Sirolimus Use in Liver Transplant Recipients With Hepatocellular Carcinoma: A Randomized, Multicenter, Open-Label Phase 3 Trial
- PMID: 26555945
- PMCID: PMC4683033
- DOI: 10.1097/TP.0000000000000965
Sirolimus Use in Liver Transplant Recipients With Hepatocellular Carcinoma: A Randomized, Multicenter, Open-Label Phase 3 Trial
Abstract
Background: We investigated whether sirolimus-based immunosuppression improves outcomes in liver transplantation (LTx) candidates with hepatocellular carcinoma (HCC).
Methods: In a prospective-randomized open-label international trial, 525 LTx recipients with HCC initially receiving mammalian target of rapamycin inhibitor-free immunosuppression were randomized 4 to 6 weeks after transplantation into a group on mammalian target of rapamycin inhibitor-free immunosuppression (group A: 264 patients) or a group incorporating sirolimus (group B: 261). The primary endpoint was recurrence-free survival (RFS); intention-to-treat (ITT) analysis was conducted after 8 years. Overall survival (OS) was a secondary endpoint.
Results: Recurrence-free survival was 64.5% in group A and 70.2% in group B at study end, this difference was not significant (P = 0.28; hazard ratio [HR], 0.84; 95% confidence interval [95% CI], 0.62; 1.15). In a planned analysis of RFS rates at yearly intervals, group B showed better outcomes 3 years after transplantation (HR, 0.7; 95% CI, 0.48-1.00). Similarly, OS (P = 0.21; HR, 0.81; 95% CI, 0.58-1.13) was not statistically better in group B at study end, but yearly analyses showed improvement out to 5 years (HR, 0.7; 95% CI, 0.49-1.00). Interestingly, subgroup (Milan Criteria-based) analyses revealed that low-risk, rather than high-risk, patients benefited most from sirolimus; furthermore, younger recipients (age ≤60) also benefited, as well sirolimus monotherapy patients. Serious adverse event numbers were alike in groups A (860) and B (874).
Conclusions: Sirolimus in LTx recipients with HCC does not improve long-term RFS beyond 5 years. However, a RFS and OS benefit is evident in the first 3 to 5 years, especially in low-risk patients. This trial provides the first high-level evidence base for selecting immunosuppression in LTx recipients with HCC.
Trial registration: ClinicalTrials.gov NCT00355862.
Figures
Comment in
-
Killing Two Birds With One Stone: Antineoplastic Immunosuppression.Transplantation. 2016 Jan;100(1):14-5. doi: 10.1097/TP.0000000000001035. Transplantation. 2016. PMID: 26647108 No abstract available.
-
Mammalian Target of Rapamycin Inhibitors Against Hepatocellular Carcinoma Recurrence After Liver Transplantation.Transplantation. 2016 Aug;100(8):e43-4. doi: 10.1097/TP.0000000000001256. Transplantation. 2016. PMID: 27306530 No abstract available.
-
The Authors' Reply.Transplantation. 2016 Aug;100(8):e44-5. doi: 10.1097/TP.0000000000001255. Transplantation. 2016. PMID: 27362305 No abstract available.
References
-
- Llovet JM, Burroughs A, Bruix J. Hepatocellular carcinoma. Lancet. 2003; 362: 1907– 1917. - PubMed
-
- Mazzaferro V, Regalia E, Doci R, et al. Liver transplantation for the treatment of small hepatocellular carcinomas in patients with cirrhosis. N Engl J Med. 1996; 334: 693– 699. - PubMed
-
- Yao FY, Ferrell L, Bass NM, et al. Liver transplantation for hepatocellular carcinoma: expansion of the tumor size limits does not adversely impact survival. Hepatology. 2001; 33: 1394– 1403. - PubMed
-
- Mazzaferro V, Llovet JM, Miceli R, et al. Predicting survival after liver transplantation in patients with hepatocellular carcinoma beyond the Milan criteria: a retrospective, exploratory analysis. Lancet Oncol. 2009; 10: 35– 43. - PubMed
-
- Penn I. Cancers complicating organ transplantation. N Engl J Med. 1990; 323: 1767– 1769. - PubMed
Publication types
MeSH terms
Substances
Associated data
LinkOut - more resources
Full Text Sources
Other Literature Sources
Medical
Miscellaneous
