glpg0634 and Psoriasis

Janus kinase inhibitors (JAKi) have been approved for use in various immune-mediated inflammatory diseases. With five agents licensed, it was timely to summarise the current understanding of JAKi use based on a systematic literature review (SLR) on efficacy and safety.. Existing data were evaluated by a steering committee and subsequently reviewed by a 29 person expert committee leading to the formulation of a consensus statement that may assist the clinicians, patients and other stakeholders once the decision is made to commence a JAKi. The committee included patients, rheumatologists, a gastroenterologist, a haematologist, a dermatologist, an infectious disease specialist and a health professional. The SLR informed the Task Force on controlled and open clinical trials, registry data, phase 4 trials and meta-analyses. In addition, approval of new compounds by, and warnings from regulators that were issued after the end of the SLR search date were taken into consideration.. The Task Force agreed on and developed four general principles and a total of 26 points for consideration which were grouped into six areas addressing indications, treatment dose and comedication, contraindications, pretreatment screening and risks, laboratory and clinical follow-up examinations, and adverse events. Levels of evidence and strengths of recommendations were determined based on the SLR and levels of agreement were voted on for every point, reaching a range between 8.8 and 9.9 on a 10-point scale.. The consensus provides an assessment of evidence for efficacy and safety of an important therapeutic class with guidance on issues of practical management.

Topics: Adamantane; Advisory Committees; Antirheumatic Agents; Arthritis, Psoriatic; Arthritis, Rheumatoid; Azetidines; Cytokines; Drug Therapy, Combination; Europe; Heterocyclic Compounds, 3-Ring; Humans; Inflammatory Bowel Diseases; Janus Kinase Inhibitors; Niacinamide; Piperidines; Psoriasis; Purines; Pyrazoles; Pyridines; Pyrimidines; Rheumatology; Spondylarthropathies; Spondylitis, Ankylosing; Sulfonamides; Triazoles

JAK inhibitor therapies are effective treatment options for immune-mediated inflammatory diseases (IMIDs), but their use has been limited by venous thromboembolism (VTE) risk warnings from licensing authorities. We undertook this study to evaluate the VTE risk of JAK inhibitors in patients with IMIDs.. Systematic searches of Medline and Embase databases from inception to September 30, 2020 were conducted. Phase II and phase III double-blind, randomized controlled trials (RCTs) of JAK inhibitors at licensed doses were included in our analyses. RCTs with no placebo arm, long-term extension studies, post hoc analyses, and pooled analyses were excluded. Three researchers independently extracted data on exposure to JAK inhibitors or placebo and VTE events (e.g., pulmonary embolism [PE] and deep vein thrombosis [DVT]) and assessed study quality.. A total of 42 studies were included, from an initial search that yielded 619. There were 6,542 JAK inhibitor patient exposure years (PEYs) compared to 1,578 placebo PEYs. There were 15 VTE events in the JAK inhibitor group and 4 in the placebo group. The pooled incidence rate ratios (IRRs) of VTE, PE, and DVT in patients receiving JAK inhibitors were 0.68 (95% confidence interval [95% CI] 0.36-1.29), 0.44 (95% CI 0.28-0.70), and 0.59 (95% CI 0.31-1.15), respectively.. This meta-analysis of RCT data defines the VTE risk with JAK inhibitors as a class in IMID patients. The pooled IRRs do not provide evidence that support the current warnings of VTE risk for JAK inhibitors. These findings will aid continued development of clinical guidelines for the use of JAK inhibitors in IMIDs.

Topics: Arthritis, Psoriatic; Arthritis, Rheumatoid; Azetidines; Clinical Trials, Phase II as Topic; Clinical Trials, Phase III as Topic; Heterocyclic Compounds, 3-Ring; Humans; Inflammatory Bowel Diseases; Janus Kinase Inhibitors; Piperidines; Psoriasis; Pulmonary Embolism; Purines; Pyrazoles; Pyridines; Pyrimidines; Randomized Controlled Trials as Topic; Risk; Spondylarthropathies; Spondylitis, Ankylosing; Sulfonamides; Triazoles; Venous Thromboembolism; Venous Thrombosis

Inhibitors of Janus kinases (JAKs) are being developed for treatment of inflammatory bowel diseases and other immune-mediated diseases. Tofacitinib is effective in treatment of ulcerative colitis, but there are safety concerns. We performed a systematic review and meta-analysis to investigate the safety profile of tofacitinib, upadacitinib, filgotinib, and baricitinib in patients with rheumatoid arthritis, inflammatory bowel diseases, psoriasis, or ankylosing spondylitis.. We searched the MEDLINE, EMBASE, and Cochrane Central Register of Controlled Trials from January 1, 1990, through July 1, 2019. We performed a manual review of conference databases from 2012 through 2018. The primary outcome was incidence rates of adverse events (AEs) and serious AEs. We also estimated incidence rates of serious infections, herpes zoster infection, non-melanoma skin cancer, other malignancies, major cardiovascular events, venous thromboembolism, and mortality. We performed a meta-analysis, which included controlled studies, to assess the relative risk of these events.. We identified 973 studies; of these, 82 were included in the final analysis, comprising 66,159 patients with immune-mediated diseases who were exposed to a JAK inhibitor. Two-thirds of the included studies were randomized controlled trials. The incidence rate of AEs was 42.65 per 100 person-years and of serious AEs was 9.88 per 100 person-years. Incidence rates of serious infections, herpes zoster infection, malignancy, and major cardiovascular events were 2.81 per 100 person-years, 2.67 per 100 person-years, 0.89 per 100 person-years, and 0.48 per 100 person-years, respectively. Mortality was not increased in patients treated with JAK inhibitors compared with patients given placebo or active comparator (relative risk 0.72; 95% confidence interval 0.40-1.28). The meta-analysis showed a significant increase in risk of herpes zoster infection among patients who received JAK inhibitors (relative risk 1.57; 95% confidence interval 1.04-2.37).. In a systematic review and meta-analysis, we found an increased risk of herpes zoster infection among patients with immune-mediated diseases treated with JAK inhibitors. All other AEs were not increased among patients treated with JAK inhibitors.

Topics: Arthritis, Rheumatoid; Azetidines; Herpes Zoster; Heterocyclic Compounds, 3-Ring; Humans; Incidence; Inflammatory Bowel Diseases; Janus Kinase Inhibitors; Janus Kinases; Piperidines; Placebos; Psoriasis; Purines; Pyrazoles; Pyridines; Pyrimidines; Pyrroles; Randomized Controlled Trials as Topic; Spondylitis, Ankylosing; Sulfonamides; Survival Analysis; Treatment Outcome; Triazoles

Janus kinase (JAK) inhibitors are novel small molecules with a mechanism of action in multiple signaling pathways that allows their application in a broad spectrum of autoimmune and autoinflammatory diseases. As far as the field of dermatology is concerned, chronic plaque psoriasis is currently one of the most studied indications regarding the potential use of JAK inhibitors. The purpose of this review is to provide a summarized overview of the existing information on the efficacy and safety of JAK inhibitors in plaque psoriasis, with a focus on tofacitinib, ruxolitinib, baricitinib, peficitinib and filgotinib. Although the published data on the therapeutic benefit of these agents in the therapy of this chronic condition are promising, further prospective studies and real-life data are necessary in order to sufficiently evaluate their role as an adequate treatment option for psoriatic patients.

Topics: Adamantane; Azetidines; Humans; Janus Kinase Inhibitors; Janus Kinases; Niacinamide; Nitriles; Piperidines; Prospective Studies; Psoriasis; Purines; Pyrazoles; Pyridines; Pyrimidines; Pyrroles; Sulfonamides; Triazoles

To examine the effects of filgotinib, an oral, selective Janus kinase 1 inhibitor, on health-related quality of life (HRQoL) using the Psoriatic Arthritis Impact of Disease (PsAID)9 questionnaire in active PsA.. Patients were randomized 1 : 1 to filgotinib 200 mg or placebo once daily for 16 weeks in EQUATOR, a multicentre, double-blind, phase 2 randomized controlled trial. HRQoL was assessed with PsAID9 at Weeks 4 and 16. Change from baseline in total and individual domain scores, plus the proportions of patients achieving minimal clinically important improvement (MCII; ⩾3 points) and patient-accepted symptom status (PASS; score <4), were evaluated. Correlation with the 36-item short-form health survey (SF-36) was investigated.. One hundred and thirty-one patients were randomized to filgotinib or placebo. Filgotinib effects on PsAID9 were observed from Week 4. At Week 16, mean (s.d.) change from baseline in PsAID9 was -2.3 (1.8) and -0.8 (2.2) for filgotinib and placebo, respectively (least-squares mean of group difference -1.48 [95% CI -2.12, -0.84], P < 0.0001), with significant improvements in all domains vs placebo. Significantly more patients on filgotinib achieved MCII (group difference 25.4% [95% CI 8.92, 39.99], P = 0.0022) and PASS (group difference 29.6% [95% CI 10.65, 45.60], P = 0.0018) at Week 16 vs placebo. Similar improvements in SF-36 were observed, with moderate to strong negative correlation between PsAID9 and SF-36.. Filgotinib significantly improved HRQoL vs placebo in patients with active PsA, as measured by PsAID9. To our knowledge, EQUATOR is the first randomized controlled trial to evaluate PsAID9.. ClinicalTrials.gov, https://clinicaltrials.gov/ct2/show, NCT03101670.

Topics: Adaptation, Psychological; Arthritis, Psoriatic; Double-Blind Method; Fatigue; Humans; Janus Kinase Inhibitors; Least-Squares Analysis; Minimal Clinically Important Difference; Pain; Physical Functional Performance; Psoriasis; Pyridines; Quality of Life; Sleep Wake Disorders; Social Behavior; Treatment Outcome; Triazoles

The goal of this study was to identify protein and transcriptional biomarkers and pathways associated with baseline disease state, the effect of filgotinib (FIL) treatment on these biomarkers, and to investigate the mechanism of action of FIL on clinical improvement in patients with active psoriatic arthritis (PsA).. The phase II EQUATOR (NCT03101670) trial evaluated the efficacy of FIL, a Janus kinase 1-preferential inhibitor, in patients with PsA. Peripheral protein and gene expression levels in association with clinical state at baseline and post-treatment were assessed in 121 patients using linear mixed effects models for repeated measures analyses. Mediation analysis and structural equation modelling (SEM) were performed to investigate the mechanism of action of FIL at week 4 on downstream clinical improvement at week 16.. Baseline analyses showed that markers of inflammation were significantly associated with multiple PsA clinical metrics, except for Psoriasis Area and Severity Index (PASI), which corresponded to Th17 markers. FIL treatment resulted in sustained transcriptional inhibition of immune genes and pathways, a sustained increase in B-cell fraction and mature B-cells in circulation, and a transient effect on other cell fractions. Mediation analysis revealed that changes in B cells, systemic inflammatory cytokines and neutrophils at week 4 were associated with changes in clinical metrics at week 16. SEM suggested that FIL improved PASI through reduction of IL-23 p19 and IL-12 p40 proteins.. Our results revealed that FIL treatment rapidly downregulates inflammatory and immune pathways associated with PsA disease activity corresponding to clinical improvement in PsA.. NCT03101670.

Topics: Arthritis, Psoriatic; Biomarkers; Humans; Janus Kinase Inhibitors; Psoriasis; Pyridines; Treatment Outcome