Key clinical point: The risk for hepatitis B virus (HBV) reactivation was substantially high in patients with rheumatoid arthritis (RA) and chronic HBV infection who were treated with anti-interleukin-6 (anti-IL-6), with the risk being ~5 times higher in the absence of antiviral prophylaxis.
Major finding: The HBV reactivation rate was 6.7% in patients with chronic HBV infection, with the value further increasing to 31% in patients without antiviral prophylaxis. In patients with resolved HBV infection, the HBV reactivation rate remained ~0% irrespective of antiviral prophylaxis administration.
Study details: This meta-analysis of 19 studies included 372 anti-IL-6-treated patients with RA who had chronic (n = 41) or resolved (n = 279) HBV infection, of whom 19 patients received antiviral prophylaxis.
Disclosures: This study did not receive any funding. Two authors declared receiving honoraria, speaker fees, or research grants from or participating in advisory boards of various sources.
Source: Katelani S et al. HBV reactivation in patients with rheumatoid arthritis treated with anti-interleukin-6: A systematic review and meta-analysis. Rheumatology (Oxford). 2023;62(SI3):SI252-SI259 (Oct 23). doi: 10.1093/rheumatology/kead243