Serial Tuberculosis Screening in Inflammatory Bowel Disease Patients Receiving Anti-TNF alpha Therapy

• Type: Article in International Scientific Journal
• Date: 2017

Authors

Abreu, C (Author) FMUP; Afonso, J (Author) FMUP; Dias C (Author) FMUP; Ruas, R (Author) Other; Sarmento A (Author) FMUP; Magro F (Author) FMUP

Journal

Title: Journal of Crohn's and Colitis

Vol. 11

Pages: 1223-1229

ISSN: 1873-9946

Publisher: Oxford University Press

Indexing

ISI Web of Knowledge - 8 Citations

Scopus - 10 Citations

Other information

Authenticus ID: P-00N-2T6

DOI: 10.1093/ecco-jcc/jjx080

Abstract (EN): Background and Aims: One of the adverse effects of the tumour necrosis factor alpha [[TNF alpha] monoclonal antibodies for the treatment of immune-mediated inflammatory diseases is a higher propensity for tuberculosis development. The aim of this study was to explore the utility and sensitivity of serial tuberculosis screening during anti-TNF alpha treatment. Methods: A cohort of 46 inflammatory bowel disease patients receiving infliximab was prospectively recruited and followed for 26 months. During this period of time, a tuberculosis skin test and two different interferon gamma release assays [QFT-GIT and T-SPOT.TB] were applied at 4-6-month intervals. Results: Overall, 16 patients were diagnosed with latent tuberculosis infection after having at least one test conversion: 12 patients had a positive tuberculosis skin test, seven patients had a positive T-SPOT.TB, and two patients had a positive QFT-GIT. Active tuberculosis was excluded in all; 15 were treated with isoniazid. A comparison between tests showed a moderate accuracy [72% to 85%] but low kappa values [0.063 to 0.377]. Concerning association with demographic and clinical characteristics, test conversion was more common among the male gender and those with a longer disease duration. (C)onclusions: Tuberculosis tests conversions were common in inflammatory bowel disease patients treated with infliximab alone or in association with immunomodulators. In these immunosuppressed individuals, the classical tuberculosis skin test seems to have a higher sensitivity than the modern tests based on the release of interferon gamma.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 7