Cytokine Signalling Forum

Publications





February 19

Cardiovascular Safety During Treatment with Baricitinib in Rheumatoid Arthritis

Taylor PC, Weinblatt ME, Burmester GR, Rooney TP, Witt S, Walls CD, Issa M, Salinas CA, Saifan C, Zhang X, Cardoso A, González-Gay MA, Takeuchi T.
Arthritis Rheumatol. 2019 Jul;71(7):1042-1055.

This study indicates no association between exposure to BARI and MACE, arterial thrombotic events (ATE), or congestive heart failure (CHF). Overall IRs for venous thromboembolic event (VTE) in BARI-treated patients falls within the reported range for patients with RA. RA patients have a greater risk of cardiovascular (CV) diseases of arterial ischemic origin, and an increased risk of VTE. Studied frequencies of thromboembolic events in RA populations in the last decade has been reported as 2&nd...

Keywords: JAK, Baricitinib, Clinical, Safety

January 19

Comparative Risk of Venous Thromboembolism with Tofacitinib versus Tumour Necrosis Factor Inhibitor: A Cohort study of Rheumatoid Arthritis Patients

Desai RJ, Pawar A, Weinblatt ME, Kim SC.
Desai RJ, et al. Arthritis Rheumatol. 2019 June;71(6):892-900.

Occurrences of venous thromboembolism (VTE) in 50, 865 RA patients initiating Tofacitinib (TOF) or a TNF inhibitor (TNFi) was infrequent. No significant risk of VTE for TOF versus TNFi was observed. Safety concerns of JAK inhibitor BARI include potentially increased risk of VTE at the higher 4 mg dose. It’s unclear if this is attributable to JAK-inhibition and extends to TOF. This study compared the risk of VTE with TOF, versus TNFi in real-world settings with RA patients. RA patients in...

Keywords: JAK, Tofacitinib, Clinical, Safety

March 18

Effect of Discontinuation or Initiation of Methotrexate or Glucocorticoids on Tofacitinib Efficacy in Patients with Rheumatoid Arthritis: A Post Hoc Analysis

Fleischmann R, Wollenhaupt J, Cohen S, Wang L, Fan H, Bandi V, Andrews J, Takiya L, Bananis E, Weinblatt ME.
Rheumatol Ther 2018 Jun; 5(1):203–14. DOI: 10.1007/s40744-018-0093-7

Methotrexate (MTX) or Glucocorticoid (GC) discontinuation has little effect on CDAI response in patients given tofacitinib (TOF) for up to 3 years. Patients receiving TOF who showed initial improvements benefitted from initiation of MTX or GCs. Concomitant treatments such as MTX or GC are commonly used in combination with RA therapies to improve or accelerate clinical responses. However, their use is associated with many adverse events so clinicians aim to use them for a minimal duration. This ...

Keywords: JAK, Tofacitinib, Clinical, Efficacy

September 17

Patient-reported Outcomes from a Phase 3 Study of Baricitinib versus Placebo or Adalimumab in Rheumatoid Arthritis: Secondary Analyses from the RA-BEAM Study

Keystone EC, Taylor PC, Tanaka Y, Gaich C, DeLozier AM, Dudek A, Velasco Zamora J, Covarrubias Cobos JA, Rooney T, de Bono S, Arora V, Linetzky B, Weinblatt ME.
Ann Rheum Dis 2017;76(11):1853-1861. doi: 10.1136/annrheumdis-2017-211259

This paper describes the patient-reported outcome (PRO) data collected in RA-BEAM, a Phase 3 study of baricitinib compared with both placebo and adalimumab in patients with RA and an inadequate response to MTX. PRO measures evaluated include health-related quality of life (HRQOL), physical function, disability, fatigue, sleep, mental health status, work productivity and work activity impairment. The RA-BEAM study demonstrated that patients treated with baricitinib experienced a greater impro...

Keywords: JAK, Baricitinib, Clinical, PRO

March 17

Efficacy and Safety of ABT-494, a Selective JAK-1 Inhibitor, in a Phase IIb Study in Patients With Rheumatoid Arthritis and an Inadequate Response to Methotrexate

Genovese MC, Smolen JS, Weinblatt ME, Burmester GR, Meerwein S, Camp HS, Wang L, Othman AA, Khan N, Pangan AL and Jungerwirth S.
Arthritis Rheumatol 2016;68:2857–66

The summary and accompanying slide deck have been developed in conjunction with the Kremer et al. study (Study 2) which examined ABT-494 in TNF-IR patients in order to compare and contrast the data. In these two Phase 2b studies, ABT-494 (a novel selective JAK-1 inhibitor) was shown to be effective in patients with active RA who were non-responders to MTX or at least one TNF inhibitor. Patients with active RA who had an inadequate response to MTX (study 1) or were refractory to or intolerant ...

Keywords: JAK, Upadacitinib, Clinical, Phase 2

Translated by: JAK 1 |

August 16

A Randomized Phase 2b Study of ABT-494, a Selective JAK Inhibitor in Patients with Rheumatoid Arthritis and an Inadequate Response to Methotrexate

Genovese M, Smolen J, Weinblatt M, Burmester G, Meerwein S, Camp H, Wang L, Othman A, Khan N, Pangan A, Jungerwirth S.
Arthritis Rheumatol 2016; Accepted article DOI 10.1002/art-39808 [Epub 2016]

This dose-ranging study evaluated the efficacy of the novel, selective JAK1 inhibitor ABT-494 versus placebo in patients with moderate-to-severe RA and inadequate response (IR) to MTX. In this 12-week, randomised, double-blind study (BALANCE II), the efficacy and safety of ABT-494 dosed at 3mg, 6 mg, 12 mg, 18 mg (all twice daily) and 24 mg (once daily) was assessed. Patients included had not received prior biologic therapy. Of the 299 patients included in the analysis, the proportions of pati...

Keywords: JAK, Upadacitinib, Clinical, Phase 2

September 15

The Efficacy and Safety of Subcutaneous Clazakizumab in Patients with Moderate-to-Severe Rheumatoid Arthritis and Inadequate Response to Methotrexate: Results from a Phase IIb, Randomized, Double-Blind, Placebo/Active-Controlled, Dose-Ranging, Multinational Study

Weinblatt ME, Mease P, Mysler E, Takeuchi T, Drescher E, Berman A, Xing J, Zilberstein M, Banerjee S, Emery P.
Arthritis & Rheumatology. 2015 Jul 2. doi: 10.1002/art.39249. [Epub ahead of print]

The humanised monoclonal antibody, Clazakizumab (CLZ), binds to circulating interleukin-6 (IL-6) cytokine rather than the IL-6 receptor, blocking both classical and trans-signalling. The purpose of this phase 2B study was to evaluate the efficacy and safety of clazakizumab in patients with inadequate response to methotrexate (MTX). Data on selected response rates – ACR20/50/70, DAS28-CRP, SDAI ≤3.3, CDAI ≤2.8 and the ACR/EULAR Boolean definition – and adverse events were collec...

Keywords: IL-6, Clazakizumab, Clinical, Phase 2

June 13

An Oral Spleen Tyrosine Kinase (Syk) Inhibitor for Rheumatoid Arthritis

Weinblatt ME, Kavanaugh A, Genovese MC, et al.
The New England Journal of Medicine 2010; 363(14):1303-12

This is the first phase 2 study to be published for spleen tyrosine kinase (Syk) inhibitor R788 (fostamatinib). This phase 2 study ingestigated the efficacy and safety of fostamatinib in patients with active RA despite long-term treatment with methotrexate. In this 6-month, double-blind, placebo-controlled trial, patients were randomised to receive two doses of R788 (100 mg twice daily or 150 mg once daily) or placebo once or twice daily. Significantly more patients on R788 achieved ACR 20 respo...

Keywords: Cytokine Signalling, Clinical, Phase 2

An oral Syk kinase inhibitor in the treatment of rheumatoid arthritis: a three-month randomized, placebo-controlled, phase II study in patients with active rheumatoid arthritis that did not respond to biologic agents

Genovese MC, Kavanaugh A, Weinblatt ME, et al.
Arthritis & Rheumatism 2011; 63(2):337-45

This was the first phase 2 study to be published investigating the efficacy and safety of the spleen kinase (Syk) inhibitor R788 (fostamatinib) in patients with refractory rheumatoid arthritis (RA). In this multicentre, randomised, double-blind, placebo-controlled, 3-month trial, patients with active RA on stable background treatment (excluding biologics) were randomised to receive 100 mg R788 or placebo twice daily. Differences in ACR20 responses were significant at week 6 (p=0.003), but not th...

Keywords: Cytokine Signalling, Clinical, Phase 2

Effects of fostamatinib (R788), an oral spleen tyrosine kinase inhibitor, on health-related quality of life in patients with active rheumatoid arthritis: analyses of patient-reported outcomes from a randomized, double-blind, placebo-controlled trial

Weinblatt ME, Kavanaugh A, Genovese MC, et al.
The Journal of Rheumatology 2013; 40(3):369-78

This phase 2 clinical trial assessed the influence of fostamatinib on patient reported outcomes (PROs) in 457 patients with active rheumatoid arthritis (RA) and an inadequate response to methotrexate (MTX). Patients received either placebo or fostamatinib 100 mg twice daily or 150 mg once daily (1:1:1) for 24 weeks in addition to their baseline MTX. Patients taking fostamatinib 100 mg twice daily had statistically significant improvements in health-related quality of life scores for pain, p...

Keywords: Cytokine Signalling, Clinical, Phase 2