This document (deliverable 3) is part of a package of documents produced in the course of a consultant study on cohort studies among people who are using drugs in the EU27, Norway and Turkey commissioned by the EMCDDA (contract no.: CT.20.HEA.0113.1.0 and CT.21.HEA.0129.1.0). The objective was to prepare an updated list of studies from the European overview produced between 2020 and 2021. The study authors, researchers and National Focal Points were contacted and asked to report studies, if any, published since then. Mortality cohort studies are a quickly moving topic that requires regular updating of information and data on a European basis.