AUTHOR=Martin Dominique E. , Abbasi Ali , Fadhil Riadh A. S. , Forsythe John L. R. , Le Dorze Matthieu , Locke Jayme E. , Muller Elmi , Oniscu Gabriel C. , Opdam Helen , Rockell Karen , Siebelink Marion J. , Then Shih-Ning , Tumilty Emma TITLE=The INTEGRITY guidelines – ethical guidance for research involving deceased donation and transplantation JOURNAL=Transplant International VOLUME=Volume 39 - 2026 YEAR=2026 URL=https://www.frontierspartnerships.org/journals/transplant-international/articles/10.3389/ti.2026.17151 DOI=10.3389/ti.2026.17151 ISSN=1432-2277 ABSTRACT=The absence of ethical guidance for research that involves actual and prospective deceased donors of organs, cells or tissues for transplantation presents challenges for researchers, donation agencies, and participants in such research. To address this, the European Society for Organ Transplantation (ESOT), together with the International Society for Organ Donation Professionals (ISODP) and The Transplantation Society (TTS), convened an interdisciplinary, multinational team to develop the first international guidelines for ethical practice in research involving deceased donation and transplantation activities (INTEGRITY). The guidelines were developed over twelve months via an international, iterative consultative process. The resultant principles are presented in this article.