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Updated: Feb 7, 2026

Development and Validation of an Ultrasensitive Single Molecule Array Digital Enzyme-linked Immunosorbent Assay for Human Interferon-α
Published on: June 14, 2018
Systematic review of acute pancreatitis associated with interferon-α or pegylated interferon-α: Possible or
Fateh Bazerbachi1, Samir Haffar2, Mohammad Tahir Hussain1
1Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN 55905, United States.
Background:
Acute pancreatitis (AP) associated with interferon-α or pegylated interferon-α (AP-IFN) has been described, although the causal relation certitude remains elusive. Some recent studies suggest definite causality, although the relation is grouped in class III of Badalov classification of drug-induced AP.
Objectives:
Perform systematic review of AP-IFN and assess causality.
Methods:
Two reviewers independently evaluated the data and quality of studies extracted from multiple databases on March 13, 2017. Studies selection was based on a priori criteria. Naranjo scale, and Badalov classification were applied to determine causality.
Results:
We identified 16 studies that reported AP-IFN with a total of 23 patients. Fifteen studies had moderate to good methodological quality. The frequency of AP-IFN was 7/3450 (0.2%). The median age of patients was 50 years. In most cases IFN was used for chronic hepatitis C. The latency between IFN and diagnosis of AP was (>30 days). AP was mild or moderately severe and improved with supportive management. No mortality was observed. Re-challenge was done in 5 patients and resulted in AP recurrence in 3 cases. Twenty-one cases were classified as probable and 2 cases as definitive according to Naranjo scale. Evaluations of studies confirm a status Ia for AP-IFN according to Badalov classification.
Conclusion:
AP-IFN is rare and has a probable or definite causal relation according to Naranjo scale. The evidence supports a class Ia of Badalov classification. Hypertriglyceridemia is not a contributing factor. IFN-induced AP is usually mild or moderately severe, and responds favorably to supportive management.
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