The primary endpoint of the pivotal phase III study of infliximab (IFX) s.c. demonstrated non-inferiority of s.c. to i.v. IFX, based on 28-joint DAS-CRP (DAS28-CRP) improvement at week (W) 22 (NCT03147248). This post-hoc analysis investigated whether numerical differences in efficacy outcomes at W30/54 were statistically significant, using conservative imputation methods.

Poor health-related quality of life (HRQoL) is well recognized in patients with CTD. We hypothesized that subgroups of patients across the spectrum of CTD experience different HRQoL patterns and aimed to determine patient-level characteristics associated with these different subgroups.

Telemedicine is increasingly used in rheumatology. While telemedicine guaranteed care of patients during the COVID-19 pandemic, it is now increasingly used to facilitate triage of patients, monitoring of disease activity, and patients' education. In addition, tele-visits as well as remote physio- and psychotherapy are replacing traditional face-to-face contacts between patients and their healthcare provider. While this may save resources in a world in which the gap between the demand and the provision of healthcare increases, there is also a danger of losing essential information, for example by non-verbal communication, that can only be retrieved during face-to-face contact in the office. In addition, it may be challenging to build a trusting relationship between patients and healthcare professionals by virtual means only. Globally acting companies that see market opportunities already amply offer 'simple' technical solutions for telemedicine. While such solutions may seem (economically) interesting at first glance, there is a risk of monopolization, leaving the most valuable parts of healthcare to a small number of profit-seeking companies. In this article, the opportunities and threats of telemedicine in rheumatology are debated. A possible way forward is to complement traditional face-to-face visits with information gained by telemedicine, in order to render these consultations more efficient rather than replacing personal contact by technology.

Since the start of the SARS-CoV-2 vaccination campaign, our knowledge of the effects of vaccines in people with inflammatory rheumatic diseases has remained incomplete. In particular, the effects of immunomodulatory therapies on vaccine success are poorly understood. Three notable papers from the past year have helped to fill these knowledge gaps.

The aim of this study was to identify factors associated with patients' and parents' reported satisfaction with JIA care, measured with the juvenile arthritis child and parent acceptable symptom state (JA-CASS and JA-PASS, respectively).

To study the association of serum IFNα2 levels measured by ultrasensitive single-molecule array (Simoa) and the IFN-I gene signature (IGS) with disease activity and determine whether these assays can mark disease activity states in a longitudinal cohort of childhood-onset SLE (cSLE) patients.

Pathological calcification of cartilage is a hallmark of osteoarthritis (OA). Calcification can be observed both at the cartilage surface and in its deeper layers. The formation of calcium-containing crystals, typically basic calcium phosphate (BCP) and calcium pyrophosphate dihydrate (CPP) crystals, is an active, highly regulated and complex biological process that is initiated by chondrocytes and modified by genetic factors, dysregulated mitophagy or apoptosis, inflammation and the activation of specific cellular-signalling pathways. The links between OA and BCP deposition are stronger than those observed between OA and CPP deposition. Here, we review the molecular processes involved in cartilage calcification in OA and summarize the effects of calcium crystals on chondrocytes, synovial fibroblasts, macrophages and bone cells. Finally, we highlight therapeutic pathways leading to decreased joint calcification and potential new drugs that could treat not only OA but also other diseases associated with pathological calcification.

We aimed at estimating the incidence and prevalence of SLE in northeastern Italy over the period 2012-20.

Takayasu arteritis (TAK) is a large-vessel vasculitis rarely reported in children and infants. Most articles on paediatric TAK have not focused on infants. We present the largest case series of infantile TAK, aiming to identify its demographic and clinical characteristics and compare them with existing data on older children.

Previous systematic reviews focused on the evidence of common risk factors for knee OA (KOA); however, the effect and strength of association between risk factors and KOA might be different between the two sexes. The aim of the present systematic review was to determine the current evidence on sex differences in the association between risk factors and KOA and their prevalence.

The B-cell depleting biologic, rituximab, is used to treat refractory autoimmune myositis. However, the beneficial effects of rituximab appear to outweigh the known contribution of B cells in myositis. We aimed to elucidate how myositis patients respond differently to rituximab and possible alternative mechanisms of action.