RT Journal Article SR Electronic T1 Society for Immunotherapy of Cancer clinical and biomarkers data sharing resource document: Volume I—conceptual challenges JF Journal for ImmunoTherapy of Cancer JO J Immunother Cancer FD BMJ Publishing Group Ltd SP e001389 DO 10.1136/jitc-2020-001389 VO 8 IS 2 A1 Sergio Rutella A1 Michael A Cannarile A1 Sacha Gnjatic A1 Bruno Gomes A1 Justin Guinney A1 Vaios Karanikas A1 Mohan Karkada A1 John M Kirkwood A1 Beatrix Kotlan A1 Giuseppe V Masucci A1 Els Meeusen A1 Anne Monette A1 Aung Naing A1 Vésteinn Thorsson A1 Nicholas Tschernia A1 Ena Wang A1 Daniel K Wells A1 Timothy L Wyant A1 Alessandra Cesano YR 2020 UL http://jitc.bmj.com/content/8/2/e001389.abstract AB The sharing of clinical trial data and biomarker data sets among the scientific community, whether the data originates from pharmaceutical companies or academic institutions, is of critical importance to enable the development of new and improved cancer immunotherapy modalities. Through data sharing, a better understanding of current therapies in terms of their efficacy, safety and biomarker data profiles can be achieved. However, the sharing of these data sets involves a number of stakeholder groups including patients, researchers, private industry, scientific journals and professional societies. Each of these stakeholder groups has differing interests in the use and sharing of clinical trial and biomarker data, and the conflicts caused by these differing interests represent significant obstacles to effective, widespread sharing of data. Thus, the Society for Immunotherapy of Cancer (SITC) Biomarkers Committee convened to identify the current barriers to biomarker data sharing in immuno-oncology (IO) and to help in establishing professional standards for the responsible sharing of clinical trial data. The conclusions of the committee are described in two position papers: Volume I—conceptual challenges and Volume II—practical challenges, the first of which is presented in this manuscript. Additionally, the committee suggests actions by key stakeholders in the field (including organizations and professional societies) as the best path forward, encouraging the cultural shift needed to ensure responsible data sharing in the IO research setting.