Alisporivir (INN), or Debio 025, DEB025, (or UNIL-025) is a cyclophilin inhibitor. Its structure is reminiscent of and synthesized from ciclosporin.
It inhibits cyclophilin A. Alisporivir is not immunosuppressive.
It is being researched for potential use in the treatment of hepatitis C.Flisiak R, Horban A, Gallay P, et al. The cyclophilin inhibitor Debio-025 shows potent anti-hepatitis C effect in patients coinfected with hepatitis C and human immunodeficiency virus. Hepatology. 2008;47(3):817-826. doi:10.1002/hep.22131Flisiak R, Feinman SV, Jablkowski M, et al. The cyclophilin inhibitor Debio 025 combined with PEG IFNalpha2a significantly reduces viral load in treatment-naïve hepatitis C patients. Hepatology. 2009;49(5):1460-1468. doi:10.1002/hep.22835Buti M, Flisiak R, Kao JH, et al. Alisporivir with peginterferon/ribavirin in patients with chronic hepatitis C genotype 1 infection who failed to respond to or relapsed after prior interferon-based therapy: FUNDAMENTAL, a Phase II trial. J Viral Hepat. 2015;22(7):596-606. doi:10.1111/jvh.12360Pawlotsky JM, Flisiak R, Sarin SK, et al. Alisporivir plus ribavirin, interferon free or in combination with pegylated interferon, for hepatitis C virus genotype 2 or 3 infection. Hepatology. 2015;62(4):1013-1023. doi:10.1002/hep.27960Zeuzem S, Flisiak R, Vierling JM, et al. Randomised clinical trial: alisporivir combined with peginterferon and ribavirin in treatment-naïve patients with chronic HCV genotype 1 infection (ESSENTIAL II). Aliment Pharmacol Ther. 2015;42(7):829-844. doi:10.1111/apt.13342 It has also been investigated for Duchenne muscular dystrophy and may have therapeutic potential in Alzheimer's disease.
Alisporivir is under development by Debiopharm for Japan and by Novartis for the rest of the world (licence granted by Debiopharm) since February 2010.
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