Journal of Crohn's & colitis · 2022
Impact of Anti-tumour Necrosis Factor Agents on the Risk of Colorectal Cancer in Patients with Ulcerative Colitis: Nationwide French Cohort Study.
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Charkaoui Maeva, Hajage David, Tubach Florence, Beaugerie Laurent, Kirchgesner Julien
Аннотация
BACKGROUND AND AIMS: Patients with ulcerative colitis [UC] are at increased risk of colorectal cancer. Anti-tumour necrosis factor agents [anti-TNF] aim to reduce chronic colonic inflammation and may lower the risk of colorectal cancer [CRC], but the impact of anti-TNF exposure has not yet been assessed in population-based cohort studies. The aim of this nationwide study was to assess the risk of CRC in patients with UC exposed to anti-TNF.
METHODS: Based on the French health insurance database, patients aged 18 years or older with a diagnosis of UC, previously exposed to or initiating immunosuppressive treatment, were followed from January 1, 2009, until December 31, 2018. The risk of CRC associated with anti-TNF exposure was assessed using marginal structural Cox proportional hazard models adjusting for baseline and time-varying comorbidities including primary sclerosing cholangitis, UC disease activity, colonoscopic surveillance, and other medications.
RESULTS: Among 32 403 patients with UC, 15 542 [48.0%] were exposed to anti-TNF. During a median follow-up of 6.1 years [198 249 person-years], 246 incident CRC occurred (incidence rate per 1000 person-years, 1.24; 95% confidence intrval [CI], 1.10-1.41). Whereas the risk of CRC associated with anti-TNF exposure was not decreased in the overall group of patients with UC (hazard ratio [HR], 0.85; 95% CI, 0.58-1.26), anti-TNF exposure was associated with a decreased risk of CRC in patients with long-standing colitis [disease duration ≥10 years] [HR, 0.41; 95% CI, 0.20-0.86].
CONCLUSIONS: In a nationwide cohort of patients with UC, anti-TNF exposure was associated with a decreased risk of CRC in patients with long-standing colitis.
METHODS: Based on the French health insurance database, patients aged 18 years or older with a diagnosis of UC, previously exposed to or initiating immunosuppressive treatment, were followed from January 1, 2009, until December 31, 2018. The risk of CRC associated with anti-TNF exposure was assessed using marginal structural Cox proportional hazard models adjusting for baseline and time-varying comorbidities including primary sclerosing cholangitis, UC disease activity, colonoscopic surveillance, and other medications.
RESULTS: Among 32 403 patients with UC, 15 542 [48.0%] were exposed to anti-TNF. During a median follow-up of 6.1 years [198 249 person-years], 246 incident CRC occurred (incidence rate per 1000 person-years, 1.24; 95% confidence intrval [CI], 1.10-1.41). Whereas the risk of CRC associated with anti-TNF exposure was not decreased in the overall group of patients with UC (hazard ratio [HR], 0.85; 95% CI, 0.58-1.26), anti-TNF exposure was associated with a decreased risk of CRC in patients with long-standing colitis [disease duration ≥10 years] [HR, 0.41; 95% CI, 0.20-0.86].
CONCLUSIONS: In a nationwide cohort of patients with UC, anti-TNF exposure was associated with a decreased risk of CRC in patients with long-standing colitis.