source: Developmental Medicine and Child Neurology

year: 2021

authors: Carey KA, Farrar MA, Kasparian NA, Street DJ, De Abreu Lourenco R

Aim: To understand the factors that most influence decision-making in the treatment of infantile spinal muscular atrophy (SMA).

Method: A discrete choice experiment was conducted among parents of people with SMA (parents), healthcare professionals (HCPs), and members of the Australian general population (GenPop). Respondents were asked to accept/reject treatment for an infant newly diagnosed with SMA in eight hypothetical scenarios, characterized by different combinations of the attributes of the treatment offered. The results were analyzed using probability analysis.

Results: Completed responses were provided from 1113 individuals (1024 GenPop, 21 parents, 68 HCPs). Respondents were more likely to accept treatments that improved functioning and mobility. Treatments with higher costs, invasive delivery, and risks of adverse events were accepted less often. Cost most affected treatment choices by HCPs and GenPop, while change in mobility and mode of administration were most influential for parents.

Interpretation: These results highlight the importance of understanding value for money and clinical impact in affecting treatment choice, which are crucial for effective planning of healthcare and the successful implementation of treatment programmes for SMA. What this paper adds Spinal muscular atrophy (SMA) treatments with a higher chance of improving functioning and mobility are preferred by the general population, parents, and healthcare professionals. Treatments with higher costs, invasive delivery, and risk of adverse events are less preferred. Willingness to pay for SMA treatments increases with impact on functioning.

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