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The COST Action TREATme network is an initiative to build a European network on individualized psychotherapy treatment of young people with mental disorders.

TREATme arises from nationally funded research groups and  brings together researchers, clinicians, non-governmental organizations, and policy makers.

About the project

The COST Action TREATme is a pan-European multidisciplinary network with participants  from Europe and beyond, focusing on an urgent topic in psychotherapy research. The Action promotes coordinated and collaborative research activities and funding applications on personalized treatment for young people with mental health problems in Europe. 

50% of lifetime mental health disorders start by the age of 14, and the number increases to 75% by the age of 24. Mental disorders in youth are associated with direct and indirect costs including personal distress, costs to family and friends, high healthcare costs, barriers to employment and job performance, poverty and economic deprivation and social exclusion.

Psychotherapy works for the most frequent mental disorders such as anxiety and depression. Different psychotherapy modalities work on average equally well. However, little is known about how different treatment modalities work and for whom. Thus, empirically informed individualized treatment cannot be delivered.


The main aim of TREATme is to establish a sustainable European multidisciplinary researcher network focusing on individualized psychotherapy for young people with mental disorders.

Further, the aims are to exchange and disseminate specific knowledge about important factors that will improve outcome in different youth psychotherapy modes, as well as about how to best design psychotherapy studies that can increase knowledge about  what works for whom  and  how  in  youth  psychotherapy.

The Action reviews the state of the art and identifies putative specific markers and mechanisms of change in different psychotherapy modalities, as well as suitable psychotherapy process and treatment measures, and study designs.

Research capacity increases by supporting a high proportion of Early Careers Investigators (ECI) and especially female and Inclusiveness Target Countries (ITC) researchers. Shared knowledge is disseminated to policy makers and stakeholders. 

The Action will run for 4 years, from 2017 to 2021, but the collaboration will continue after the end of the Action.


The Action is funded by COST (European Cooperation in Science and Technology), a funding organisation for research and innovation networks.


The participating parties in the Action TREATme consists of 30 European countries.

Read more about TREATme

Published Nov. 11, 2020 2:03 PM - Last modified Dec. 11, 2020 1:27 PM


Action Chair

Administrative coordinator