A growing number of biopharmaceutical companies have been implementing patient-centric initiatives (PCIs). The Drug Information Association (DIA) and the Tufts Center for the Study of Drug Development (CSDD) collaborated on a study to gather data on the usage and impact of these PCIs to characterize company experience and impact. DIA and Tufts CSDD collaborated with 17 organizations to define PCIs used in clinical research and development and to quantify their use, and to define metrics in use to document impact and return on engagement (ROE) for these PCIs. The study used a mixed methods approach that consisted of an online survey, in-depth interviews, and literature review. Twenty-two unique companies responded to an on-line survey on the use of 23 PCIs identified by the study working group. PCIs most frequently implemented included patient organization landscape analysis, support of patient advocacy groups, use of patient advisory boards, and use of home nursing networks. Seven additional PCIs were found through a literature search and included in the group of PCIs for which impact measures were assessed. A total of 121 cases of use of the 30 PCIs and associated impact measures and impact data were gathered through literature review, in-depth interviews with the study companies, and in-depth interviews with organizations identified in the literature as having experience with patient engagement in clinical research as well as with patients who had participated in clinical trials. Analysis of the 121 case studies resulted in a list of 666 measures of impact (metrics) in use for 13 of the PCIs. Assessment of overall ROE for these PCIs found that PCIs such as support of patient advocacy groups and use of patient advisory boards indicated the greatest ROE, whereas costlier, more complex PCIs such as digital medicine and gaming indicated relatively low ROE. Activity around PCIs among the companies studied was widespread, with initiatives more frequently planned and piloted than implemented at the time of this study. Measures of impact have been identified and can be used to assess ROE, providing insights to facilitate the adoption of PCIs of highest impact for patients and biopharmaceutical research organizations. [ABSTRACT FROM AUTHOR]