PRINTO designed the present study as a 5-year phase III single-blind, randomized clinical trial in children with newly diagnosed JDM: prednisone (PDN) versus PDN plus methotrexate, versus PDN plus Cyclosporine A…

The PReS Autoinflammatory Diseases’ Working Group, in collaboration with PRINTO designed the present survey to set up a series of Registries for the different Autoinflammatory diseases.

The PReS Vasculitis Working Group, in collaboration with PRINTO and with the EULAR support designed the present registry to validate the recently developed “EULAR/PreS endorsed criteria for the classification of childhood vasculitides”.

PRINTO designed the present survey to investigate if the PRINTO centres have families with paediatric rheumatic diseases where more cases of the same disease (e.g. JIA or JSLE or JDM etc) are present among brothers and/or sisters (affected sib pairs)

PRINTO designed the present trial to determine if the time to discontinuation of Methotrexate (6 versus 12 months) in Juvenile Idiopathic Arthritis, after the patient has reached clinical remission, influence the time to relapse…