1
|
Berger JS, Ashton V, Laliberté F, Germain G, Bookhart B, Lejeune D, Boudreau J, Lefebvre P, Weir MR. Healthcare Resource Utilization and Costs of Rivaroxaban Versus Warfarin Among Non-valvular Atrial Fibrillation (NVAF) Patients with Diabetes in a US Population. Adv Ther 2023; 40:1224-1241. [PMID: 36658454 PMCID: PMC9988717 DOI: 10.1007/s12325-022-02422-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 12/22/2022] [Indexed: 01/20/2023]
Abstract
INTRODUCTION The healthcare resource utilization (HRU) and costs of oral anticoagulant-naïve patients with non-valvular atrial fibrillation (NVAF) and diabetes initiated on rivaroxaban or warfarin in the United States (US) has not been previously evaluated. METHODS This retrospective study used data from the Optum's de-identified Clinformatics® Data Mart Database (1 January, 2012 to 30 September, 2021) to evaluate the HRU and costs of adult patients with NVAF and diabetes newly initiated on rivaroxaban or warfarin (on or after January 2013). Inverse probability of treatment weighting (IPTW) was used to adjust for confounding between cohorts. HRU and costs (USD 2021) were assessed per patient-year (PPY) post-treatment initiation. Weighted cohorts were compared using rate ratios (RR) from Poisson regression models, odds ratios (OR) from logistic regression models, and cost differences; 95% confidence intervals (CI) and p values were generated using non-parametric bootstrap procedures. RESULTS After IPTW, 17,881 and 19,274 patients initiated on rivaroxaban and warfarin were included, respectively (mean age: 73 years; 40% female). During 12 months of follow-up, the rivaroxaban cohort had lower all-cause HRU PPY across all components, including lower rates of inpatient stays (RR: 0.84, 95% CI 0.81, 0.88), outpatient visits (RR: 0.67, 95% CI 0.66, 0.68), and 30 day hospital readmission (OR: 0.75, 95% CI 0.66, 0.83; all p < 0.001) compared to the warfarin cohort. Moreover, rivaroxaban was associated with medical cost savings PPY (mean cost difference: - $9306, 95% CI - $11,769, - $6607), which compensated for higher pharmacy costs relative to warfarin (mean cost difference: $5518, 95% CI $5193, $5839), resulting in significantly lower all-cause total healthcare costs for rivaroxaban versus warfarin (mean cost difference: - $3788, 95% CI - $6258, - $1035; all p < 0.001). CONCLUSION Among NVAF patients with diabetes in a real-world US setting, rivaroxaban was associated with lower healthcare costs compared to warfarin.
Collapse
Affiliation(s)
| | | | - François Laliberté
- Groupe d'analyse, Ltée, 1190 avenue des Canadiens-de-Montréal, Tour Deloitte, Suite 1500, Montreal, QC, H3B 0G7, Canada
| | - Guillaume Germain
- Groupe d'analyse, Ltée, 1190 avenue des Canadiens-de-Montréal, Tour Deloitte, Suite 1500, Montreal, QC, H3B 0G7, Canada.
| | | | - Dominique Lejeune
- Groupe d'analyse, Ltée, 1190 avenue des Canadiens-de-Montréal, Tour Deloitte, Suite 1500, Montreal, QC, H3B 0G7, Canada
| | - Julien Boudreau
- Groupe d'analyse, Ltée, 1190 avenue des Canadiens-de-Montréal, Tour Deloitte, Suite 1500, Montreal, QC, H3B 0G7, Canada
| | - Patrick Lefebvre
- Groupe d'analyse, Ltée, 1190 avenue des Canadiens-de-Montréal, Tour Deloitte, Suite 1500, Montreal, QC, H3B 0G7, Canada
| | - Matthew R Weir
- University of Maryland School of Medicine, Baltimore, MD, USA
| |
Collapse
|
2
|
Weir MR, Chen YW, He J, Bookhart B, Campbell A, Ashton V. Healthcare Resource Utilization and Costs of Rivaroxaban Versus Warfarin Among Nonvalvular Atrial Fibrillation Patients with Obesity and Diabetes. Diabetes Ther 2021; 12:3167-3186. [PMID: 34699020 PMCID: PMC8586051 DOI: 10.1007/s13300-021-01161-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 09/21/2021] [Indexed: 11/30/2022] Open
Abstract
INTRODUCTION Nonvalvular atrial fibrillation (NVAF) is associated with a substantial economic burden, particularly in patients with comorbid conditions. This study compared healthcare resource utilization (HRU) and costs of rivaroxaban and warfarin in patients with NVAF, obesity, and diabetes. METHODS A de-identified healthcare claims database was used to identify adult patients newly initiating rivaroxaban or warfarin and having at least one medical claim with a diagnosis of AF, obesity determined by validated algorithm, and at least one claim with a diagnosis of diabetes or for antidiabetic medication from December 2011 to March 2020. Propensity score matching was used to balance the treatment cohorts on the basis of demographics and baseline characteristics. All-cause and NVAF-related HRU rates and costs were compared between treatments using rate ratios, and mean cost differences were calculated on a per patient per year (PPPY) basis. RESULTS A total of 9999 matched pairs of patients with NVAF, obesity, and diabetes were identified in the rivaroxaban and warfarin cohorts. Rate ratios of all-cause HRU were significantly reduced with rivaroxaban versus warfarin in all healthcare settings evaluated, except emergency room visits. The greatest impact was on physician office visits followed by hospital outpatient and inpatient visits. NVAF-related HRU was significantly lower for rivaroxaban versus warfarin in all care settings. Consistent with these findings, the length of hospital stay was significantly reduced by approximately 4 days among all patients for both all-cause and NVAF-related hospitalizations in the rivaroxaban cohort compared with the warfarin cohort. Rivaroxaban was associated with reductions in all-cause total healthcare costs by more than $5000 PPPY and NVAF-related medical costs by approximately $1100 PPPY. CONCLUSION In comparison with warfarin, rivaroxaban reduced HRU and costs, particularly hospital inpatient and outpatient visits and physician office visits, in patients with NVAF and comorbidities of obesity and diabetes.
Collapse
Affiliation(s)
- Matthew R Weir
- University of Maryland School of Medicine, 22 S. Greene St., Room N3W143, Baltimore, MD, 21201, USA.
| | - Yen-Wen Chen
- Janssen Scientific Affairs, LLC, Titusville, NJ, USA
| | - Jinghua He
- Janssen Scientific Affairs, LLC, Titusville, NJ, USA
| | | | | | | |
Collapse
|
3
|
Laliberté F, Ashton V, Kharat A, Lejeune D, Moore KT, Jung Y, Lefebvre P, Berger JS. Economic burden of rivaroxaban and warfarin among nonvalvular atrial fibrillation patients with obesity and polypharmacy. J Comp Eff Res 2021; 10:1235-1250. [PMID: 34378989 DOI: 10.2217/cer-2021-0150] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: Evaluate healthcare resource utilization (HRU) and costs associated with rivaroxaban and warfarin among nonvalvular atrial fibrillation (NVAF) patients with obesity and polypharmacy. Materials & methods: IQVIA PharMetrics® Plus (January 2010-September 2019) data were used to identify NVAF patients with obesity (BMI ≥30 kg/m2) and polypharmacy (≥5 medications) initiated on rivaroxaban or warfarin. Weighted rate ratios and cost differences were evaluated post-treatment initiation. Results: Rivaroxaban was associated with significantly lower rates of HRU, including hospitalization (rate ratio [95% CI]: 0.83 [0.77, 0.92]). Medical costs were reduced in rivaroxaban users (difference [95% CI]: -US$6868 [-US$10,628, -US$2954]), resulting in significantly lower total healthcare costs compared with warfarin users (difference [95% CI]: -US$4433 [-US$8136, -US$582]). Conclusion: Rivaroxaban was associated with lower HRU and costs compared with warfarin among NVAF patients with obesity and polypharmacy in commercially insured US patients.
Collapse
Affiliation(s)
| | | | - Akshay Kharat
- Janssen Scientific Affairs, LLC, Titusville, NJ 08560, USA
| | | | | | - Young Jung
- Groupe d'analyse Ltée, Montréal, QC H3B 0G7, Canada
| | | | | |
Collapse
|