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Article History

Accepted: 29 October 2023

First Online: 15 November 2023

Declarations

:

: This study was funded by Biogen Spain S.L.U. The funder was not involved in the study design, data collection, analysis, interpretation of data, or the writing of this article.

: LGM and RMF are employees of Biogen Spain S.L.U. and hold shares or stocks as part of their remuneration. ALA, PMH, and MM are employees of Vivactis Weber, a company that received fees from Biogen Spain S.L.U. to develop this study.

: The present study conforms with the ethical principles of the Declaration of Helsinki. This study did not require approval by any ethics committee as according to Spanish law (“<i>Ley 14/2007, de 3 de julio, de Investigación biomédica</i>”) research projects carried out on human beings or their biological material have to be approved by a research ethics committee, excluding observational studies where patient treatment or intervention is not modified. The study was communicated to Farmaindustria (the National Trade Association of the pharmaceutical industry).

: According to Spanish law (“<i>Ley 41/2002, de 14 de noviembre, básica reguladora de la autonomía del paciente y de derechos y obligaciones en materia de información y documentación clínica el consentimiento informado</i>”), informed consent has to be signed only when the activity of the study can affect patient’s health status. Since our study is observational and patient data were obtained using an online anonymous survey, it was not necessary for caregivers to sign an informed consent in this study.

: By voluntarily completing the questionnaire, informal caregivers of Alzheimer´s disease patients gave their consent for the data to be used confidentially (only aggregated data are reported).

: The datasets may be available from the corresponding author upon reasonable request.

: The code for data cleaning and analysis may be available from the corresponding author upon reasonable request.

: LGM, RMF, and MM participated in the conception and design of the study. ALA, PMH, and MM participated in the acquisition of data. All authors participated in the analysis and interpretation of data. ALA and MM wrote the draft of the manuscript. All authors critically revised the manuscript and approved the final version to be published.