Rheumatic IMmune-Related Adverse Events in Patients Treated With Immune Check Point Inhibitors

Inclusion Criteria: * De novo symptoms of rheumatic disease or a flare of established rheumatic disease after \>/= 1 dose of treatment with an immune check point inhibitor * Adult patients (\> 18 years) * Subject capable of understanding and signing an informed consent form Exclusion Criteria: • Psychiatric or mental disorders, alcohol abuse or other substance abuse, language barriers or other factors which makes adherence to the study protocol difficult