학술논문

Conversion from twice-daily everolimus to once-daily sirolimus in long-term stable liver transplant recipients.
Document Type
Academic Journal
Author
Dumortier J; Department of Digestive Diseases, Edouard Herriot Hospital, and University of Lyon 1 Claude Bernard, Lyon, France. Electronic address: jerome.dumortier@chu-lyon.fr.; Boillot O; Department of Digestive Diseases, Edouard Herriot Hospital, and University of Lyon 1 Claude Bernard, Lyon, France.
Source
Publisher: Elsevier Country of Publication: Netherlands NLM ID: 9309923 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1878-5492 (Electronic) Linking ISSN: 09663274 NLM ISO Abbreviation: Transpl Immunol Subsets: MEDLINE
Subject
Language
English
Abstract
Background: After organ transplantation, strategies for simplifying the therapeutic regimen may improve adherence and prevent acute organ rejection and/or late graft loss. The present study aimed to evaluate the safety and efficacy of conversion from everolimus (EVR) twice daily to sirolimus (SIR) once daily in a large cohort of liver transplantation (LT) patients.
Methods: We included 108 LT patients with at least 12 months of post-transplant follow-up and no rejection episodes in the last year. Conversion was based on a 1:1 ratio (but eventually adapted to available formulations of SIR).
Results: The median age at the time of conversion was 68.9 years (range: 26.1-83.6); 75.0% were men. The main indications for mTOR inhibitor use were renal failure (38.9%) and/or a history of malignancy (37.0%). Median conversion time after LT was 14.8 years (range: 2.3-31.5). The median dose of EVR and SIR (initially) was 1.50 mg/day (range: 0.5-4.5). The mean follow-up after conversion was 15.8±4.4 months. Median serum EVR/SIR trough levels before/after conversion were 3.85 ng/mL vs. 6.32 ng/mL (p < 0.05), i.e. a 1:1.64 ratio. At the end of follow-up after conversion, the median dose of SIR was 1.25 mg/day (range: 0.5-3.5), and the mean serum SIR trough level was 5.23 ng/mL; 9 patients (8.3%) had returned to EVR, because of side effects (mainly digestive), that resolved thereafter. No biopsy-proven acute rejection episode was observed. Finally, 87.1% of patients considered the conversion beneficial and the cost was reduced by 50.3%.
Conclusion: The results of our study indicate that conversion from once-daily EVR to once-daily SIR in stable LT patients is safe, but needs dose adaptations and careful monitoring.
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