Background: The Chronic Disease Self-Management Programme (CDSMP) intervention is an evidence-based program that aims to encourage citizens with a chronic condition, as well as their caregivers, to better manage and maintain their own health. CDSMP intervention is expected to achieve greater health gains in citizens with a low socioeconomic position (SEP), because citizens with a low SEP have fewer opportunities to adhere to a healthy lifestyle, more adverse chronic conditions and a poorer overall health compared to citizens with a higher SEP. In the EFFICHRONIC project, CDSMP intervention is offered specifically to adults with a chronic condition and a low SEP, as well as to their caregivers (target population). Study objective: The objective of our study is to evaluate the benefits of offering CDSMP intervention to the target population. Methods: A total of 2500 participants (500 in each study site) are recruited to receive the CDSMP intervention. The evaluation study has a pre-post design. Data will be collected from participants before the start of the intervention (baseline) and six months later (follow up). Benefits of the intervention include self-management in healthy lifestyle, depression, sleep and fatigue, medication adherence and health-related quality of life, health literacy, communication with healthcare professionals, prevalence of perceived medical errors and satisfaction with the intervention. The study further includes a preliminary cost-effectiveness analysis with a time horizon of six months. Conclusion: The EFFICHRONIC project will measure the effects of the CDSMP intervention on the target population and the societal cost savings in five European settings.