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. 2024 Jun 3;18(6):828-835.
doi: 10.1093/ecco-jcc/jjae008.

Recombinant Zoster Vaccine [RZV] is Effective in Patients with Inflammatory Bowel Disease: A US Propensity Matched Cohort Study

Aakash Desai  1 , Jana G Hashash  1 , Gursimran S Kochhar  2 , Mary S Hayney  3 , Freddy Caldera  4 , Francis A Farraye  1
Affiliations

Recombinant Zoster Vaccine [RZV] is Effective in Patients with Inflammatory Bowel Disease: A US Propensity Matched Cohort Study

Aakash Desai et al. J Crohns Colitis. .

Abstract

Background: Recombinant zoster vaccine [RZV] reduces the short-term risk of herpes zoster [HZ] in patients with inflammatory bowel disease [IBD]. However, there is lack of data regarding the long-term effectiveness in this population.

Methods: A retrospective cohort study was conducted in adults ≥50 years old using TriNetX database between patients with IBD who received two doses of RZV [IBD-RZV cohort] and patients who did not receive RZV [IBD control cohort]. The primary outcome was risk of incident HZ. One-to-one propensity score matching was performed for demographic parameters, comorbid conditions, and IBD medications. Risk was expressed as adjusted odds ratio [aOR] with 95% confidence intervals [CI].

Results: The IBD-RZV cohort [n = 5489; mean age 63.2 ± 9.1 years; 57.2% females] was identified with a mean follow-up of 900.9 days. IBD-RZV cohort had a lower risk of HZ [aOR 0.44, 95% CI 0.32-0.62] compared with IBD control cohort. The risk of HZ was lower in patients aged 50-65 years [aOR 0.41, 95% CI 0.25-0.68] and patients >65 years [aOR 0.64, 95% CI 0.42-0.96]. There was a lower risk of HZ in patients with ulcerative colitis [aOR 0.41, 95% CI 0.27-0.63] and Crohn's disease [aOR 0.44, 95% CI 0.26-0.74] in the IBD-RZV cohort compared with IBD control cohort.

Conclusion: RZV is associated with a lower long-term risk of HZ in patients ≥50 years old with IBD. Given the widespread availability and safety of RZV, more effective vaccination strategies are needed to improve RZV use in this high-risk population.

Keywords: Recombinant zoster vaccine; herpes zoster; inflammatory bowel disease.

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