Laure Gossec1, Ghislaine Steinberg2, Stephanie Rouanet3, Bernard Combe4. 1. Sorbonne Universités, UPMC Univ Paris 06, Institut Pierre Louis d'Epidémiologie et de Santé Publique, and AP-HP, Pitié Salpêtrière Hospital, Department of rheumatology, Paris, France. laure.gossec@aphp.fr. 2. Medical Department, Roche, France. 3. eXYSTAT, Paris, France. 4. Rheumatology Department, Lapeyronie Hospital, Montpellier CHRU, and Université Montpellier I, Montpellier, France.
Abstract
OBJECTIVES: Fatigue is an important aspect of rheumatoid arthritis (RA). The objective was to assess fatigue levels and its determinants over the first 4 months of tocilizumab (TCZ) treatment in RA patients. METHODS: We performed a multicentre prospective study of RA patients treated with intravenous TCZ in open-label prescription conditions. The first 5 infusions (4 months) were assessed. The primary endpoint was the percentage of patients with variation of the FACIT fatigue scale from inclusion to 4 months, above the minimal clinically important difference (MCID) of 4 points. Fatigue was also assessed by the patient acceptable symptom state for fatigue (PASS) question. Variables related with fatigue and with fatigue improvement including other patient reported outcomes, depression and anxiety, and disease activity, were assessed before and after treatment. ANALYSES: univariate and multivariate logistic regressions. RESULTS: Of 719 patients, 610 had evaluable data: mean age 56±13 years, disease duration 12±10 years, 490 (81%) women. At baseline, fatigue levels were high: 73% patients had unacceptable fatigue. At 4 months, 378 patients (62%) reached MCID improvement for fatigue. Fatigue reduction was rapid, seen as early as after 2 weeks. Fatigue was mainly related to functional status (HAQ score), depression and anxiety, both before and after TCZ treatment. Moderate predictors of fatigue improvement were evidenced. CONCLUSIONS: In these long-standing RA patients, fatigue levels were high and mainly explained by HAQ and psychological distress but improved with treatment indicating a link with disease activity. The pathophysiological basis of RA fatigue should be further explored.
OBJECTIVES:Fatigue is an important aspect of rheumatoid arthritis (RA). The objective was to assess fatigue levels and its determinants over the first 4 months of tocilizumab (TCZ) treatment in RApatients. METHODS: We performed a multicentre prospective study of RApatients treated with intravenous TCZ in open-label prescription conditions. The first 5 infusions (4 months) were assessed. The primary endpoint was the percentage of patients with variation of the FACIT fatigue scale from inclusion to 4 months, above the minimal clinically important difference (MCID) of 4 points. Fatigue was also assessed by the patient acceptable symptom state for fatigue (PASS) question. Variables related with fatigue and with fatigue improvement including other patient reported outcomes, depression and anxiety, and disease activity, were assessed before and after treatment. ANALYSES: univariate and multivariate logistic regressions. RESULTS: Of 719 patients, 610 had evaluable data: mean age 56±13 years, disease duration 12±10 years, 490 (81%) women. At baseline, fatigue levels were high: 73% patients had unacceptable fatigue. At 4 months, 378 patients (62%) reached MCID improvement for fatigue. Fatigue reduction was rapid, seen as early as after 2 weeks. Fatigue was mainly related to functional status (HAQ score), depression and anxiety, both before and after TCZ treatment. Moderate predictors of fatigue improvement were evidenced. CONCLUSIONS: In these long-standing RApatients, fatigue levels were high and mainly explained by HAQ and psychological distress but improved with treatment indicating a link with disease activity. The pathophysiological basis of RA fatigue should be further explored.
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