RTCCS Radboudumc
Nijmegen, Netherlands
NCT Number: NCT03817619
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.
Looking for future studies?
Notify Me18 year–55 year
All sexes
Interventional
Phase 1
Nijmegen, Netherlands
Healthy volunteers accepted: Yes
Only the study team can determine whether someone qualifies for participation.
Inclusion criteria
Exclusion criteria
Single-dose ELB/GZR as a whole tablet in a fasted state.
Single-dose crushed ELB/GZR in a fasted state.
Time frame: 72 hours
Determination of elbasvir/grazoprevir AUC0-72h by noncompartmental analysis. Descriptive statistics for the plasma concentrations of elbasvir/grazoprevir at each sampling time. Descriptive statistics for each PK parameter per treatment (geometric mean + CV%).
Geometric Mean Ratios and 90% confidence intervals of pharmacokinetic parameters of treatment T (Test) vs. treatment R (Reference). AUC0-72h geometric mean ratios for elbasvir and grazoprevir with a 90% Cl falling entirely within the range of 0.7 to 1.43 are considered bioequivalent.
Time frame: 18 days
Determination of grazoprevir Cmax by noncompartmental analysis. Geometric Mean Ratios and 90% confidence intervals of pharmacokinetic parameters of T (Test) vs. R (Reference).
Cmax geometric mean ratios for elbasvir and grazoprevir with a 90% Cl falling entirely within the range of 0.7 to 1.43 are considered bioequivalent.
Time frame: 18 days
Adverse events after intake of elbasvir/grazoprevir tablets in healthy adult volunteers.
Radboud University Medical Center
Other
Bioequivalence Study of CRUshed ElbaSvir/GrAzoprevir compareD to the wholE Tablet (CRUSADE-2)/Hep-NED005
Acronym: CRUSADE-2
OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.
View the official ClinicalTrials.gov record (opens in a new tab)This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.
Published trials that share one or more normalized conditions with this study.
NCT03513393
Blood-Borne Infections, Communicable Diseases
Nijmegen, Gelderland, Netherlands
View Trial DetailsNCT03935906
Blood-Borne Infections, Communicable Diseases
Melbourne, Australia
View Trial DetailsNCT00004850
Blood-Borne Infections, Communicable Diseases
Bethesda, Maryland, United States
View Trial DetailsNCT05208697
Blood-Borne Infections, Communicable Diseases
Fort Lauderdale, Florida, United States
View Trial Details