Rheumatoid arthritis is a common condition affecting approximately 1% of the United Kingdom population; it is an autoimmune disease where the body's natural defences (the immune system) attack the body itself resulting, most notably, in joint damage and arthritis. To help prevent this, patients with rheumatoid arthritis need to take disease-modifying anti-rheumatic drugs (DMARDs). As rheumatoid arthritis is a life-long condition, these drug treatments are prescribed as long-term medications taken for many years. With successful drug treatment, many patients are able to achieve an excellent control of their disease and their arthritis can go in to remission. At present, there are no markers which can reliably predict which of these patients can reduce their drug treatment, and hence benefit from a lower risk of side effects and inconvenience, without an increase in their arthritis activity. We invite patients with stable rheumatoid arthritis to participate in this study conducted by Newcastle upon Tyne Hospitals NHS Foundation Trust in collaboration with Newcastle University and funded by the Wellcome Trust. Patients whose arthritis is confirmed as being in remission will be able to stop their DMARD medication and be monitored for a period of 6 months. Patients whose arthritis activity increases during this time will be able to restart their DMARD medication, whereas those patients whose arthritis remains in remission will be able to stay off DMARD medication. The main aim of this study is to identify clinical, ultrasound and blood markers that can predict which patients will remain in remission after stopping DMARD medication. If identified, these markers could be a useful guide to doctors and patients in the future when deciding whether to stop DMARD therapy.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
BASIC_SCIENCE
Masking
NONE
Enrollment
74
Complete cessation of non-biologic DMARD therapy (single or combination of methotrexate, sulphasalazine and/or hydroxychloroquine)
Newcastle NIHR Clinical Research Facility, Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust
Newcastle upon Tyne, Tyne & Wear, United Kingdom
Time-to-flare of arthritis activity following DMARD cessation
Flare of arthritis activity defined as Disease Activity Score in 28 Joints C-Reactive Protein (DAS28-CRP) score greater than or equal to 2.4
Time frame: From recruitment, assessed up to 6 months
Clinical biomarkers predictive of DMARD-free remission
Baseline clinical factors predictive of time-to-flare of arthritis activity following DMARD cessation.
Time frame: At recruitment
Ultrasound biomarkers of DMARD-free remission
Baseline musculoskeletal ultrasound biomarkers predictive of time-to-flare of arthritis activity following DMARD cessation, including presence or absence of greyscale synovitis/tenosynovitis and erosions.
Time frame: At recruitment
Genetic biomarkers of DMARD-free remission
Baseline signature of differential gene expression in peripheral CD4+ T cells predictive of DMARD-free remission at 6 months following DMARD cessation, as measured using RNA sequencing.
Time frame: At recruitment
Cytokine biomarkers of DMARD-free remission
Baseline signature of differential cytokine levels in peripheral blood predictive of time-to-flare of arthritis activity, as measured using a multiplex cytokine assay.
Time frame: At recruitment
Rheumatoid arthritis disease activity
Measured by Disease Activity Score in 28 joints (DAS28-CRP) score.
Time frame: At recruitment and at 1 month, 3 months and 6 months following DMARD cessation
Physical disability
Measured by Health Assessment Questionnaire Disability Index (HAQ-DI) questionnaire
Time frame: At baseline and at 6 months following DMARD cessation
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