Professor Leonardo Fontenelle is recognised as an expert in the area of obsessive-compulsive, anxiety and related disorders and biological psychiatry. Prof. Fontenelle's findings have established the Rio de Janeiro team as one of the leading OCD research groups in Brazil and in the World. Prof. Fontenelle has published more than 180 peer-reviewed papers, mostly in the OCD clinical arena, which have resulted in more than 2500 citations. He has editorial roles in a number of peer-reviewed journals, including the most traditional Brazilian journal (Brazilian Journal of Psychiatry, Editor-in-chief), the most influential Latin American medical journal (Revista Brasileira de Psiquiatria, Associate editor), and the most important specialized journal in his research area (Journal of Obsessive-Compulsive and Related Disorders, Associate editor), among others.
Through the Brazilian Consortium of Obsessive-Compulsive Spectrum Disorders, Prof. Fontenelle also helped establishing the biggest and most detailed databank of OCD patients in the world (n=1001). His work has been covered both nationally and internationally, with research findings appearing on ABC news, BBC news, Daily Mail, and Huffington Post. On the community level, Prof. Fontenelle has helped creating the Rio de Janeiro Association of families, friends and people with OCD and Tourette's syndrome (RIOSTOC) and the Rio de Janeiro's State OCD awareness week, which has been widely advertised in the local media.