Publications

免疫介在性炎症疾患におけるヤヌスキナーゼ阻害薬の相違

Rheumatology (Oxford) 2023;63(2):298–308 doi 10.1093/rheumatology/kead448

Taylor PC,

Choy E,

Baraliakos X,

Szekanecz Z,

Xavier RM,

Isaacs JD,

Strengholt S,

Parmentier JM,

Lippe R,

Tanaka Y

JAKis differ in structure, which affects their inhibitory concentration for different JAKs.

This review by Taylor, et al. compares the pharmacological profiles of JAKis, including abrocitinib, baricitinib, filgotinib, peficitinib, tofacitinib, and upadacitinib.

Keywords:

• JAK,
• Basic Science,
• MOA

関節リウマチに対するトファシチニブの有害事象として出現したIgA 血管炎

Intern Med. 2020;59(6):817-821

Itoh I,

Kasuno K,

Yamamoto C,

Takahashi N,

Shimizu H,

Ojima T,

Hayashi S,

Kimura H,

Iwano M

Nephrotoxicity is a key side effect of NSAIDs and DMARDs used to treat RA, while biologics can reportedly cause proliferative glomerulonephritis or crescentic glomerulonephritis. This report reviews a patient on TOF presenting IgA vasculitis as an adverse effect that fully resolved following termination of TOF.Drug induced IgA vasculitis has been previously described for anti-TNFɑ therapies, but this is the first report with JAK inhibitor therapy. This is a case report of a 67-year old woman wit...

Keywords:

• JAK,
• Tofacitinib,
• Safety

フェーズ2と3試験におけるウパダシチニブの曝露と反応性に 関する有効性安全性解析 関節リウマチにおけるベネフィットリスク

Clin Pharmacol Ther . 2020 Apr;107(4):994-1003. doi: 10.1002/cpt.1671.

Nader A,

Mohamed M-EF,

Winzenborg I,

Doelger E,

Noertersheuser P,

Pangan AL,

Othman AA

UPA 15 mg provided the optimal benefit-risk in RA through maximizing efficacy with only small incremental benefit with 30 mg, and with consistency across RA subpopulations and with UPA monotherapy or combination with csDMARDs. Exposure-response analyses were conducted using combined data from two Phase 2b and five Phase 3 studies in order to characterise the relationship between plasma exposure and efficacy, as well as to select safety parameters using the totality of the data in subjects with R...

Keywords:

• JAK,
• Updacitinib,
• Efficacy,
• Safety

年齢と腎障害が選択的JAK1阻害薬であるフィルゴチニブの薬力学的安定性に及ぼす影響

Br J Clin Pharmacol 2018 Dec;84(12):2779-2789. DOI:10.1111/bcp.13726

Namour F,

Fagard L,

Van der AA,

Harrison P,

Xin Y,

Tasset C

Age and renal impairment (RI) had limited impact on the pharmacokinetics (PK) of filgotinib (FIL) but, in subjects with severe RI, exposure to the FIL metabolite was increased. FIL is a selective JAK1 inhibitor that is extensively, rapidly and proportionately absorbed after oral dosing from 50–200mg. Its major metabolite has a similar JAK1 selectivity profile but with reduced potency. In humans, exposure to the metabolite is higher by approximately 16–20 fold compared with the parent FIL. FIL an...

Keywords:

• JAK,
• Filgotinib,
• PK/PD

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

Changes in serum creatinine in patients with active rheumatoid arthritis treated with tofacitinib: results from clinical trials

Arthritis Res Ther. 2014;16(4):R158

Isaacs JD,

Zuckerman A,

Krishnaswami S,

et al.

Despite preclinical and healthy volunteer studies of tofacitinib showing no evidence of nephrotoxicity, increases in mean serum creatinine levels have been observed in patients treated with the drug during the RA clinical development programme. This report explores the clinical significance of this change.

Serum creatinine values and renal adverse event data were pooled from patients who received =1 dose of tofacitinib either with background DMARDs or as monotherapy in five Phase 3 studie...

Keywords:

• JAK,
• Tofacitinib,
• Safety,
• Renal

Cytokine receptor signaling through the Jak–Stat–Socs pathway in disease

Molecular Immunology 2007; 44:2497-506

O'Sullivan LA,

Liongue C,

Lewis RS,

et al

This review from 2007 provides an overview of the largest cytokine receptor family, the haematopoietin receptors, as well as other key components involved in one of the major cytokine signalling pathways implicated in autoimmune and inflammatory diseases. This includes the Janus kinases (Jaks), signal transducers and activators of transcription (Stats) and suppressors of cytokine signalling genes (Socs). Essentially, when a cytokine binds to a receptor from this group a functional cytokine recep...

Keywords:

• JAK,
• Basic Science,
• MOA,
• Review

Janus kinases in immune cell signaling

Immunological Reviews 2009; 228:273-87

Ghoreschi K,

Laurence A,

O'Shea JJ

This review from 2009 describes the Janus Kinases (JAK) that includes JAK1, JAK2, and JAK3, a subgroup of non-receptor protein tyrosine kinases. This protein family has a diverse range of functions including roles in cell growth, survival, development, and differentiation of a variety of cells, and especially immune and haematopoietic cells. Current knowledge of protein structure, regulatory mechanisms, signalling pathways and intracellular interactions for the JAK family is reviewed. The paper ...

Keywords:

• JAK,
• MOA,
• Review