scholarly journals Low-dose prednisolone in addition to the initial disease-modifying antirheumatic drug in patients with early active rheumatoid arthritis reduces joint destruction and increases the remission rate: A two-year randomized trial

2005 ◽  
Vol 52 (11) ◽  
pp. 3360-3370 ◽  
Author(s):  
Björn Svensson ◽  
Annelies Boonen ◽  
Kristina Albertsson ◽  
Désirée van der Heijde ◽  
Catharina Keller ◽  
...  
Keyword(s):  
Rheumatoid Arthritis ◽  
Randomized Trial ◽  
Active Rheumatoid Arthritis ◽  
Low Dose ◽  
Remission Rate ◽  
Joint Destruction ◽  
Antirheumatic Drug ◽  
Disease Modifying ◽  
Disease Modifying Antirheumatic Drug

scholarly journals Results from a Phase IIA Parallel Group Study of JNJ-40346527, an Oral CSF-1R Inhibitor, in Patients with Active Rheumatoid Arthritis despite Disease-modifying Antirheumatic Drug Therapy

2015 ◽  
Vol 42 (10) ◽  
pp. 1752-1760 ◽  
Author(s):  
Mark C. Genovese ◽  
Elizabeth Hsia ◽  
Stanley M. Belkowski ◽  
Caly Chien ◽  
Tara Masterson ◽  
...  
Keyword(s):  
Rheumatoid Arthritis ◽  
Disease Activity ◽  
Primary Endpoint ◽  
Active Rheumatoid Arthritis ◽  
Antirheumatic Drug ◽  
Target Engagement ◽  
Dmard Therapy ◽  
Parallel Group ◽  
Disease Modifying ◽  
Disease Modifying Antirheumatic Drug

Objective.To assess the efficacy and safety of JNJ-40346527, a selective inhibitor of colony-stimulating factor-1 (CSF-1) receptor kinase that acts to inhibit macrophage survival, proliferation, and differentiation in patients with active rheumatoid arthritis (RA) despite disease-modifying antirheumatic drug (DMARD) therapy.Methods.In this randomized, double-blind, placebo-controlled, parallel group study, adults were randomized (2:1) to receive oral JNJ-40346527 100 mg or placebo twice daily through Week 12. Patients with RA had disease activity [≥ 6 swollen/≥ 6 tender joints, C-reactive protein (CRP) ≥ 0.8 mg/dl] despite DMARD therapy for ≥ 6 months. The primary endpoint was change from baseline at Week 12 in the 28-joint Disease Activity Score with CRP (DAS28-CRP). Pharmacokinetic/pharmacodynamic analyses were also performed, and safety was assessed through Week 16.Results.Ninety-five patients were treated (63 JNJ-40346527, 32 placebo); 8 patients discontinued treatment (6 JNJ-40346527, 2 placebo) through Week 12. Mean improvements in DAS28-CRP from baseline to Week 12 were 1.15 for the JNJ-40346527 group and 1.42 for the placebo group (p = 0.30); thus, a statistically significant difference was not observed for the primary endpoint. Pharmacokinetic exposure to JNJ-40346527 and its active metabolites was above the projected concentration needed for pharmacologic activity, and effective target engagement and proof of activity were demonstrated by increased levels of CSF-1 and decreased CD16+ monocytes in JNJ-40346527–treated, but not placebo-treated, patients. Thirty-seven (58.7%) JNJ-40346527–treated and 16 (50.0%) placebo-treated patients reported ≥ 1 adverse event (AE); 1 (1.6%) JNJ-40346527–treated and 3 (9.4%) placebo-treated patients reported ≥ 1 serious AE.Conclusion.Although adequate exposure and effective peripheral target engagement were evident, JNJ-40346527 efficacy was not observed in patients with DMARD-refractory active RA. ClinicalTrials.gov identifier: NCT01597739. EudraCT Number: 2011-004529-28.

scholarly journals Lack of association between CYB5A gene rs1790834 polymorphism and the response to leflunomide in women with rheumatoid arthritis

2021 ◽  
Author(s):  
Małgorzata Łączna ◽  
Damian Malinowski ◽  
Agnieszka Paradowska-Gorycka ◽  
Krzysztof Safranow ◽  
Violetta Dziedziejko ◽  
...  
Keyword(s):  
Rheumatoid Arthritis ◽  
Disease Activity ◽  
Antirheumatic Drug ◽  
Disease Modifying ◽  
Individual Disease ◽  
Disease Modifying Antirheumatic Drug

Abstract Aim Leflunomide is a disease-modifying antirheumatic drug used in therapy for rheumatoid arthritis (RA). Previous studies indicated that oestrogens and androgens may affect the response to leflunomide in RA patients. The synthesis of androgens is regulated by cytochrome CYB5A. The aim of this study was to examine the association between the CYB5A gene rs1790834 polymorphism and the response to leflunomide in women with RA. Methods The study included 111 women diagnosed with RA. Leflunomide was administered in monotherapy at a dose of 20 mg/day. All patients underwent a monthly evaluation for 12 months after the initiation of treatment with leflunomide. Results After 12 months of therapy, the changes in individual disease activity parameters, such as: DAS28, ESR, CRP and VAS, were not statistically significantly different between rs1790834 genotypes in the Kruskal–Wallis test. Conclusions The results of our study suggest lack of statistically significant association between the CYB5A gene rs1790834 polymorphism and the response to leflunomide in women with RA.

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