September 2017

Safety and Efficacy of Baricitinib through 128 Weeks in an Open-label, Longterm Extension Study in Patients with Rheumatoid Arthritis

J Rheumatol. 2018 Jan;45(1):14-21. doi: 10.3899/jrheum.161161

This open-label extension (OLE) of a Phase 2b randomised controlled trial (RCT) found that safety data collected over 2 years of treatment were generally consistent with previous findings for baricitinib in RA.In the RCT, baricitinib demonstrated significant improvement in disease activity compared with placebo and an acceptable safety profile in patients with RA and an inadequate response to MTX. Patients who completed the 24-week double-blind period of the study were eligible for the OLE. Rate...

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August 2017

Evaluation of Newly Proposed Remission Cut-points for Disease Activity Score in 28 Joints (DAS28) in Rheumatoid Arthritis upon IL-6 Pathway Inhibition

Arthritis Res Ther. 2017 Jul 4;19(1):155. doi: 10.1186/s13075-017-1346-5

DAS28 is not currently included in the joint remission definitions of the ACR and the EULAR because its formula is disproportionately influenced by Acute Phase Response (APR).IL-6 pathway blockers or JAK inhibitors greatly reduce APR, causing patients to be classed as in DAS28 remission despite still having multiple swollen joints.To make DAS28 remission criteria more stringent, the alternative cut-points of <1.9 and <2.2 for CRP and ESR, respectively, have been proposed.This study questioned th...

A Comparison of Discontinuation Rates of Tofacitinib and Biologic Disease-modifying Anti-rheumatic Drugs in Rheumatoid Arthritis: a Systematic Review and Bayseian Network Meta-analysis Regression

Clin Exp Rheumatol 2017;35:689–99

Based on a Bayesian network meta-analysis (NMA) in patients with RA who previously showed failure with csDMARDs or biologics, discontinuation rates between tofacitinib (TOF) and biologics (TNFis, abatacept [ABT], rituximab [RTX] and tocilizumab [TCZ]) differed based on previous treatments and reasons for discontinuation.Data were collected from randomised controlled trials (RCT) found from literature searches from the Cochrane Central Register of Controlled Trials (CENTRAL) and MEDLINE. Disconti...

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July 2017

Treatment of Rheumatoid Arthritis with Anti-Tumor Necrosis Factor or Tocilizumab Therapy as First Biologic in a Global Comparative observational Study

Arthritis Care Res (Hoboken). 2017 Oct;69(10):1484-1494. doi: 10.1002/acr.23303

To date, the comparative efficacy of tocilizumab and TNFi for patients with RA has only been investigated in a single head-to-head trial and network meta-analyses. This study, ACT-iON, is the first prospective, large-scale, global, multicentre, comparative effectiveness study comparing initiation of intravenous tocilizumab with initiation of a TNFi in patients with RA as the first-line biologic treatment after inadequate response to csDMARDs. Patients were observed in a real-world, clinical pra...

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Pathogenetic Insights from the Treatment of Rheumatoid Arthritis

Lancet 2017;389:2328–37 DOI 10.1016/S0140-6736(17)31472-1

This review paper examines the understanding gained from looking at the effects of specific immune interventions in the treatment of RA.The introduction of novel IL-6 agents has provided the ideal opportunity to explore the distinct effect of cytokine inhibition, as opposed to receptor inhibition, at the molecular level. Mechanistic insights into TNF could also be obtained in the future with advanced molecular and informatics approaches, and future biopsy studies will be important to explore the...

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Efficacy, Safety, Pharmacokinetics, and Pharmacodynamics of Filgotinib, a Selective Janus kinase 1 Inhibitor, after Short-term Treatment of Rheumatoid Arthritis: Results of Two randomized Phase IIA Trials

Arthritis Rheumatol. 2017 Oct;69(10):1949-1959. doi: 10.1002/art.40186

In two 4-week exploratory Phase 2a trials in MTX-inadequate responder (IR) patients with RA, the highly selective JAK1 inhibitor filgotinib met the primary endpoint of ACR20 at Week 4, showing greater response than placebo.Study 1, a proof-of-concept study, included 127 patients randomised to placebo, filgotinib 100 mg BID or filgotinib 200 mg QD. Study 2, was a dose-ranging study and included 91 patients randomised to placebo, filgotinib 30 mg QD, filgotinib 75 mg QD, filgotinib 150 mg QD or fi...

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June 2017

Biologics or Tofacitinib for People with Rheumatoid Arthritis Naïve to Methotrexate: a Systematic Review and Network Meta-analysis

Cochrane Database Syst Rev. 2017 May 8;5:CD012657. doi: 10.1002/14651858.CD012657

This Cochrane systemic review and network meta-analysis looked at the benefits and harms of biologics or tofacitinib in patients with RA not previously treated with MTX.Using data from 19 RCTs including 6,485 participants, the review found that biologics (abatacept, adalimumab, etanercept, golimumab, infliximab, rituximab) in combination with MTX improved signs and symptoms of RA (ACR50) and increased the chances of remission (DAS <1.6 or DAS28 <2.6). There was also some evidence of an improveme...

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Filgotinib (GLPG0634/GS-6034), an oral selective JAK1 inhibitor, is effective as monotherapy in patients with active rheumatoid arthritis: results from a randomised, dose-finding study (DARWIN 2)

Ann Rheum Dis 2017;76:1009–19

In these two Phase 2b studies, filgotinib (a selective JAK-1 inhibitor) was shown to improve the signs and symptoms of RA (compared with placebo), either as monotherapy or when added to MTX.DARWIN 1 included 594 patients with moderate to severe RA on a stable dose of MTX, while DARWIN 2 included 283 patients who stopped taking MTX before the start of the study. After 12 weeks’ treatment, significantly more patients who were receiving filgotinib 100 mg or 200 mg daily in DARWIN 1 or any filgotini...

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Filgotinib (GLPG0634/GS-6034), an oral JAK1 selective inhibitor, is effective in combination with methotrexate (MTX) in patients with active rheumatoid arthritis and insufficient response to MTX: results from a randomised, dose-finding study (DARWIN 1)

Ann Rheum Dis 2017;76:998–100

In these two Phase 2b studies, filgotinib (a selective JAK-1 inhibitor) was shown to improve the signs and symptoms of RA (compared with placebo), either as monotherapy or when added to MTX.DARWIN 1 included 594 patients with moderate to severe RA on a stable dose of MTX, while DARWIN 2 included 283 patients who stopped taking MTX before the start of the study. After 12 weeks’ treatment, significantly more patients who were receiving filgotinib 100 mg or 200 mg daily in DARWIN 1 or any filgotini...

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Outcomes of Tumor Necrosis Factor Inhibitor Cycling versus Switching to a Disease-modifying Anti-rheumatic Drug with a New Mechanism of Action Among Patients with Rheumatoid Arthritis

J Med Econ 2017;20:464–73

This retrospective study looked at claims-based datasets to establish whether it is preferable to switch to another TNF inhibitor (TNFi) or to a therapy with a different mechanism of action (MOA) when RA treatment failure occurs with an initial TNFi, due to inadequate response or lack of tolerability.Administrative claims data from a large US database were used to compare treatment patterns, treatment effectiveness (based on fulfillment of six criteria) and costs in in the 12 months after RA pat...

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