How much does Disease Activity Score in 28 joints ESR and CRP calculations underestimate disease activity compared with the Simplified Disease Activity Index?

2014 ◽  
Vol 74 (6) ◽  
pp. 1132-1137 ◽  
Author(s):  
Roy Fleischmann ◽  
Désirée van der Heijde ◽  
Andrew S Koenig ◽  
Ronald Pedersen ◽  
Annette Szumski ◽  
...  
Keyword(s):  
Treatment Group ◽  
Disease Activity ◽  
Disease Activity Score ◽  
Activity Index ◽  
Disease Activity Index ◽  
Cumulative Distribution ◽  
Activity Score ◽  
Reactive Protein ◽  
American College Of Rheumatology ◽  
Rheumatoid Arthritis Disease

ObjectivesDisease Activity Score in 28 joints calculated with C-reactive protein (DAS28-CRP) is used instead of erythrocyte sedimentation rate (DAS28-ESR) to assess rheumatoid arthritis disease activity; however, values for remission and low disease activity (LDA) for DAS28-CRP have not been validated. American College of Rheumatology/European League Against Rheumatism (ACR/EULAR) guidelines suggest remission should be calculated by Simplified Disease Activity Index (SDAI) rather than DAS28-ESR. We examined values of remission and LDA of DAS28-CRP that correspond to the respective cut-off points for DAS28-ESR and SDAI from five clinical trials.MethodsDAS28-CRP cut-offs that best correspond to DAS28-ESR remission <2.6 and LDA ≤3.2 were obtained by cumulative distribution plots, receiver operating curves and maximum concordance and averaged for each approach, treatment group and study. Level of agreement between DAS28-CRP and DAS28-ESR remission and LDA cut-offs was compared against each other and versus SDAI remission ≤3.3 and LDA ≤11.ResultsPercentage of patients who achieved remission and LDA by DAS28-ESR cut-offs was greater for DAS28-CRP versus DAS28-ESR regardless of patient population or treatment group. Discordance between CRP and ESR cut-offs ranged from 4%–26% and 8%–23% for remission and LDA, respectively, and 19%–40% and 6%–11% for DAS28-CRP versus SDAI, respectively. Estimated (range) remission and LDA thresholds were 2.4 (2.2–2.6) and 2.9 (2.6–3.3), 1.9 (1.6–2.2) and 3.1 (3.1–3.3) and 2.2 (1.1–2.9) and 3.6 (3.4–4.0) for DAS28-CRP versus DAS28-ESR, DAS28-CRP versus SDAI and DAS28-ESR versus SDAI, respectively.ConclusionsDAS28-CRP underestimates disease activity when using cut-off points validated for DAS28-ESR; therefore, DAS28-ESR cut-off values should not be applied to DAS28-CRP. Although DAS28-CRP and DAS28-ESR cut-offs for LDA ≤3.2 correspond to SDAI LDA, neither corresponds well to SDAI remission.

scholarly journals Performance of composite measures used in a trial of etanercept and methotrexate as monotherapy or in combination in psoriatic arthritis

Rheumatology ◽  
2020 ◽  
Author(s):  
Laura C Coates ◽  
Joseph F Merola ◽  
Philip J Mease ◽  
Alexis Ogdie ◽  
Dafna D Gladman ◽  
...  
Keyword(s):  
Psoriatic Arthritis ◽  
Disease Activity ◽  
Disease Activity Score ◽  
Activity Index ◽  
Controlled Trial ◽  
Disease Activity Index ◽  
Activity Score ◽  
Composite Measures ◽  
End Point ◽  
Multiple Domains

Abstract Objectives To examine which composite measures are most sensitive to change when measuring psoriatic arthritis (PsA) disease activity, analyses compared the responsiveness of composite measures used in a 48-week randomized, controlled trial of MTX and etanercept in patients with PsA. Methods The trial randomised 851 patients to receive weekly: MTX (20 mg/week), etanercept (50 mg/week) or MTX plus etanercept. Dichotomous composite measures examined included ACR 20/50/70 responses, minimal disease activity (MDA) and very low disease activity (VLDA). Continuous composite measures examined included Disease Activity Score (28 joints) using CRP (DAS28-CRP), Clinical Disease Activity Index (CDAI), Simplified Disease Activity Index (SDAI), Disease Activity for Psoriatic Arthritis (DAPSA) and Psoriatic Arthritis Disease Activity Score (PASDAS). Results At week 24, etanercept-treated groups were significantly more effective than MTX monotherapy to achieve ACR 20 (primary end point) and MDA (key secondary end point). When examining score changes from baseline at week 24 across the five continuous composite measures, PASDAS demonstrated relatively greater changes in the etanercept-treated groups compared with MTX monotherapy and had the largest effect size and standardized response. Joint count changes drove overall score changes at week 24 from baseline in all the continuous composite measures except for PASDAS, which was driven by the Physician and Patient Global Assessments. Conclusion PASDAS was the most sensitive continuous composite measure examined with results that mirrored the protocol-defined primary and key secondary outcomes. Composite measures with multiple domains, such as PASDAS, may better quantify change in PsA disease burden. Trail registration https://ClinicalTrials.gov, number NCT02376790.

Need for Improvement in Current Treatment of Psoriatic Arthritis: Study of an Outpatient Clinic Population

2017 ◽  
Vol 44 (4) ◽  
pp. 431-436 ◽  
Author(s):  
Brigitte Michelsen ◽  
Andreas P. Diamantopoulos ◽  
Hege Kilander Høiberg ◽  
Dag Magnar Soldal ◽  
Arthur Kavanaugh ◽  
...  
Keyword(s):  
Psoriatic Arthritis ◽  
Disease Activity ◽  
Disease Activity Score ◽  
Activity Index ◽  
Real Life ◽  
Disease Activity Index ◽  
Activity Score ◽  
Psoriatic Skin ◽  
Biologic Treatment ◽  
Remission Criteria

Objective.To explore the burden of skin, joint, and entheses manifestations in a representative psoriatic arthritis (PsA) outpatient cohort in the biologic treatment era.Methods.This was a cross-sectional study of 141 PsA outpatients fulfilling the ClASsification for Psoriatic ARthritis (CASPAR) criteria and examined between January 2013 and May 2014. Selected disease activity measures were explored including Disease Activity index for PSoriatic Arthritis (DAPSA), Composite Psoriatic Disease Activity Index (CPDAI), Psoriatic Arthritis Disease Activity Score (PASDAS), Disease Activity Score for 28 joints (DAS28), Simplified Disease Activity Index (SDAI), and Psoriasis Area Severity Index (PASI). Dermatology Life Quality Index (DLQI), minimal disease activity (MDA), and remission criteria were assessed.Results.Median (range) DAPSA was 14.5 (0.1–76.4), CPDAI 5 (1–11), PASDAS 3.1 (2.1–4.2), DAS28-erythrocyte sedimentation rate (ESR) 3.2 (0.6–6.4), SDAI 8.6 (0.1–39.5), PASI 1.2 (0.0–19.7), and DLQI 2.0 (0–17). The MDA criteria were fulfilled by 22.9% of the patients. DAPSA ≤ 4, CPDAI ≤ 2, PASDAS < 2.4, DAS28-ESR < 2.4, SDAI < 3.3, and Boolean’s remission criteria were fulfilled by 12.1, 9.3, 7.8, 26.2, 21.3, and 5.7% of patients, respectively. The number of satisfied patients was similar regardless of whether the group was treated with tumor necrosis factor inhibitors.Conclusion.Our real-life data indicate that there is still a need for improvement in today’s treatment of PsA. Musculoskeletal inflammatory involvement was more prominent than psoriatic skin involvement. Only a few patients fulfilled the DAPSA, PASDAS, and CPDAI remission criteria, and about a quarter fulfilled the MDA criteria. Considerably fewer patients fulfilled PsA-specific remission criteria versus non-PsA specific remission criteria. Still, patient satisfaction was good and PASI and DLQI were low.

scholarly journals An observational study on Assessment of disease activity in Rheumatoid Arthritis patients using Patient based Disease Activity Score 2 (PDAS 2)

2021 ◽  
Author(s):  
Harpreet Singh ◽  
Somdatta Giri ◽  
Hemant Kumar ◽  
Pratibha Yonzone ◽  
Mahima Khatkar
Keyword(s):  
Rheumatoid Arthritis ◽  
Disease Activity ◽  
Disease Activity Score ◽  
Activity Index ◽  
Statistical Significance ◽  
Disease Activity Index ◽  
Activity Score ◽  
P Value ◽  
Internal Reliability ◽  
Das 28

Abstract Objective To assess the utility of Patient Based Disease Activity Score 2 (PDAS 2) in assessing the disease activity in Rheumatoid arthritis (RA). Methods A prospective cohort study was conducted on 80 patients of RA. The demographic and clinical characteristics of the patients were recorded. They were assessed for disease activity using “Disease Activity Score 28” (DAS 28), “Clinical Disease Activity Index” (CDAI) and PDAS 2 score at baseline (M0), at 2 months (M2) and at 4 months(M4) while they were on treatment. Data was analyzed for correlation of PDAS-2 with other scores and internal reliability. P < 0.05 was considered for statistical significance. Results The mean age was 40.13\(\pm\) 11.74 years with 70 females and 10 males. There was significant reduction in DAS28, CDAI and PDAS 2 score over 4 month follow up (all scores’ p values < 0.001). Internal reliability (as assessed by Cronbach’s Alpha) of PDAS 2 was 0.578. PDAS 2 showed significant correlation with DAS28 at M0, M2 and M4 (r = 0.792, 0.757 and 0.669 respectively, p value < 0.001) and CDAI (r = 0.861, 0.832 and 0.695 respectively, p value < 0.001). Overall there was a significant agreement between DAS 28 and PDAS 2 (K = 0.788,p < 0.001) and between CDAI and PDAS 2 (K = 0.766,p < 0.001). Conclusion PDAS-2 score can be routinely used in the clinical practice owing to its correlation with DAS-28/CDAI and because of the advantage that it assessed the patients’ daily living activities.

scholarly journals Is treat-to-target really working in rheumatoid arthritis? a longitudinal analysis of a cohort of patients treated in daily practice (RA BIODAM)

2020 ◽  
Vol 79 (4) ◽  
pp. 453-459 ◽  
Author(s):  
Sofia Ramiro ◽  
Robert BM Landewé ◽  
Désirée van der Heijde ◽  
Alexandre Sepriano ◽  
Oliver FitzGerald ◽  
...  
Keyword(s):  
Rheumatoid Arthritis ◽  
Clinical Practice ◽  
Disease Activity ◽  
Disease Activity Score ◽  
Activity Index ◽  
Disease Activity Index ◽  
Daily Clinical Practice ◽  
Joint Disease ◽  
Activity Score ◽  
Treat To Target

ObjectivesTo investigate whether following a treat-to-target (T2T)-strategy in daily clinical practice leads to more patients with rheumatoid arthritis (RA) meeting the remission target.MethodsRA patients from 10 countries starting/changing conventional synthetic or biological disease-modifying anti-rheumatic drugs were assessed for disease activity every 3 months for 2 years (RA BIODAM (BIOmarkers of joint DAMage) cohort). Per visit was decided whether a patient was treated according to a T2T-strategy with 44-joint disease activity score (DAS44) remission (DAS44 <1.6) as the target. Sustained T2T was defined as T2T followed in ≥2 consecutive visits. The main outcome was the achievement of DAS44 remission at the subsequent 3-month visit. Other outcomes were remission according to 28-joint disease activity score-erythrocyte sedimentation rate (DAS28-ESR), Clinical Disease Activity Index (CDAI), Simplified Disease Activity Index (SDAI) and American College of Rheumatology/European League Against Rheumatism (ACR/EULAR) Boolean definitions. The association between T2T and remission was tested in generalised estimating equations models.ResultsIn total 4356 visits of 571 patients (mean (SD) age: 56 (13) years, 78% female) were included. Appropriate application of T2T was found in 59% of the visits. T2T (vs no T2T) did not yield a higher likelihood of DAS44 remission 3 months later (OR (95% CI): 1.03 (0.92 to 1.16)), but sustained T2T resulted in an increased likelihood of achieving DAS44 remission (OR: 1.19 (1.03 to 1.39)). Similar results were seen with DAS28-ESR remission. For more stringent definitions (CDAI, SDAI and ACR/EULAR Boolean remission), T2T was consistently positively associated with remission (OR range: 1.16 to 1.29), and sustained T2T had a more pronounced effect on remission (OR range: 1.49 to 1.52).ConclusionIn daily clinical practice, the correct application of a T2T-strategy (especially sustained T2T) in patients with RA leads to higher rates of remission.

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