Vinod Chandran, MBBS, MD, DM, PhD
Inhibition of the Janus kinase-signal transducer and activator of transcription (JAK-STAT) pathway by JAK inhibitors is efficacious in psoriatic arthritis (PsA). On the basis of the results of the pivotal SELECT-PsA 1 and SELECT-PsA 2 trials, upadacitinib, a selective JAK1 inhibitor, was recently approved for the treatment of PsA. However, data on longer-term disease control is still of interest. In a post hoc analysis of SELECT-PsA 1 and SELECT-PsA 2, Mease and colleagues assessed the proportion of patients achieving low disease activity or remission, as defined by validated measures such as the Disease Activity Index in Psoriatic Arthritis, Psoriatic Arthritis Disease Activity Scores, and minimal disease activity at 24 and 56 weeks. They showed that at week 24,a higher proportion of patients receiving 15 mg upadacitinib vs placebo achieved low disease activityon the Disease Activity Index in Psoriatic Arthritis (range, 35%-48% vs 4%-16%; P< .05) and remission (range, 7%-11% vs 0%-3%; P< .05), with the responses sustained until week 56. Thus, upadacitinib provides sustained disease control in PsA and is an effective oral therapy.
Advanced targeted therapies have proven safety and efficacy over conventional therapies, often dramatically improving signs and symptoms. However, it is also desirable that such expensive therapies also show benefit in other outcomes, such as work productivity and quality of life. To evaluate work productivity and daily activity impairment and health-related quality of life in patients with inflammatory arthritis (rheumatoid arthritis, n=95;PsA,n=69, and axial spondyloarthritis, n=95) treated with golimumab, Dejaco and colleagues conducted a prospective, multicenter study in Austria. A total of 110 of these patients were followed for 24 months. At 24 months after golimumab initiation, there was significant improvement in total work productivity, presenteeism, activity impairment, and quality-of-life scores. Thus, golimumab, in addition to reducing disease activity, improved work productivity, activity, and health-related quality of life in patients with inflammatory arthritis, including PsA.
Cardiovascular disease (CVD) remains a major comorbidity in patients with PsA. This observation was once again confirmed in an observational, cross-sectional, case-control study including 207 patients with PsA and 414 matched controls from France. Degboe and colleagues demonstrated that p atients with PsA had a higher prevalence of cardiovascular events and cardiovascular risk factors, such as high body mass index, triglyceride level, and hypertension, compared with controls. The proportion of patients with PsA who were estimated to have very high cardiovascular risk factors (≥10%) increased when SCORE (European Society of Cardiology Systematic Coronary Risk Evaluation) and QRISK2 (British Heart Foundation) equations considered the additional risk attributable to PsA. However, risk predictions scores such as SCORE and QRISK2 perform poorly in patients with PsA. To identify novel inflammatory and metabolic parameters associated with cardiovascular disease , Schwartz and colleagues l ooked at 18F-fluorodeoxyglucose(FDG) PET-CT uptakein a cross-sectional analysis of a prospective study including 39 patients with biologic-treatment-naive PsA and 56 age-sex matched controls without PsA. They found that coronary artery disease ( CAD) was significantly associated with visceral adiposity and FDG uptake in the bone marrow, liver, spleen, and subcutaneous adipose tissue. Thus, inflammatory and metabolic parameters, including visceral adiposity, potentially contribute to subclinical CAD in patients with PsA and may in the future be used to refine CVD risk and be targets for CAD preventive treatments.