Publications

Efficacy and safety of tofacitinib as monotherapy in Japanese patients with active rheumatoid arthritis: a 12-week, randomized, phase 2 study

Modern Rheumatology. 2015 Jul;25(4):514-21. doi: 10.3109/14397595.2014.995875.

Tanaka Y,

Takeuchi T,

Yamanaka H,

Nakamura H,

Toyoizumi S,

Zwillich S.

The oral Janus kinase (JAK) inhibitor, Tofacitinib, preferentially inhibits signalling by heterodimeric receptors associated with JAK3 and/or JAK1, blocking signalling for several cytokines. The purpose of this study was to evaluate the efficacy of tofacitinib monotherapy versus placebo in Japanese patients with inadequate response to disease-modifying anti-rheumatic drugs (DMARDs). Data on response rates – ACR20/50/70, DAS28-4(ESR), and HAQ-DI – laboratory parameters and adverse events were col...

Keywords:

• JAK,
• Tofacitinib,
• Phase 2

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

Arthritis & Rheumatology. 2015 Jul 2. doi: 10.1002/art.39249. [Epub ahead of print]

Weinblatt ME,

Mease P,

Mysler E,

Takeuchi T,

Drescher E,

Berman A,

Xing J,

Zilberstein M,

Banerjee S,

Emery P

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 collected from 418 patie...

Tofacitinib, an oral Janus kinase inhibitor, for the treatment of chronic plaque psoriasis: results from two, randomised, placebo-controlled, Phase 3 trials

British Journal of Dermatology. 7 July 2015 DOI: 10.1111/bjd.14018. [Epub ahead of print]

Papp KA,

Menter MA,

Abe M,

Elewski B,

Feldman SR,

Gottlieb AB,

Langley R,

Luger T,

Thaci D,

Buonanno M,

Gupta P,

Proulx J,

Lan S,

Wolk R; OPT Pivotal 1 and OPT Pivotal 2 Investigators.

The management of moderate to severe chronic plaque psoriasis has benefited from the introduction of biological therapies, but unmet needs still remain, especially for oral therapies. Tofacitinib is an orally active agent that blocks signalling of key cytokines implicated in the immune response and inflammatory pathways of psoriasis. The Phase III studies presented in this paper analysed efficacy and safety endpoints.Both studies demonstrated that tofacitinib in both 5 mg and 10 mg twice daily d...

Keywords:

• JAK,
• Tofacitinib,
• Phase 3

Efficacy and safety of subcutaneous tocilizumab versus intravenous tocilizumab in combination with traditional DMARDs in patients with RA at week 97 (SUMMACTA)

Ann Rheum Dis. 10 May 2015 doi:10.1136/annrheumdis-2015-207281 [Epub ahead of print]

Gerd R Burmester,

Andrea Rubbert-Roth,

Alain Cantagrel,

Stephen Hall,

Piotr Leszczynski,

Daniel Feldman,

Madura J Rangaraj,

Georgia Roane,

Charles Ludivico,

Min Bao,

Lucy Rowell,

Claire Davies,

Eduardo F Mysler

Tocilizumab (TCZ) has demonstrated efficacy and a well-established safety profile for intravenous (IV) administration. The Phase III SUMMACTA study evaluated the efficacy and safety of subcutaneous tocilizumab (TCZ-SC) in combination with DMARDS in patients with moderate-to-severe RA and inadequate response to ≥1 DMARD. Patients were randomised to receive TCZ-SC 162 mg weekly or TCZ-IV 8 mg/kg q4w in combination with DMARDs. After a 24-week double-blind period, patients receiving TCZ-SC were re-...

TNF-α and IL-6 differentially regulate Dkk-1 in the inflamed arthritic joint

Arthritis Rheumatol. 2015 May 4. doi: 10.1002/art.39183. [Epub ahead of print]

Yeremenko N,

Zwerina K,

Rigter G,

Pots D,

Fonseca J,

Zwerina J,

Schett G,

Baeten D.

Different inflammatory joint diseases have distinct patterns of bone damage, but the molecular pathways determining each one remains poorly defined. This study investigates the wingless (Wnt)-signalling pathway, by analysing the expression of Dkk-1 (an inhibitor of the Wnt pathway) and its regulation by the pro-inflammatory cytokines TNF-α and IL-6 in SpA versus RA inflamed peripheral joints.Findings from the study show an inverse correlation of Dkk-1 with IL-6 in vivo and a differential regulat...

Keywords:

• IL-6,
• Basic Science,
• MOA,
• Review

The preclinical pharmacology of the high affinity anti-IL-6R Nanobody® ALX-0061 supports its clinical development in rheumatoid arthritis

Arthritis Res Ther. 2015 May 20;17(1):135. [Epub ahead of print]

Van Roy M,

Ververken C,

Beirnaert E Hoefman S,

Kolkman J Vierboom M,

Breedveld E,

't Hart B,

Poelmans S,

Bontinck L,

Hemeryck A,

Jacobs S,

Baumeister J,

Ulrichts H

Over the last decade, there has been a shift in treatment outcomes for RA; moving from symptom control to achieving remission. The TNF inhibitors have revolutionised treatment in this way, yet there is still a proportion of patients who fail to improve or reach remission. As such, new molecules for the treatment of RA are needed to be developed.This study investigates the in vitro and in vivo properties of ALX-0061, a bispecific Nanobody with a high affinity and potency for IL-6R.Positive pharma...

Keywords:

• IL-6,
• Preclinical,
• MOA,
• Review

Differential Effects of IL-17A and TNF-α on Osteoblastic Differentiation of Isolated Synoviocytes and on Bone Explants from Arthritis Patients

Frontiers in Immunology. 2015;6:151. doi:10.3389/fimmu.2015.00151

Osta B,

Roux JP,

Lavocat F,

Pierre M,

Ndongo-Thiam N,

Boivin G,

Miossec P

Inflammatory joint diseases such as RA and OA are characterised by bone and consequent joint destruction. The role of fibroblast-like synoviocytes (FLS) in the pathogenesis of such diseases is already established. This study compared the effects of TNF-α and IL-17A on osteogenic differentiation of isolated FLS and on whole bone explants from 3 RA and 10 OA patients.Results showed that isolated RA-FLS appeared more sensitive to the effects of TNF-α and IL-17A compared to OA-FLS. These findings su...

Keywords:

• IL-17,
• Basic Science

Evaluation of the effect of tofacitinib on measured glomerular filtration rate in patients with active rheumatoid arthritis: results from a randomised controlled trial

Arthritis Res Ther. 2015 Apr 6;17(1):95.

Kremer JM,

Kivitz AJ,

Simon-Campos JA,

Nasonov EL,

Tony HP,

Lee SK,

Vlahos B,

Hammond C,

Bukowski J,

Li H,

Schulman SL,

Raber S,

Zuckerman A,

Isaacs JD

Mean increases from baseline in patient serum creatinine (SCr) levels have been observed in the clinical development programme for the JAK inhibitor tofacitinib. These increases predominantly occurred within the first three months, and reversed with tofacitinib withdrawal.

This phase 1, randomised, placebo-controlled, parallel-group, 2-period study assessed changes in measured glomerular filtration rate (mGFR) with tofacitinib, relative to placebo, in 148 patients with active RA. Result...

Keywords:

• JAK,
• Tofacitinib,
• Safety,
• Renal

Tofacitinib, an oral Janus kinase inhibitor: analysis of malignancies across the rheumatoid arthritis clinical development programme

Ann Rheum Dis. 2015 Apr 22. pii: annrheumdis-2014-205847. doi: 10.1136/annrheumdis-2014-205847. [Epub ahead of print]

Curtis JR,

Lee EB,

Kaplan IV,

Kwok K,

Geier J,

Benda B,

Soma K,

Wang L,

Riese R

The developments of certain malignancies associated with chronic inflammatory diseases such as RA is known to occur to a greater extent than that of the general population. It is also know that certain RA treatments can affect malignancy rates. As such, newer immunomodulatory agents, such as the JAK inhibitor tofacitinib, are closely monitored for safety events of special interest, including malignancies.

This paper analyses pooled malignancy data from the tofacitinib RA clinical develop...

Keywords:

• JAK,
• Safety,
• Malignancy,
• Review

Super-enhancers delineate disease-associated regulatory nodes in T cells

Nature. 2015 Feb 16. doi: 10.1038/nature14154. [Epub ahead of print]

Vahedi G,

Kanno Y,

Furumoto Y,

Jiang K,

Parker SC,

Erdos MR,

Davis SR,

Roychoudhuri R,

Restifo NP,

Gadina M,

Tang Z,

Ruan Y,

Collins FS,

Sartorelli V,

O'Shea JJ.

Transcription machinery (proteins responsible for activating or ‘switching off’ genes) is not distributed in the genome in a symmetrical (or even) manner. Some parts of the genome, so called super-enhancers (SEs), accumulate an exceptionally high level of proteins relevant to the regulation of transcription (i.e. the machinery is concentrated in particular parts of the genome). In this paper, the investigators asked about the locale of these regions in the genome of T cells. Then they addressed...

Keywords:

• Preclinical,
• MOA