ArticleClinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico2026
Disproportionality analysis of hematologic adverse events associated with trastuzumab deruxtecan using the Japanese pharmacovigilance database.
Article in Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposeTo evaluate the disproportionality, time to onset, reporting frequency, and outcomes of hematologic AEs associated with trastuzumab deruxtecan (T-DXd) using data from the Japanese Adverse Drug Event Report database (JADER).
methodsWe analyzed data for the period from April 2004 to December 2024. Data on hematologic AEs were extracted, and the disproportionality of T-DXd-associated AEs was assessed by calculating reporting odds ratios.
resultsAmong the 3,221,393 reports analyzed, 1561 were associated with T-DXd, including 433 hematologic AEs. Signals were detected for six AEs, including febrile neutropenia, anaemia, neutrophil count decreased, neutropenia, platelet count decreased, and myelosuppression. All had fatal cases, with particularly high fatality rates observed for febrile neutropenia and platelet count decreased. A histogram of median times to onset showed that febrile neutropenia and platelet count decreased typically occurred within 8 to 10.5 days after administration. Weibull distribution analysis indicated that febrile neutropenia showed an early-onset tendency (early failure type), whereas platelet count decreased occurred in a dose-dependent manner (wear-out failure type).
conclusionsSome hematologic AEs associated with T-DXd can be fatal and may occur not only early in treatment but also later in the course. Continuous monitoring is essential for their timely detection and appropriate management.
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