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Abstract Number: 953

Comparison of 10-Years Disease Outcomes of Rheumatoid Arthritis Patients with Continued Low Disease Activity on Methotrexate with or without Initial Combination Therapy with Infliximab or Prednisone and Sulfasalazine

SA Bergstra1, RBM Landewé2,3, TWJ Huizinga1 and CF Allaart1, 1Department of Rheumatology, LUMC, Leiden, Netherlands, Leiden, Netherlands, 2Amsterdam Rheumatology & Immunology Center, Netherlands, Amsterdam, Netherlands, 3Zuyderland Medical Center, Heerlen, Netherlands, Heerlen, Netherlands

Meeting: 2016 ACR/ARHP Annual Meeting

Date of first publication: September 28, 2016

Keywords: combination therapies, Disease Activity, methotrexate (MTX) and rheumatoid arthritis (RA)

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Session Information

Date: Sunday, November 13, 2016

Session Title: Rheumatoid Arthritis – Small Molecules, Biologics and Gene Therapy I: Treatment Strategies

Session Type: ACR Concurrent Abstract Session

Session Time: 2:30PM-4:00PM

Background/Purpose: Low disease activity and remission in rheumatoid arthritis (RA) patients is achieved earlier and in higher frequency when the initial treatment includes a combination of methotrexate (MTX) with corticosteroids or a biologic disease modifying anti-rheumatic drug than MTX alone. However, it is unknown whether persistently good responders to MTX monotherapy have similarly good long-term outcomes than persistently good responders to initial combination therapy. The aim was to compare 10 years disease outcomes of RA patients with persistent low disease activity on MTX monotherapy with patients on initial combination therapy with infliximab or prednisone and sulfasalazine.

Methods: RA patients with 10 years follow-up from the BeSt study were analyzed. RA patients fulfilling the American College of Rheumatology 1987 criteria with <2 years symptom duration were ‘treated to target’ aiming at disease activity score (DAS) ≤2.4, assessed with 3-monthly intervals. Patients in arms 1 and 2 started MTX monotherapy, patients in arm 3 started MTX, sulfasalazine and prednisone and patients in arm 4 started MTX and infliximab.  All had DAS ≤2.4 from t=6 months until t=10 years and therefore stayed on initial treatment, with patients in arms 3 and 4 tapering to monotherapy within 10 months. Patients in arms 1 and 2 were compared with patients in arms 3 and 4. Between-group differences over time were compared using (generalized) linear mixed model analyses, for the outcomes DAS, Health Assessment Questionnaire (HAQ), erythrocyte sedimentation rate (ESR), visual analogue scale (VAS) patient global health (range 0-100), % patients in remission and drug free remission and % patients with Sharp/van der Heijde score progression ≥1.

Results: At t=10 years 28/247 (11%) patients in arms 1 and 2 had continued DAS≤2.4 compared to 68/261 (26%) patients in arms 3 and 4. Patients in arms 1 and 2 were less often ACPA positive (46% versus 54%), had shorter symptom duration at baseline [median (range) 14 (1-191) versus 18(4-263) weeks] and less radiologic damage progression after 10 years [0 (0-16) versus 2.5 (0-26)] than patients in arms 3 and 4. No between-group differences were found over time. Significant group-time interactions were found for DAS, ESR, VAS patient’s global health, percentage remission, but not HAQ and percentage drug free remission, with slightly worse results over time for arms 3 and 4 compared to arms 1 and 2 (table 1).

Conclusion: More patients achieved persistent low disease activity on initial combination therapy with prednisone or infliximab than on MTX monotherapy, but additional benefits of combination treatment strategies for patients who have continued DAS ≤2.4 could not be found. These results strongly suggest that rapid achievement of remission/LDA itself, rather than how you achieve it, is crucial for determining long-term outcome in RA.


Disclosure: S. Bergstra, None; R. Landewé, Abbott, Amgen, Centocor, Novartis, Pfizer, Rhoche, Schering-Plough, UCB, Wyeth., 2,Abbott/AbbVie, Amgen, Bristol Myers Squibb, Janssen (formerly Centocor), Merck, Pfizer, Rhoche, Schering-Plough, UCB, Wyeth., 9,Robert Landewé is director of Rheumatology Consultancy BV, which is a registered company under Dutch law., 4,Abbott/AbbVie, Ablynx, Amgen, Astra-Zeneca, Bristol Myers Squibb, Celgene, Janssen (formerly Centocor), Galapagos, Glaxo-Smith-Kline, Novartis, Novo-Nordisk, Merck, Pfizer, Rhoche, Schering-Plough, TiGenix, UCB, Wyeth., 5; T. Huizinga, None; C. Allaart, Dutch College of Health Insurances en Janssen Inc., 2.

To cite this abstract in AMA style:

Bergstra S, Landewé R, Huizinga T, Allaart C. Comparison of 10-Years Disease Outcomes of Rheumatoid Arthritis Patients with Continued Low Disease Activity on Methotrexate with or without Initial Combination Therapy with Infliximab or Prednisone and Sulfasalazine [abstract]. Arthritis Rheumatol. 2016; 68 (suppl 10). https://acrabstracts.org/abstract/comparison-of-10-years-disease-outcomes-of-rheumatoid-arthritis-patients-with-continued-low-disease-activity-on-methotrexate-with-or-without-initial-combination-therapy-with-infliximab-or-prednisone-a/. Accessed June 1, 2023.
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