Background/Aims: Large scale adoption of integrated care for chronic patients constitutes a key milestone to accelerate adaptation of current healthcare systems to the evolving needs triggered by population ageing and high prevalence of chronic conditions. Lessons learnt from deployment experiences are being disseminated as "good practices". But, there is need for further assessment of implementation strategies in real world scenarios. Moreover, progresses achieved in disease-oriented integrated care cannot be automatically transferred to management of complex chronic patients (CCP). The protocol addresses five aims: 1) implementation of two integrated care interventions using a collaborative and adaptive case management (ACM) approach (i) Community-based management of CCP; and, ii) Integrated care for patients under long-term oxygen therapy (LTOT)); 2) adoption of information and communication technologies (ICT) required to support collaborative ACM; 3) to evaluate the impact of enhanced clinical health risk assessment and stratification; 5) to generate a roadmap for regional adoption of the CCP program.