Rheumatoid Arthritis
Conditions
Brief summary
The purpose of this study is to assess the effect of disease-modifying anti-rheumatic drugs (DMARDs) dose reduction in patients with rheumatoid arthritis (RA). Remission is the treatment target in RA, but knowledge about the best way to treat RA patients who achieve sustained remission is limited. DMARDs have potential serious adverse events, and biologic DMARDs are costly to the society. The objectives for ARCTIC REWIND are to assess the effect of tapering and withdrawal of DMARDs on disease activity in RA patients in sustained remission, to study predictors for successful tapering and withdrawal of DMARDs in this patient group, and to study cost-effectiveness of different treatment options in RA remission. ARCTIC REWIND is a randomized, open, controlled, parallel-group, multicenter, phase IV, non-inferiority strategy study. Patients with less than five years of disease duration and stable remission for at least 12 months are randomized to either continued stable treatment or tapering and withdrawal of DMARDs, including tumor necrosis factor (TNF) inhibitors and synthetic DMARDs. Patients are assessed by clinical examination, patient reported outcome measures, ultrasonography, MRI and X-ray, and monitored for adverse events. The primary endpoint of the study is the proportion of patients who are non-failures (have not experienced a flare) at 12 months. Secondary endpoints include composite disease activity scores and remission criteria, joint damage and inflammation assessed by various imaging modalities, work participation, health care resource use and health related quality of life.
Interventions
DRUGTNF inhibitors
DRUGSynthetic DMARD(s)
DRUGCo-medication: Synthetic DMARDs
Synthetic DMARDs given as co-medication for TNF inhibitors as appropriate.
Sponsors
The Research Council of Norway
South-Eastern Norway Regional Health Authority
Diakonhjemmet Hospital
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No
Inclusion criteria
* Rheumatoid arthritis according to the 2010 American College of Rheumatology (ACR)/European League Against Rheumatism (EULAR) classification criteria * Male or non-pregnant, non-nursing female * \>18 years of age and \<80 years of age * Patient in the TNF-inhibitor group: Any disease duration. Patient in the synthetic DMARD group: RA diagnosis after 01.01.2010. * Sustained remission for ≥12 months according to DAS or Disease Activity Score based on 28 joints (DAS28), with documented remission status at a minimum of 2 consecutive visits during the last 18 months OR participation in the first ARCTIC trial * DAS \<1.6 and no swollen joints at inclusion OR participation in the first ARCTIC trial * Unchanged treatment with TNF inhibitors and/or synthetic DMARDs during the previous 12 months, with a stable or reduced dose of glucocorticosteroids OR participation in the first ARCTIC trial * Subject capable of understanding and signing an informed consent form * Provision of written informed consent
Exclusion criteria
* Abnormal renal function, defined as serum creatinine \>142 μmol/L in female and \>168 μmol/L in male, or a glomerular filtration rate (GFR) \<40 mL/min/1.73 m2 * Abnormal liver function (defined as aspartate transaminase (ASAT)/alanine aminotransferase (ALAT) \>3x upper normal limit), active or recent hepatitis, cirrhosis * Major co-morbidities, such as severe malignancies, severe diabetic mellitus, severe infections, uncontrollable hypertension, severe cardiovascular disease (NYHA class 3 or 4) and/or severe respiratory diseases * Leukopenia and/or thrombocytopenia * Inadequate birth control, pregnancy, and/or breastfeeding * Indications of active tuberculosis * Psychiatric or mental disorders, alcohol abuse or other substance abuse, language barriers or other factors which makes adherence to the study protocol impossible.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Proportion of patients who are non-failures (have not experienced a flare) | 12 months | Flare is defined as composite measure: (1) An increase in disease activity score (DAS) to \>1.6 AND (2) a change in DAS of at least 0.6 AND (3) \> 1 swollen joint. If a patient does not fulfill this formal definition, but experiences a clinically significant flare according to the investigator and patient, this is treated as a flare. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Disease Activity Score in 28 joints (DAS28) | 12 months, with subsequent long-term analyses after 24 months and 36 months | The 28-joint Disease Activity Score (DAS28) includes the 28- tender joint counts (TJC28), 28-swollen joint counts (SJC28), Erythrocyte Sedimentation Rate (ESR) and Patient Global Assessment (PGA) on a VAS. |
| Simplified Disease Activity Index (SDAI) | 12 months, with subsequent long-term analyses after 24 months and 36 months | SDAI includes TCJ28, SJC28, PGA, physician's global assessment of disease activity on a VAS 0-100 mm (PhGA) and C-reactive protein (CRP). |
| Clinical Disease Activity Index (CDAI) | 12 months, with subsequent long-term analyses after 24 months and 36 months | CDAI includes TCJ28, SJC28, PGA and PhGA. |
| Swollen joint count | 12 months, with subsequent long-term analyses after 24 months and 36 months | Swollen joint counts are performed on 44 joints, with total joint count ranging from 0 to 44. |
| Tender joint count | 12 months, with subsequent long-term analyses after 24 months and 36 months | Tender joints is assessed by Ritchie Articular Index which assesses tenderness of 26 joint regions, based on summation of joint responses after applying firm digital pressure. The index ranges from 0 to 3 for individual measures and the sum 0 to 78 overall. |
| Erythrocyte Sedimentation Rate (ESR) | 12 months, with subsequent long-term analyses after 24 months and 36 months | Assessment of ESR in mm/h |
| C-reactive protein (CRP) | 12 months, with subsequent long-term analyses after 24 months and 36 months | Assessment of CRP in mg/L |
| Patient's assessment of disease activity (PGA) | 12 months, with subsequent long-term analyses after 24 months and 36 months | PGA is the patient's assessment of disease activity on a VAS 0-100 mm. |
| Physician's global assessment of disease avtivity (PHGA) | 12 months, with subsequent long-term analyses after 24 months and 36 months | PHGA is the investigator's assessment of disease activity on a VAS 0-100 mm. |
| Health Assessment Questionnaire (HAQ-PROMIS) | 12 months, with subsequent long-term analyses after 24 months and 36 months | The HAQ-PROMIS is a questionnaire evaluating the physical function in patients with RA. |
| EuroQol-5 Dimension (EQ-5D) | 12 months, with subsequent long-term analyses after 24 months and 36 months | EQ-5D is a standardised instrument for use as a measure of health outcome. |
| Medical Outcomes Study Short-Form 36-item (SF-36) Physical and Mental Component Summary Score | 12 months, with subsequent long-term analyses after 24 months and 36 months | The SF-36 is a multi-purpose, short-form health survey with only 36 questions. It yields an 8-scale profile of functional health and well-being scores as well as psychometrically-based physical and mental health summary measures and a preference-based health utility index. |
| Work performance | 12 months, with subsequent long-term analyses after 24 months and 36 months | 1. Absenteeism (work time missed) 2. Presenteeism (impairment at work / reduced on-the-job effectiveness) 3. Work productivity loss (overall work impairment / absenteeism plus presenteeism) 4. Activity Impairment |
| Disease Activity Score (DAS) | 12 months, with subsequent long-term analyses after 24 months and 36 months | The DAS is a composite score that includes the Ritchie articular index (RAI), the 44- swollen joint counts (SJC-44), the Erythrocyte Sedimentation Rate (ESR) and a general health (GH) assessment on a Visual Analogue Scale (VAS). The DAS is calculated as follows: DAS = 0.54\*sqrt(RAI) + 0.065\*(SJC-44) + 0.33\*Ln(ESR) + 0.0072\*GH |
| Ultrasonography (subclinical synovitis) | 12 months, with subsequent long-term analyses after 24 months and 36 months | 36 joints and 2 tendons will be scored for both grey scale and power doppler synovitis on a 0-3 scale. |
| DAS-remission | 12 months, with subsequent long-term analyses after 24 months and 36 months | Remission is defined as a DAS-score \<1.6 |
| DAS28-remission | 12 months, with subsequent long-term analyses after 24 months and 36 months | Remission is defined as a DAS28 score \< 2.6 |
| SDAI-remission | 12 months, with subsequent long-term analyses after 24 months and 36 months | Remission is defined as a SDAI score ≤ 3.3 |
| CDAI-remission | 12 months, with subsequent long-term analyses after 24 months and 36 months | Remission is defined as a CDAI score ≤ 2.8 |
| ACR/EULAR Boolean remission | 12 months, with subsequent long-term analyses after 24 months and 36 months | The patient must satisfy all of the following in order to achieve ACR/EULAR remission: * RAI ≤ 1 * SJC44 ≤ 1 * CRP ≤ 1 * PGA ≤ 1 (on a scale 0-10, in this study ≤ 14 on a scale 0-100) |
| No swollen joint | 12 months, with subsequent long-term analyses after 24 months and 36 months | The percentage of patients with no swollen joints will be assessed |
| Radiographic outcome | 12 months, with subsequent long-term analyses after 24 months and 36 months | No radiographic progression |
| Ultrasound outcome | 12 months, with subsequent long-term analyses after 24 months and 36 months | No ultrasound power Doppler signal in any joint. |
| American College of Rheumatology (ACR) response | 12 months, with subsequent long-term analyses after 24 months and 36 months | If a patient has experienced a flare, and treatment has been escalated, the ACR 2050/70/90 response will be calculated. |
| The European League Against Rheumatism (EULAR) response | 12 months, with subsequent long-term analyses after 24 months and 36 months | If a patient has experienced a flare, and treatment has been escalated, the EULAR response will be calculated. |
| The Food and Drug Administration (FDA) major clinical response | 12 months, with subsequent long-term analyses after 24 months and 36 months | If a patient has experienced a flare, and treatment has been escalated, the FDA major clinical response will be calculated. |
| Medication | 12 months, with subsequent long-term analyses after 24 months and 36 months | The number of patients on different conventional synthetic disease-modifying antirheumatic drugs (csDMARDs) and biologic therapy. Dose of DMARDs in users will be recorded, prednisolone usages and number of intraarticular injections. |
| Radiographic joint damage | 12 months, with subsequent long-term analyses after 24 months and 36 months | Radiographs of hands (posterior/anterior) and foot (anterior/posterior) will be taken at baseline, 12, 24 and 36 months. The modified Sharp van der Heijde Score (vdHSS) will be calculated, including an erosion score and a joint space narrowing score. |
Countries
Norway
Outcome results
None listed