Objective: This longitudinal study aims to determine if statins inhibit the response to rituximab in rheumatoid arthritis (RA) patients.
Methods: 41 patients initiating rituximab were included; 17 patients were exposed to the combination of statins and rituximab. The total cholesterol, erythrocyte sedimentation rate (ESR), and C-reactive protein (CRP) were assessed. The clinical response was evaluated using Disease Activity Score (DAS28) and European League against Rheumatism (EULAR) response at 6 and 18 months.
Results: A tendency of increasing in DAS28 was observed in statin-exposed group but the correlation was very weak (at 18 months: r = 0.013, P = 0.952). The statin-exposed status was negatively and very weakly correlated with EULAR response at 6 months (r = -0.073, P = 0.661) and 18 months (r = -0.197, P = 0.244). There was a negative correlation between statin-exposed status and inflammatory markers values (ESR and CRP); however, the correlation was very weak. The use of statin did not influence the cardiovascular risk measured by modified Systematic Coronary Risk Evaluation (mSCORE).
Conclusions: Long-term significant inhibitory effects of statins on rituximab treatment in RA have not been proved using clinical response scores or biologic markers.
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| http://dx.doi.org/10.1155/2014/689426 | DOI Listing |
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