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Single center prospective study of tacrolimus efficacy and safety in treatment of rheumatoid arthritis

Single center prospective study of tacrolimus efficacy and safety in treatment of rheumatoid arthritis

Rheumatology International 29(4): 431-436

The aim of this study was to prospectively evaluate the efficacy and safety of tacrolimus for treating rheumatoid arthritis (RA) patients in clinical practice. Fifty-five active RA patients who had been resistant or intolerant to other disease-modifying antirheumatic drugs were enrolled in this open-label trial. Patients were administered tacrolimus at a dosage of 1, 2 or 3 mg once daily, and followed up for 24 weeks. They were divided into three groups according to their dosage. Efficacy and safety were evaluated utilizing clinical and laboratory findings. Eighty percent of the patients had moderate or high disease activity; 55% were elderly and 53% had complications; 65% of the patients were started on tacrolimus as a monotherapy. Moderate or good response rates were achieved as follows: 38.2% (4 weeks); 41.8% (12 weeks); and 45.6% (24 weeks). Adverse events were observed in seven cases (12.7%). Only one case required hospitalization due to severe hyperglycemia caused by a high tacrolimus concentration (24.2 ng/ml); we suspected a drug interaction in this subject. Mean concentrations were dose-dependent in the 1, 2, and 3 mg/day groups (2.96, 4.29, and 8.32 ng/ml, respectively). Four cases of high concentration (over 10 ng/ml), without any signs or symptoms, were observed in the 3 mg/day group; in these cases, doses were decreased and no severe adverse events occurred. Tacrolimus was found to be both effective and safe in treating active RA patients with complicated backgrounds in clinical practice. Blood concentration measurements and dose adjustments should be performed to prevent severe adverse events in a 3 mg/day group.

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Accession: 055793443

Download citation: RISBibTeXText

PMID: 19127365

DOI: 10.1007/s00296-008-0833-z

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