Key clinical point: Concomitant methotrexate significantly reduced humoral response to the third SARS-CoV-2 mRNA vaccine in older (age ≥ 64.5 years) but not younger (age < 64.5 years) patients with rheumatoid arthritis (RA).

Major finding: Patients aged ≥ 64.5 years receiving methotrexate plus biologic or targeted synthetic disease-modifying antirheumatic drugs (b/tsDMARD) vs methotrexate monotherapy or b/tsDMARD monotherapy had significantly lower serum levels of immunoglobulin G antibody for SARS-CoV-2 spike protein receptor binding domain (64.8 vs 1743.8 or 1106.0 binding antibody units/mL, respectively; Kruskal-Wallis Test, P < .001), whereas patients aged < 64.5 years showed no significant difference (Kruskal-Wallis Test, P = .334).

Study details: Findings are from a retrospective analysis including 136 patients with RA treated with conventional synthetic DMARD or b/ts DMARD with or without methotrexate who received the third dose of SARS-CoV-2 mRNA vaccines BNT162b2 (Pfizer/BioNTech) or mRNA-1273 (Moderna).

Disclosures: This study did not declare any specific source of funding. No conflict of interests was declared.

Source: Stahl D et al. Reduced humoral response to a third dose (booster) of SARS-CoV-2 mRNA vaccines by concomitant methotrexate therapy in elderly patients with rheumatoid arthritis. RMD Open. 2022;8(2):e002632 (Oct 10). Doi: 10.1136/rmdopen-2022-002632

Key clinical point: Concomitant methotrexate significantly reduced humoral response to the third SARS-CoV-2 mRNA vaccine in older (age ≥ 64.5 years) but not younger (age < 64.5 years) patients with rheumatoid arthritis (RA).

Major finding: Patients aged ≥ 64.5 years receiving methotrexate plus biologic or targeted synthetic disease-modifying antirheumatic drugs (b/tsDMARD) vs methotrexate monotherapy or b/tsDMARD monotherapy had significantly lower serum levels of immunoglobulin G antibody for SARS-CoV-2 spike protein receptor binding domain (64.8 vs 1743.8 or 1106.0 binding antibody units/mL, respectively; Kruskal-Wallis Test, P < .001), whereas patients aged < 64.5 years showed no significant difference (Kruskal-Wallis Test, P = .334).

Study details: Findings are from a retrospective analysis including 136 patients with RA treated with conventional synthetic DMARD or b/ts DMARD with or without methotrexate who received the third dose of SARS-CoV-2 mRNA vaccines BNT162b2 (Pfizer/BioNTech) or mRNA-1273 (Moderna).

Disclosures: This study did not declare any specific source of funding. No conflict of interests was declared.

Source: Stahl D et al. Reduced humoral response to a third dose (booster) of SARS-CoV-2 mRNA vaccines by concomitant methotrexate therapy in elderly patients with rheumatoid arthritis. RMD Open. 2022;8(2):e002632 (Oct 10). Doi: 10.1136/rmdopen-2022-002632

Key clinical point: Concomitant methotrexate significantly reduced humoral response to the third SARS-CoV-2 mRNA vaccine in older (age ≥ 64.5 years) but not younger (age < 64.5 years) patients with rheumatoid arthritis (RA).

Major finding: Patients aged ≥ 64.5 years receiving methotrexate plus biologic or targeted synthetic disease-modifying antirheumatic drugs (b/tsDMARD) vs methotrexate monotherapy or b/tsDMARD monotherapy had significantly lower serum levels of immunoglobulin G antibody for SARS-CoV-2 spike protein receptor binding domain (64.8 vs 1743.8 or 1106.0 binding antibody units/mL, respectively; Kruskal-Wallis Test, P < .001), whereas patients aged < 64.5 years showed no significant difference (Kruskal-Wallis Test, P = .334).

Study details: Findings are from a retrospective analysis including 136 patients with RA treated with conventional synthetic DMARD or b/ts DMARD with or without methotrexate who received the third dose of SARS-CoV-2 mRNA vaccines BNT162b2 (Pfizer/BioNTech) or mRNA-1273 (Moderna).

Disclosures: This study did not declare any specific source of funding. No conflict of interests was declared.

Source: Stahl D et al. Reduced humoral response to a third dose (booster) of SARS-CoV-2 mRNA vaccines by concomitant methotrexate therapy in elderly patients with rheumatoid arthritis. RMD Open. 2022;8(2):e002632 (Oct 10). Doi: 10.1136/rmdopen-2022-002632

Key clinical point: Patients with rheumatoid arthritis (RA) were at an increased risk of developing all types of thyroid dysfunctions, with the risk being the highest for hypothyroidism, followed by subclinical hypothyroidism, subclinical hyperthyroidism, and hyperthyroidism.

Major finding: Patients with RA vs non-RA control individuals were at a higher risk of developing thyroid dysfunctions such as hypothyroidism (pooled OR [pOR] 2.25; 95% CI 1.78-2.84), subclinical hypothyroidism (pOR 2.18; 95% CI 1.32-3.61), subclinical hyperthyroidism (pOR 2.13; 95% CI 1.25-3.63), and hyperthyroidism (OR 1.65; 95% CI 1.24-2.19).

Study details: Findings are from a systematic review and meta-analysis of 29 studies that evaluated thyroid dysfunction in patients with RA (n = 35,708) and non-RA control individuals (n = 149,421).

Disclosures: This study was supported by grants from the Science and Technology Bureau of Quanzhou and the Natural Science Foundation of Fujian Province. The authors declared no conflict of interests.

Source: Liu Y-j et al. Association between rheumatoid arthritis and thyroid dysfunction: A meta-analysis and systematic review. Front Endocrinol. 2022;13:1015516 (Oct 13). Doi: 10.3389/fendo.2022.1015516

Key clinical point: Patients with rheumatoid arthritis (RA) were at an increased risk of developing all types of thyroid dysfunctions, with the risk being the highest for hypothyroidism, followed by subclinical hypothyroidism, subclinical hyperthyroidism, and hyperthyroidism.

Major finding: Patients with RA vs non-RA control individuals were at a higher risk of developing thyroid dysfunctions such as hypothyroidism (pooled OR [pOR] 2.25; 95% CI 1.78-2.84), subclinical hypothyroidism (pOR 2.18; 95% CI 1.32-3.61), subclinical hyperthyroidism (pOR 2.13; 95% CI 1.25-3.63), and hyperthyroidism (OR 1.65; 95% CI 1.24-2.19).

Study details: Findings are from a systematic review and meta-analysis of 29 studies that evaluated thyroid dysfunction in patients with RA (n = 35,708) and non-RA control individuals (n = 149,421).

Disclosures: This study was supported by grants from the Science and Technology Bureau of Quanzhou and the Natural Science Foundation of Fujian Province. The authors declared no conflict of interests.

Source: Liu Y-j et al. Association between rheumatoid arthritis and thyroid dysfunction: A meta-analysis and systematic review. Front Endocrinol. 2022;13:1015516 (Oct 13). Doi: 10.3389/fendo.2022.1015516

Key clinical point: Patients with rheumatoid arthritis (RA) were at an increased risk of developing all types of thyroid dysfunctions, with the risk being the highest for hypothyroidism, followed by subclinical hypothyroidism, subclinical hyperthyroidism, and hyperthyroidism.

Major finding: Patients with RA vs non-RA control individuals were at a higher risk of developing thyroid dysfunctions such as hypothyroidism (pooled OR [pOR] 2.25; 95% CI 1.78-2.84), subclinical hypothyroidism (pOR 2.18; 95% CI 1.32-3.61), subclinical hyperthyroidism (pOR 2.13; 95% CI 1.25-3.63), and hyperthyroidism (OR 1.65; 95% CI 1.24-2.19).

Study details: Findings are from a systematic review and meta-analysis of 29 studies that evaluated thyroid dysfunction in patients with RA (n = 35,708) and non-RA control individuals (n = 149,421).

Disclosures: This study was supported by grants from the Science and Technology Bureau of Quanzhou and the Natural Science Foundation of Fujian Province. The authors declared no conflict of interests.

Source: Liu Y-j et al. Association between rheumatoid arthritis and thyroid dysfunction: A meta-analysis and systematic review. Front Endocrinol. 2022;13:1015516 (Oct 13). Doi: 10.3389/fendo.2022.1015516

Key clinical point: Red blood cell distribution width could serve as a useful biomarker and successfully differentiate between patients with rheumatoid arthritis (RA) and control individuals.

Major finding: Patients with RA vs. control individuals had significantly higher values for red blood cell distribution width (standardized mean difference, 0.96; P < .001); however, the mean platelet volume (P = .515) and platelet distribution width (P = .222) were not significantly different between the 2 groups.

Study details: This was a systematic review and meta-analysis of 23 studies, of which 11 studies reported data on red blood cell distribution width and included 1,221 patients with RA and 983 control individuals.

Disclosures: This study did not receive any funding. The authors declared no conflict of interests.

Source: Zinellu A and Mangoni AA et al. Platelet and red blood cell volume indices in patients with rheumatoid arthritis: A systematic review and meta-analysis. Diagnostics. 2022;12(11):2633 (Oct 30). Doi: 10.3390/diagnostics12112633.

Key clinical point: Red blood cell distribution width could serve as a useful biomarker and successfully differentiate between patients with rheumatoid arthritis (RA) and control individuals.

Major finding: Patients with RA vs. control individuals had significantly higher values for red blood cell distribution width (standardized mean difference, 0.96; P < .001); however, the mean platelet volume (P = .515) and platelet distribution width (P = .222) were not significantly different between the 2 groups.

Study details: This was a systematic review and meta-analysis of 23 studies, of which 11 studies reported data on red blood cell distribution width and included 1,221 patients with RA and 983 control individuals.

Disclosures: This study did not receive any funding. The authors declared no conflict of interests.

Source: Zinellu A and Mangoni AA et al. Platelet and red blood cell volume indices in patients with rheumatoid arthritis: A systematic review and meta-analysis. Diagnostics. 2022;12(11):2633 (Oct 30). Doi: 10.3390/diagnostics12112633.

Key clinical point: Red blood cell distribution width could serve as a useful biomarker and successfully differentiate between patients with rheumatoid arthritis (RA) and control individuals.

Major finding: Patients with RA vs. control individuals had significantly higher values for red blood cell distribution width (standardized mean difference, 0.96; P < .001); however, the mean platelet volume (P = .515) and platelet distribution width (P = .222) were not significantly different between the 2 groups.

Study details: This was a systematic review and meta-analysis of 23 studies, of which 11 studies reported data on red blood cell distribution width and included 1,221 patients with RA and 983 control individuals.

Disclosures: This study did not receive any funding. The authors declared no conflict of interests.

Source: Zinellu A and Mangoni AA et al. Platelet and red blood cell volume indices in patients with rheumatoid arthritis: A systematic review and meta-analysis. Diagnostics. 2022;12(11):2633 (Oct 30). Doi: 10.3390/diagnostics12112633.

Key clinical point: Age is an independent contributor to seronegative rheumatoid arthritis (RA), with the effect being prominent in females but not in males.

Major finding: Rates of rheumatoid factor (RF) and anticyclic citrullinated peptide (anti-CCP) positivity and RF/anti-CCP double positivity declined significantly with an increase in age at RA diagnosis (all P < .001). The age at disease onset was independently associated with RF (odds ratio [OR] 0.980; P < .001) and anti-CCP (OR 0.976; P < .001) positivity in patients with RA, with both the associations being significant in women (RF positivity: OR 0.979; P < .001; anti-CCP positivity: OR 0.970; P < .001) but not in men.

Study details: This was a cohort study including 1685 patients with RA (mean age at diagnosis, 51.9 years), of which 83.4% were women.

Disclosures: This study did not receive any funding. The authors declared no conflict of interests.

Source: Takanashi S et al. Impacts of ageing on rheumatoid factor and anti-cyclic citrullinated peptide antibody positivity in patients with rheumatoid arthritis. J Rheumatol. 2022 (Nov 1). Doi: 10.3899/jrheum.220526

Key clinical point: Age is an independent contributor to seronegative rheumatoid arthritis (RA), with the effect being prominent in females but not in males.

Major finding: Rates of rheumatoid factor (RF) and anticyclic citrullinated peptide (anti-CCP) positivity and RF/anti-CCP double positivity declined significantly with an increase in age at RA diagnosis (all P < .001). The age at disease onset was independently associated with RF (odds ratio [OR] 0.980; P < .001) and anti-CCP (OR 0.976; P < .001) positivity in patients with RA, with both the associations being significant in women (RF positivity: OR 0.979; P < .001; anti-CCP positivity: OR 0.970; P < .001) but not in men.

Study details: This was a cohort study including 1685 patients with RA (mean age at diagnosis, 51.9 years), of which 83.4% were women.

Disclosures: This study did not receive any funding. The authors declared no conflict of interests.

Source: Takanashi S et al. Impacts of ageing on rheumatoid factor and anti-cyclic citrullinated peptide antibody positivity in patients with rheumatoid arthritis. J Rheumatol. 2022 (Nov 1). Doi: 10.3899/jrheum.220526

Key clinical point: Age is an independent contributor to seronegative rheumatoid arthritis (RA), with the effect being prominent in females but not in males.

Major finding: Rates of rheumatoid factor (RF) and anticyclic citrullinated peptide (anti-CCP) positivity and RF/anti-CCP double positivity declined significantly with an increase in age at RA diagnosis (all P < .001). The age at disease onset was independently associated with RF (odds ratio [OR] 0.980; P < .001) and anti-CCP (OR 0.976; P < .001) positivity in patients with RA, with both the associations being significant in women (RF positivity: OR 0.979; P < .001; anti-CCP positivity: OR 0.970; P < .001) but not in men.

Study details: This was a cohort study including 1685 patients with RA (mean age at diagnosis, 51.9 years), of which 83.4% were women.

Disclosures: This study did not receive any funding. The authors declared no conflict of interests.

Source: Takanashi S et al. Impacts of ageing on rheumatoid factor and anti-cyclic citrullinated peptide antibody positivity in patients with rheumatoid arthritis. J Rheumatol. 2022 (Nov 1). Doi: 10.3899/jrheum.220526

Key clinical point: Patients with rheumatoid arthritis (RA) were at an increased risk for lung cancer compared with the general population, with seropositivity being a strong and independent risk factor above what can be explained by smoking.

Major finding: Patients with RA vs. general population were at increased risk for lung cancer (adjusted hazard ratio [aHR] 1.70; 95% CI 1.54-1.87), with the risk being even higher among ever smokers (aHR 1.82; 95% CI 1.06-3.17) or current smokers (aHR 2.73; 95% CI 1.21-6.16) and double seropositivity being a strong and independent risk factor (aHR 6.21; 95% CI 1.47-26.33).

Study details: This was a population-based matched cohort study including 44,101 patients with RA who were individually matched with 216,495 control individuals from the general population and prospectively followed for the occurrence of lung cancer.

Disclosures: This study was funded by the Swedish Research Council and other sources. K Chatzidionysiou declared receiving consulting fees from various sources. J Askling declared serving as principal investigator and having ties with various sources.

Source: Chatzidionysiou K et al. Risk of lung cancer in rheumatoid arthritis and in relation to autoantibody positivity and smoking. RMD Open. 2022;8(2):e002465 (Oct 21). Doi: 10.1136/rmdopen-2022-002465

Key clinical point: Patients with rheumatoid arthritis (RA) were at an increased risk for lung cancer compared with the general population, with seropositivity being a strong and independent risk factor above what can be explained by smoking.

Major finding: Patients with RA vs. general population were at increased risk for lung cancer (adjusted hazard ratio [aHR] 1.70; 95% CI 1.54-1.87), with the risk being even higher among ever smokers (aHR 1.82; 95% CI 1.06-3.17) or current smokers (aHR 2.73; 95% CI 1.21-6.16) and double seropositivity being a strong and independent risk factor (aHR 6.21; 95% CI 1.47-26.33).

Study details: This was a population-based matched cohort study including 44,101 patients with RA who were individually matched with 216,495 control individuals from the general population and prospectively followed for the occurrence of lung cancer.

Disclosures: This study was funded by the Swedish Research Council and other sources. K Chatzidionysiou declared receiving consulting fees from various sources. J Askling declared serving as principal investigator and having ties with various sources.

Source: Chatzidionysiou K et al. Risk of lung cancer in rheumatoid arthritis and in relation to autoantibody positivity and smoking. RMD Open. 2022;8(2):e002465 (Oct 21). Doi: 10.1136/rmdopen-2022-002465

Key clinical point: Patients with rheumatoid arthritis (RA) were at an increased risk for lung cancer compared with the general population, with seropositivity being a strong and independent risk factor above what can be explained by smoking.

Major finding: Patients with RA vs. general population were at increased risk for lung cancer (adjusted hazard ratio [aHR] 1.70; 95% CI 1.54-1.87), with the risk being even higher among ever smokers (aHR 1.82; 95% CI 1.06-3.17) or current smokers (aHR 2.73; 95% CI 1.21-6.16) and double seropositivity being a strong and independent risk factor (aHR 6.21; 95% CI 1.47-26.33).

Study details: This was a population-based matched cohort study including 44,101 patients with RA who were individually matched with 216,495 control individuals from the general population and prospectively followed for the occurrence of lung cancer.

Disclosures: This study was funded by the Swedish Research Council and other sources. K Chatzidionysiou declared receiving consulting fees from various sources. J Askling declared serving as principal investigator and having ties with various sources.

Source: Chatzidionysiou K et al. Risk of lung cancer in rheumatoid arthritis and in relation to autoantibody positivity and smoking. RMD Open. 2022;8(2):e002465 (Oct 21). Doi: 10.1136/rmdopen-2022-002465

Key clinical point: Tocilizumab was more effective than etanercept in inhibiting the radiographic progression of joint erosion in rheumatoid arthritis (RA), with joint damage progression being significantly associated with the baseline clinical disease activity index (CDAI) score.

Major finding: At 12 months, a significantly higher proportion of patients showed no radiographic progression of joint erosion with tocilizumab vs etanercept (change in total Sharp/van der Heijde score [erosion] ≤0%; 86.8% vs 63.2%; P = .032). The progression of radiographic joint erosion was significantly correlated with the baseline CDAI score (odds ratio 1.05; P = .037).

Study details: This was a retrospective cohort study including 187 patients with RA who received tocilizumab or etanercept for at least 12 months.

Disclosures: This study did not report the source of funding. The authors declared no conflict of interests.

Source: Hayashi S et al. Comparison of the inhibitory effect of tocilizumab and etanercept on the progression of joint erosion in rheumatoid arthritis treatment. Sci Rep. 2022;12(1):17524 (Oct 20). Doi: 10.1038/s41598-022-22152-w

Key clinical point: Tocilizumab was more effective than etanercept in inhibiting the radiographic progression of joint erosion in rheumatoid arthritis (RA), with joint damage progression being significantly associated with the baseline clinical disease activity index (CDAI) score.

Major finding: At 12 months, a significantly higher proportion of patients showed no radiographic progression of joint erosion with tocilizumab vs etanercept (change in total Sharp/van der Heijde score [erosion] ≤0%; 86.8% vs 63.2%; P = .032). The progression of radiographic joint erosion was significantly correlated with the baseline CDAI score (odds ratio 1.05; P = .037).

Study details: This was a retrospective cohort study including 187 patients with RA who received tocilizumab or etanercept for at least 12 months.

Disclosures: This study did not report the source of funding. The authors declared no conflict of interests.

Source: Hayashi S et al. Comparison of the inhibitory effect of tocilizumab and etanercept on the progression of joint erosion in rheumatoid arthritis treatment. Sci Rep. 2022;12(1):17524 (Oct 20). Doi: 10.1038/s41598-022-22152-w

Key clinical point: Tocilizumab was more effective than etanercept in inhibiting the radiographic progression of joint erosion in rheumatoid arthritis (RA), with joint damage progression being significantly associated with the baseline clinical disease activity index (CDAI) score.

Major finding: At 12 months, a significantly higher proportion of patients showed no radiographic progression of joint erosion with tocilizumab vs etanercept (change in total Sharp/van der Heijde score [erosion] ≤0%; 86.8% vs 63.2%; P = .032). The progression of radiographic joint erosion was significantly correlated with the baseline CDAI score (odds ratio 1.05; P = .037).

Study details: This was a retrospective cohort study including 187 patients with RA who received tocilizumab or etanercept for at least 12 months.

Disclosures: This study did not report the source of funding. The authors declared no conflict of interests.

Source: Hayashi S et al. Comparison of the inhibitory effect of tocilizumab and etanercept on the progression of joint erosion in rheumatoid arthritis treatment. Sci Rep. 2022;12(1):17524 (Oct 20). Doi: 10.1038/s41598-022-22152-w

Key clinical point: Significant proportion of patients with high-risk early rheumatoid arthritis (RA) achieved the treatment target with a combination of methotrexate and step-down prednisolone, whereas nonresponders benefited from treatment intensification albeit with more adverse events.

Major finding: Overall, 73% of patients at high risk achieved the treatment target at 13 weeks. A significant proportion of nonresponders who were at high risk achieved the treatment target with treatment intensification vs continuation (80% vs 44%; difference 36%; P = .04), but experienced more adverse events (P < .01).

Study details: This study included 190 patients with early RA from the COBRA treat-to-target trial, of which high-risk patients received prednisolone (30 mg/day tapered to 7.5 mg/day) and methotrexate (increased from 10 to 25 mg/week). At 13 weeks, nonresponders were randomly assigned to treatment continuation or intensification (methotrexate 25 mg/week; prednisolone 60 mg/day tapered to 7.5 mg/day; sulfasalazine 2 g/day; and hydroxychloroquine 400 mg/day).

Disclosures: This study was supported by an unrestricted grant from Pfizer. M Boers and WF Lems reported ties with various sources.

Source: Hartman L et al. Favorable effect of a ‘second hit’ after 13 weeks in early RA non-responders: The Amsterdam COBRA treat-to-target randomized trial. Rheumatology (Oxford). 2022 (Oct 7). Doi: 10.1093/rheumatology/keac582

Key clinical point: Significant proportion of patients with high-risk early rheumatoid arthritis (RA) achieved the treatment target with a combination of methotrexate and step-down prednisolone, whereas nonresponders benefited from treatment intensification albeit with more adverse events.

Major finding: Overall, 73% of patients at high risk achieved the treatment target at 13 weeks. A significant proportion of nonresponders who were at high risk achieved the treatment target with treatment intensification vs continuation (80% vs 44%; difference 36%; P = .04), but experienced more adverse events (P < .01).

Study details: This study included 190 patients with early RA from the COBRA treat-to-target trial, of which high-risk patients received prednisolone (30 mg/day tapered to 7.5 mg/day) and methotrexate (increased from 10 to 25 mg/week). At 13 weeks, nonresponders were randomly assigned to treatment continuation or intensification (methotrexate 25 mg/week; prednisolone 60 mg/day tapered to 7.5 mg/day; sulfasalazine 2 g/day; and hydroxychloroquine 400 mg/day).

Disclosures: This study was supported by an unrestricted grant from Pfizer. M Boers and WF Lems reported ties with various sources.

Source: Hartman L et al. Favorable effect of a ‘second hit’ after 13 weeks in early RA non-responders: The Amsterdam COBRA treat-to-target randomized trial. Rheumatology (Oxford). 2022 (Oct 7). Doi: 10.1093/rheumatology/keac582

Key clinical point: Significant proportion of patients with high-risk early rheumatoid arthritis (RA) achieved the treatment target with a combination of methotrexate and step-down prednisolone, whereas nonresponders benefited from treatment intensification albeit with more adverse events.

Major finding: Overall, 73% of patients at high risk achieved the treatment target at 13 weeks. A significant proportion of nonresponders who were at high risk achieved the treatment target with treatment intensification vs continuation (80% vs 44%; difference 36%; P = .04), but experienced more adverse events (P < .01).

Study details: This study included 190 patients with early RA from the COBRA treat-to-target trial, of which high-risk patients received prednisolone (30 mg/day tapered to 7.5 mg/day) and methotrexate (increased from 10 to 25 mg/week). At 13 weeks, nonresponders were randomly assigned to treatment continuation or intensification (methotrexate 25 mg/week; prednisolone 60 mg/day tapered to 7.5 mg/day; sulfasalazine 2 g/day; and hydroxychloroquine 400 mg/day).

Disclosures: This study was supported by an unrestricted grant from Pfizer. M Boers and WF Lems reported ties with various sources.

Source: Hartman L et al. Favorable effect of a ‘second hit’ after 13 weeks in early RA non-responders: The Amsterdam COBRA treat-to-target randomized trial. Rheumatology (Oxford). 2022 (Oct 7). Doi: 10.1093/rheumatology/keac582

Key clinical point: In patients with psoriatic arthritis (PsA), the percentages of some T_reg cell subgroups and the levels of T_reg-related cytokines, such as transforming growth factor-beta (TGFβ), were decreased.

Major finding: Compared with control individuals without PsA, patients with PsA had a similar proportion of T_reg cells (P = .071), with no significant difference in the proportion of OKT8⁺ T_reg cells (P = .679) and significantly decreased CD4⁺ T_reg cells (standardized mean difference [SMD] −1.501; P = .023). TGFβ levels were lower in patients with PsA vs healthy controls (SMD −2.199; P = .003).

Study details: Findings are from a meta-analysis of 12 studies including 525 patients with PsA and 414 control individuals.

Disclosures: This study was supported by the National Natural Science Foundation of China and other sources. The authors declared no conflict of interests.

Source: Su QY et al. Peripheral T_reg levels and transforming growth factor-β (TGFβ) in patients with psoriatic arthritis: A systematic review meta-analysis. Adv Ther. 2022 (Oct 26). Doi: 10.1007/s12325-022-02337-5

Key clinical point: In patients with psoriatic arthritis (PsA), the percentages of some T_reg cell subgroups and the levels of T_reg-related cytokines, such as transforming growth factor-beta (TGFβ), were decreased.

Major finding: Compared with control individuals without PsA, patients with PsA had a similar proportion of T_reg cells (P = .071), with no significant difference in the proportion of OKT8⁺ T_reg cells (P = .679) and significantly decreased CD4⁺ T_reg cells (standardized mean difference [SMD] −1.501; P = .023). TGFβ levels were lower in patients with PsA vs healthy controls (SMD −2.199; P = .003).

Study details: Findings are from a meta-analysis of 12 studies including 525 patients with PsA and 414 control individuals.

Disclosures: This study was supported by the National Natural Science Foundation of China and other sources. The authors declared no conflict of interests.

Source: Su QY et al. Peripheral T_reg levels and transforming growth factor-β (TGFβ) in patients with psoriatic arthritis: A systematic review meta-analysis. Adv Ther. 2022 (Oct 26). Doi: 10.1007/s12325-022-02337-5

Key clinical point: In patients with psoriatic arthritis (PsA), the percentages of some T_reg cell subgroups and the levels of T_reg-related cytokines, such as transforming growth factor-beta (TGFβ), were decreased.

Major finding: Compared with control individuals without PsA, patients with PsA had a similar proportion of T_reg cells (P = .071), with no significant difference in the proportion of OKT8⁺ T_reg cells (P = .679) and significantly decreased CD4⁺ T_reg cells (standardized mean difference [SMD] −1.501; P = .023). TGFβ levels were lower in patients with PsA vs healthy controls (SMD −2.199; P = .003).

Study details: Findings are from a meta-analysis of 12 studies including 525 patients with PsA and 414 control individuals.

Disclosures: This study was supported by the National Natural Science Foundation of China and other sources. The authors declared no conflict of interests.

Source: Su QY et al. Peripheral T_reg levels and transforming growth factor-β (TGFβ) in patients with psoriatic arthritis: A systematic review meta-analysis. Adv Ther. 2022 (Oct 26). Doi: 10.1007/s12325-022-02337-5

Key clinical point: Serum calprotectin (CLP) serves as an important inflammatory biomarker for diagnosing and monitoring disease activity in psoriatic arthritis (PsA).

Major finding: Participants with PsA vs control individuals without psoriasis or PsA had higher median CLP levels (3.816 vs 0.707 μg/mL; P < .001). The concentration of serum CLP decreased significantly along with the disease activity from 3.816 at baseline to 2.052, 1.681, and 1.655 μg/mL at 3, 6, and 12 months, respectively (all P < .001).

Study details: Findings are from a longitudinal study including 71 patients with PsA, 55 patients with psoriasis, and 50 control individuals.

Disclosures: This study was supported by the interdisciplinary clinical research project of Peking University First Hospital, China, and other sources. The authors declared no conflict of interests.

Source: Li B et al. Serum calprotectin as a promising inflammatory biomarker in psoriatic arthritis: A 1-year longitudinal study. Rheumatol Ther. 2022 (Oct 21). Doi: 10.1007/s40744-022-00501-5

Key clinical point: Serum calprotectin (CLP) serves as an important inflammatory biomarker for diagnosing and monitoring disease activity in psoriatic arthritis (PsA).

Major finding: Participants with PsA vs control individuals without psoriasis or PsA had higher median CLP levels (3.816 vs 0.707 μg/mL; P < .001). The concentration of serum CLP decreased significantly along with the disease activity from 3.816 at baseline to 2.052, 1.681, and 1.655 μg/mL at 3, 6, and 12 months, respectively (all P < .001).

Study details: Findings are from a longitudinal study including 71 patients with PsA, 55 patients with psoriasis, and 50 control individuals.

Disclosures: This study was supported by the interdisciplinary clinical research project of Peking University First Hospital, China, and other sources. The authors declared no conflict of interests.

Source: Li B et al. Serum calprotectin as a promising inflammatory biomarker in psoriatic arthritis: A 1-year longitudinal study. Rheumatol Ther. 2022 (Oct 21). Doi: 10.1007/s40744-022-00501-5

Key clinical point: Serum calprotectin (CLP) serves as an important inflammatory biomarker for diagnosing and monitoring disease activity in psoriatic arthritis (PsA).

Major finding: Participants with PsA vs control individuals without psoriasis or PsA had higher median CLP levels (3.816 vs 0.707 μg/mL; P < .001). The concentration of serum CLP decreased significantly along with the disease activity from 3.816 at baseline to 2.052, 1.681, and 1.655 μg/mL at 3, 6, and 12 months, respectively (all P < .001).

Study details: Findings are from a longitudinal study including 71 patients with PsA, 55 patients with psoriasis, and 50 control individuals.

Disclosures: This study was supported by the interdisciplinary clinical research project of Peking University First Hospital, China, and other sources. The authors declared no conflict of interests.

Source: Li B et al. Serum calprotectin as a promising inflammatory biomarker in psoriatic arthritis: A 1-year longitudinal study. Rheumatol Ther. 2022 (Oct 21). Doi: 10.1007/s40744-022-00501-5

Key clinical point: The Disease Activity index for Psoriatic Arthritis (DAPSA) based on a quick quantitative C-reactive protein (qCRP) assay (Q-DAPSA) showed perfect agreement with conventional DAPSA in the majority of patients with PsA.

Major finding: Overall, 98.1% of patients were similarly categorized into disease activity groups (remission and low, moderate, and high disease activity) using Q-DAPSA and DAPSA, with both indices showing identical numerical values in 57.7% of patients.

Study details: Findings are from a multicenter, cross-sectional study including 104 patients with PsA and available CRP values (measured by routine laboratory and quick qCRP assays).

Disclosures: This study was partially supported by Novartis. The authors declared receiving grants, personal fees, or support for attending meetings and travels from Novartis and other sources.

Source: Proft F et al. Evaluation of the Disease Activity index for PSoriatic Arthritis (DAPSA) with a quick quantitative C reactive protein assay (Q-DAPSA) in patients with psoriatic arthritis: A prospective multicentre cross-sectional study. RMD Open. 2022;8:e002626 (Nov 2). Doi: 10.1136/rmdopen-2022-002626

Key clinical point: The Disease Activity index for Psoriatic Arthritis (DAPSA) based on a quick quantitative C-reactive protein (qCRP) assay (Q-DAPSA) showed perfect agreement with conventional DAPSA in the majority of patients with PsA.

Major finding: Overall, 98.1% of patients were similarly categorized into disease activity groups (remission and low, moderate, and high disease activity) using Q-DAPSA and DAPSA, with both indices showing identical numerical values in 57.7% of patients.

Study details: Findings are from a multicenter, cross-sectional study including 104 patients with PsA and available CRP values (measured by routine laboratory and quick qCRP assays).

Disclosures: This study was partially supported by Novartis. The authors declared receiving grants, personal fees, or support for attending meetings and travels from Novartis and other sources.

Source: Proft F et al. Evaluation of the Disease Activity index for PSoriatic Arthritis (DAPSA) with a quick quantitative C reactive protein assay (Q-DAPSA) in patients with psoriatic arthritis: A prospective multicentre cross-sectional study. RMD Open. 2022;8:e002626 (Nov 2). Doi: 10.1136/rmdopen-2022-002626

Key clinical point: The Disease Activity index for Psoriatic Arthritis (DAPSA) based on a quick quantitative C-reactive protein (qCRP) assay (Q-DAPSA) showed perfect agreement with conventional DAPSA in the majority of patients with PsA.

Major finding: Overall, 98.1% of patients were similarly categorized into disease activity groups (remission and low, moderate, and high disease activity) using Q-DAPSA and DAPSA, with both indices showing identical numerical values in 57.7% of patients.

Study details: Findings are from a multicenter, cross-sectional study including 104 patients with PsA and available CRP values (measured by routine laboratory and quick qCRP assays).

Disclosures: This study was partially supported by Novartis. The authors declared receiving grants, personal fees, or support for attending meetings and travels from Novartis and other sources.

Source: Proft F et al. Evaluation of the Disease Activity index for PSoriatic Arthritis (DAPSA) with a quick quantitative C reactive protein assay (Q-DAPSA) in patients with psoriatic arthritis: A prospective multicentre cross-sectional study. RMD Open. 2022;8:e002626 (Nov 2). Doi: 10.1136/rmdopen-2022-002626