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- W2329050707 abstract "<h3>Background</h3> Anti-TNF plus methotrexate (MTX) is more effective than either as monotherapy. Thus far, no controlled data are available on the benefit:risk of different doses of MTX in combination with anti-TNF. <h3>Objectives</h3> To determine the effect of MTX dose in combination with adalimumab (ADA) on efficacy, pharmacokinetics, and safety in patients (pts) with early rheumatoid arthritis (RA). <h3>Methods</h3> CONCERTO was a 26-week (wk), double-blind, parallel-arm trial in MTX and biologic-naive pts with active RA [DAS28(CRP) ≥3.2; CRP ≥1.5 mg/dL or ESR ≥28 mm/hr; ≥1 erosion or RF+ or ACPA+] of <1 year duration. Pts were randomized 1:1:1:1 to wkly oral MTX (2.5, 5, 10, or 20 mg) and received open-label (OL) ADA 40 mg every other wk (eow). Pts in the 20 mg arm began 10 mg and escalated 2.5 mg eow to 20 mg. The primary endpoint was the achievement of low disease activity [LDA, DAS28(CRP) <3.2] at wk 26. Secondary endpoints included ACR50/70/90, DAS28(CRP) (<2.6)/SDAI (≤3.3)/CDAI (≤2.8) remission, radiographic nonprogression (ΔmTSS ≤0.5), and ΔHAQ-DI ≤-0.22 at wk 26. Dose-response was assessed via Cochran-Armitage linear trend test. Non-responder imputation was used for missing data. Serum samples for pharmacokinetics were collected prior to baseline and at all study visits. Safety was assessed in terms of adverse events (AEs) for all pts who received ≥1 dose of study drug. <h3>Results</h3> Of the 395 randomized pts, 358 (83, 93, 93, and 89 from the 2.5, 5, 10, and 20 mg arms, respectively) completed 26 wks. At wk 26, there was a statistically significant trend in the proportion of pts achieving LDA with increasing dose of MTX in combination with OL ADA (<b>Table</b>). Significant trends were noted as early as wk 12 and sustained through wk 26. Similar results were observed for ACR50/70/90 and DAS28(CRP)/SDAI/CDAI remission. Numerically increasing trends were also apparent in the proportions achieving radiographic nonprogression and ΔHAQ-DI ≤-0.22 at wk 26. Clinical and radiographic outcomes generally appeared comparable between the 10 and 20 mg arms. ADA serum concentrations were similar in the 10 and 20 mg MTX arms, with slightly lower mean ADA serum concentrations in the 2.5 and 5 mg arms. AEs were consistent with the known profile of anti-TNF and were generally consistent between arms, occurring most frequently in the 20 mg arm. <h3>Conclusions</h3> MTX and biologic-naïve pts with early RA demonstrated robust and dose-dependent clinical responses with increasing doses of MTX in combination with OL ADA through 26 wks. Interestingly, clinical responses and ADA serum concentrations generally appeared similar between the 10 and 20 mg MTX arms. <h3>Acknowledgements</h3> AbbVie Inc. sponsored the study (NCT01185301), contributed to its design, and participated in the collection, analysis, and interpretation of the data, and in the writing, reviewing, and approval of the final version. Medical writing support was provided by Benjamin Wolfe, PhD, of AbbVie Inc. <h3>Disclosure of Interest</h3> G. Burmester Grant/research support from: AbbVie Inc., BMS, Merck, Roche, Pfizer, UCB, Consultant for: AbbVie Inc., BMS, Merck, Roche, Pfizer, UCB, Speakers bureau: AbbVie Inc., BMS, Merck, Roche, Pfizer, UCB, A. Kivitz Grant/research support from: AbbVie Inc., Pfizer, Genentech, UCB, Amgen, Celgene, BMS, Astra-Zeneca, Janssen, Consultant for: Genentech, UCB, BMS, Speakers bureau: BMS, H. Kupper Shareholder of: AbbVie Inc., Employee of: AbbVie Inc., U. Arulmani Shareholder of: AbbVie Inc., Employee of: AbbVie Inc., S. Florentinus Shareholder of: AbbVie Inc., Employee of: AbbVie Inc., S. Goss Shareholder of: AbbVie Inc., Employee of: AbbVie Inc., S. Rathmann Shareholder of: AbbVie Inc., Employee of: AbbVie Inc., R. Fleischmann Grant/research support from: AbbVie Inc., Pfizer, Merck, Roche, UCB, Celgene, Amgen, Astra-Zeneca, BMS, Janssen, Lilly, Novartis, Consultant for: AbbVie Inc., Pfizer, Merck, Roche, UCB, Celgene, Amgen, Astra-Zeneca, BMS, Janssen, Lilly, Novartis" @default.
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- W2329050707 date "2013-06-01" @default.
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- W2329050707 title "OP0067 Efficacy, Pharmacokinetics, and Safety of Different Doses of Methotrexate in Combination with Adalimumab: Results from the Concerto Trial" @default.
- W2329050707 doi "https://doi.org/10.1136/annrheumdis-2013-eular.272" @default.
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