Quality of life and ethics: Opinions about chemotherapy among patients with advanced melanoma, next of kin and care-providers

Advanced cutaneous malignant melanoma: a systematic review of economic and quality-of-life studies

OBJECTIVE

Metastatic melanoma (MM), a major concern for health-care providers, is increasing. We systematically reviewed published articles describing the impact of interventions (drugs and screening) on quality of life (QoL) in patients with MM, and articles that measured QoL in MM.

METHODS

We searched secondary databases including MEDLINE, Embase, CINAHL, Cochrane, and DARE from inception to 2006 using MESH terms "melanoma" and "metastases." Economic articles were subject to established quality assessment procedures.

RESULTS

We found 13 QoL and five economic studies (three cost-effectiveness, two cost-utility; average quality = 83% +/- 7%). No strong evidence was found in this review for cost-effectiveness of interferons in Canada (incremental cost-effectiveness ratio [ICER] = $55,090/quality-adjusted life-year) or temozolomide in the United States (ICER = $36,990/Life-year gained based on nonsignificant efficacy differences). Melanoma screening was not cost-effective in the United States ($150,000-931,000/life-saved) or Germany (no survival benefit). From the 13 QoL studies,eight measured baseline QoL; six studied the same population, generating similar results using different approaches/outcomes. Tools used included GLQ-8, QLQ-C30, QLQ-36, QWB-SA, and SF-36. Baseline scores QoL scores ranged from 0.60 to 0.69. Another five studies (N = 959 patients) were randomized trials analyzing QoL in patients treated with dacarbazine alone, dacarbazine +/- interferon, dacarbazine + fotemustine, interleukin +/- histamine, and temozolomide. Little difference was found in QoL scores between drugs or between baseline and end point.

CONCLUSIONS

Cost-effectiveness has not been widely demonstrated for treatment of MM. Only two studies with unimpressive results exist for treatments. Screening was not cost-effective in the United States or Germany. Generally, no significant improvements in QoL were found for any alternative for treating MM. A need exists for effective treatments that improve duration and QoL.

Quality of life in patients with endocrine tumors of the gastrointestinal tract: patient and staff perceptions

Patient and staff perceptions regarding the importance of selected quality-of-life (QoL) aspects and patient ratings of their present QoL (EORTC QLQ-C30) were investigated. The study comprised 17 patients with endocrine tumors of the gastrointestinal tract and their staff, paired in dyads. Both patients and staff rate physical aspects of life (e.g., "wash yourself, dress, eat, etc.," "have a good health," "not have pain") as most important for experiencing a good QoL. Staff considered work as more important for experiencing a good QoL than did patients. Patients rated their QoL as relatively good and were more satisfied with certain QoL aspects than staff perceived them to be. Staff did not accurately judge a certain patient's satisfaction with various QoL aspects, which suggests that there is room for staff to improve their understanding of these aspects. There were no significant mean value differences between patient and staff ratings of patient anxiety and depression, but no significant correlations within dyads. This suggests that the communication between patients and staff could be improved in this respect.

Criterion-based validation of the EORTC QLQ-C36 in advanced melanoma: the CIPS questionnaire and proxy raters

An extensive quality of life (QOL) investigation of the effects of chemotherapy in patients with generalized malignant melanoma included a validation study of involved questionnaires. The QOL domains of the three basic quality of life questionnaires, the EORTC QLQ-C36 (European Organization for Research and Treatment of Cancer Quality of Life Core Questionnaire), a study-specific malignant melanoma (MM) module and the Hospital Anxiety and Depression (HAD) scale vs. the Cancer Inventory of Problem Situations (CIPS) were validated by correlation analyses. The value of using attending nurses and/or next of kin to assess the patients situation was also examined. Functional and symptom scales of the C36 and the subscales of the HAD showed appropriate convergent and discriminant validity when compared with the CIPS. The subscales of the MM module had less clear relationships, probably due to lack of accordance in the CIPS. Assessments of attending nurses revealed very low correlations with the patients' measures. They underestimated significantly series of specific symptoms and overestimated nausea and the overall quality of life of the patients. However, assessments of close relatives, mostly spouses, showed moderate to high correlations and no significant difference. These results further strengthen the overall validity of the modular approach of the EORTC QLQ technique. In this context of active chemotherapy in patients with advanced cancer disease, relatives seem to be better surrogates than the attending nurses in assessing the patients' quality of life.