Nikos Dedes is a founding member and president of ‘Positive Voice’, the association of people living with HIV in Greece.

He is a former president of the European AIDS Treatment Group (EATG) and former coordinator of the Patient and Consumer Commission of the European Medicines Agency.

He is a member of the steering committee of the European Clinical Trials Network for HIV, member of the European treatment guidelines for HIV, member of the Advisory Committee on strategic and technical planning for HIV / AIDS of the WHO, member of the European Advisory Commission DIA (ACE) and the European Centre for Disease Prevention and Control (ECDC).