The development of the oral tyrosine kinase inhibitors (TKIs) to treat chronic myeloid leukemia (CML) is one of the great triumphs of cancer research. Although the efficacy of TKIs has dramatically ...improved the disease-specific overall survival rate, the prevalence of CML is increasing worldwide. Currently, CML patients receive prolonged (even lifelong) treatment, and over the last decade, clinical decision making has become challenging. Therefore, consideration of the effects of TKI therapies on patients' quality of life (QoL) and symptom burden (ie, patient-reported outcomes PROs) is now critical to more robustly inform patient care and improve health care quality. Over the last 5 years, a number of studies have generated valuable PRO data, for example, on long-term QoL effects of imatinib therapy or symptom burden of patients switching from imatinib to second-generation TKIs. PRO findings are important, as they provide a unique patient perspective on the burden of the disease and treatments effects. We will review main evidence-based data on the use of PROs in clinical research and highlight the importance of methodological rigor of PRO assessment. Also, we will describe the potential value of using PRO assessment in routine clinical practice, for example, to facilitate timely management of side effects. Areas for future research will also be discussed.
Patient-reported outcomes (PROs), routinely collected as a part of cancer clinical trials, have been linked with survival in numerous clinical studies, but a comprehensive critical review has not ...been reported. This study systematically assessed the impact of PROs on patient survival after a cancer diagnosis within the context of clinical trials.
Cancer clinical trials that assessed baseline PROs and mortality were identified through MEDLINE (through December 2006) supplemented by the Cochrane database, American Society of Clinical Oncology/European Society for Medical Oncology abstracts and hand searches. Inclusion criteria were publication in English language and use of multivariate analyses of PROs that controlled for one or more clinical factors. Two raters reviewed each study, abstracted data, and assessed study quality; two additional raters verified abstractions.
In 36 of 39 studies (N = 13,874), at least one PRO was significantly associated with survival (P < .05) in multivariate analysis, with varying effect sizes. Studies of lung (n = 12) and breast cancer (n = 8) were most prevalent. The most commonly assessed PRO was quality of life, measured by the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire C30 in 56% of studies. Clinical variables adjusted for included performance status (PS), treatment arm, stage, weight loss, and serum markers. Results indicated that PROs provide distinct prognostic information beyond standard clinical measures in cancer clinical trials.
PROs might be considered for stratification purposes in future trials, as they were often better predictors of survival than PS. Studies are needed to determine whether interventions that improve PROs also increase survival and to identify explanatory mechanisms through which PROs relate to survival.
Interpretation of differences or changes in patient-reported outcome scores should not only consider statistical significance, but also clinical relevance. Accordingly, accurate determination of the ...minimally important difference (MID) is crucial to assess the effectiveness of health care interventions, as well as for sample size calculation. Several methods have been proposed to determine the MID. Our aim was to review the statistical methods used to determine MID in patient-reported outcome (PRO) questionnaires in cancer patients, focusing on the distribution- and anchor-based approaches and to present the variability of criteria used as well as possible limitations.
We performed a systematic search using PubMed. We searched for all cancer studies related to MID determination on a PRO questionnaire. Two reviewers independently screened titles and abstracts to identify relevant articles. Data were extracted from eligible articles using a predefined data collection form. Discrepancies were resolved by discussion and the involvement of a third reviewer.
Sixty-three articles were identified, of which 46 were retained for final analysis. Both distribution- and anchor-based approaches were used to assess the MID in 37 studies (80.4%). Different time points were used to apply the distribution-based method and the most frequently reported distribution was the 0.5 standard deviation at baseline. A change in a PRO external scale (N = 13, 30.2%) and performance status (N = 15, 34.9%) were the most frequently used anchors. The stability of the MID over time was rarely investigated and only 28.2% of studies used at least 3 assessment timepoints. The robustness of anchor-based MID was questionable in 37.2% of the studies where the minimal number of patients by anchor category was less than 20.
Efforts are needed to improve the quality of the methodology used for MID determination in PRO questionnaires used in oncology. In particular, increased attention to the sample size should be paid to guarantee reliable results. This could increase the use of these specific thresholds in future studies.
There is paucity of evidence-based data on health-related quality of life (HRQOL) outcomes of chronic myeloid leukemia (CML) patients treated with tyrosine kinase inhibitors (TKIs). We performed a ...multicenter propensity-matched case-control study to compare HRQOL of newly diagnosed CML patients treated with front-line dasatinib (cases) or imatinib (controls). Patient-reported HRQOL was assessed with the EORTC QLQ-C30 and the EORTC QLQ-CML24 questionnaires. The impact on daily life scale of the EORTC QLQ-CML24 was selected a priori in the protocol as the primary HRQOL scale for the comparative analysis. Overall, 323 CML patients were enrolled of whom 223 in therapy with imatinib and 100 in therapy with dasatinib. Patients treated with dasatinib reported better disease-specific HRQOL outcomes in impact on daily life (Δ = 8.72, 95% confidence interval CI: 3.17-14.27, p = 0.002), satisfaction with social life (Δ = 13.45, 95% CI: 5.82-21.08, p = 0.001), and symptom burden (Δ = 7.69, 95% CI: 3.42-11.96, p = 0.001). Analysis by age groups showed that, in patients aged 60 years and over, differences favoring dasatinib were negligible across several cancer generic and disease-specific HRQOL domains. Our findings provide novel comparative HRQOL data that extends knowledge on safety and efficacy of these two TKIs and may help to facilitate first-line treatment decisions.
Breaking bad news (BBN) may be associated with increasing risk of burnout in practising physicians. However, there is little research on the association between the way bad news is broken and ...burnout. We investigated the association between physicians' self-efficacy regarding communication to patients and risk of burnout. We performed a cross-sectional study by proposing an ad-hoc survey exploring attitudes and practice regarding BBN and the Maslach Burnout Inventory - Human Service Survey to 379 physicians from two University Hospitals in Italy. Associations were assessed by multivariable logistic regression models. Two-hundred twenty-six (60%) physicians returned the questionnaires. 76% of physicians acquired communication skills by observing mentors or colleagues, 64% considered BBN as discussing a poor prognosis, 56% reported discussing prognosis as the most difficult task, 38 and 37% did not plan a BBN encounter and considered it stressful. The overall burnout rate was 59%. Considering BBN a stressful task was independently associated with high risk of burnout (OR 3.01; p = 0.013). Planning the encounter (OR = 0.43, p = 0.037), mastering communication skills (OR = 0.19, p = 0.034) and the self-evaluation as good or very good at BBN (OR 0.32; 0.15 to 0.71; p = 0.0) were associated with low risk of burnout. Our findings suggest that some physicians' BBN attitudes and knowledge of conceptual frameworks may influence the risk of burnout and support the notion that increasing knowledge about communication skills may protect clinicians from burnout. Further research is needed in this area.
General population normative values for the widely used health-related quality of life (HRQoL) measure, European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire - Core ...30 (EORTC QLQ-C30), are available for a range of countries. These are mostly countries in northern Europe. However, there is still a lack of such normative values for southern Europe. Therefore, this study aims to provide sex-, age- and health condition-specific normative values for the general Italian population for the EORTC QLQ-C30.
This study is based on Italian EORTC QLQ-C30 general population data previously collected in an international EORTC project comprising over 15,000 respondents across 15 countries. Recruitment and assessment were carried out via online panels. Quota sampling was used for sex and age groups (18-39, 40-49, 50-59, 60-69 and ≥ 70 years), separately for each country. We applied weights to match the age and sex distribution in our sample with UN statistics for Italy. Along with descriptive statistics, linear regression models were estimated to describe the associations of sex, age and health condition with the EORTC QLQ-C30 scores.
A total of 1,036 respondents from Italy were included in our analyses. The weighted mean age was 49.3 years, and 536 (51.7%) participants were female. Having at least one health condition was reported by 60.7% of the participants. Men reported better scores than women on all EORTC QLQ-C30 scales but diarrhoea. While the impact of age differed across scales, older age was overall associated with better HRQoL as shown by the summary score. For all scales, differences were in favour of participants who did not report any health condition, compared to those who reported at least one.
The Italian normative values for the EORTC QLQ-C30 scales support the interpretation of HRQoL profiles in Italian cancer populations. The strong impact of health conditions on EORTC QLQ-C30 scores highlights the importance of adjusting for the impact of comorbidities in cancer patients when interpreting HRQoL data.
Introduction
Early palliative care (EPC) improves the quality of life (QoL) of advanced cancer patients and their caregivers. The increasingly widespread use of this care model requires the ...development of measures supporting its interventions. Although the construct of patient’s QoL has been extensively investigated and several QoL measures have been further validated, there is a paucity of data concerning the QoL of the caregiver. In 2018, McDonald and colleagues addressed this issue by interviewing 23 primary caregivers of advanced cancer patients who participated in an EPC randomized clinical trial to understand their perspective on the QoL construct. The Authors identified six major dimensions associated with the construct of caregiver’s QoL. The present retrospective study aimed to validate these dimensions on a larger sample and in a real-life EPC setting.
Methods
Previously collected reports from 137 primary caregivers of advanced cancer patients on EPC answering questions about their experience with this care model were qualitatively analyzed through a deductive, thematic approach to identify and confirm the six dimensions constituting the construct of interest based on McDonald’s and colleagues’ results.
Results
The six dimensions (“living in the patient’s world”, “burden of illness and caregiving”, “assuming the caregiver role”, “renegotiating relationships”, “confronting mortality”, and “maintaining resilience”) were consistently found in the reports from primary caregivers in a real-life EPC setting, confirming to be significant themes associated to their QoL.
Conclusion
A definite and recurrent construct of primary caregiver’s QoL as described by McDonald and colleagues was also found in a larger sample and in a real-life EPC setting. Thus it may lay the groundwork for the development of a dedicated questionnaire.
Early palliative/supportive care (ePSC) is a medical intervention focused on patient's needs, that integrates standard oncological treatment, shortly after a diagnosis of advanced/metastatic cancer. ...ePSC improves the appropriate management of cancer pain. Understanding the semantic and emotional impact of the words used by patients to describe their pain may further improve its assessment in the ePSC setting. Psycholinguistics assumes that the semantic and affective properties of words affect the ease by which they are processed and comprehended. Therefore, in this cross-sectional survey study we collected normative data about the semantic and affective properties of words associated to physical and social pain, in order to investigate how patients with cancer pain on ePSC process them compared to healthy, pain-free individuals. One hundred ninety patients and 124 matched controls rated the Familiarity, Valence, Arousal, Pain-relatedness, Intensity, and Unpleasantness of 94 words expressing physical and social pain. Descriptive and inferential statistics were performed on ratings in order to unveil patients' semantic and affective representation of pain and compare it with those from controls. Possible effects of variables associated to the illness experience were also tested. Both groups perceived the words conveying social pain as more negative and pain-related than those expressing physical pain, confirming previous evidence of social pain described as worse than physical pain. Patients rated pain words as less negative, less pain-related, and conveying a lower intense and unpleasant pain than controls, suggesting either an adaptation to the pain experience or the role played by ePSC in improving patients' ability to cope with it. This exploratory study suggests that a chronic pain experience as the one experienced by cancer patients on ePSC affects the semantic and affective representation of pain words.
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