English, Article edition: An Economic Model of 2-Hour Post-Dose Ciclosporin Monitoring in Renal Transplantation Paul A. Keown; Bryce Kiberd; Robert Balshaw; ...

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Physical Description
  • article
Language
  • English

Edition details

Title
  • An Economic Model of 2-Hour Post-Dose Ciclosporin Monitoring in Renal Transplantation
Author
  • Paul A. Keown
  • Bryce Kiberd
  • Robert Balshaw
  • Shideh Khorasheh
  • Carlo Marra
  • Philip Belitsky
  • Zoltan Kalo
Physical Description
  • article
Notes
  • Background: Monitoring of microemulsion ciclosporin (cyclosporine; Neoral(R)) by 2-hour post-dose drug concentrations (C2) is an accurate measure of ciclosporin absorption efficiency and exposure, and appears superior to trough (C0) monitoring for prediction of rejection risk. A predictive decision model was used to determine if this approach also reduces total treatment costs in the first 12 months after renal transplantation. Methods: Parameter estimates for key clinical events were derived from the literature and from prospective pharmacokinetic studies comprising 234 adult HLA-non-identical renal graft recipients at seven Canadian centres. Patients were treated with microemulsion ciclosporin (Neoral(R)), corticosteroids and azathioprine or mycophenolate mofetil. Using the perspective of the Canadian healthcare provider, total treatment costs for the C2 versus the C0 strategy were modelled over 12 months, and then remodelled using conservative estimates to extend the timeframe to 5 years. Health resources were valued in 1999 Canadian dollars. Results: The incidence of acute rejection was estimated to be 25% at 1 year in patients monitored by C0 and 18% in those monitored by C2. Patient survival was considered to be independent of monitoring strategy, and graft loss was predicted to be 1.4% lower in the C2 group. The studies suggested no important differences in comorbidity and the costs of C0 and C2 monitoring and ambulatory-based adverse events were held equivalent. Using these inputs, the average cost per patient for the first year post-transplant was $Can46 Conclusions: Compared with traditional trough concentration monitoring, ciclosporin monitoring at 2 hours post-dose produced a predicted saving of $Can1551 during the first year after renal transplant. Although modelling assumptions become more restrictive over time, this projection allows a preliminary assessment of the long-term economic impact of the routine use of C2 monitoring.
  • Ciclosporin, Ciclosporin, Cost-analysis, Drug-monitoring, Renal-transplant-rejection
  • RePEc:wkh:phecon:v:22:y:2004:i:10:p:621-632
Language
  • English
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