Zepatier in Patients with Substance Use

January 23, 2025 updated by: Rodrigo Mauricio Burgos, University of Illinois at Chicago

Cohort Study of Hepatitis C Virus Treatment with Zepatier (Elbasvir/Grazoprevir) in Genotype 1 or 4 HCV Treatment-Naïve or Peginterferon/Ribavirin-Experienced Patients with Substance Use in Urban, Multidisciplinary Specialty Clinics

The goal of this study is to assess hepatitis C virus (HCV) treatment with Zepatier (elbasvir/grazoprevir) in HCV monoinfected and human immunodeficiency virus (HIV)-HCV co-infected, HCV treatment-naïve or peginterferon/ribavirin-experienced patients with HCV genotype 1a, without baseline NS5A resistance, 1b, or 4 and substance use in urban, multidisciplinary specialty clinics.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Previously, people who use substances and those without liver fibrosis or cirrhosis were excluded from receiving direct-acting antiviral (DAA) treatment due to Illinois Medicaid restrictions. These sobriety and staging restrictions were recently lifted. However, due to these previous stringent requirements for sobriety, many patients were not able to be treated for HCV. This created a data gap for real-world outcomes of HCV treatment in people who use substances. This study presents a unique opportunity to provide patients with hepatitis C treatment and obtain much needed data on the use of elbasvir/grazoprevir in patients with substance use and other underrepresented comorbidities. Additionally, this study will determine if our current standard of care for the treatment of HCV is effective for patients with substance use.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
25

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Illinois
      • Chicago, Illinois, United States, 60612
        • University of Illinois at Chicago

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

The specific patient population to be studied is HCV monoinfected and HIV-HCV co-infected, HCV treatment-naïve or peginterferon/ribavirin-experienced patients of the UI Health Infectious Disease or Liver Clinic with HCV genotype 1a, without baseline NS5A resistance, 1b, or 4 and substance use treated with 12 weeks of elbasvir/grazoprevir therapy.

Description

Inclusion Criteria:

  • Adults (at least 18 years of age or older)
  • Chronic HCV (HCV antibody positive with detectable HCV-RNA)
  • HCV genotypes 1a, without the presence of baseline NS5A resistance (specifically, polymorphisms at amino acid positions 28, 30, 31, or 93), 1b, or 4
  • HCV treatment-naïve or peginterferon/ribavirin-experienced
  • Managed by the UI Health Infectious Diseases Clinic or Liver Clinic
  • Recent or current substance use (per self-report or electronic medical record (EMR) data within 90 days of the screening visit, with or without positive baseline urine toxicology), inclusive of one or more of the following: Opiate substitution therapy; Prescription medication misuse (including: opiates, sedatives, tranquilizers, hypnotics, and psychostimulants); Illicit substances; Injection drug use; Alcohol

Exclusion Criteria:

  • Incarcerated
  • Pregnant or breastfeeding
  • Decompensated liver disease (Child-Pugh B or C)
  • Albumin below 3 g/dL
  • Platelet count below 75,000
  • Unwilling to commit to treatment and/or monitoring
  • Poor venous access inhibiting laboratory collection
  • Any condition considered by the investigators to be a contraindication to study participation
  • Hepatitis B virus (HBV) surface antigen (HBsAg) positive

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Patients living with HCV +/- HIV
HCV monoinfected and human immunodeficiency virus (HIV)-HCV co-infected, HCV treatment-naïve or peginterferon/ribavirin-experienced patients with HCV genotype 1a, without baseline NS5A resistance, 1b, or 4 and substance use treated with elbasvir/grazoprevir 50-100 mg fixed-dose-combination, 1 tablet by mouth daily, for 12 weeks.
Drug: Elbasvir/Grazoprevir 50 MG-100 MG Oral Tablet [ZEPATIER]
Daily medication
Other Names:
  • Zepatier

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
SVR - PP
Time Frame: 12 weeks after the end of therapy (SVR-12)
Proportion of patients in the per-protocol (PP) population with sustained virologic response (SVR). PP: excludes non-treatment related discontinuations and patients lost to follow-up before SVR-12 laboratory test.
12 weeks after the end of therapy (SVR-12)

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
SVR - stratified
Time Frame: 12 weeks after the end of therapy (SVR-12)

PP SVR-12 stratified by pre-specified baseline characteristics:

  • HCV monoinfection
  • HIV-HCV co-infection
  • Cirrhosis
  • Positive baseline urine toxicology
  • Men who have sex with men (MSM)
  • Commercial sex work
  • Diagnosed concomitant psychiatric disorder(s)
  • Use of concomitant medication(s)
  • Specific substance(s) used
12 weeks after the end of therapy (SVR-12)
Drug-Drug interactions (DDIs)
Time Frame: From enrollment to treatment completion or termination, which ever comes first, for up to 36 weeks
Interventions to prevent or remedy known or suspected DDIs between elbasvir/grazoprevir and concomitant prescription or over-the-counter medications, supplements, and substance of use
From enrollment to treatment completion or termination, which ever comes first, for up to 36 weeks
Adherence
Time Frame: During 12 weeks of treatment
Self-reported adherence to elbasvir/grazoprevir, reported as number of missed doses and % missed doses of total doses
During 12 weeks of treatment
SVR - ITT
Time Frame: 12 weeks after the end of therapy (SVR-12)
Proportion of patients in the intention-to-treat (ITT) population with SVR-12. ITT: all patients who received at least one dose of Zepatier (elbasvir/grazoprevir)
12 weeks after the end of therapy (SVR-12)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
University of Illinois at Chicago

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Merck Sharp & Dohme LLC

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Rodrigo Mauricio Burgos, PharmD, University of Illinois at Chicago College of Pharmacy

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
September 20, 2019

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
June 1, 2022

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
September 9, 2022

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
August 1, 2019

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 5, 2019

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
August 7, 2019

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 25, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 23, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
February 1, 2024

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 2019-0478

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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