April 2021

Sélectivité des JAK et implications pour l'inhibition clinique de la signalisation pharmacodynamique des cytokines par le filgotinib, l'upadacitinib, le tofacitinib et le baricitinib

Ann Rheum Dis. 2021 Mar 19:annrheumdis-2020-219012. Epub ahead of print. DOI: 10.1136/annrheumdis-2020-219012

The first study to combine in vitro inhibition of cytokine responses in whole blood with clinical pharmacokinetics of individual JAKinibs to model daily cytokine-mediated pharmacodynamic profiles in healthy individuals and patients with RA, has demonstrated that JAKinib potencies depended on cytokine stimulus, pSTAT readout and cell type.Traves and colleagues have observed that JAKinibs have unique, differential effects on specific cytokine signalling pathways, dependent on cytokine stimulus, ST...

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Filgotinib, Nouvel Inhibiteur Préférentiel de JAK1 Pour le Traitement de la Polyarthrite Rhumatoïde : Vue d'Ensemble des Essais Cliniques

Mod Rheumatol. 2021 Mar 19:1-26. Epub ahead of print. DOI 10.1080/14397595.2021.1902617

Filgotinib is the latest JAKinib to enter the international market for the treatment of RA, receiving regulatory approval in Japan and Europe late last year. In this review paper, Tanaka Y et al. examine the clinical evidence supporting its use as a later-line treatment, in accordance with international RA management guidelines, and provide their expert opinions on JAKinibs from a clinical perspective.The core clinical programme evaluating filgotinib in patients with moderately-to-severely activ...

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March 2021

Innocuité et Efficacité du Filgotinib : Résultats Jusqu'à 4 Ans d'une Étude d'Extension Ouverte des Programmes de Phase 2 Sur la Polyarthrite Rhumatoïde

J Rheumatol. 2021 Feb 1:jrheum.201183. DOI: 10.3899/jrheum.201183.

A long-term extension study of filgotinib showed consistent safety profile and sustained efficacy with the drug for up to four years. The DARWIN 3 study, for patients who previously completed either the 24-week DARWIN 1 study (filgotinib + MTX) or the DARWIN 2 study (filgotinib monotherapy), enrolled 739 patients with RA. At the time of analysis, 440 patients had received four years or more of filgotinib. Exposure-adjusted incidence rate per 100 patient-years-of-exposure for TEAEs was 24.6 in th...

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February 2021

Filgotinib en Association avec le Méthotrexate ou en Monothérapie versus Méthotrexate en Monothérapie chez les Patients Atteints de Polyarthrite Rhumatoïde Active et Peu ou Pas Exposés au Méthotrexate : l'Essai de Phase 3, Randomisé et Contrôlé FINCH 3

Ann Rheum Dis. 2021 Jan 15:annrheumdis-2020-219213.

Filgotinib doses in combination with MTX have shown improved signs, symptoms and physical function in patients with RA and limited or no prior MTX exposure. FIL 200mg monotherapy did not have a superior ACR20 response rate versus MTX. This 52-week, phase 3 study evaluated FIL in 1252 patients with RA. Patients were randomised to FIL 200mg + MTX or FIL 100mg + MTX, FIL 200 mg monotherapy, or MTX monotherapy. The primary endpoint was the proportion patients achieving ACR20 at week 24. Safety was e...

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Filgotinib Versus Placebo ou Adalimumab Chez les Patients Atteints de Polyarthrite Rhumatoïde et Présentant une Réponse Inadéquate au Méthotrexate : Essai Clinique Randomisé De Phase III

Ann Rheum Dis. 2021 Jan 27:annrheumdis-2020-219214

Filgotinib improved RA signs and symptoms, physical function, and inhibited radiographic progression. FIL 200mg plus MTX, but not FIL 100mg plus MTX showed non-inferiority to ADA plus MTX, based on DAS28(CRP) low disease activity. FIL was also well tolerated in RA patients with inadequate response to MTX.This 52-week, phase 3 randomised clinical trial (FINCH 1) evaluated the efficacy and safety of FIL in patients with RA randomised to FIL 200 or 100mg, ADA 40mg, or placebo, all with background M...

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December 2020

Highlights of 2020

Please click the links below to go to the CSF review of each paper

2020 unfolded apace, dominated by COVID-19 - we have all had to adapt in our practice and in our knowledge base. Amid this there have continued to be a constant flow of publications and science in cytokine signaling, and as in previous years as we come the end of 2020, I will highlight some of the notable papers of the year. You can find the most notable papers, as selected by CSF Steering Committee Chair Professor Iain McInnes, with links to their respective detailed summaries below:

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April 2020

Efficacité et Innocuité Relatives du Tofacitinib, Baricitinib, Upadacitinib et Filgotinib par Rapport à l'Adalimumab Chez les Patients Atteints de Polyarthrite Rhumatoïde Active

Z Rheumatol. 2020 DOI: 10.1007/s00393-020-00750-1

This Bayesian network meta-analysis, comparing the relative efficacy and safety of JAK inhibitors, determined BARI 4mg + MTX and UPA 15mg + MTX were the most effective. The analysis included 5451 patients with an inadequate response to MTX and active RA, from four RCTs. Relative effects were converted into a probability allowing each treatment to be ranked. BARI and UPA had significantly higher ACR20 response rates than ADA 40mg + MTX whilst TOF 5mg and FIL 200mg had comparable ACR20 response ra...

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February 2020

Le Filgotinib, Un Inhibiteur de JAK1, Module les Biomarqueurs Liés à la Maladie dans la Polyarthrite Rhumatoïde : Résultats de Deux Essais Contrôlés Et Randomisés de Phase 2b

Rheumatol Ther. 2020 DOI: 10.1007/s40744-019-00192-5

In this study examining the effect of FIL on a panel of biomarkers, FIL down-modulated several key inflammatory mediators of signalling pathways in RA - independent of MTX background therapy. This confirmed the strong network effects of the JAK1 node in autoimmunity, matrix and cartilage degradation, angiogenesis, and leukocyte adhesion and recruitment. Biomarkers key to RA pathophysiology were measured at baseline, Wk4 and Wk12 in FIL 100 mg, FIL 200 mg or PBO treatment groups from two phase 2b...

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December 2019

Highlights of 2019

Please click the links below to go to the CSF review of each paper

2019 was another remarkable year in cytokine signalling. We can be optimistic that clinical practice for inflammatory arthritis will continue to improve, with promising long-term safety data supporting the use of established JAK inhibitors; tofacitinib and baricitinib, in addition to exciting phase III clinical data for filgotinib and newly approved upadacitinib. You can find the most notable papers, as selected by CSF Steering Committee Chair Professor Iain McInnes, with links to their respecti...

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August 2019

Effet du Filgotinib par rapport au placebo sur la réponse clinique chez des patients atteints de Polyarthrite Rhumatoïde modérée à sévère réfractaire au traitement antirhumatismal modificateur de la maladie: l'essai clinique randomisé FINCH 2

JAMA 2019 322(4):315-325

Among RA patients with an inadequate response or intolerance to bDMARDs, filgotinib (FIL) doses, compared to PBO resulted in significantly greater proportions achieving a clinical response at Wk12.Patients with active RA despite treatment with bDMARD therapy need treatment options. The FINCH 2 Phase 3 study compared the effects of FIL vs PBO for the treatment of RA patients with inadequate response or intolerance to ≥1 prior bDMARDs. Patients were randomized in a 1:1:1 ratio, receiving FIL 200 m...

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