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NCT05767775

Synovial and Adipose Tissue Composition in Overweight/Obese Patients With Active Rheumatoid Arthritis Under JAK/STAT Inhibition

Status unknown Last updated 14 March 2023
What this trial tests

trial testing Assessment of synovial- and adipose tissue-derived inflammatory biomarkers in Rheumatoid Arthritis in 30 participants. Status unknown.

Timeline
1 June 2019
Primary endpoint
31 August 2022
15 March 2023

Quick facts

Lead sponsorFondazione Policlinico Universitario Agostino Gemelli IRCCS
StatusStatus unknown
Study typeOBSERVATIONAL
Enrollment30
Start date1 June 2019
Primary completion31 August 2022
Estimated completion15 March 2023
Sites1 location across Italy

Drugs / interventions tested

Conditions studied

Sponsor

Fondazione Policlinico Universitario Agostino Gemelli IRCCS

Who can join

Adults 18 to 75, any sex, with Rheumatoid Arthritis. Patients with the condition only — healthy volunteers not accepted.

Sponsor's own description

Rheumatoid Arthritis (RA) is a chronic autoimmune disease that affects nearly 1% of the general population worldwide leading to joint inflammation, disability and increate mortality. Several factors are associated with disease activity and treatment outcomes. Among them, overweight/obesity status was demonstrated to be associated with higher risk of RA development and most importantly to different treatment response to biological DMARDs. Moreover, overweight/obese RA patients do show higher degree of synovial inflammation compared to lean RA patients. In this context, adipose tissue accumulation is associated with higher inflammatory burden through the secretion by activated mature adipocytes of adipokines with pro-inflammatory properties on innate and adaptive immune cells. Among them, Leptin is an important adipokine, released by mature adipocytes with multiple activating properties on immune cells as monocytes, macrophages, dendritic cells, T and B lymphocytes acting through the activation of its receptor LEPR via JAK/STAT pathway. In particular, leptin exerts its effects on macrophages populations through the promotion of M1 differentiation with pro-inflammatory phenotype. In our research hypothesis we expect that leptin levels does correlate with immunohistochemical scores of synovial inflammatory cells (CD68+, CD21+, CD20+ and CD3+) and CD31+ synovial vessels. Moreover, we expect that the inhibition of JAK/STAT signal using Tofacitinib may interfere with leptin activation action on resident synovial inflammatory cells expressing LEPR (as CD68+, CD20+ and CD3+) in particular restoring the M1/M2 phenotype ratio within resident macrophages populations. Finally, we expect that the inhibition of JAK/STAT signaling pathway by Tofacitinib will result in a significant reduction of synovitis degree in patients with higher leptin expression due to adipose tissue activation.

Publications & conference data

No peer-reviewed publications indexed yet for this trial.

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Data sources for this page

Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT05767775.

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