Completion and adverse drug events of latent tuberculosis infection treatment in patients receiving dialysis: predictors and impacts of different regimens in a prospective cohort study
Objectives: Although patients with end-stage renal disease receiving maintenance hemodialysis are at high risk for tuberculosis, the optimal treatment regimen for latent tuberculosis infection (LTBI) in this group has scarcely been studied for predictors of completion rate and adverse drug events (ADE). Methods: We prospectively enrolled dialysis patients for LTBI intervention from three medical centers in Taiwan. LTBI treatments were three-month weekly rifapentine plus isoniazid (3HP) and nine-month daily isoniazid (9H). Completion rate, ADE, and reasons for treatment termination were recorded. Factors associated with treatment termination and ADE were analyzed using multivariate logistic regression. Results: In all, 91 treatment courses (41 9H and 50 3HP) were surveyed. The completion rates were 61% for 9H and 82% for 3HP (p=0.046). Use of 9H and development of ≥grade 2 ADEs were associated with treatment termination. Hypersensitivity occurred in 29.2% of subjects in the 3HP group and 10.8% in the 9H group (p=0.035) and independently correlated with 3HP regimen, diabetes mellitus (DM) and peritoneal dialysis (PD). Similarly, the independent predictors of ≥grade 2 ADEs were use of 3HP regimen, presence of DM, and use of PD, whereas ≥grade 3 ADEs were associated with eosinophil >700/mm3 after 2 weeks of LTBI treatment even after adjustment for age and gender. Conclusions: For patients on dialysis, 3HP showed a higher rate of completion but also a higher rate of ≥grade 2 ADE than 9H. In addition, DM and PD were risk for ≥grade 2 ADE. Eosinophilia after 2-week treatment might be an alert for severe ADE.