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Bioequivalence Study of Crushed Elbasvir/Grazoprevir Compared to the Whole Tablet — CRUSADE-2  

Hepatitis C Clinical Trial

Official title:
Bioequivalence Study of CRUshed ElbaSvir/GrAzoprevir compareD to the wholE Tablet (CRUSADE-2)/Hep-NED005

Clinical Trial Summary

Elbasvir/grazoprevir (Zepatier®) is a once-daily tablet for the treatment of chronic hepatitis C virus (HCV) GT1a, 1b or 4 infection containing the NS5A inhibitor elbasvir (ELB) 50 mg and the NS3/4A protease inhibitor grazoprevir (GZR) 100 mg. For patients with swallowing difficulties, administration of whole tablets can be problematic. In addition, HCV patients that are hospitalized (at intensive care units) due to severe illness (co-infections/ liver failure) might not be able to swallow medication. Therefore it is useful to know whether it is possible to administer ELB/GZR through a different route, like a feeding tube. In daily practice, information about the safety and efficacy of crushed tablets is lacking which might result in noncompliance, interruption or discontinuation of expensive HCV therapy. However, it is not recommended to interrupt treatment because there is no evidence about the efficacy of the therapy after discontinuation (and restarting). Currently, patients and healthcare professionals are crushing tablets without information about efficacy and safety. Depending on the biopharmaceutical characteristics of a drug formulation, crushing tablets can lead to altered pharmacokinetics of drugs. It is important to know whether pharmacokinetic parameters are influenced by crushing of tablets; both a decrease and an increase in exposure may occur. A decrease of the plasma concentrations of ELB and/or GZR potentially reduces the therapeutic effect of the drugs. Higher doses or switching to other HCV-drugs might be needed. In contrast, in case a higher Cmax and/or AUC occurs there might be an increased risk of toxicity. As a result, crushing the drug is a contra-indication based on the available data. Therefore this study will be conducted to investigate whether a crushed ELB/GZR tablet is bioequivalent to ELB/GZR as a whole tablet.

Clinical Trial Description

n/a

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT03817619
Study type Interventional
Source Radboud University
Contact
Status Completed
Phase Phase 1
Start date March 28, 2019
Completion date July 30, 2019
View Details
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