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Patient-reported adverse drug reactions and their influence on adherence and quality of life of chronic myeloid leukemia patients on per oral tyrosine kinase inhibitor treatment

Authors Kekäle M, Peltoniemi M, Airaksinen M

Received 9 July 2015

Accepted for publication 19 September 2015

Published 8 December 2015 Volume 2015:9 Pages 1733—1740

DOI https://doi.org/10.2147/PPA.S92125

Checked for plagiarism Yes

Review by Single-blind

Peer reviewers approved by Dr Safaa Khaled

Peer reviewer comments 3

Editor who approved publication: Dr Johnny Chen

Meri Kekäle,1 Marikki Peltoniemi,2 Marja Airaksinen1

1Clinical Pharmacy Group, Division of Pharmacology and Pharmacotherapy, 2Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland

Purpose: To evaluate adverse drug reactions (ADRs) experienced by chronic myeloid leukemia (CML) patients during per oral tyrosine kinase inhibitor (TKI) treatment and correlation of ADR symptoms with medication adherence and perceived quality of life (QoL).
Patients and methods: Eighty-six adult, chronic-phase CML patients who had been on TKI treatment (79% on imatinib, 10.5% dasatinib, and 10.5% nilotinib) for at least 6 months participated in the study (mean age: 57.8 years, 52% males). The mean time from diagnosis was 5.1 years. All patients were interviewed, and patient-reported ADRs were obtained using a structured list. Adherence was assessed using Morisky’s 8-item Medication Adherence Scale (MMAS). The symptoms’ interference with patient’s daily QoL was measured by asking patients about the influence of symptom(s) on their mood, general condition, enjoyment of life, walking, relationships, and work.
Results: Ninety-seven percent of the patients were suffering from at least one ADR. The mean number of different symptoms was seven (range: 0–15, median 6). The most commonly perceived ADRs were muscle soreness or cramp (69/86, 80%); swelling of hands, legs, feet, or around the eyes (59/86, 69%); and fatigue (43/86, 50%). No correlation was found between adherence and ADRs, because symptoms were equally common in each MMAS adherence class. Half of the patients felt that the ADRs had a negative influence on their daily QoL. A quarter of the patients reported that ADRs affected either their mood, general condition, or enjoyment of life. The incidence of almost all ADRs was much higher among patients reporting negative influence of ADRs on their daily life compared to total study population (P=0.016).
Conclusion: TKI-related ADRs were common among CML patients irrespective of patient’s adherence level. Patients who reported that ADRs had a negative influence on their daily QoL perceived more ADRs than those who did not experience a negative influence.

Keywords: chronic myeloid leukemia, tyrosine kinase inhibitors, adverse drug reaction, adherence, quality of life, patient-reported outcomes

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Chronic myeloid leukemia patients’ adherence to peroral tyrosine kinase inhibitors compared with adherence as estimated by their physicians

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