scholarly journals Disease activity improvements with optimal discriminatory ability between treatment arms: applicability in early and established rheumatoid arthritis clinical trials

2019 ◽  
Vol 21 (1) ◽  
Author(s):  
Josef Smolen ◽  
Roy Fleischmann ◽  
Daniel Aletaha ◽  
Yihan Li ◽  
Yijie Zhou ◽  
...  
Keyword(s):  
Disease Activity ◽  
Activity Index ◽  
Disease Activity Index ◽  
Controlled Trials ◽  
Discriminatory Ability ◽  
Link Type ◽  
Early Ra ◽  
Percent Improvement ◽  
Activity Measures ◽  
Disease Activity Measures

Abstract Background The ACR20 has been validated as the best discriminator of efficacy in placebo-controlled trials, but not in head-to-head trials comparing effective therapies in patients with rheumatoid arthritis (RA). We assessed the most discriminatory ACR response and most discriminatory percent improvement in disease activity measures for Simplified Disease Activity index (SDAI), Clinical Disease Activity index (CDAI), and 28-joint Disease Activity Score based on C-reactive protein (DAS28(CRP)) using different patient populations and trial designs. Methods Data from two placebo-controlled studies in established RA and two head-to-head studies in early RA were analyzed. The numeric ACR response for each treatment and P value for the difference between treatments were calculated at multiple time points to determine the ACR response associated with the lowest P value. Similarly, values for percent improvement from baseline in SDAI, CDAI, and DAS28(CRP) with the most discrimination between treatments were examined. Results In the head-to-head early RA trials, the minimum P value and greatest treatment difference between the active comparator arms at 6 months was achieved at higher ACR rates and greater percent improvements in other disease activity measures. In established RA, lower responses (minimum P value and maximum treatment difference) and smaller improvements in disease activity scores had better discriminatory ability at 6 months. Conclusions The most discriminatory ACR response rate and percent improvement in disease activity measures were higher in head-to-head active comparator trials in early RA versus placebo-controlled trials in established RA. This difference should be considered in future clinical trial designs. Trial registration NCT00195663, NCT00420927, NCT00195702.

scholarly journals Serum Levels of Beta-2 Microglobulin in Rheumatoid Arthritis Patients and its Relationship with Disease Activity: Can it be used as a Disease Activity Marker?

2020 ◽  
Author(s):  
Ayşe Bahar Keleşoğlu Dinçer ◽  
Murat Torgutalp ◽  
Müçteba Enes Yayla ◽  
Emine Gözde Aydemir Gülöksüz ◽  
Serdar Sezer ◽  
...  
Keyword(s):  
Disease Activity ◽  
Disease Activity Score ◽  
Activity Index ◽  
Disease Activity Index ◽  
Serum Levels ◽  
Joint Disease ◽  
Healthy Controls ◽  
Activity Measures ◽  
Beta 2 Microglobulin ◽  
Disease Activity Measures

Abstract Background Beta-2 microglobulin (β2M) is mainly released from activated lymphocytes. Increased serum β2M levels have been shown in autoimmune diseases. The aim of this study was to analyse the serum levels of β2M in rheumatoid arthritis (RA) patients and to evaluate its relationship with disease activity measures. Material and Methods This cross-sectional study included 137 RA patients, 102 ankylosing spondylitis patients (AS) and 50 healthy controls (HC). To assess the disease activity of RA patients, the 28-joint Disease Activity Score-Erythrocyte Sedimentation Rate (DAS28-ESR), the 28-joint Disease Activity Score-C-Reactive Protein (DAS28-CRP), the Simplified Disease Activity Index (SDAI) and the Clinical Disease Activity Index (CDAI) were used. A p value of <0.05 was considered statistically significant. Results Serum β2M levels were significantly higher in RA patients (2.95±1.19 mg/L) compared with HC (2.21±0.54 mg/L) and AS patients (2.200.58 mg/L) (p<0.001). There was a statistically significant correlation between β2M levels and DAS28-ESR (rs=0.359, p<0.001), DAS28-CRP (rs=0.293, p=0.001), SDAI (rs=0.332, p<0.001) and CDAI (rs=0.291, p=0.001). Serum β2M levels were higher in the RA group with DAS28-ESR ≥3.2 (3.30±1.42 mg/L) than in the DAS28-ESR <3.2 group (2.67±0.87 mg/L) (p=0.002). Conclusion Our study revealed that serum β2M levels were higher in RA patients than in healthy controls, and, in contrast to other studies, we found positive correlations between β2M levels and RA disease activity measures.

Drug Levels and Antibodies Against TNF-blockers in Spondyloarthritis and Rheumatoid Arthritis are Associated with the Activity but they do Not Predict it

2019 ◽  
Vol 15 (4) ◽  
pp. 329-335 ◽  
Author(s):  
Erika Marcela Padilla-Martínez ◽  
Consuelo Romero-Sanchez ◽  
Juan Manuel Bello-Gualtero ◽  
Ana Maria Mesa-Betancourt ◽  
Wilson Bautista-Molano ◽  
...  
Keyword(s):  
Rheumatoid Arthritis ◽  
Disease Activity ◽  
Activity Index ◽  
Disease Activity Index ◽  
Classification Criteria ◽  
Drug Levels ◽  
Tnf Blockers ◽  
Asas Classification Criteria ◽  
Activity Measures ◽  
Disease Activity Measures

Background: Many patients may have resistance to TNF-blockers. These drugs may induce neutralizing antibodies. The determination of the drug levels of TNF-blockers and Anti-Drug Antibodies (ADAs) against TNF-blockers may help to make clinical decisions. Objectives: The objective of this study was to associate and predict the drug levels of TNFblockers and ADAs in relation to disease activity in patients with Spondyloarthritis (SpA) and Rheumatoid Arthritis (RA). Methods: Cross-sectional study including patients fulfilling ASAS classification criteria for SpA and 2010 ACR-EULAR classification criteria for RA. These patients were treated with Adalimumab (ADA), Infliximab (IFX), and Etanercept (ETN). A bivariate analysis and the chi-square test were performed to evaluate the association of ADAs and drug levels with activity measures for SpA and RA. Five regression models analyzing drug levels, ADAs and disease activity measures using a multiple linear regression were performed in order to evaluate the prediction of ADAs and drug levels in relation to disease activity. Results: In SpA, IFX levels were associated with BASDAI (Bath Ankylosing Spondylitis Disease Activity Index) (p=0.034). In RA, total drug levels were associated with DAS28-ESR (28 joint Disease activity Score-erythrocyte sedimentation rate), (p=0.008), DAS28-CRP (p=0.042), CDAI (Clinical Disease Activity Index) (p=0.047) and SDAI (Simple Disease activity index), (p=0.017). ADA levels had association with CDAI (p=0.002) and SDAI (p=0.002). IFX levels were associated with a DAS28-ESR (p=0.044), DAS28-CRP (p=0.022) and SDAI (p=0.022). ADAs were associated in SpA with BASDAI (p=0.027). Drug levels and ADAs did not predict disease activity in patients with SpA or RA. Conclusions: ADAs and drug levels of anti-TNF are associated with disease activity measures in patients with SpA and RA. However, they cannot predict clinical activity in these conditions.

scholarly journals Is CDAI comparable to DAS 28 and SDAI regarding inter-observer agreement and correlation to MHAQ in Egyptian RA patients?

Reumatismo ◽  
2020 ◽  
Vol 71 (4) ◽  
pp. 203-208
Author(s):  
K. El-Hadidi ◽  
S.M. Gamal ◽  
S. Saad ◽  
N.Y. Elsaid
Keyword(s):  
Disease Activity ◽  
Activity Index ◽  
Disease Activity Index ◽  
Weighted Kappa ◽  
Observer Agreement ◽  
Strong Positive Correlation ◽  
Positive Correlation ◽  
Activity Measures ◽  
Disease Activity Measures ◽  
Activity Indices

Choosing between the different disease activity indices used for rheumatoid arthritis RA evaluation in clinical practice and research is often difficult. The aim of the current study was to compare clinical disease activity index (CDAI) to simplified disease activity index (SDAI), and disease activity score 28 (DAS28) regarding inter-observer reliability and correlation to the modified health assessment questionnaire (MHAQ) in a cohort of Egyptian RA patients. This study included one hundred RA patients. Every patient had an independent clinical evaluation made by two rheumatologists (professor and candidate) to evaluate disease activity using DAS28 with its 4 types, CDAI and SDAI. We used Cohen’s weighted kappa coefficient to measure the inter-observer agreement between the professor and candidate in different disease activity measures. Correlation between MHAQ and disease activity measures was made with Spearman’s rho test. Inter-observer agreement in CDAI and DAS28 values was almost perfect. A strong positive correlation was found between professor and candidate regarding the tested activity indices (p<0.001), and a positive correlation was found between MHAQ and all Disease Activity Scores made by both professor and candidate (p<0.001). CDAI proved to be comparable to other disease activity scores regarding inter-observer agreement and relation to MHAQ.

scholarly journals Effect of Glucocorticoids on the Clinical and Radiographic Efficacy of Tofacitinib in Patients with Rheumatoid Arthritis: A Posthoc Analysis of Data from 6 Phase III Studies

2017 ◽  
Vol 45 (2) ◽  
pp. 177-187 ◽  
Author(s):  
Christina Charles-Schoeman ◽  
Désirée van der Heijde ◽  
Gerd R. Burmester ◽  
Peter Nash ◽  
Cristiano A.F. Zerbini ◽  
...  
Keyword(s):  
Rheumatoid Arthritis ◽  
Disease Activity ◽  
Radiographic Progression ◽  
Activity Index ◽  
Disease Activity Index ◽  
Response Rates ◽  
Phase Iii ◽  
Inadequate Response ◽  
Link Type ◽  
Phase Iii Studies

Objective.Tofacitinib has been investigated for the treatment of rheumatoid arthritis (RA) in phase III studies in which concomitant glucocorticoids (GC) were allowed. We analyzed the effect of GC use on efficacy outcomes in patients with RA receiving tofacitinib and/or methotrexate (MTX) or conventional synthetic disease-modifying antirheumatic drugs (csDMARD) in these studies.Methods.Our posthoc analysis included data from 6 phase III studies (NCT01039688; NCT00814307; NCT00847613; NCT00853385; NCT00856544; NCT00960440). MTX-naive patients or patients with inadequate response to csDMARD or biological DMARD received tofacitinib 5 or 10 mg twice daily alone or with csDMARD, with or without concomitant GC. Patients receiving GC (≤ 10 mg/day prednisone or equivalent) before enrollment maintained a stable dose throughout. Endpoints included the American College of Rheumatology (ACR) 20/50/70 response rates, rates of Clinical Disease Activity Index (CDAI)-defined low disease activity (LDA; CDAI ≤ 10) and remission (CDAI ≤ 2.8), and changes from baseline in CDAI, 28-joint count Disease Activity Score (DAS28-4)–erythrocyte sedimentation rate (ESR), Health Assessment Questionnaire–Disability Index (HAQ-DI), pain visual analog scale (VAS), and modified total Sharp score.Results.Of 3200 tofacitinib-treated patients, 1258 (39.3%) received tofacitinib monotherapy and 1942 (60.7%) received tofacitinib plus csDMARD; 1767 (55.2%) received concomitant GC. ACR20/50/70 response rates, rates of CDAI LDA and remission, and improvements in CDAI, DAS28-4-ESR, HAQ-DI, and pain VAS with tofacitinib were generally similar with or without GC in monotherapy and combination therapy studies. GC use did not appear to affect radiographic progression in tofacitinib-treated MTX-naive patients. MTX plus GC appeared to inhibit radiographic progression to a numerically greater degree than MTX alone.Conclusion.Concomitant use of GC with tofacitinib did not appear to affect clinical or radiographic efficacy. MTX plus GC showed a trend to inhibit radiographic progression to a greater degree than MTX alone.

Disease Activity Indices for Pouchitis: A Systematic Review

2021 ◽  
Author(s):  
Rocio Sedano ◽  
Tran M Nguyen ◽  
Ahmed Almradi ◽  
Florian Rieder ◽  
Claire E Parker ◽  
...  
Keyword(s):  
Disease Activity ◽  
Randomized Controlled Trials ◽  
Outcome Measures ◽  
Activity Index ◽  
Disease Activity Index ◽  
Controlled Trials ◽  
Operating Properties ◽  
Randomized Controlled ◽  
Pouchitis Disease Activity Index ◽  
Activity Indices

Abstract Background Several indices exist to measure pouchitis disease activity; however, none are fully validated. As an initial step toward creating a validated instrument, we identified pouchitis disease activity indices, examined their operating properties, and assessed their value as outcome measures in clinical trials. Methods Electronic databases were searched to identify randomized controlled trials including indices that evaluated clinical, endoscopic, or histologic pouchitis disease activity. A second search identified studies that assessed the operating properties of pouchitis indices. Results Eighteen randomized controlled trials utilizing 4 composite pouchitis disease activity indices were identified. The Pouchitis Disease Activity Index (PDAI) was most commonly used (12 of 18; 66.7%) to define both trial eligibility (8 of 12; 66.7%), and outcome measures (12 of 12; 100%). In a separate search, 21 studies evaluated the operating properties of 3 pouchitis indices; 90.5% (19 of 21) evaluated validity, of which 42.1% (8 of 19) evaluated the construct validity of the PDAI. Criterion validity (73.7%; 14 of 19) was evaluated through correlation of the PDAI with fecal calprotectin (FCP; r = 0.188 to 0.71), fecal lactoferrin (r = 0.570 to 0.582), and C-reactive protein (CRP; r = 0.584). Two studies assessed correlation of the modified PDAI (mPDAI) with FCP (r = 0.476 and r = 0.565, respectively). Fair to moderate inter-rater reliability of the PDAI (k = 0.440) and mPDAI (k = 0.389) was reported in a single study. Responsiveness of the PDAI pre-antibiotic and postantibiotic treatment was partially evaluated in a single study of 12 patients. Conclusions Development and validation of a specific pouchitis disease activity index is needed given that existing instruments are not valid, reliable, or responsive.

scholarly journals Pooled analysis of TNF inhibitor biosimilar studies comparing radiographic progression by disease activity states in rheumatoid arthritis

RMD Open ◽  
2020 ◽  
Vol 6 (1) ◽  
pp. e001096 ◽  
Author(s):  
Josef S Smolen ◽  
Jung-Yoon Choe ◽  
Michael E Weinblatt ◽  
Paul Emery ◽  
Edward Keystone ◽  
...  
Keyword(s):  
Rheumatoid Arthritis ◽  
Disease Activity ◽  
Radiographic Progression ◽  
Activity Index ◽  
Logistic Models ◽  
Disease Activity Index ◽  
Pooled Analysis ◽  
Phase Iii ◽  
Tnf Inhibitor ◽  
Link Type

ObjectiveTo evaluate the relationship between disease activity and radiographic progression in rheumatoid arthritis, three phase III studies of SB4, SB2 and SB5 (biosimilars of etanercept, infliximab and adalimumab) were pooled to assess radiographic progression by disease activity status.MethodsPatients from each study with radiographic data were pooled and grouped based on disease activity state (remission, low disease activity (LDA), moderate disease activity (MDA) and high disease activity (HDA)), determined by disease activity score based on 28-joint count (DAS28) per erythrocyte sedimentation rate, Simplified Disease Activity Index (SDAI) and Clinical Disease Activity Index (CDAI) at different time points. Mean change in modified Total Sharp Score (mTSS) and the proportion of radiographic non-progressors of higher disease activity groups (LDA, MDA and HDA) in reference to remission were summarised descriptively, with comparison of ORs using logistic models.Results1265 patients were included. In all treatments combined, the 1 year mean change in mTSS was 0.03, 0.4, 0.3 and 1.3 and proportion of radiographic non-progressors was 79.8%, 78.1%, 74.1% and 58.4% in the week 24/30 DAS28-determined remission, LDA, MDA and HDA groups, respectively. ORs (95% CIs) of the proportion of non-progressors were lowest in the HDA group in reference to remission (0.35 (0.23 to 0.54)), followed by MDA (0.72 (0.50 to 1.05)) and LDA (0.90 (0.55 to 1.48)) groups. Similar trends were observed when disease activity was assessed using SDAI or CDAI.ConclusionA pooled analysis of radiographic assessment data from three biosimilar studies showed that radiographic progression is small overall but increases with worse disease activity.Trial registration numbersNCT01895309, NCT01936181 and NCT02167139

Implication of baseline levels and early changes of C-reactive protein for subsequent clinical outcomes of patients with rheumatoid arthritis treated with tocilizumab

2020 ◽  
Vol 79 (7) ◽  
pp. 874-882
Author(s):  
Inbal Haya Shafran ◽  
Farideh Alasti ◽  
Josef S Smolen ◽  
Daniel Aletaha
Keyword(s):  
Rheumatoid Arthritis ◽  
Disease Activity ◽  
Inflammatory Responses ◽  
Activity Index ◽  
Disease Activity Index ◽  
Positive Association ◽  
C Reactive Protein ◽  
Therapeutic Success ◽  
Reactive Protein ◽  
Early Ra

BackgroundRheumatoid arthritis (RA) is characterised by clinical joint swelling and elevation of acute phase reactant levels, typically measured by the C-reactive protein (CRP). Clinical and inflammatory responses are usually concordant, except for inhibition of IL-6, which often disproportionally reduces the CRP due to direct inhibition of its hepatic production. We investigated whether pre-treatment CRP is a useful marker that can guide a preferential treatment choice towards IL-6 inhibition.MethodsData of 1126 treatment courses with tocilizumab (TCZ; early RA), 250 courses of rituximab (RTX; established RA) and 249 courses of methotrexate (MTX; established RA) were analysed. We compared clinical disease activity index (CDAI) values and change along 24 weeks’ follow-up to CRP values at baseline or its early change. We validated the results using data from a separate TCZ trial in early RA.ResultsCRP levels in the TCZ group on average dropped by 74% within 4 weeks. Patients who attained CDAI remission at 24 weeks on TCZ had the highest baseline CRP levels while patients in high disease activity had the lowest; this association was reverse in the RTX and MTX groups. TCZ patients who achieved remission at 24 weeks showed the largest reductions of CRP levels by week 4 compared with those reaching higher disease activity states. Early CRP non-response was indicative of a risk of not achieving clinical treatment goals (p=0.038).ConclusionBaseline CRP appears to have a positive association with reaching the therapeutic target on TCZ treatment, but is a negative predictor for RTX and MTX. Patients on TCZ without an early CRP response have a lower chance of achieving remission. CRP and its early course may inform, to some extent, the estimation of potential therapeutic success in patients with RA.

Disease activity states of the DAPSA, a psoriatic arthritis specific instrument, are valid against functional status and structural progression

2016 ◽  
Vol 76 (2) ◽  
pp. 418-421 ◽  
Author(s):  
D Aletaha ◽  
F Alasti ◽  
JS Smolen
Keyword(s):  
Psoriatic Arthritis ◽  
Disease Activity ◽  
Activity Index ◽  
Short Form ◽  
Joint Damage ◽  
Disease Activity Index ◽  
Tnf Inhibitors ◽  
Link Type ◽  
Structural Progression ◽  
Functional Scores

BackgroundRecently, disease activity states were developed for the Disease Activity index for PSoriatic Arthritis (DAPSA). Here, we assess if different DAPSA disease activity states are associated with different degrees of functional impairment and different extents of joint damage progression in patients with psoriatic arthritis (PsA).MethodsWe used data from two pivotal trials of tumour necrosis factor (TNF) inhibitors in PsA (IMPACT II and GO-REVEAL) and identified patients in DAPSA remission (REM, ≤4), and low, moderate or high disease activity (LDA, ≤14; MDA, ≤28; HDA, >28) at 6 months. Across these groups we compared the functional scores (Health Assessment Questionnaire Disability Index, HAQ and physical component scale of the Short Form-36, PCS), and 1-year structural progression (PsA-modified Sharp/van der Heijde Score).ResultsWe identified 310 from GO-REVEAL and 130 from IMPACT II, with a mean (SD) baseline DAPSA of 48.8 (26.4) and 44.6 (17.9), respectively. HAQ scores increased across patients groups in the four DAPSA disease activity states, while PCS decreased (p<0.001 for both). The mean progression in the combined cohort was −0.47 for REM, −0.28 for LDA, −0.14 for MDA and 0.51 for HDA (p<0.001). This association was also significant in the individual trial cohorts, and in the subgroups of patients treated with TNF inhibitors or placebo. Higher DAPSA scores were significantly and independently associated with probability of structural progression in multiple analyses.ConclusionsDisease activity states of the PsA specific DAPSA score are highly valid for future use as endpoints in clinical trials or as targets in clinical practice.Trial registration numbersIMPACT 2: NCT02152254; GO-REVEAL: NCT00265096.

scholarly journals Long-term prognosis and quality of life in patients with early rheumatoid arthritis treated according to the 2015 ACR guideline (LELAND): protocol for a multicentre prospective observational study in Southern China

BMJ Open ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. e023798
Author(s):  
Jinjun Zhao ◽  
Taihe Zhan ◽  
Junqing Zhu ◽  
Meida Fan ◽  
Qin Huang ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Rheumatoid Arthritis ◽  
Disease Activity ◽  
Activity Index ◽  
Disease Activity Index ◽  
Treat To Target ◽  
Early Ra ◽  
Long Term Prognosis

IntroductionRheumatoid arthritis (RA) is a chronic systemic disease and one of the most disabling diseases for patients. The American College of Rheumatology (ACR) issued a new guideline in 2015 for the treatment of RA based on the treat-to-target strategy to achieve better outcomes. This study will focus on the real-world rates of remission and low disease activity of patients with early RA in China, who will be treated according to the 2015 ACR guideline. Additionally, factors influencing treat-to-target outcomes will be analysed, and long-term prognosis and quality of life will be assessed.Method and analysisTwo-hundred patients with early RA will be enrolled, treated and followed up once every 3 months for 48 months. These patients should fulfil the 2010 RA classification criteria of the ACR/European League Against Rheumatism with a disease course of no more than 6 months and should also fulfil other eligibility criteria. The patients will be treated following the 2015 ACR guideline. Their disease activity will be assessed, and they will be instructed to complete several questionnaires once every 3 months. The primary outcomes are the Disease Activity Score on 28 joints and Health Assessment Questionnaire Disability Index. The secondary outcome variables are the Simplified Disease Activity Index, Clinical Disease Activity Index and Routine Assessment of Patient Index Data 3 results, imaging data and personal medical costs. The data will be analysed using appropriate statistical analyses.Ethics and disseminationThis research was approved by the Nanfang Hospital Ethics Committee (NFEC-2017–192). The results of the study will be published in international peer-reviewed journals.Trial registration numberNCT03508713; Pre-results.

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