“…Previously, researchers in the field of health policy have mainly focused on the appraisal criteria in the context of OMPs ( Zelei et al, 2016 ; Bourke et al, 2018 ; Picavet, et al, 2014a ; Szegedi et al, 2018 ; Nicod et al, 2017 ), arguments in favor or against a special reimbursement status for OMPs ( Simoens et al, 2012 ; Hughes et al, 2005 ; Picavet, et al, 2012b ), proposals concerning existing or conceptual VAFs tailored to the needs of OMPs ( Sussex et al, 2013b ; Wagner et al, 2016 ; Annemans et al, 2017 ; Schey et al, 2017 ), or discuss ethical, social, or other features of specific VAFs for OMPs ( Drummond and Towse 2014 ; Simoens 2014 ; Schlander et al, 2016 ; Towse and Garau 2018 ). Most recently, a study was published by Nicod et al mapping the different VAFs that jurisdictions have implemented ( Nicod et al, 2020 ). As of yet, however, no publication exists that provides an overview of the strengths and weaknesses that are associated with each of these VAFs.…”