·L-1 at 48 h, >0.3 μmol·L-1 at 72 h, or prolonged low-level MTX >0.3 μmol·L-1 for >6 days) were included. Patients were divided into three groups based on AKI severity, group A was mild AKI, group B was moderate AKT, group C was severe AKI. Statistical methods were used to analyze risk factors for severe excretion delay and AKI.

Results

Among 26 patients (28 HD-MTX cycles) with severe delayed excretion, AKI occurred in all cycles (100.00%). Group A accounted for 21.43% (6 cases/28 cases), Group B accounted for 46.43% (13 cases/28 cases), accounted for 32.14% (9 cases/28 cases). Pre-treatment albumin levels in group A, group B and group C were (42.22±4.63), (39.08±4.3) and (35.25±4.19) g·L-1. Among patients with moderate/severe AKI, 11 received 19 subsequent HD-MTX cycles at reduced doses (1/3-1× original), with no recurrence of excretion delay or AKI.

Conclusion

Low pre-treatment albumin levels, particularly <35 g·L-1 are strongly associated with severe MTX-related AKI. Patients with a history of MTX-induced AKI can safely reuse HD-MTX at adjusted doses (based on renal recovery and clinical indicators) without AKI recurrence.

high-dose methotrexate  /  albumin level  /  kidney injury  /  dose adjustment
Qiao-yan LI, Ai-ling MA, Yi-meng WANG, Dan YANG, Xiang-li CHEN. Clinical study on severe delayed excretion complicated with acute kidney injury in hematological malignancies treated with high-dose methotrexate[J]. Chinese Journal of Clinical Pharmacology, 2026 , 42 (3) : 333 -337 . DOI: 10.13699/j.cnki.1001-6821.2026.03.006
Year 2026 volume 42 Issue 3
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Article Info
doi: 10.13699/j.cnki.1001-6821.2026.03.006
  • Receive Date:2025-05-13
  • Online Date:2026-08-06
  • Published:2026-02-17
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History
  • Received:2025-05-13
Affiliations
    a.Department of Pharmacy, Henan Provincial People’s Hospital, Zhengzhou 450003, Henan Province, China
    b.Department of Hematology, Henan Provincial People’s Hospital, Zhengzhou 450003, Henan Province, China
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表12种不同金属材料的力学参数

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Number of
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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