Objectives To assess whether therapy to achieve both a disease activity score in 28 joints (DAS28) less than 2.6 and matrix metalloproteinase (MMP) 3 normalisation offers better outcomes than either target alone in early rheumatoid arthritis (RA) at 56 weeks: Treating to Twin Targets (T-4) Study.
Methods 243 early RA patients were randomly allocated to one of four strategy groups: routine care (R group; n=62); DAS28-driven therapy (D group; n=60); MMP-3-driven therapy (M group; n=60); or both DAS28 and MMP-3-driven therapy group (twin; T group; n=61). Medication was started with sulfasalazine (1 g/day) in all intervention groups. Targets were DAS28 less than 2.6 for the D group, MMP-3 normalisation for the M group and both DAS28 less than 2.6 and MMP-3 normalisation for the T group. If the value in question did not fall below the previously measured level, medication was intensified, including methotrexate, other disease-modifying antirheumatic drugs and biological agents. Primary, secondary and outcome measures consisted of the proportions of patients showing clinical remission (DAS28 <2.6), radiographic non-progression (Δmodified total Sharp score ≤0.5), normal physical function (modified health assessment questionnaire score 0), or comprehensive disease remission defined as the combination of clinical remission, radiographic non-progression and normal physical function.
Results Clinical remission at 56 weeks was achieved by more patients in the T group (56%) than in the R group (p<0.0005) or M group (p<0.0005).
Conclusions Results of the T-4 Study reveal that a twin target strategy can achieve a high clinical remission rate in early RA.
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