The group's work aims to foster research on Idiopathic Pulmonary Fibrosis (IPF), the most aggressive form of an Idiopathic Interstitial Pneumonia (IIP). Within the eurIPFreg we, the eurIPFreg steering committee and a growing number of external site investigators, aim to describe the natural course of IPF and other IIPs, to identify risk factors that are associated with the evolution of the disease and to sample biomaterials that may serve as underlying basis for translational research activities.