Effectiveness and safety of biological therapy in inflammatory rheumatic diseases

This thesis focuses on evaluating the effectiveness and safety of biological/targeted treatment in chronic inflammatory rheumatic diseases based on data from the ATTRA registry. The introductory chapters of the thesis give an overview of three rheumatic diseases - rheumatoid arthritis (RA), psoriatic arthritis (PsA) and axial spondyloarthritis (axSpA), characterising clinical manifestation, diagnosis, therapeutical options and current treatment guidelines. The work also contains a brief summary of information about planning, creating and maintaining a clinical registry and characterises specifics related to the analysis of registry data. The practical part of the thesis was aimed at two research questions. Recently, a treat-to-target (T2T) strategy was established for RA, PsA and axSpA. Studies from daily clinical practice concerning the advantage of following T2T over usual care are still lacking. Thus, the first goal of the thesis was to evaluate whether following a treat to target strategy after not reaching low disease activity within the first six months leads to a higher chance of meeting the treatment target at the twelve-month visit. Our second goal in the thesis was to evaluate the association between therapeutic response (achieving remission and drug retention) and patients'..