European League Against Rheumatism (EULAR) recommendations for the management of psoriatic arthritis with pharmacological therapies: 2015 update

Clinical characteristics, disease activity, functional status, and quality of life results of patients with psoriatic arthritis using biological and conventional synthetic disease-modifying antirheumatic drugs

Objectives

This study aims to compare the clinical characteristics, disease activity, and quality of life (QoL) of patients with psoriatic arthritis (PsA) who use biological and conventional synthetic disease-modifying antirheumatic drugs (DMARDs) in a nationwide cohort throughout Turkey.

Patients and methods

A total of 961 patients (346 males, 615 females; mean age 46.9±12.2 years; range, 18 to 81 years) with PsA according to the classification criteria for PsA were included in the study. The patients’ demographic and clinical characteristics, physical examination results, Disease Activity Score 28, Disease Activity Index for Psoriatic Arthritis and Bath Ankylosing Spondylitis Disease Activity Index (BASDAI), Psoriasis Area and Severity Index, Bath Ankylosing Spondylitis Functional Index, Bath Ankylosing Spondylitis Metrology Index, Hospital Anxiety and Depression Scale, Health Assessment Questionnaire, Psoriatic Arthritis Quality of Life (PsAQoL), and short form-36 scores were all recorded.

Results

Of the patients, 23% underwent biological DMARD (bDMARD) monotherapy, 42% underwent conventional synthetic DMARD (csDMARD) monotherapy, 10% underwent a csDMARD combination therapy, and 10% underwent a combination bDMARD and csDMARD treatment. The visual analog scale (VAS pain), patient global assessment, physician global assessment, and BASDAI scores were found to be lower among patients using combination treatment of csDMARD and bDMARD, while the swollen joint count was found to be lower among patients using bDMARD. The PsAQoL score was found to be the lowest among patients not using any medication and the highest among those using bDMARD.

Conclusion

In our study, patients with PsA were successfully treated with both csDMARD and bDMARD monotherapy. When the biological treatments used for PsA were compared with csDMARD, it was found that biological treatments had a positive effect on both disease activity and the QoL. Combinations of csDMARDs and bDMARDs were preferred in cases in which the disease activity was still high or increased. Because of the highest efficacy of the combined treatment, we highly suggest increasing the number of patients on combined treatment.

Magnetic Resonance Imaging of Enthesitis in Spondyloarthritis, Including Psoriatic Arthritis-Status and Recent Advances

Enthesitis, inflammation at the attachment sites of tendons, ligaments, fascia, and joint capsules to bones plays a critical role in the pathogenesis of spondyloarthritis (SpA), including psoriatic arthritis (PsA). Magnetic resonance imaging (MRI) has aided in a better understanding of pathophysiology, early diagnosis, prognostication, therapeutic outcomes, and follow up of enthesitis. The concept of enthesitis as a focal insertional pathology has transformed over the past decade, with the help of MRI, to a more widespread entity involving both bone and surrounding soft tissues. The utility of MRI in the differential diagnosis of suspected enthesitis has recently been explored. With the emergence of the treat-to-target concept, and a domain-based approach in the management of SpA, objective and sensitive monitoring of response to targeted therapy becomes prudent. Properties like high sensitivity, ability to image intra-osseous pathology along with surrounding structures exemplify the utility of MRI technology. Considering the lack of a comprehensive, validated MRI score the Outcome Measures in Rheumatology (OMERACT) MRI in Arthritis Working Group, informed by a systematic literature review, developed the first international, consensus-based MRI-scoring system, combined with MRI definitions of pathologies for enthesitis in patients with spondyloarthritis (SpA) and PsA. An atlas with representative images of each grade of the scoring system was subsequently developed by the group to aid readers interested in using the heel enthesitis MRI scoring system (HEMRIS). The HEMRIS can find utility in clinical trials targeting enthesitis as the primary outcome. MRI also finds value for global assessment of the total burden of enthesitis. The concept of whole-body MRI (WBMRI), enabling visualization of entheses throughout the body using a single image is relatively new. The MRI whole-body score for inflammation in peripheral joints and entheses (MRI-WIPE) is a promising scoring system, which is undergoing further testing in clinical trials and longitudinal cohorts evaluating global measures of inflammation at entheses. This review discusses the role of MRI in diagnosis and monitoring of enthesitis in SpA and PsA, along with recent advances in the field, based on published literature.

Psoriatic arthritis and COVID-19 pandemic: Consequences in medical treatment?

The COVID‐19 pandemic has a strong negative impact on human society worldwide. Patients with immune‐mediated disease may be prone to an increased risk of infection and/or more severe course. We review the available data for patients with psoriatic arthritis (PSA) and systemic treatments. Current treatment options are summarized. Based upon the experience with COVID‐19, the following problems are addressed: (a) Can systemic treatment reduce comorbidities of PsA that are also comorbidities for COVID‐19? Does systemic medical treatment pose an increased risk of infection with SARS‐CoV‐2? Does systemic drug therapy have an impact on the risk of pulmonary fibrosis—a factor with strong negative impact on COVID‐19 outcome? Small molecules, inhibitors of tumor necrosis factor alfa, interleukin, and JAK inhibitors are considered. The data are inhomogeneous for the multiple drugs used in PsA. Although the risk for severe upper airway tract infections during clinical controlled trials was mostly in the range of placebo, these data have been obtained before the COVID‐19 pandemic and should be interpreted with caution. Some biologics demonstrated an antifibrotic activity in vitro and in animal disease models. None of the biologics is indicated during an active infection with fever. In nonsymptomatic PsA patients, systemic drug therapy can be continued.

Real Life Efficacy and Safety of Secukinumab in Biologic-Experienced Patients With Psoriatic Arthritis

Background: Real world evidence data regarding secukinumab (SEC) use in biologic-experienced patients with psoriatic arthritis (PsA) are scarce. Objectives: To assess the real life survival, safety and efficacy of SEC in biologic-experienced patients with PsA. Methods: All biologic-experienced PsA patients treated with SEC in 2 University Rheumatology Units were included (3/2016-12/2018). Patients' and disease characteristics were recorded at baseline and during SEC therapy. Results: 75 patients were included; 76% were females with a mean age of 53.9 years, median disease duration of 6.7 years and median SEC treatment duration of 11.1 months. At baseline, 97% had peripheral arthritis, 42% axial involvement, 22% enthesitis, and 12% dactylitis. Regarding previous biologic exposure, 48 (64%) had been exposed to anti-tumor necrosis factor (TNF) agents only, 5 (7%) to the interleukin (IL)-12/23 inhibitor (Ustekinumab-UST) only while 22 (29%) both to anti-TNFs and UST. Fifty-three percent received SEC in combination with non-biologics and 35% with glucocorticoids, respectively. During follow-up, statistically significant improvement in different disease activity indices were noted (DAS28-CRP, DAPSA, BASDAI). SEC survival rate at the end of follow-up was 64% (48/75), without difference between patients exposed to anti-TNFs only (67%) vs. anti-TNFs and UST (68%) as well as to 1 vs. ≥2 anti-TNFs. The rate of serious adverse events and serious infections during follow-up was 4.8 and 1.2/100 patient-years, respectively. Discussion: In real life, in biologic-experienced patients with PsA, SEC displayed a high retention rate, regardless of the type, and number of previous biologics (anti-TNFs ± anti-IL12/23), without significant side effects.

Renal disorders in rheumatologic diseases: the spectrum is changing (part 2. Arthridides)

This review is devoted to rheumatologic diseases mainly characterized by different types of arthritis. They may involve also different organs, including the kidney, but renal disease is more frequently caused by the nephrotoxicity of drugs to relieve pain or to interfere with the pathophysiology of the underlying disease. Rheumatoid arthritis is the prototype of arthropathies. This autoimmune disease mainly attacks joints, tendons and ligaments but can also involve internal organs including the kidney. Psoriatic arthritis is a complex disease in which psoriasis, a chronic inflammatory disease, is associated with the development of peripheral arthritis or spondylitis. The disease or its treatment may lead to kidney complications. Gout is a form of inflammatory arthritis which is characterized by an increase in the serum uric acid deposits in and around the joints of the extremities, the so called tophi. The disease is often associated with a metabolic syndrome with diabetes, obesity, hypertension, and cardiovascular disease. Kidney injury is frequent. It may be caused by kidney stones, urinary tract obstruction, tubulointerstitial and vascular lesions leading to CKD and renal failure.

Efficacy and safety of switching from reference adalimumab to SB5 in a real-life cohort of inflammatory rheumatic joint diseases

OBJECTIVE

SB5 showed comparable efficacy and safety profile in respect to adalimumab originator (ADA) in randomized clinical trials of rheumatoid arthritis (RA) and psoriasis. We aimed to describe the efficacy and safety of SB5 after switching from ADA in RA, axial spondyloarthritis (axSpA), psoriatic arthritis (PsA) and juvenile idiopathic arthritis (JIA) patients.

METHOD

Adult RA, PsA, axSpA, JIA patients treated with ADA for at least 6 months, switched to SB5 in stable clinical conditions, were eligible. Data on safety, activity indexes and patient-reported outcomes were collected at baseline, 3 and 6 months after switching.

RESULTS

Eighty-two patients (19 RA, 28 PsA, 32 axSpA and 3 JIA; 45 females, mean age 54 ± 14 years, disease duration 13 ± 7 years, ADA duration 6 ± 3 years) were enrolled. RA patients showed stable conditions, while PsA patients showed an increase in both HAQ, DAS28(CRP) and DAPSA and axSpA patients an increase in VAS pain, VAS patient disease activity and ASDAS, both at 3 months. There were changes in the concomitant medications profile, with regression of activity indexes increases at 6 months. Adverse events were reported by 33.7% patients at 3 months and 16.6% patients at 6 months, mostly disease flares and infectious events. Two patients stopped SB5.

CONCLUSIONS

Despite temporary changes in the concomitant medication profile for mild disease flares, our real-life data replicate the safety profile of switching from ADA to SB5 in RA, with additional data for its applicability in PsA and axSpA patients, further supporting switching to biosimilars in treating inflammatory rheumatic conditions. Key Points • Switching from adalimumab originator to SB5 is feasible in real life rheumatic inflammatory joint diseases. • Mild disease flares can present after switching from originator adalimumab to SB5, in particular in axial spondyloarthritis and psoriatic arthritis. • Changes in concomitant medications profile allows the control of minor disease flares presenting after switching from adalimumab originator to SB5.

Safety and Efficacy of Tofacitinib in Patients with Active Psoriatic Arthritis: Interim Analysis of OPAL Balance, an Open-Label, Long-Term Extension Study

Introduction

Tofacitinib is an oral Janus kinase inhibitor for the treatment of psoriatic arthritis (PsA). We report the interim safety, tolerability, and efficacy of tofacitinib in PsA patients in OPAL Balance, a 3-year, open-label, long-term extension study (data cut-off: August 2017; database not locked, data may change).

Methods

Eligible patients from two phase (P) 3 (P3) tofacitinib PsA studies (OPAL Broaden, NCT01877668; OPAL Beyond, NCT01882439) entered OPAL Balance ≤ 3 months after completing the P3 study or discontinuing for reasons other than study-drug-related adverse events (AEs). Patients received open-label tofacitinib 5 mg twice daily (BID), with adjustments to 10 mg BID permitted post-month (M) 1. Certain concomitant conventional synthetic disease-modifying antirheumatic drugs were allowed. Primary endpoints were incidence/severity of AEs and laboratory abnormalities, and changes from baseline in laboratory parameters (reported up to M36 and M30, respectively). Efficacy (clinical/patient-reported outcomes) was reported through M30.

Results

A total of 686 patients were treated; at data cut-off, 68.2% remained in the study. Mean (range) treatment duration was 641 (1–1032) days; total treatment duration was 1153.2 patient-years. By M36, 79.6, 13.8, and 8.6% of patients reported AEs, serious AEs, and discontinuations due to AEs, respectively. Five deaths occurred; one within the risk period (incidence rate [IR; patients with events/100 patient-years] 0.1). IRs for AEs of special interest were: all (non-serious and serious) herpes zoster, 1.7; serious infections, 0.9; opportunistic infections, 0.3 (all disseminated/multi-dermatomal herpes zoster); malignancies excluding non-melanoma skin cancer (NMSC), 0.8; NMSC, 1.0; major adverse cardiovascular events, 0.3; pulmonary embolisms, 0.1; and arterial thromboembolisms, 0.4. No patients had deep vein thrombosis. Alanine aminotransferase and aspartate aminotransferase levels were elevated  ≥  3-fold the upper limit of normal in 4.0 and 2.2% of patients, respectively. Changes in laboratory parameters were generally stable over time, although lymphocyte counts decreased slightly. Efficacy was maintained through M30.

Conclusions

In this interim analysis of OPAL Balance, tofacitinib safety and efficacy in patients with PsA appeared to be consistent with those of the P3 studies. Efficacy was maintained over time.

Trial Registration

ClinicalTrials.gov identifier: NCT01976364.

Electronic Supplementary Material

The online version of this article (10.1007/s40744-020-00209-4) contains supplementary material, which is available to authorized users.

In many countries, tofacitinib is an approved medicine that can be used to treat psoriatic arthritis (PsA). In the study reported here (OPAL Balance), adult patients with PsA took tofacitinib for up to 3 years. We report a planned interim analysis, i.e., an analysis of information collected before the study finished. This early information suggests that the safety of tofacitinib, and how well it improved symptoms and quality of life (efficacy), was similar in this long study as in shorter studies. Information from the finished study will be reported later. OPAL Balance started on 17 February 2014. This interim analysis includes information collected by 31 August 2017. Before joining, patients had finished a 6-month or 12-month tofacitinib study (OPAL Broaden or OPAL Beyond). Patients in OPAL Balance took a 5 mg tofacitinib pill twice a day, but if PsA symptoms did not improve after 1 month, they could take a 10 mg pill twice a day. They could also take other medicines (including methotrexate or corticosteroids). Of the 686 patients who took tofacitinib, 546 (80%) experienced side effects over 3 years. These were considered serious for 95 patients (14%) and caused 59 patients (9%) to leave the study. Five patients died from causes not related to tofacitinib. Known tofacitinib side effects, including shingles (herpes zoster), serious infections (needing hospitalization), infections in patients with weakened immune systems, cancer, heart (cardiovascular) problems, and vein blockages (embolisms), were each reported by fewer than 20 patients. Most blood test results and tofacitinib efficacy were stable over 2.5 years.

Impact of persistence with tumour necrosis factor inhibitors on healthcare resource utilization and costs in chronic inflammatory joint diseases

AIM

To assess persistence with subcutaneous (SC) tumour necrosis factor (TNF) inhibitors as well as the impact of persistence on healthcare resource utilization (HCRU) and costs in patients with chronic inflammatory joint diseases.

METHODS

In this cohort study using population-based French claims data (from 2011 to 2014), we measured persistence with SC TNF inhibitors within 12 months (M0-12) following treatment initiation in treatment-naïve and treatment-experienced users (divided into three cohorts: rheumatoid arthritis [RA], ankylosing spondylitis [AS] and psoriatic arthritis [PsA]). Persistent patients were propensity score matched to nonpersistent patients at M12. The impact of persistence status on HCRU and costs was assessed during M12-24.

RESULTS

Of treatment-naïve (n = 3,804) and treatment-experienced (n = 2,279) users, only 56.1% and 46.8% were persistent at M12, respectively. Nonpersistent patients had more outpatient visits, computerized tomography scans, spine or joint magnetic resonance imaging procedures and disease-related hospitalizations, while persistent patients had more rheumatologist visits. Nonpersistent patients had lower drug costs but higher nondrug-related healthcare and hospitalization costs than persistent patients. In AS and PsA, overall healthcare costs were similar in persistent and nonpersistent patients. In RA, overall healthcare costs were lower in persistent patients (15,753€ vs 17,590€ in treatment-naïve and 17,622€ vs 21,177€ in treatment-experienced).

CONCLUSION

Persistence with SC TNF inhibitors within first 12 months following treatment initiation was low in both treatment-naïve and treatment-experienced patients. Differences were observed in distribution of costs between persistent and nonpersistent patients, showing that nonpersistence with SC TNF inhibitors can lead to increased HCRU and higher costs.

EULAR recommendations for the management of psoriatic arthritis with pharmacological therapies: 2019 update

OBJECTIVE

To update the European League Against Rheumatism (EULAR) recommendations for the pharmacological treatment of psoriatic arthritis (PsA).

METHODS

According to the EULAR standardised operating procedures, a systematic literature review was followed by a consensus meeting to develop this update involving 28 international taskforce members in May 2019. Levels of evidence and strengths of recommendations were determined.

RESULTS

The updated recommendations comprise 6 overarching principles and 12 recommendations. The overarching principles address the nature of PsA and diversity of both musculoskeletal and non-musculoskeletal manifestations; the need for collaborative management and shared decision-making is highlighted. The recommendations provide a treatment strategy for pharmacological therapies. Non-steroidal anti-inflammatory drugs and local glucocorticoid injections are proposed as initial therapy; for patients with arthritis and poor prognostic factors, such as polyarthritis or monoarthritis/oligoarthritis accompanied by factors such as dactylitis or joint damage, rapid initiation of conventional synthetic disease-modifying antirheumatic drugs is recommended. If the treatment target is not achieved with this strategy, a biological disease-modifying antirheumatic drugs (bDMARDs) targeting tumour necrosis factor (TNF), interleukin (IL)-17A or IL-12/23 should be initiated, taking into account skin involvement if relevant. If axial disease predominates, a TNF inhibitor or IL-17A inhibitor should be started as first-line disease-modifying antirheumatic drug. Use of Janus kinase inhibitors is addressed primarily after bDMARD failure. Phosphodiesterase-4 inhibition is proposed for patients in whom these other drugs are inappropriate, generally in the context of mild disease. Drug switches and tapering in sustained remission are addressed.

CONCLUSION

These recommendations provide stakeholders with an updated consensus on the pharmacological management of PsA, based on a combination of evidence and expert opinion.

Comparative Persistence of Methotrexate and Tumor Necrosis Factor Inhibitors in Rheumatoid Arthritis, Psoriatic Arthritis, and Ankylosing Spondylitis

OBJECTIVE

The role of methotrexate (MTX) for the treatment of spondyloarthritis (SpA) remains uncertain. Aims were to compare MTX and tumor necrosis factor inhibitor (TNFi) persistence in spondyloarthritis versus rheumatoid arthritis (RA) and to determine whether concomitant conventional synthetic disease-modifying antirheumatic drug (csDMARD) use is associated with improved TNFi persistence in SpA.

METHODS

This retrospective cohort study using Optum's deidentified Clinformatics Data Mart Database 2000-2014 identified patients with RA, psoriatic arthritis (PsA), and ankylosing spondylitis (AS) without prior biologic use who were initiating MTX or a TNFi. Cox proportional hazards models compared time to medication discontinuation over the next 2 years between patients with RA, PsA, or AS, adjusting for potential confounders. In similar analyses stratified by disease, Cox models were used to assess whether concomitant use of csDMARD was associated with TNFi persistence.

RESULTS

We identified 31,527 MTX initiators (26,708 RA, 2939 PsA, 1880 AS) and 34,651 TNFi initiators (24,134 RA, 6705 PsA, 3812 AS). MTX was discontinued sooner in patients with PsA [adjusted HR (aHR) 1.10, 95% CI 1.04-1.16] and AS (aHR 1.23, 1.16-1.31) versus RA, while TNFi were discontinued at similar rates in RA and AS and discontinued later in PsA (aHR 0.93, 0.89-0.97). Concomitant use of MTX (compared to no csDMARD) was associated with lower rates of TNFi discontinuation in RA (aHR 0.85, 0.80-0.89), PsA (aHR 0.81, 0.74-0.89), and AS (aHR 0.79, 0.67-0.93).

CONCLUSION

MTX discontinuation occurs sooner in patients with PsA and AS versus RA. Concomitant use of MTX with a TNFi, however, is associated with improved TNFi persistence in all 3 diseases.

Golimumab as the First-, Second-, or at Least Third-Line Biologic Agent in Patients with Rheumatoid Arthritis, Psoriatic Arthritis, or Ankylosing Spondylitis: Post Hoc Analysis of a Noninterventional Study in Germany

INTRODUCTION

While golimumab (GLM) has demonstrated efficacy in rheumatoid arthritis (RA), psoriatic arthritis (PsA), and ankylosing spondylitis (AS) in several randomized clinical trials with biologic-naïve patients, observational data from biologic-experienced patients are sparse. We aimed to assess the effectiveness of GLM used as the first-, second-, or at least third-line biologic agent in RA, PsA, and AS patients in a real-world setting.

METHODS

Post hoc analysis of the noninterventional, prospective, 24-month GO-NICE study of RA, PsA, and AS patients who initiated GLM 50 mg subcutaneously once monthly in a real-world setting in Germany.

RESULTS

In 1454 patients with RA, PsA, or AS, GLM was administered as the first-line (n = 305, 286, 292, respectively), second-line (n = 104, 136, 130, respectively), or at least third-line (n = 64, 79, 58, respectively) biologic agent. In RA patients (n = 473), the time since first diagnosis was 9.7, 10.1, and 14.3 years, respectively. The DAS28 score at BL was 5.0, 4.9, and 5.1 in patients using GLM as a first-, second-, and third-line biologic agent, respectively, and dropped significantly in all groups. After 3 months of treatment, 27.5%, 19.5%, and 14.5% of patients were in remission; the corresponding values after 24 months were 45.3%, 50.0%, and 33.3%, respectively. In PsA patients (n = 501), time since fist diagnosis was 12.4, 13.7, and 13.8 years, respectively. Based on PsARC, a response was achieved at 24 months in the first-, second-, and third-line use of GLM in 76.4%, 51.0%, and 50.0% of the patients. In AS patients (n = 480), the time since first diagnosis was 9.4, 9.8, and 12.4 years in patients using GLM as the first-, second-, and at least third-line biologic agent, respectively. After 24 months of treatment, the mean BASDAI scores decreased significantly (p < 0.001 vs. BL) to 2.1, 2.9, and 2.9 in the patients using GLM as the first-, second-, and at least third-line treatment, respectively.

CONCLUSIONS

Golimumab is an effective treatment in patients with RA, PsA, and AS, irrespective of any pretreatment with biologic agents.

STUDY REGISTRATION

ClinicalTrials.gov NCT01313858.

Genotoxic potential of a novel PDE-4B inhibitor Apremilast by chromosomal aberration and micronucleus assay in mice

Objective

Researchers have confirmed that chronic administration of drugs at high doses causes genotoxicity which serve as first step in development of cancers. Apremilast, a phosphodiesterase-4 inhibitor is Food and Drug Administration (FDA) approved drug for Psoriatic Arthritis. The present study designed to conduct genotoxicity testing using the genotoxic study which give simple, sensitive, economical and fast tools for the assessment of damage of genetic material.

Methods

To conduct genotoxicity study of Apremilast, 60 Swiss albino male mice divided into 6 groups (n = 10). Group1 served as a normal control group without any treatment, Group 2 treated as a disease control and administered with cyclophosphamide 40 mg/kg, IP. Group 3, 4, 5 and 6 treated as test groups and received 10, 20, 40 and 80 mg/kg/day Apremilast respectively. The total duration of study was 13 weeks. At termination day animals were sacrificed and chromosomal aberration assay (BMCAA) and micronucleus assay (BMMNA) were performed to know the genotoxicity potential of Apremilast.

Results

The results indicates significant rise in chromosomal aberrations (CA) frequency in bone marrow cells and decrease in the MI of the disease control animals as well as Apremilast treated groups. Further significant (p < 0.001; p < 0.0001) increase in score of micronucleated polychromatic erythrocytes (MNPCEs) and percentage of micronucleated PCEs per 1000 PCEs and decrease in the ratio of polychromatic/normochromatic erythrocytes (PCE/NCE) was observed in micronucleus assay. Genotoxic effect increases with the increase of Apremilast dose. Conclusion: Finding of present indicates that Apremilast shows genotoxic potential on high administration although further detailed toxicity studies required for confirmations.

Mixed methods study of clinicians' perspectives on barriers to implementation of treat to target in psoriatic arthritis

OBJECTIVES

In treat to target (T2T), the patient is treated to reach and maintain specified and sequentially measured goals, such as remission or low disease activity. T2T in psoriatic arthritis (PsA) has demonstrated improved clinical and patient-reported outcomes and is recommended in European guidelines. However, most clinicians do not use T2T in PsA. This study examined the barriers and enablers to implementation in practice.

METHODS

Sequential mixed methods comprising a qualitative design (interviews and focus group) to inform a quantitative design (survey). Qualitative data were analysed thematically, and quantitative statistics were analysed descriptively.

RESULTS

Nineteen rheumatology clinicians participated in telephone interviews or a face-to-face focus group. An overarching theme 'Complexity' (including 'PsA vs Rheumatoid Arthritis', 'Measurement' and 'Resources') and an underpinning theme 'Changes to current practice' (including 'Reluctance due to organisational factors' and 'Individual determination to make changes') were identified. 153 rheumatology clinicians responded to an online survey. Barriers included limited clinical appointment time to collect outcome data (54.5%) and lack of training in assessing skin disease (35%). Enablers included provision of a protocol (86.4%), a local implementation lead (80.9%), support in clinic to measure outcomes (83.3%) and training in T2T (69.8%). The importance of regular audit with feedback, specialist PsA clinics and a web-based electronic database linked to hospital/national information technology (IT) systems were also identified as enablers.

CONCLUSIONS

Implementation of T2T in PsA requires an integrated approach to address the support, training and resource needs of individual clinicians, rheumatology teams, local IT systems and service providers to maximise success.

Novel and reliable DACTylitis glObal Sonographic (DACTOS) score in psoriatic arthritis

OBJECTIVES

Dactylitis is one of the most typical features of psoriatic arthritis (PsA), with a high lifetime prevalence and inclusion in PsA clinical indices. Musculoskeletal ultrasonography (Msk-US) can readily detect inflammatory involvement of finger anatomical structures particular to dactylitis and monitor therapeutic effects. In this study, we aim to identify the characteristic lesions in PsA dactylitis of the hands, assess the reliability of Msk-US in scoring those lesions and develop a DACTylitis glObal Sonographic (DACTOS) score.

METHODS

After a systematic literature review on the use of Msk-US in PsA dactylitis, 12 rheumatologists participated in a three-round Delphi procedure and consensus meeting to agree on the sonographic elementary lesions characterising dactylitis and on the composition of a global sonographic score. Then, a web-based and a patient-based intra-rater and inter-rater reliability exercise was performed to assess those lesions included in the score.

RESULTS

DACTOS score was obtained by summing the scores of each lesion selected in the Delphi survey: subcutaneous soft tissue oedema, flexor tenosynovitis, peritendon extensor inflammation and synovitis. The DACTOS score ranges from 0 to 25. In the reliability exercises, we obtained moderate-to-excellent agreement for the sonographic lesions included in the score.

CONCLUSIONS

The novel DACTOS score is a reliable measure to interpret the multiple characteristic sonographic features of dactylitis. The DACTOS score provides a useful global analysis of dactylitis of the hand and can represent a support to clinical diagnosis as well as a useful tool for the management and research in patients with PsA with dactylitis.

Effectiveness of steroid injection for hand psoriatic dactylitis: results from a multicentre prospective observational study

OBJECTIVE

To assess the effectiveness of steroid injection (local treatment, LT) into the digital flexor tendon sheath of dactylitis in psoriatic arthritis (PsA) patients as compared with systemic treatment (ST).

METHODS

Forty-six PsA patients with a total of 73 dactylitic fingers were assessed in an observational, multicentre, prospective study by the Leeds Dactylitis Index basic (LDI-b) score and evaluated for local pain (visual analogue scale-VAS pain) and functional impairment (VAS-FI). Steroid injection was proposed to all patients. Patients refusing LT were treated with oral NSAIDs. Both the groups continued baseline csDMARDs and/or corticosteroids therapy. The clinical outcomes were measured at baseline, 1 month (T1) and 3 months (T3).

RESULTS

The reduction of VAS-pain, VAS-FI and LDI-b values was statistically significant higher in the LT group (24 patients, 38 dactylitic fingers) as compared with the ST group (22 patients, 35 dactylitic fingers), both at T1 (p < 0.001, p < 0.001 and p = 0.008, respectively) and at T3 (p < 0.001, p < 0.001 and p < 0.001, respectively). A clinically meaningful treatment response (defined as a contemporary reduction of at least 5 points in VAS-pain and VAS-FI or as values of VAS-pain and VAS-FI were both ≤ 2) was observed at T1 in 33 (87%) digits in LT group and in 6 (17%) digits in ST group (p < 0.001). At T3, clinical response improved significantly in both the groups, with significant difference (94% vs 31%, p < 0.001).

CONCLUSIONS

For the first time, we show the effectiveness of steroid injection into the digital flexor tendon sheath in improving clinical aspects of hand psoriatic dactylitis. Key Points • Therapy with steroid injection (local treatment, LT), into the digital flexor tendon sheath for the treatment of active dactylitis in psoriatic arthritis patients, is more effective when compared with systemic treatment (ST) alone. • The reduction of VAS-pain, VAS-functional impairment (VAS-FI) and Leeds Dactylitis Index basic values was statistically significant higher in the LT group as compared with the ST group, both at T1and at T3. • A clinically meaningful response was observed at T1 in 87% of digits of patients treated with steroid injection and in 17% of digits of the systemic treatment group (p < 0.001). At T3, clinical response improved significantly in both the groups, with significant difference. • For the first time, findings from this study show that the use of steroid injections into the digital flexor tendon sheath for psoriatic dactylitis could be an effective and safe first-line therapy for psoriatic dactylitis.

Comparison of remission and low disease activity states with DAPSA, MDA and VLDA in a clinical trial setting in psoriatic arthritis patients: 2-year results from the FUTURE 2 study

OBJECTIVES

Remission (REM) or low disease activity (LDA) states were compared in a clinical trial setting of the FUTURE 2 study (NCT01752634) using Disease Activity Index for Psoriatic Arthritis (DAPSA) and Minimal Disease Activity (MDA) composite indices in secukinumab treated PsA patients.

METHODS

The proportion of patients reaching DAPSA-REM (cut-off ≤4) or REM+LDA (≤14), and very low disease activity (VLDA; achieving 7/7 criteria) or MDA (≥5/7), were compared in the overall population, by prior use of anti-TNF therapy, and by time since diagnosis using as observed data. The proportion of patients who met individual core component and other variables of interest were also computed to assess residual disease activity in DAPSA-REM/REM+LDA states and VLDA/MDA responses. The relationship between DAPSA/MDA and patient reported outcomes (PROs), including health-related quality of life, physical function, and fatigue were assessed using mixed model for repeated measures.

RESULTS

More patients could achieve DAPSA-REM or DAPSA-REM+LDA status than VLDA or MDA responses, respectively, at all the time points in the overall population, irrespective of anti‒TNF status and time since diagnosis. Higher proportion of patients reaching DAPSA-REM or VLDA achieved more thresholds of core components (joints, pain, patient and physician global assessments, and function) than DAPSA-REM+LDA or MDA over Week 104. There were differences with numerically higher proportion of patients achieving patient global assessment ≤10 mm and ≤20 mm, and physician global assessment ≤10 mm with MDA than with DAPSA-REM+LDA, and patient pain VAS ≤15 mm, PASI ≤1, HAQ ≤0.5 with VLDA or MDA than with DAPSA-REM or DAPSA-REM+LDA, respectively, through 104 weeks. Improvements in PROs were significantly better for patients in DAPSA-REM+LDA versus DAPSA-moderate+high disease activity status, and for MDA responders versus non-responders.

CONCLUSION

These analysis add to the evidence that both DAPSA and MDA composite index measures can be used for evaluation of the status and treatment response utilizing a treat to target approach in PsA patients in a clinical trial setting and improve patient health related outcomes.

FUNDING

The study and analysis was funded by Novartis Pharma AG, Basel, Switzerland.

GO-DACT: a phase 3b randomised, double-blind, placebo-controlled trial of GOlimumab plus methotrexate (MTX) versus placebo plus MTX in improving DACTylitis in MTX-naive patients with psoriatic arthritis

Objectives

To assess the efficacy of golimumab in combination with methotrexate (MTX) versus MTX monotherapy in psoriatic arthritis (PsA) dactylitis.

Methods

Multicentre, investigator-initiated, randomised, double-blind, placebo-controlled, parallel-design phase 3b trial in 11 Portuguese rheumatology centres. Patients with PsA along with active dactylitis and naive to MTX and biologic disease-modifying antirheumatic drugs (bDMARDs) were randomly assigned to golimumab or placebo, both in combination with MTX. The primary endpoint was Dactylitis Severity Score (DSS) change from baseline to week 24. Key secondary endpoints included DSS and Leeds Dactylitis Index (LDI) response, and changes from baseline in the LDI and MRI dactylitis score. Analysis was by intention-to-treat for the primary endpoint.

Results

Twenty-one patients received golimumab plus MTX and 23 MTX monotherapy for 24 weeks. One patient from each arm discontinued. Patient inclusion was halted at 50% planned recruitment due to a favourable interim analysis. Median baseline DSS was 6 in both arms. By week 24, patients treated with golimumab plus MTX exhibited significantly greater improvements in DSS relative to MTX monotherapy (median change of 5 vs 2 points, respectively; p=0.026). In the golimumab plus MTX arm, significantly higher proportions of patients achieved at least 50% or 70% improvement in DSS and 20%, 50% or 70% improvement in LDI in comparison to MTX monotherapy.

Conclusions

The combination of golimumab and MTX as first-line bDMARD therapy is superior to MTX monotherapy for the treatment of PsA dactylitis.

Trial registration number

NCT02065713

A dermatologist perspective in the pharmacological treatment of patients with psoriasis and psoriatic arthritis

INTRODUCTION

Psoriatic arthritis (PsA) is a chronic inflammatory disease associated with psoriasis in 20-30% of patients. PsA presents as a heterogeneous disease involving different domains and burdened by an important impact on function and quality of life.

AREAS COVERED

Dermatologists play an important role in the early detection of PsA because in most patients PsA develop after cutaneous psoriasis. The ideal goal of treating patients with PsA is to optimize the controls of symptoms, improve quality of life, and prevent structural damage and disability. The choice of treatment in patients with PsA should take into account also the skin signs and symptoms. Treatment options include NSAIDs, synthetic DMARDSs, anti-TNF-α agents, anti-IL-12/IL-23 agents, anti-IL-17 agents, PDE4 inhibitors, JAK inhibitors, and co-stimulatory blockers. A narrative review based on electronic searches on PubMed® database was performed. Original articles assessing either the role of the dermatologist in the management of PsA and the available treatments for PsA were included.

EXPERT OPINION

Among different treatments, some drugs show more efficacy in joint signs and symptoms, and poor response on the skin and vice versa. The perspective of the dermatologist in a multidisciplinary setting may provide a helpful tool in the management of patients with PsA.

Secukinumab versus adalimumab for treatment of active psoriatic arthritis (EXCEED): a double-blind, parallel-group, randomised, active-controlled, phase 3b trial

BACKGROUND

Head-to-head trials in psoriatic arthritis are helpful in guiding clinical decision making. The EXCEED study evaluated the efficacy and safety of secukinumab versus adalimumab as first-line biological monotherapy for 52 weeks in patients with active psoriatic arthritis, with a musculoskeletal primary endpoint of American College of Rheumatology (ACR) 20 response.

METHODS

This parallel-group, double-blind, active-controlled, phase-3b, multicentre (168 sites in 26 countries) trial enrolled patients aged at least 18 years with active psoriatic arthritis. Eligible patients were randomly assigned (1:1) by means of interactive response technology to receive secukinumab or adalimumab. Patients, investigators, site personnel, and those doing the assessments (except independent study drug administrators) were masked to study assignment. 300 mg secukinumab was administered subcutaneously at baseline, weeks 1, 2, 3, and 4, and then every 4 weeks until week 48 as a pre-filled syringe. Adalimumab was administered every 2 weeks from baseline until week 50 as 40 mg per 0·4 mL citrate free subcutaneous injection. The primary outcome was the proportion of patients with at least 20% improvement in the ACR response criteria (ACR20) at week 52. Patients were analysed according to the treatment to which they were randomly assigned. Safety analyses included all safety data reported up to and including the week 52 visit for each patient who received at least one dose of study drug. The trial is registered at ClinicalTrials.gov, NCT02745080.

FINDINGS

Between April 3, 2017 and Aug 23, 2018, we randomly assigned 853 patients to receive secukinumab (n=426) or adalimumab (n=427). 709 (83%) of 853 patients completed week 52 of the study, of whom 691 (81%) received the last study treatment at week 50. 61 (14%) of 426 patients in the secukinumab group discontinued treatment by week 52 versus 101 (24%) of 427 patients in the adalimumab group. The primary endpoint of superiority of secukinumab versus adalimumab for ACR20 response at week 52 was not met. 67% of patients in the secukinumab group achieved an ACR20 response at week 52 versus 62% of patients in the adalimumab group (OR 1·30, 95% CI 0·98-1·72; p=0·0719). The safety profiles of secukinumab and adalimumab were consistent with previous reports. Seven (2%) of 426 patients in the secukinumab group and six (1%) of 427 patients in the adalimumab group had serious infections. One death was reported in the secukinumab group due to colon cancer and was assessed as not related to the study drug by the investigator.

INTERPRETATION

Secukinumab did not meet statistical significance for superiority versus adalimumab in the primary endpoint of ACR20 response at week 52. However, secukinumab was associated with a higher treatment retention rate than adalimumab. This study provides comparative data on two biological agents with different mechanisms of action, which could help guide clinical decision making in the management of patients with psoriatic arthritis.

FUNDING

Novartis Pharma.

Poor prognostic factors in predicting abatacept response in a phase III randomized controlled trial in psoriatic arthritis

In ASTRAEA (NCT01860976), abatacept significantly increased American College of Rheumatology criteria 20% (ACR20) responses at Week 24 versus placebo in patients with psoriatic arthritis (PsA). This post hoc analysis explored relationships between prospectively identified baseline characteristics [poor prognostic factors (PPFs) ] and response to abatacept. Patients were randomized (1:1) to receive subcutaneous abatacept 125 mg weekly or placebo for 24 weeks; those without ≥ 20% improvement in joint counts at Week 16 switched to open-label abatacept. Potential predictors of ACR20 response were identified by treatment arm using multivariate analyses. Likelihood of ACR20 response to abatacept versus placebo was compared in univariate and multivariate analyses in subgroups stratified by the PPF, as defined by EULAR and/or GRAPPA treatment guidelines. Odds ratios (ORs) were generated using logistic regression to identify meaningful differences (OR cut-off: 1.2). 424 patients were randomized and treated (abatacept n = 213; placebo n = 211). In abatacept-treated patients, elevated C-reactive protein (CRP), high Disease Activity Score based on 28 joints (CRP), presence of dactylitis, and ≥ 3 joint erosions were identified as predictors of response (OR > 1.2). In placebo-treated patients, only dactylitis was a potential predictor of response. In the univariate analysis stratified by PPF, ACR20 response was more likely (OR > 1.2) with abatacept versus placebo in patients with baseline PPFs than in those without; multivariate analysis confirmed this finding. Response to abatacept versus placebo is more likely in patients with features indicative of high disease activity and progressive disease; these characteristics are recognized as PPFs in treatment guidelines for PsA.

Peripheral spondyloarthritis: a neglected entity-state of the art

Peripheral spondyloarthritis (pSpA) refers to a number of seemingly different spondyloarthritis subsets in which psoriatic arthritis (PsA) is the most common, and symptoms of arthritis, enthesitis or dactylitis predominate the clinical presentation. Although formal classification criteria for pSpA have been introduced in 2011, only a minority of epidemiological and clinical studies addressed this clinical entity as a separate disease. Moreover, research on outcome measures and treatment modalities in pSpA has been mainly focused on PsA. Subsequently, all biological treatments are off-label in patients with non-psoriatic pSpA. Its neglected status has important implications for clinical practice since the emerging group of early-diagnosed non-psoriatic pSpA patients remains poorly characterised and lacks specific treatment recommendations. This review summarises what is currently known regarding pSpA in terms of epidemiology, clinical presentation, diagnosis and therapeutic approach.

Treatment Switch Patterns and Healthcare Costs in Biologic-Naive Patients with Psoriatic Arthritis

Introduction

We compared treatment switch patterns and healthcare costs among biologic-naive patients with psoriatic arthritis (PsA) who initiated apremilast or biologics.

Methods

A 1:2 propensity score match was used to adjust administrative claims data for adults initiating apremilast or biologics from January 1, 2014, to September 30, 2016, for possible selection bias. Patients had at least 12 months of pre- and post-index continuous enrollment in the Optum Clinformatics™ Data Mart database. Outcomes included switch frequency, days to switch, adherence on index treatment, and healthcare costs (total and per patient per month). Switch rate was defined as the proportion of patients who switched to a new treatment after initiation of the index treatment, and days to switch was calculated as the days between initiation of the index treatment and initiation of the new treatment. Adherence was calculated using the proportion of days covered and the medication possession ratio. The t test and chi-square, Kaplan–Meier, and Wilcoxon rank-sum tests were used to evaluate differences between the cohorts.

Results

Patient characteristics and switch rates were similar between the matched apremilast (n = 170) and biologic (n = 327) cohorts. After matching, patient characteristics were similar between the matched cohorts. The 12-month switch rates were similar for patients initiating apremilast versus those on biologics (17.7% vs. 25.1%, P = 0.06). This trend was similar at 6 months (7.7% vs. 13.2%, P = 0.07) and 18 months (24.4% vs. 29.3%, P = 0.33). Regardless of treatment switching, 12-month total healthcare costs were lower with apremilast versus biologics (all: $28,423 vs. $41,178, P < 0.0001; switched: $39,803 vs. $51,517, P = 0.0040; did not switch: $25,984 vs. $37,717, P < 0.0001).

Conclusions

Biologic-naive patients with PsA who initiated apremilast had switch rates similar to biologic users and significantly lower healthcare costs, regardless of treatment switching.

Psoriatic arthritis (PsA) is a chronic inflammatory disease that affects an estimated 30% of psoriasis patients who use systemic therapy. Symptoms of PsA, such as joint swelling and tenderness, can be painful and disabling and may worsen quality of life. PsA can also impart a substantial economic burden. Treatment for moderate to severe PsA often involves the use of systemic oral medications (e.g., conventional systemic treatments such as methotrexate or targeted systemic treatments such as apremilast) or biologic therapy given by injection or infusion. Because PsA symptoms and responses to treatment can vary, patients may switch treatments over time. More research is needed to better understand how switching treatments affects healthcare costs among patients starting treatment with apremilast or a biologic for PsA. This study compared treatment switching and healthcare costs among patients with PsA who had never been treated with a biologic and who started treatment with apremilast or a biologic for PsA. Rates of treatment switching at 12 months were similar for patients starting treatment with apremilast versus those starting a biologic. Patients starting treatment with apremilast had significantly lower total healthcare costs compared with those starting a biologic, even if they later switched to a biologic. Healthcare costs calculated per patient per month (PPPM) were also lower with apremilast versus biologics, driven by lower PPPM pharmacy costs. These findings suggest that starting treatment with apremilast may be an effective and cost-effective strategy for managing PsA, even for patients who later switch to a biologic.

Subclinical Treatment Targets in Rheumatology: Lessons from Randomized Clinical Trials in Rheumatoid Arthritis

In treat-to-target strategies, choosing the correct target is fundamental to success. The target should be associated with future good outcomes for the patient. Most rheumatic diseases are characterized by inflammation, affecting different tissues depending on the condition. Low-grade, subclinical inflammation is by definition not apparent on clinical examination, but may have significant long-term consequences for the individual. It has thus been debated whether targeting subclinical inflammation would improve long-term outcomes in rheumatoid arthritis. The authors use rheumatoid arthritis as an example to describe and discuss the status of subclinical targets in treat-to-target strategies within rheumatology.

Safety Profile of Biologics Used in Rheumatology: An Italian Prospective Pharmacovigilance Study

Post-marketing surveillance activities are essential to detect the risk/benefit profile of biologic disease-modifying antirheumatic drugs (bDMARDs) in inflammatory arthritis. The aim of this study was to evaluate adverse events (AEs) in patients treated with bDMARDs in rheumatology during a prospective pharmacovigilance study from 2016 to 2018. Descriptive statistical analyses were performed to evaluate bDMARDs-related variables of patients without AEs/failures vs patients with AEs and failures. The risk profile among biologics was assessed by comparing patients treated with each bDMARD to patients treated with etanercept. A total of 1155 patients were enrolled, mostly affected by rheumatoid arthritis (46.0%). AEs and failures were experienced by 8.7% and 23.3%, respectively. The number of comorbidities significantly influenced the onset of AEs, while anxiety-depressive, gastrointestinal disease, and fibromyalgia influenced onset of failures. The probability of developing an AE was significantly lower in patients treated with secukinumab, while the probability of developing treatment failure was significantly lower in patients treated with golimumab, secukinumab and tocilizumab. A total of 216 AEs were reported (25.5% serious), mostly regarding infections (21.8%), musculoskeletal (17.6%) and skin (16.2%) disorders. Serious AEs included neutropenia (12.7%), lymphocytosis (9.1%) and uveitis (7.3%). The obtained results revealed known AEs but real-world data should be endorsed for undetected safety concerns.

Prognostic factors of good response to DMARDs in psoriatic arthritis: a narrative review

INTRODUCTION

The management of Psoriatic arthritis (PsA) has evolved in the last decade with a significant increase in treatment options making the choice for clinicians difficult. Thus, the different factors of good prognosis for each treatment are presented in this review.

AREAS COVERED

Current available treatment and assessment tools for the response of treatment are presented. A systematic review of the literature, on Pubmed, Medline and Cochrane databases and abstracts from the last three EULAR and ACR annual conferences was performed. Factors associated with a good response to csDMARDs, tsDMARDs and bDMARDs are presented.

EXPERT OPINION

Dactylitis and axial involvement are associated with a poor response to methotrexate. Leflunomide has shown better efficacy in the presence of established polyarticular involvement. TNF inhibitors are to be preferred in young men with an elevated CRP while obesity, high disease activity and long disease duration are factors associated with poor response. Apremilast and ustekinumab are more effective in mono and oligo articular disease. Abatacept is more effective in patients with high CRP, high disease activity and polyarticular involvement. Finally, there are no available data with the anti IL17 These factors are some arguments to help clinicians, but comparative study are needed to conclude.

Antitumour necrosis factor-α agents and development of new-onset cirrhosis or non-alcoholic fatty liver disease: a retrospective cohort

Objective

Elevated tumour necrosis factor (TNF)-α has been implicated in the progression of liver fibrosis and pathogenesis of non-alcoholic fatty liver disease (NAFLD). We aim to investigate the impact of anti-TNF-α agents on the development of cirrhosis and NAFLD.

Design

This retrospective cohort study used a US claims database between 1 January 2010 and 31 December 2016. We identified adult patients with ankylosing spondylitis, inflammatory bowel disease, psoriatic arthritis or rheumatoid arthritis. Anti-TNF-α agents of interest included adalimumab, certolizumab, etanercept, golimumab and infliximab. The primary composite outcome was the development of new-onset cirrhosis, NAFLD or non-alcoholic steatohepatitis (NASH). The secondary outcomes were the development of (1) cirrhosis and (2) NAFLD or NASH. Propensity score for anti-TNF-α agent use was generated by logistic regression. Cox proportional hazard models adjusting for the propensity score were used with regard to time-varying anti-TNF-α agent exposure.

Results

This study included 226 555 incident patients with immune-related diseases. During the median 1.5 years follow-up, there was an increased hazard with anti-TNF-α agent use in regard to liver outcomes (composite outcome HR: 1.47, 95% CI 1.27 to 1.70; cirrhosis HR 1.47, 95% CI 0.96 to 2.23; NAFLD or NASH HR 1.53, 95% CI 1.32 to 1.77). The composite outcome hazard was increased for each immune-related disease (HR 1.25–1.90).

Conclusion

In the short term, we did not observe a beneficial effect of anti-TNF-α agent use for development of cirrhosis, NAFLD or NASH in patients with immune-related diseases.

The role of ultrasound and magnetic resonance imaging for treat to target in rheumatoid arthritis and psoriatic arthritis

The treat-to-target (T2T) approach has revolutionized the way we treat patients with rheumatic and musculoskeletal diseases. Recent attention has focused on imaging techniques, in particular musculoskeletal ultrasound and MRI as a focus for T2T strategies. Recently, a number of randomized clinical trials have been performed that compared tight clinical control vs control augmented by imaging techniques. While the three published trials have concluded that imaging does not add to tight clinical care, implementing imaging into the T2T strategy has actual advantages, such as the detection of subclinical involvement, and information on joint involvement/pathology and may possess potential advantages as evidenced by certain secondary endpoints. This review examines the findings of these studies and discusses the advantages and disadvantages of incorporating imaging into the T2T strategy.

Apremilast increases IL-10-producing regulatory B cells and decreases proinflammatory T cells and innate cells in psoriatic arthritis and psoriasis

OBJECTIVES

Psoriatic arthritis (PsA) and psoriasis are immune-mediated inflammatory diseases sharing common immunological mechanisms. Regulatory B cells (Breg cells) producing IL-10 (B10 cells), a critical anti-inflammatory B-cell subset, were found to be decreased in both PsA and psoriasis. Apremilast, a phosphodiesterase-4(PDE4) inhibitor, increases IL-10 and therefore, we examined the effect of apremilast on Breg cells.

METHODS

Fifty patients, including 20 with PsA and 30 with psoriasis, were included in the study. The effect of apremilast on Breg cells at 3, 6 and 12 months post-treatment, was examined by flow cytometry in ODN2006 (TLR9)-stimulated peripheral blood mononuclear cells and magnetically-isolated cells. Th1 cells, Th17 cells and NKT were also measured.

RESULTS

Ex vivo stimulated cell analysis identified that post-apremilast (IL-10+CD19+) B10 cells were increased in all PsA and psoriasis patients and correlated with psoriatic skin and joint clinical improvement. Apremilast decreased IFNγ(+) T and NKT cells and IL-17(+)NKT cells. B10 cells also inversely correlated with Th1 cells, and IFNγ(+)NKT cells.

CONCLUSION

These results suggest that Breg cells are a major target of apremilast in PsA and psoriasis and that apremilast-induced increase of Breg cells is associated with a decrease of Th1 cells, IFNγ-producing NKT cells and IL-17-producing NKT cells.

Comparison of disease activity measures in early psoriatic arthritis in usual care

Objectives

To compare responsiveness and longitudinal validity of Disease Activity Score 28 (DAS28), Disease Activity index for PSoriatic Arthritis (DAPSA), Composite Psoriatic Disease Activity Index (CPDAI), Psoriatic ArthritiS Disease Activity Score (PASDAS), GRAppa Composite scorE (GRACE) and Minimal Disease Activity (MDA) in usual care PsA patients, within 1 year after diagnosis.

Methods

Data collected in the Dutch southwest early PsA cohort (DEPAR) were used. Responsiveness was assessed using effect size (ES), standardized response mean (SRM), and discrimination between different general health states. Longitudinal validity was tested using mixed models with outcomes health-related quality of life (HRQOL), productivity and disability.

Results

Responsiveness was highest for PASDAS, with ES 1.00 and SRM 0.95, lowest for DAPSA, with ES 0.73 and SRM 0.71, and in between for DAS28, CPDAI and GRACE. Differences in general health were best discriminated with PASDAS and GRACE. Patients reporting stable or worsening general health could not be distinguished by DAS28 or CPDAI. Discrimination was better using DAPSA, but worse than when using PASDAS and GRACE. Longitudinal evolvement of HRQOL and productivity had the highest association with low disease activity according to GRACE, followed by PASDAS, MDA, DAPSA, DAS28, with the lowest association for CPDAI.

Conclusion

PASDAS and GRACE were superior with respect to responsiveness, and together with MDA best related to longitudinal evolvement of HRQOL, productivity and disability. Responsiveness and longitudinal validity of most outcomes were inferior for DAS28, DAPSA and CPDAI. As alternatives to the continuous measure DAPSA, use of PASDAS or GRACE should be considered.

Evaluating current definitions of low disease activity in psoriatic arthritis using ultrasound

OBJECTIVE

To evaluate low disease activity (LDA) cut-offs in psoriatic arthritis (PsA) using ultrasound.

METHODS

Eighty-three PsA patients underwent clinical and ultrasound examinations at two visits. LDA was assessed using the Disease Activity index for Psoriatic Arthritis (DAPSA ⩽ 14), the Psoriatic ArthritiS Disease Activity Score (PASDAS ⩽ 3.2), the Composite Psoriatic Disease Activity Index ⩽ 4, the DAS28-CRP ⩽ 2.8 and the minimal disease activity criteria. Ultrasound was performed at 68 joints and 14 entheses. Minimal ultrasound disease activity (MUDA-j/e) was defined as a Power Doppler score ⩽ 1, respectively at joints, paratendinous tissue, tendons and entheses. A global ultrasound score was calculated by summing Grey Scale and Power Doppler information (GUIS-j/e).

RESULTS

LDA was present in 33.7-65.0% at baseline and in 44.3-80.6% at follow-up, depending on the criteria used. MUDA-j/e was observed in 16.9% at baseline and in 30% at follow-up. GUIS-j/e was significantly higher in patients with moderate/high disease activity vs LDA according to DAPSA and PASDAS at baseline and DAPSA, PASDAS, Composite Psoriatic Disease Activity Index and minimal disease activity at follow-up. Patients in moderate/high disease activity had MUDA-j/e in 8.1-21.4% at baseline and in 8.3-20.0% at follow-up, depending on the applied clinical composite. MUDA-j/e patients with moderate/high disease activity had higher levels of pain and pain-related items than those with LDA.

CONCLUSION

The LDA cut-offs of DAPSA, PASDAS, Composite Psoriatic Disease Activity Index, minimal disease activity, but not DAS28-CRP are capable of distinguishing between high and low ultrasound activity. Pain and pain-related items are the main reason why PsA patients without signs of ultrasound inflammation are classified with higher disease activity.

An Integrated Analysis of the Safety of Tofacitinib in Psoriatic Arthritis across Phase III and Long-Term Extension Studies with Comparison to Real-World Observational Data

INTRODUCTION

Tofacitinib is an oral Janus kinase inhibitor for the treatment of psoriatic arthritis (PsA).

OBJECTIVE

Our objective was to compare the incidence rates (IRs) of adverse events in tofacitinib clinical trials and real-world observational data for alternative treatments.

METHODS

The tofacitinib "dose-comparison cohort" included months 0-12 of two phase III studies (tofacitinib 5 [n = 238] and 10 [n = 236] mg twice daily [BID]); the "all-tofacitinib comparison cohort" (n = 783) included two phase III and one ongoing long-term extension study (data cutoff May 2016). An "observational comparison cohort" (n = 5799) comprised patients initiating a conventional synthetic disease-modifying antirheumatic drug (DMARD), biologic DMARD, or apremilast in the US Truven MarketScan database from 2010 to 2015. IRs for serious infections (SIEs; requiring hospitalization), herpes zoster (HZ), malignancies (excluding non-melanoma skin cancer [NMSC]), NMSC, and major adverse cardiovascular events (MACE) across cohorts were qualitatively compared.

RESULTS

IRs (patients with events/100 patient-years) for SIEs were similar between the tofacitinib dose-comparison cohort (5 mg BID: 1.3; 10 mg BID: 2.0) and the observational comparison cohort (1.1-7.9; treatment dependent). The tofacitinib dose-comparison cohort had a higher rate of HZ (5 mg BID: 2.0; 10 mg BID: 2.7) than did the observational comparison cohort (0.8-2.0). IRs for NMSC were generally lower in the all-tofacitinib comparison cohort (0.5) than in the observational comparison cohort (0.4-6.0). IRs for MACE, malignancies excluding NMSC, and NMSC were similar between cohorts.

CONCLUSION

In patients with PsA, tofacitinib had a safety profile similar to that of other systemic therapies in real-world settings, except for the risk of HZ, a known risk of tofacitinib.

TRIAL REGISTRATION

ClinicalTrials.gov: NCT01877668; NCT01882439; NCT01976364.

Metabolic Syndrome and psoriatic arthritis: considerations for the clinician

Introduction: Metabolic Syndrome (MetS) is strictly interconnected with systemic inflammation, and increased evidence has described a close link between this condition and Psoriatic Arthritis (PsA).Areas covered: This review summarizes main studies exploring clinical aspects and prevalence of MetS in PsA cohorts. Further, there is accumulating evidence showing shared inflammatory pathways between MetS, its components, and PsA.Expert opinion: The high prevalence of MetS in PsA highlights the need for screening, evaluation, and close monitoring of MetS and its components (namely, diabetes mellitus, obesity, hypertension, and dyslipidemia) in psoriatic patients.Further studies should focus on the pathogenetic link between MetS and PsA. More studies are required to identify appropriate algorithms for the assessment and management of MetS in PsA patients.

Long-term efficacy and safety of secukinumab in patients with psoriatic arthritis: 5-year (end-of-study) results from the phase 3 FUTURE 2 study

BACKGROUND

Secukinumab is an interleukin-17A inhibitor used in the treatment of patients with active psoriatic arthritis. In the phase 3 FUTURE 2 trial, secukinumab showed sustained improvement in clinical outcomes over 2 years. Because scarce data exists on the long-term treatment with biological therapies in patients with psoriatic arthritis, we aimed to assess and describe the 5-year (end-of-study) results on the efficacy and safety of secukinumab 300 mg and 150 mg doses, as well as dose escalation, from the FUTURE 2 study.

METHODS

FUTURE 2 is a phase 3, double-blind, placebo-controlled study done at 76 centres in Asia, Australia, Canada, Europe, and the USA. Patients with active psoriatic arthritis aged 18 years or older were randomly assigned to either secukinumab (300 mg, 150 mg, or 75 mg) or placebo weekly from baseline and then every 4 weeks from week 4. Secukinumab dose was escalated from 150 mg to 300 mg and from 75 mg to 150 mg or 300 mg starting at week 128, if active signs of disease were observed in patients, on the basis of the physician's assessment, with the escalated dose maintained thereafter. We assessed key efficacy endpoints at week 260 (5 years) for secukinumab 300 mg and 150 mg, including American College of Rheumatology (ACR) and Psoriasis Area and Severity Index (PASI) responses. The safety analysis included all patients who received one or more doses of secukinumab. We report data as observed. This study is registered with ClinicalTrials.gov, NCT01752634.

FINDINGS

At randomisation, 65% of patients were naive to tumour necrosis factor inhibitors and 47% were receiving concomitant methotrexate. Of 397 patients randomly assigned in FUTURE 2, 248 (62%) completed 5 years of treatment, including 64 (64%) of 100 patients in the original secukinumab 300 mg group, 65 (65%) of 100 in the 150 mg group, 59 (60%) of 99 in the 75 mg group, and 60 (61%) of 98 in the placebo group. Overall, 127 (52%) of 242 patients required dose escalation during the study. ACR responses at 5 years were 71 (74%; ACR20), 50 (52%; ACR50), and 31 (32%; ACR70) of 96 evaluable patients in the secukinumab 300 mg group, and 67 (70%; ACR20), 41 (43%; ACR50), and 28 (29%; ACR70) of 96 evaluable patients in the secukinumab 150 mg group. From 24 to 32 weeks and from 48 to 84 weeks after dose escalation from secukinumab 150 mg to 300 mg, the proportions of ACR and PASI non-responders decreased, whereas the proportions of ACR and PASI responders increased. During the entire treatment period, the most frequent treatment-emergent serious adverse event was serious infection (exposure-adjusted incidence 1·7, 95% CI 1·1-2·5; n=25) in the any secukinumab group. No new or unexpected safety signals were reported.

INTERPRETATION

Secukinumab 300 mg and 150 mg provided sustained improvement in the signs and symptoms of psoriatic arthritis, with consistent safety over 5 years. This study supports the clinical benefit and safety of long-term treatment with secukinumab in patients with psoriatic arthritis.

FUNDING

Novartis.

Retention rates and identification of factors associated with anti-TNFα, anti-IL17, and anti-IL12/23R agents discontinuation in psoriatic arthritis patients: results from a real-world clinical setting

INTRODUCTION

Biologic disease-modifying antirheumatic drugs (bDMARDs) play a pivotal role in the treatment of psoriatic arthritis (PsA). Despite this, their discontinuation due to inefficacy or adverse events is often observed. The aims of this study are to describe retention rates and treatment trends of anti-TNFα, anti-IL17, and anti-IL12/23R agents in patients with PsA and to identify factors associated with bDMARDs discontinuation in a real-world clinical setting.

METHODS

A retrospective cohort study based on the analysis of the three Italian prescription cohorts of patients with PsA has been performed. Survival analysis was performed using Kaplan-Meier curves and Cox proportional-hazards model.

RESULTS

During the follow up, which lasted 25.5 (12-60) months, 68 patients discontinued a bDMARD: 13 for primary failure, 12 for secondary failure, 15 for adverse events, 5 for remission, 12 because of lost at follow-up, and 11 for other causes. Cox proportional-hazards demonstrated that a shorter disease duration (HR 0.994991, 95% CI 0.9910336-0.9989647, p = 0.014) and first-line bDMARD (HR 0.5090986, 95% CI 0.3073519-0.8432722, p = 0.009) have a protective role on bDMARD retention rate, while the multivariable analysis failed in demonstrating an independent protective role of male sex on drug retention rate (p = 0.083). No significant differences in retention rate have been found regarding biologic drugs, combination therapy or monotherapy, and class of bDMARD (anti-TNFα or anti-pIL12/23R and anti-IL-17).

CONCLUSIONS

This study shows that a shorter disease duration and treatment with a first-line bDMARD are predictors of bDMARDs retention rate, further highlighting the importance of early diagnosis of PsA. Key Points • No significant difference in retention among patients treated with anti-IL17A, anti-IL12/23R, and anti-TNFα agents has been demonstrated. • A shorter disease duration and first-line bDMARD treatment are associated with persistence in biologic treatment.

Role of the IL-23 pathway in the pathogenesis and treatment of enthesitis in psoriatic arthritis

INTRODUCTION

Enthesitis is a key feature of spondyloarthritis (SpA). Several studies have underlined the role of interleukin (IL)-23 in SpA development as a crucial cytokine in the pathogenesis of enthesitis.

AREA COVERED

This review summarizes recent evidence of the role of IL-23 in the pathogenesis of and as a target of the treatment of enthesitis. We review the definition, diagnosis and clinical impact of enthesitis and its connection with microbial infections, gut dysbiosis, and mechanical stress. We also review clinical trials and real-life studies of drugs targeting the p19 or p40 subunits of IL-23.

EXPERT OPINION

Novel therapies targeting the p19 or p40 subunit of IL-23 appear to be promising treatment options for patients with enthesitis. Although we are currently unable to identify the best therapeutic window to target IL-23 in SpA disease evolution, the promising ability of this therapy to control the gut-entheseal axis is increasing our knowledge of SpA pathogenesis.

Association between clinical specialty setting and disease management in patients with psoriatic arthritis: results from LOOP, a cross-sectional, multi-country, observational study

BACKGROUND

Psoriatic arthritis (PsA) is a chronic and debilitating disease that can be managed by different clinical specialists.

OBJECTIVES

The objective of the LOOP study was to evaluate the impact of clinical specialty setting on the time to diagnosis and treatment of patients with PsA. Clinical disease activity and disease burden were also compared between clinical settings.

METHODS

LOOP was a cross-sectional, multicentre, observational study conducted in 17 countries in Western and Eastern Europe, the Middle East, Latin America and Asia. Adult patients (≥18 years) with a suspected or established diagnosis of PsA who were routinely visiting a rheumatologist, dermatologist or non-rheumatology/non-dermatology physician were enrolled. All patients were assessed by both a rheumatologist and a dermatologist.

RESULTS

Of 1483 enrolled patients, a total of 1273 had a confirmed diagnosis of PsA. There was no significant difference in the median time from onset of inflammatory musculoskeletal symptoms to PsA diagnosis between patients enrolled by rheumatologists and dermatologists (6.0 vs. 3.9 months). However, the median time from diagnosis to first treatment with a conventional synthetic disease-modifying anti-rheumatic drug (csDMARD) was significantly shorter in the rheumatology setting compared with the dermatology setting (0 vs. 2.0 months; P < 0.001). In addition, disease activity was significantly higher in the dermatology setting compared with the rheumatology setting.

CONCLUSIONS

Differences in the management and clinical status of patients with PsA were observed between the rheumatology and dermatology settings. Importantly, median time from diagnosis to first csDMARD was significantly shorter in the rheumatology setting, and patients in the dermatology setting had higher disease activity. These data show the importance of improved collaboration between rheumatologists and dermatologists.

Insights into the treatment of rheumatoid arthritis: A paradigm in medicine

Insights into rheumatoid arthritis (RA) have slowly evolved over the last century, but with breathtaking speed over the last 2 decades. While only aspirin and parenteral gold were available in early 20th century, the efficacy of sulfasalazine, glucocorticoids and methotrexate was established around its middle. Identification of pathogenetic pathways was slow, and until today the role of T-cells is enigmatic, while it is clear that genetics via the shared epitope and other genes as well as environmental factors including the metagenome play major roles. More clarity evolved on importance of proinflammatory cytokines, especially TNF and IL-6. The activation of osteoclasts, the culprits of bony joint damage, is amplified by the proinflammatory cytokines. The realization of TNF's central role led to the successful introduction of TNF-inhibitors and subsequently also inhibitors of other cytokines and cells as well as signal transduction. In parallel, the evolution of outcomes research has contributed importantly to RA management. At the turn to the 21st century, improvement criteria and continuous indices were created, allowing reliable therapeutic response determination, including definition of endpoints like remission. Also our understanding of the role of disease activity relative to disease pathology has increased, ultimately fostering the treat-to-target concept and recommendations and, thus, optimal outcomes for RA patients as never been seen before. Similar developments are now ultimately being introduced in the field of psoriatic arthritis. Here many of these aspects are reviewed from a very personal perspective of the author in the hopes of further helping parients with chronic forms of arthritis.

Assessment of the many faces of PsA: single and composite measures in PsA clinical trials

PsA is a complex, heterogeneous disease that can place a large burden on patients' psychological and physical well-being. The multifaceted nature of PsA poses a significant assessment challenge, both in randomized control trials and in clinical practice. In recent years, there has been much progress in the development of unidimensional and composite measures of disease activity, as well as of questionnaires that capture the patient's perspective of the condition. Despite these advances, there remains uncertainty around which tools to implement within a research setting. This review aims to summarize the currently available clinical and patient-derived assessment tools, providing a practical and informative resource for the assessment of PsA. This review will also explore recent advancements in digital approaches to the assessment of rheumatological conditions. This will highlight the potential for digitalization in the assessment and monitoring of PsA, outlining innovative means of capturing disease activity and treatment response.

S2k guidelines for the treatment of psoriasis in children and adolescents - Short version part 2

The present guidelines are aimed at residents and board-certified physicians in the fields of dermatology, pediatrics, pediatric dermatology and pediatric rheumatology as well as policymakers and insurance funds. They were developed by dermatologists and pediatric dermatologists in collaboration with pediatric rheumatologists using a formal consensus process (S2k). The guidelines highlight topics such as disease severity, quality of life, treatment goals as well as problems associated with off-label drug therapy in children. Trigger factors and diagnostic aspects are discussed. The primary focus is on the various topical, systemic and UV-based treatment options available and includes recommendations for use and treatment algorithms. Other aspects addressed herein include vaccinations in children and adolescents with psoriasis as well as various disease subtypes such as guttate psoriasis, diaper psoriasis, pustular psoriasis and psoriatic arthritis. Finally, we also provide recommendations for imaging studies and the diagnostic workup to rule out tuberculosis prior to initiating systemic treatment. Note: This article constitutes part 2 of the Sk2 guidelines for the treatment of psoriasis in children and adolescents. Part 1 was published in last month's issue. It contained introductory remarks and addressed aspects of diagnosis and topical treatment.

Differences in the serum metabolome and lipidome identify potential biomarkers for seronegative rheumatoid arthritis versus psoriatic arthritis

Objectives

The differential diagnosis of seronegative rheumatoid arthritis (negRA) and psoriasis arthritis (PsA) is often difficult due to the similarity of symptoms and the unavailability of reliable clinical markers. Since chronic inflammation induces major changes in the serum metabolome and lipidome, we tested whether differences in serum metabolites and lipids could aid in improving the differential diagnosis of these diseases.

Methods

Sera from negRA and PsA patients with established diagnosis were collected to build a biomarker-discovery cohort and a blinded validation cohort. Samples were analysed by proton nuclear magnetic resonance. Metabolite concentrations were calculated from the spectra and used to select the variables to build a multivariate diagnostic model.

Results

Univariate analysis demonstrated differences in serological concentrations of amino acids: alanine, threonine, leucine, phenylalanine and valine; organic compounds: acetate, creatine, lactate and choline; and lipid ratios L3/L1, L5/L1 and L6/L1, but yielded area under the curve (AUC) values lower than 70%, indicating poor specificity and sensitivity. A multivariate diagnostic model that included age, gender, the concentrations of alanine, succinate and creatine phosphate and the lipid ratios L2/L1, L5/L1 and L6/L1 improved the sensitivity and specificity of the diagnosis with an AUC of 84.5%. Using this biomarker model, 71% of patients from a blinded validation cohort were correctly classified.

Conclusions

PsA and negRA have distinct serum metabolomic and lipidomic signatures that can be used as biomarkers to discriminate between them. After validation in larger multiethnic cohorts this diagnostic model may become a valuable tool for a definite diagnosis of negRA or PsA patients.

Inhibition of radiographic progression in psoriatic arthritis by adalimumab independent of the control of clinical disease activity

Objectives

To evaluate the relationship between radiographic progression and disease activity in subjects with PsA treated with adalimumab (ADA) or placebo (PBO) and the impact of concomitant MTX.

Methods

This was a post hoc analysis of the randomized, double-blind, PBO-controlled ADEPT trial. Subjects were categorized according to time-averaged (TA) disease activity (remission, low, moderate or high) based on Disease Activity Score of 28 joints with CRP [DAS28(CRP)], Disease Activity Index for Psoriatic Arthritis (DAPSA) or Psoriatic Arthritis Disease Activity Score (PASDAS), and achievement of minimal disease activity (MDA) at week 24. Radiographic progression was assessed as change in modified total Sharp score (ΔmTSS) from baseline to week 24. The analyses included interaction terms between disease activity and treatment on radiographic progression, comparison of radiographic progression in subjects categorized by disease activity and treatment, and correlation between disease activity and radiographic progression by treatment.

Results

The interaction terms for TA disease activity and treatment on ΔmTSS were significant (P = 0.002–0.008). Irrespective of concomitant MTX, ΔmTSS was lower with ADA vs PBO in all disease activity categories. Importantly, even in subjects having moderate or high disease activity or not achieving MDA, ΔmTSS was significantly lower on ADA than PBO (P = 0.05–0.001 for TA-DAPSA, TA-PASDAS and MDA). Correlations between TA disease activity scores and ΔmTSS were moderately positive and significant (P < 0.001) with PBO but non-significant with ADA.

Conclusion

Among subjects with PsA treated with ADA, there was evidence of a ‘disconnect’ between disease activity and radiographic progression: inhibition of radiographic progression was greater than expected based on control of clinical disease activity alone. MTX had no added effect.

Trial registration

ClinicalTrials.gov, http://clinicaltrials.gov, NCT00646386.

Pathophysiology, assessment and treatment of psoriatic dactylitis

Dactylitis is diffuse swelling of the digits that is usually related to an underlying inflammatory or infiltrative disorder. Psoriatic arthritis (PsA) is the most common severe disease thought to cause dactylitis. Our understanding of the pathogenesis of PsA-related dactylitis comes from experimental animal models of PsA-like disease, as well as advances in imaging and other clinical studies. Clinical trials in PsA have increasingly included dactylitis as an important secondary outcome measure. These studies indicate that cytokines drive multi-locus microanatomical pan-digital pathology. Given the importance of pro-inflammatory cytokines, the pathogenesis of dactylitis is best understood as an initial aberrant innate immune response to biomechanical stress or injury, with subsequent adaptive immune mechanisms amplifying the dactylitis inflammatory response. Regarding the treatment of dactylitis, no studies have been conducted using dactylitis as the primary outcome measure, and the current knowledge comes from analysis of dactylitis as a secondary outcome measure.

Myasthenia gravis after etanercept and ustekinumab treatment for psoriatic arthritis: A case report

A 35-year-old man was diagnosed with psoriatic arthritis treated with methotrexate and cyclosporine, the latter was then interrupted. Subsequently, etanercept was introduced, administered for 10 years and then replaced with ustekinumab. Six months after treatment with ustekinumab, patient underwent a chest CT scan for pneumonia, showing an anterior mediastinal mass which turned out to be a thymoma. He was referred to our department with fatigue, difficulty in raising arms and transient episodes of diplopia after exertion. Clinical history revealed that these symptoms had begun about 7 years previously but were ascribed to psoriatic arthritis. A diagnosis of anti-acetylcholine receptor antibodies positive myasthenia gravis was made; a higher dosage of methotrexate and prednisone were started with regression of symptoms. Our case increases the number of clinical reports of myasthenia gravis onset in patients with a history of rheumatic disease treated with anti-TNFα drugs. We speculate that ustekinumab could contribute to clinical worsening.