• Navina Gerlach, Matthias Michiels-Corsten, Annika Viniol, Tanja Schleef, Ulrike Junius-Walker, Olaf Krause, and Norbert Donner-Banzhoff.
• Department of General Practice, University of Marburg, Karl-von-Frisch-Straße 4, D-35043, Marburg, Germany. navina.gerlach@staff.uni-marburg.de.
• Bmc Fam Pract. 2020 Sep 4; 21 (1): 183.

BackgroundCollaborative care approaches between general practitioners (GPs) and pharmacists have received international recognition for medication optimization and deprescribing efforts. Although specialist providers have been shown to influence deprescribing, their profession so far remains omitted from collaborative care approaches for medication optimization. Similarly, while explorative studies on role perception and collaboration between GPs and pharmacists grow, interaction with specialists for medication optimization is neglected. Our qualitative study therefore aims to explore GPs', community pharmacists' and specialist providers' role perceptions of deprescribing, and to identify interpersonal as well as structural factors that may influence collaborative medication optimization approaches.MethodSeven focus-group discussions with GPs, community pharmacists and community specialists were conducted in Hesse and Lower Saxony, Germany. The topic guide focused on views and experiences with deprescribing with special attention to inter-professional collaboration. We conducted conventional content analysis and conceptualized emerging themes using the Theoretical Domains Framework.ResultsTwenty-six GPs, four community pharmacists and three community specialists took part in the study. The main themes corresponded to the four domains 'Social/professional role and identity' (1), 'Social influences' (2), 'Reinforcement' (3) and ´Environmental context and resources' (4) which were further described by beliefs statements, that is inductively developed key messages. For (1), GPs emerged as central medication managers while pharmacists and specialists were assigned confined or subordinated tasks in deprescribing. Social influences (2) encompassed patients' trust in GPs as a support, while specialists and pharmacists were believed to threaten GPs' role and deprescribing attempts. Reinforcements (3) negatively affected GPs' and pharmacists' effort in medication optimization by social reprimand and lacking reward. Environmental context (4) impeded deprescribing efforts by deficient reimbursement and resources as well as fragmentation of care, while informational and gate-keeping resources remained underutilized.ConclusionUnderstanding stakeholders' role perceptions on collaborative deprescribing is a prerequisite for joint approaches to medication management. We found that clear definition and dissemination of roles and responsibilities are premise for avoiding intergroup conflicts. Role performance and collaboration must further be supported by structural factors like adequate reimbursement, resources and a transparent continuity of care.

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