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Curr Med Res Opin. 2014 Nov;30(11):2317-28. doi: 10.1185/03007995.2014.944973. Epub 2014 Aug 5.

Impact of low-grade adverse events on health-related quality of life in adult patients receiving imatinib or nilotinib for newly diagnosed Philadelphia chromosome positive chronic myelogenous leukemia in chronic phase.

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Analysis Group Inc. , Montreal, QC , Canada.



Chronic myeloid leukemia (CML) treatment relies on tyrosine kinase inhibitors (TKIs), but their use can be associated with low-grade adverse events (AEs). This analysis aimed to identify the low-grade AEs which significantly impact the Health Related Quality of Life (HRQoL) of CML patients in chronic phase (CP) and to compare the incidence of such AEs among nilotinib- and imatinib-treated patients.


Data from the 48 month ENESTnd trial were used (N = 593 patients). HRQoL was assessed using generic (SF-36) and leukemia-specific (FACT-Leu) HRQoL surveys. AEs were categorized into 26 system organ classes.


In the adjusted regression model, five low-grade AE categories - gastrointestinal disorders, blood and lymphatic system disorders, general disorders and administration site conditions, musculoskeletal disorders, and psychiatric disorders - significantly impaired at least one HRQoL score. The incidence rate of these five AE categories was either significantly lower for nilotinib than imatinib or not different between the two drugs. The AE categories with lower incidence for both nilotinib 300 mg BID and 400 mg BID versus imatinib 400 mg daily were gastrointestinal, blood and lymphatic system, and musculoskeletal; nilotinib 300 mg BID had lower incidence than imatinib for general disorders.


Low-grade AEs were grouped and analyzed by system organ class category, so the effect of some rare individual AEs on HRQoL may have been missed.


The impact of low-grade AEs on HRQoL should be taken into account, along with other factors, when selecting the optimal treatment for patients newly diagnosed with CML-CP.


Adverse effects; Imatinib; Myelogenous leukemia, chronic; Nilotinib; Quality of life

[Indexed for MEDLINE]

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