Abstract: FR-PO1114
Herpes Zoster and Disseminated Zoster in Lupus Nephritis: Incidence Rates in Real-World Claims Data
Session Information
- Glomerular Diseases: Clinical, Outcomes, Trials - II
October 26, 2018 | Location: Exhibit Hall, San Diego Convention Center
Abstract Time: 10:00 AM - 12:00 PM
Category: Glomerular Diseases
- 1203 Glomerular Diseases: Clinical, Outcomes, and Trials
Authors
- Belendiuk, Katherine, Genentech, South San Francisco, California, United States
- Ding, Yingjie, Genesis Research, Hoboken, New Jersey, United States
- Chawla, Devika, Genentech, South San Francisco, California, United States
- Cascino, Matthew, Genentech, South San Francisco, California, United States
Background
Herpes zoster is a highly morbid condition. Overall rates of herpes zoster in immunocompetent individuals in a claims database were 0.45 per 100 PY, with risk increasing with age [1]. Rates of herpes zoster and disseminated herpes zoster among patients with lupus nephritis (LN) have not previously been described. This study characterized rates of herpes zoster and disseminated zoster infections in patients with LN using population-based claims data.
Methods
We conducted a retrospective cohort study using the Truven Healthcare MarketScan® Commercial Claims and Encounters and Medicare Supplemental and Coordination of Benefits database between 2000 and 2014. Patients with LN were identified using modifications to a validated claims data algorithm [2]. Herpes zoster cases were identified using ICD9 codes 053.xx. All patients received medical care in the U.S. and had 6 months of continuous medical and drug coverage ± first LN diagnosis (i.e. index). End of study was the first of end of enrollment or end of database.
Results
11,068 patients with LN were identified and followed for a mean of 6.8 years (Table). Among patients with LN there were 955 incident cases of herpes zoster events reported, of which 157 (16%) were considered disseminated. Incidence rates of herpes zoster and disseminated zoster were 2.6 (95% CI 2.4 to 2.7) and 0.4 (95% CI 0.3 to 0.5) per 100 PY, respectively.
Conclusion
Patients with LN appear to be at increased risk for herpes zoster relative to the general population. A substantial minority of LN patients with herpes zoster develop dissemination. Further characterization of the relative contributions of age, immunosuppressive therapies, and disease factors is warranted.
1. Johnson BH et al. BMC Infectious Diseases, 2015;15:502.
2. Chibnik LB et al. Lupus, 2010;19:741-3.
Funding
- Commercial Support