LAUSR

BACKGROUND Platforms are being constructed to stimulate cohort data sharing. Nevertheless, many policy barriers impede data sharing. Various interventions have been proposed to address these barriers, including incentive creation and data sharing mandates for researchers. AIM To understand funding agencies' perspectives on policy interventions to encourage data sharing. METHODS Members of funding agencies were recruited to participate in semi-structured interviews. Nearly all funding agencies are situated in European countries. Interview transcripts were analyzed through inductive content analysis. RESULTS Mandates for cohort data sharing are not supported by agencies due to data protection regulations and the preconditions for issuing mandates. Recommendation of platforms may be based on certification schemes, such as repository accreditation. Monitoring mechanisms for cohort data sharing are currently absent, which complicates assessing compliance of researchers with funding agencies' policies and evidence production. Funding agencies are not imposing conditions on data access committees. CONCLUSIONS Policy measures that, in some ways, restrict the decision-making authority of researchers in terms of data sharing are not generally supported. Concrete steps are proposed to enable evidence-based policy making. Incentive design is paramount if funding agencies do not wish to impose restrictions on the decision-making authority of researchers.