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Case report
Filgrastim induced thrombocytopenia
  1. Ghazal Kango and
  2. Faysal Haroun
  1. George Washington University, Washington, District of Columbia, USA
  1. Correspondence to Dr Ghazal Kango; gkango{at}


Drug-induced thrombocytopenia (DITP) is suggested by severe thrombocytopenia with subsequent recovery of platelet count after removal of the offending drug. The diagnosis is ascertained when there is reproducibility of thrombocytopenia with repeated exposure. Filgrastim is used during peripheral blood progenitor cell harvest during autologous stem cell transplantation in the setting of multiple myeloma to prolong event-free survival and overall mortality. The following case illustrates all of the suggestive features of DITP after filgrastim exposure during elective stem cell harvest. Due to the inability to tolerate filgrastim, autologous stem cell transplant was aborted in this patient and he was maintained on induction chemotherapy.

  • cancer - see oncology
  • haematology (drugs and medicines)
  • Haematology (incl blood transfusion)
  • malignant and benign haematology
  • unwanted effects / adverse reactions

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  • Contributors GK has written the case report and developed the associated table and figures. FH has directed the work and provided final edits.

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Competing interests None declared.

  • Patient consent for publication Obtained.

  • Provenance and peer review Not commissioned; externally peer reviewed.