Journal
AMERICAN JOURNAL OF THERAPEUTICS
Volume 29, Issue 4, Pages E437-E443Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/MJT.0000000000001065
Keywords
primary sclerosing cholangitis; inflammatory bowel disease; gut microbiome; doxycycline; case series
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This study investigates the potential relationship between exposure to doxycycline and the onset of primary sclerosing cholangitis (PSC) or PSC-IBD. The study identifies 9 cases in which there is a temporal relationship between doxycycline exposure and the development of PSC or PSC-IBD.
Background: Primary sclerosing cholangitis (PSC) is linked to inflammatory bowel diseases (IBD). Evidence suggests an association between the gut microbiome and PSC. However, the putative relationship between exposure to antibiotics and onset of PSC has never been reported. We observed 3 cases in which patients without antecedent liver or bowel issues developed symptoms leading to diagnosis of IBD and subsequently PSC after being exposed to doxycycline. We aimed to identify, through the PSC Partners national patient registry, additional cases of PSC in which there is a temporal relationship between exposure to doxycycline and onset of PSC or PSC-IBD. Areas of Uncertainty: The etiopathogenesis of PSC remains an enigma. Data Sources: We collected data from patients with PSC and PSC-IBD in which there seemed to be a temporal relationship between exposure to doxycycline and PSC. Time from doxycycline exposure to: (1) onset of PSC or PSC-IBD symptoms and (2) diagnosis of PSC were documented for each patient. Descriptive statistical analyses were performed. Results: We identified 6 additional patients with PSC or PSC-IBD in whom there was a temporal relationship between exposure to doxycycline and onset of PSC or PSC-IBD. The median age of these 9 patients was 20 years, 6 were female, and 7 had ulcerative colitis. The median time from doxycycline exposure to onset of first symptoms was 3 months, and median time from doxycycline exposure to diagnosis of PSC was 15 months. Therapeutic Hypothesis: We describe 9 cases of PSC and PSC-IBD in which there seem to be a temporal relationship between exposure to doxycycline and onset of PSC.
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