Comparison of Serious Adverse Event Profiles Among Antirheumatic Agents Using Japanese Adverse Drug Event Report Database

Abstract

Background:

The association between drugs and adverse events (AEs) has been investigated using various AE databases. The aim of this study was to provide useful information for risk minimization of antirheumatic agents by investigating the safety profiles of antirheumatic agents using the Japanese Adverse Drug Event Report database (JADER), focusing on some important serious AEs (SAEs) and their relation to time.

Methods:

Tumor necrosis factor-alpha inhibitors (TNF-Is), interleukin-6 inhibitors (IL-6-Is), and methotrexate (MTX) were selected as antirheumatic agents. Tuberculosis, malignant tumors, and bone marrow disorders were focused as typical SAEs. Disproportionate reporting of these SAEs was evaluated using the reporting odds ratio. Time to onset of each SAE was calculated using date information.

Results:

Increased reporting odds ratios were observed in tuberculosis and malignant tumors associated with TNF-I, in tuberculosis and malignant tumors associated with IL-6-I, and in tuberculosis, malignant tumors, and bone marrow disorders associated with MTX. The median time to onset of the focused SAEs associated with TNF-I were 501, 681, and 254 days, respectively; those associated with IL-6-I were 387, 636, and 116 days; and those associated with MTX were 537, 1125, and 328 days. These results suggested different profiles for the focused SAEs.

Conclusion:

The time-to-onset profiles of the SAEs for TNF-I, IL-6-I, and MTX as antirheumatic agent were different among different SAEs, which suggests that they should be monitored carefully based on the profiles. The information from JADER is expected to contribute to the risk minimization of drugs in the actual clinical practice.

Keywords

JADER serious adverse event SAE antirheumatic agent reporting odds ratio time to onset

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