ALBERT

Description: Background Adherence to the prescribed dose of tyrosine kinase inhibitors (TKIs) is critical to maximize treatment effectiveness in chronic myeloid leukemia (CML). While patient-centered outcome studies are lacking in this area, literature has shown that a significant proportion of patients report both intentional and unintentional non-adherence. Objective The main objective of this multivariate analysis was to identify risk factors that might predict intentional non-adherence to TKIs in CML. Methods The CML Advocates Network, connecting 79 CML patient groups from 63 countries, conducted an international project investigating patterns of medication-taking behaviors of CML patients, supported by CML investigator groups in Germany, Italy and France. We sought to demonstrate the relationship between 16 factors and adherence in this multinational cohort. A web-based survey was launched in 12 languages, enrolling CML patients from Sept 2012 to Jan 2013. The identical questionnaire was provided to a cohort of patients recruited in clinics in France, Germany and Italy, returned by patients in a pre-stamped envelope to an independent data center. Questions included potential factors associated with non-adherence as well as on patients' perception of disease and treatment burden. Based on previous literature and on clinical relevance, a pool of 16 candidate factors, potentially predicting intentional non-adherence, was selected for analysis. These included: frequency of CML medication, co-payment for CML treatment, and current TKI therapy. Patients who reported having skipped intentionally one or more doses over the last year were considered as “intentional non-adherers”. Univariate logistic regression analysis was performed to examine the impact of pre-selected candidate factors on the probability of intentional non-adherence. Two multivariate models were fitted based on line of therapy received by patients (i.e. first line and second or greater lines of therapy). Results This patient-led study is the largest study conducted to date on the influencers of non-adherence in CML. Overall, 2546 adult CML patients (47.6% female) under TKI treatment from 79 countries responded to the survey. 2151 patients responded online, 395 questionnaires were returned on paper. No significant difference on intentional non-adherence was observed between paper or online responses. Median age of patients was 51 years (range 18-96) and median time from diagnosis was 4 years (0-27). Overall, 51.6% of all respondents reported having missed at least one dose unintentionally over the last year, and 19.5% did so intentionally. This analysis regards the intentional non-adherent population (n=490). Of those, 60% were on imatinib, 20% on nilotinib, 14% on dasatinib, 6% on other TKIs. Several factors predicted intentional non-adherence in univariate analysis, including education level (P=0.016) and co-payment for TKIs (P=0.005). For patients on first line TKI (n=1551), the following factors independently predicted a higher likelihood of being intentional non-adherers: younger age (P=0.015), longer time since diagnosis (P

Description: Background In Chronic Myeloid Leukemia (CML), Treatment-free Remission (TFR) refers to having a stable deep molecular response without the need for ongoing Tyrosine Kinase Inhibitor (TKI) treatment. While first recommendations exist about how to manage stopping and re-starting therapy, based on data from the EURO-SKI study, much is still unknown about the experiences of those considering and undertaking TFR. Through this study, we sought to obtain quantitative evidence of patient experience that has previously only been anecdotal and to identify areas of unmet needs. One strong theme to emerge was patients' differing views on the need for psychological support. Method A global online survey was conducted, recruiting patients through CML patient associations, via online forums, social media and other methods. The questionnaire was designed by an expert panel of eight CML patients to capture the experiences of people along all phases of the TFR journey. The different phases were classified as: Phase I - Considerations around stopping treatment; Phase II - Probation period (experiences during the first 6 months of stopping treatment); Phase IIIA -Restarting treatment (experiences where treatment had to restart due to molecular reoccurrence), and Phase IIIB - Long-term remission (experiences of being in long-term, treatment-free remission). Once the question set was agreed, the questionnaire went through two rounds of testing by eight volunteers. This exercise contributed towards refining the questionnaire into a finished version. The questionnaire was translated into eleven languages: Arabic, Danish, English, Finnish, French, German, Hebrew, Italian, Japanese, Russian and Spanish. Fieldwork lasted 20 weeks. Results A total of 1016 responses were collected from CML patients across 68 countries. Patients only answered the sections of the questionnaire that were relevant for them. All 1016 had experience of Phase I, 494 (49%) had experience of Phase II, 159 (16%) had experience of Phase IIIA, and 203 (20%) had experience of IIIB. Of the 494 patients who stopped treatment, 32% said disease reoccurred and 41% reported being in long-term remission (this includes