BackgroundExisting reports of utility values for metastatic non-small cell lung cancer (NSCLC) vary quite widely and are not all suitable for use in submissions in the UK. The aim of this study was to elicit UK societal based utility values for different stages of NSCLC and different grade III-IV toxicities commonly associated with chemotherapy treatments. Toxicities included neutropenia, febrile neutropenia, fatigue, diarrhoea, nausea and vomiting, rash and hair loss.MethodsExisting health state descriptions of metastatic breast cancer were revised to make them suitable as descriptions of metastatic NSCLC patients on second-line treatment. The existing health states were used in cognitive debrief interviews with oncologists (n = 5) and oncology specialist nurses (n = 5). Changes were made as suggested by the clinical experts. The resulting health states (n = 17) were piloted and used in a societal based valuation study (n = 100). Participants rated half of the total health states in a standard gamble interview to derive health state utility scores. Data were analysed using a mixed model analysis.ResultsEach health state described the symptom burden of disease and impact on different levels of functioning (physical, emotional, sexual, and social). The disutility related to each disease state and toxicity was estimated and were combined to give health state values. All disease states and toxicities were independent significant predictors of utility (p < 0.001). Stable disease with no toxicity (our base state) had a utility value of 0.653. Utility scores ranged from 0.673 (responding disease with no toxicity) to 0.473 for progressive disease.ConclusionThis study reflects the value that society place on the avoidance of disease progression and severe toxicities in NSCLC.
The aim of the study was to obtain United Kingdom-based societal preferences for distinct stages of metastatic breast cancer (MBC) and six common toxicities. Health states were developed based on literature review, iterative cycles of interviews and a focus group with clinical experts. They described the burden of progressive, responding and stable disease on treatment; and also febrile neutropenia, stomatitis; diarrhoea/vomiting; fatigue; hand-foot syndrome (grade 3/4 toxicities) and hair loss. One hundred members of the general public rated them using standard gamble to determine health state utility. Data were analysed with a mixed model analysis. The study sample was a good match to the general public of England and Wales by demographics and current quality of life. Stable disease on treatment had a utility value of 0.72, with a corresponding gain of þ 0.07 following a treatment response and a decline by 0.27 for disease progression. Toxicities lead to declines in utility between 0.10 (diarrhoea/vomiting) and 0.15 (febrile neutropenia). This study underlines the value that society place on the avoidance of disease progression and severe side effects in MBC. This may be the largest preference study in breast cancer designed to survey a representative general public sample.
This study improves our understanding of how utilities for the same states can vary across countries. The study shows the importance of capturing utilities that reflect the preferences of the local population.
This study has re-examined the utility decrements associated with DR and has identified much larger declines in utility than previously reported. The study has also reported the utility values of patients with retinopathy as assessed by standard gamble. We believe that this may be the first study to report utility values for health states associated with vision loss which have been elicited from patients with vision loss.
IntroductionVarious treatment options are available for metastatic hormone-sensitive prostate cancer. This study aimed to quantify how men with prostate cancer in the United Kingdom (UK), Germany, and Spain perceive the risks and benefits of hypothetical abiraterone acetate plus prednisone treatment and docetaxel-based chemotherapy treatment options.MethodsA targeted literature review, exploratory interviews with prostate cancer patients and oncologists, and pre-test interviews were used to develop a discrete choice experiments (DCE). The final DCE included 32 choice sets, selected using a main-effects orthogonal design, divided into two survey blocks. Paired profiles presented hypothetical treatments for prostate cancer through six attributes that could be presented at two or four levels each. Preference estimates were estimated using a conditional logit regression model. Preference results were stratified by cancer stage.ResultsA total of 152 participants (mean age 69 years) completed the DCE in the UK, Germany, and Spain. Treatment effectiveness was the main concern for the patients (difference in preference estimates between 8 and 32 months 1.443). Participants wanted to avoid pain that was not well controlled (preference dummy coding estimate − 1.157). Participants valued a change from an oral medication to an intravenous treatment (change in preference estimate − 0.416) more negatively than a change from a 1% to a 5% risk of infection (change in preference estimate − 0.313).ConclusionsThis study shows that treatment effectiveness and pain control were the most important attributes for patients with prostate cancer. These two attributes influenced more than 50% of their decision-making in this study. The risk of fatigue and mode of administration were least prioritised by patients. This study highlights the relative importance that Spanish, German, and British patients place on various aspects of treatment options for prostate cancer. Understanding patient preference and taking them into consideration shall help physicians when developing their treatment strategies for their patients.FundingJanssen.Electronic supplementary materialThe online version of this article (10.1007/s12325-018-0861-3) contains supplementary material, which is available to authorized users.
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