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. 2015 Jun;79(6):988-99.
doi: 10.1111/bcp.12565.

Drug-induced liver injury: results from the hospital-based Berlin Case-Control Surveillance Study

Antonios Douros  1   2 , Elisabeth Bronder  1 , Frank Andersohn  3 , Andreas Klimpel  1 , Michael Thomae  4 , Giselle Sarganas  1 , Reinhold Kreutz  1 , Edeltraut Garbe  1   2
Affiliations

Drug-induced liver injury: results from the hospital-based Berlin Case-Control Surveillance Study

Antonios Douros et al. Br J Clin Pharmacol. 2015 Jun.

Abstract

Aim: Drug-induced liver injury (DILI) is often responsible for acute liver failure, drug withdrawal, boxed warnings or drug non-approval. Therefore, we conducted a case-control study to determine the hepatotoxic risk of a wide range of drugs.

Methods: The Berlin Case-Control Surveillance Study FAKOS included all 51 Berlin hospitals in a hospital network. Between 2002 and 2011, 198 patients with acute idiopathic hepatitis, 377 inpatient controls and 708 outpatient controls were ascertained. Case patients were thoroughly validated using anamnestic, clinical, laboratory and histological data. Drug exposure was obtained in a face-to-face interview. A possible drug aetiology was assessed in individual patients by applying the updated Council for International Organizations of Medical Sciences (CIOMS) scale. Drug risks were further quantified [odds ratios (OR) with 95% confidence intervals (CI)] in a case-control design with unconditional logistic regression analysis. Drug intake in the last 28 days before index date was considered for the analysis.

Results: The study corroborated hepatotoxic risks for a number of drugs, including phenprocoumon (OR 3.3, 95% CI 1.5, 6.7), amiodarone (OR 5.5, 95% CI 1.3, 21.2), clozapine (OR 34.6, 95% CI 2.8, 824.9) and flupirtine (OR 40.2, 95% CI 5.5, 856.9). Increased risks were also suggested for less commonly reported substances such as angiotensin II receptor blockers, atypical antipsychotics and for biperiden, a drug never before reported to be hepatotoxic.

Conclusions: Our study identified a large number of drugs as possible causes of hepatotoxicity. The observed risk for seldom reported substances highlights the need for further post-authorization safety studies not exclusively focusing on drugs already labelled as potentially hepatotoxic.

Keywords: drug safety; hepatotoxicity; pharmacovigilance.

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Figures

Figure 1
Figure 1
Study design. DILI, drug-induced liver injury; CIOMS, Council for International Organizations of Medical Sciences
See this image and copyright information in PMC

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