How to Design Consent for Health Data Research? An Analysis of Arguments of Solidarity

The article discusses the impact different concepts of solidarity can have on debates on models of consent for non-interventional research. It introduces three concepts of solidarity that have been referenced in bioethical debates: a purely descriptive concept, a concept that claims some derivative value for most but not all practices of solidarity, as well as a clearly normative concept where solidarity is tied to justice and taken to ground moral duties. It shows that regarding the rivalling models of study-specific consent, tiered consent and broad consent, the first two concepts can be taken to favour tiered consent while only normative solidarity supports a model of broad consent-or an argument to allow non-interventional research without requiring consent at all. As normative solidarity is tied to considerations of justice, however, the argument appears less straightforward than one might expect: It presupposes that the research contributes to overcoming existing social injustices.