期刊
CURRENT MEDICAL RESEARCH AND OPINION
卷 35, 期 5, 页码 785-792出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/03007995.2019.1574507
关键词
Chronic obstructive pulmonary disease; COPD; discrete choice experiment; patient preference; inhaler device; inhaler characteristics; convenience
资金
- Boehringer Ingelheim
Objectives: Understanding inhaler preferences may contribute to improving adherence in COPD patients and improving long-term outcomes. This study aims to identify and quantify preferences for convenience-related inhaler attributes in French moderate-to-severe COPD patients, with discrete choice experiment (DCE) methodology. Methods: Attributes were defined from a literature search, clinician and patient interviews: shape, dose insertion, dose preparation, dose release, dose confirmation, dose counter and reusability. An online DCE was conducted in respondents with self-reported COPD stage 2-4 recruited through a panel. The study questionnaire included twelve choice scenarios per respondent and questions on patient characteristics, treatment and disease severity. Statistical analyses used a mixed logit regression model with random effects. Utility scores were estimated for four types of inhalers: Inhaler A - soft mist inhaler; Inhaler B - reusable soft mist inhaler; Inhaler C - multi-dose dry powder inhaler; and Inhaler D - single dose dry powder inhaler. Results: The study was completed by 153 patients (50 females); respondents were 50.4 years old on average; 13 different inhaler devices were reported. The most preferred inhaler is L-shaped, has dose preparation with capsule insertion and a dose counter, and is reusable. Inhaler profiles A and B had the highest utilities (mean of 1.2533 and 0.9578 respectively) compared to inhaler C (0.6315) and D (0.2200). Conclusions: This study showed statistically significant results that the strongest drivers of preference in French users of inhalation devices for COPD are shape, dose counter and reusability. Convenience-related characteristics are important to patients and should be taken into account by clinicians prescribing these devices.
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