Session Type: ACR Poster Session A
Session Time: 9:00AM-11:00AM
The OPTIBIO study is a clinical trial whose primary endpoint is to evaluate the proportion of patients that after one year are maintained in clinical remission with a dose reduction treatment regimen of biological therapy in patients with Rheumatoid Arthritis (RA), and to evaluate if the proportion of patients in remission with new regimen dose of treatment is not inferior to patients in remission with standard dose regimen. In our present work, we describe the preliminary results obtained so far.
Open, randomized and controlled study of patients in clinical remission (DAS 28 <2.6 or SDAI <5 or ACR/EULAR 2011 criteria) at least 6 months followed in Third level Hospital Rheumatology Department. Patients treated with TNF inhibitors therapies (Etanercept, Infliximab, Adalimumab, Certolizumab, Golimumab), Tocilizumab and Abatacept. Patients are assigned to two groups randomly. Intervention group: according to a standardized protocol of dose reduction of biological therapies, Control group: according to standard dose regimen. Flare is considered when DAS28>2.6 or SDAI>5 or ACR/EULAR criteria are not fulfilled. Patients are following during after a minimum period of one year and maximum period of 3 years. The frequency of visits is every 12 weeks.
66 patients have been included from 14 April 2014 to 28 April 2016. Fifty-five women (83.33%) and 11 men (16.66%) with a mean age of 59.68 ± 11.72 years. Thirty-four patients in standard regimen dose and 32 patients in dose reduction regimen with comparable baseline characteristics for both groups. Positive Rheumatoid Factor (RF) in 80.30%. Forty-seven patients have erosive disease. None of the patients had tender or swollen joints at the beginning. At baseline, ESR and CRP values were 16.65 ±10.48 mm/1hour y 0.22 ± 0.23 mg/dl respectively, DAS 28-ESR value was 1.83 ±0.72 and DAS28-CRP was 1.35 ± 0.26. SDAI baseline value was 1.36 ± 1.00. Eighteen patients have presented a flare: 20.58 % in control group and 34.37 % in intervention group without statistical signification (p=0.209) with a Relative Risk (RR) 1.66 [0.73 – 3.77]. Baseline characteristics of the patients are described in tables 1 and 2
To cite this abstract in AMA style:Bejerano C, Oreiro N, Fernandez-Lopez C, Pinto-Tasende JA, Atanes A, De Aspe B, Graña Gil G, Freire M, Acasuso M, Pertega S, de Toro FJ, Blanco FJ. Clinical Evaluation Usefulness of Standardized Protocol Strategies of Dose Reduction in Patients with Rheumatoid Arthritis in Clinical Remission Treated with Biologic Therapies. the Optibio Study [abstract]. Arthritis Rheumatol. 2016; 68 (suppl 10). https://acrabstracts.org/abstract/clinical-evaluation-usefulness-of-standardized-protocol-strategies-of-dose-reduction-in-patients-with-rheumatoid-arthritis-in-clinical-remission-treated-with-biologic-therapies-the-optibio-study/. Accessed May 17, 2022.
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ACR Meeting Abstracts - https://acrabstracts.org/abstract/clinical-evaluation-usefulness-of-standardized-protocol-strategies-of-dose-reduction-in-patients-with-rheumatoid-arthritis-in-clinical-remission-treated-with-biologic-therapies-the-optibio-study/