Elbasvir/Grazoprevir (EBR/GZR) and Sofosbuvir (SOF) With and Without Ribavirin (RBV) in Cirrhotic Subjects With Chronic Hepatitis C Virus (HCV) Genotype 3 (GT3) Infection (MK-5172-083)

August 5, 2019 updated by: Merck Sharp & Dohme LLC

A Phase II, Randomized, Open-Label Clinical Trial to Study the Efficacy and Safety of the Combination Regimen of Elbasvir/Grazoprevir (EBR/GZR) and Sofosbuvir (SOF) With and Without Ribavirin (RBV) in Cirrhotic Subjects With Chronic HCV GT3 Infection

This is a randomized, multi-site, open-label trial of the co-administration of a fixed-dose combination (FDC) of EBR 50 mg + GZR (100 mg) (EBR/GZR) and SOF 400 mg, with and without RBV, in treatment-naïve (TN) and treatment-experienced (TE) participants with chronic HCV GT3 infection with compensated cirrhosis.

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.

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.
Interventional

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.
101

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2

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

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • has HCV RNA (>= 10,000 IU/mL in peripheral blood) at screening
  • has documented HCV GT3 (with no evidence of non-typeable or mixed GT infection)
  • has compensated cirrhosis of the liver
  • has liver imaging within 6 months of Day 1 with no evidence of hepatocellular carcinoma (HCC)
  • is either HCV TN or TE (i.e., has documented prior virologic failure or intolerance to peg-interferon/ribavirin)
  • is otherwise healthy as determined by medical history, physical examination, electrocardiogram (ECG), and clinical laboratory measurements
  • has compensated cirrhosis of the liver
  • is TN or TE (i.e., documented prior virologic failure or intolerance to peg-interferon/ribavirin)
  • is not of reproductive potential, or agrees to not impregnate a partner or become pregnant for at least 2 weeks prior to the first dose of study drug, and for 7 months after the final dose of study drug (or longer if dictated by local regulations)

Exclusion Criteria:

  • has previously received one or more doses of a direct-acting antiviral (DAA)
  • has evidence of decompensated liver disease
  • is coinfected with hepatitis B (hepatitis B surface antigen [HBsAg] positive)
  • has a recent (within 5 years) history of malignancy or is under evaluation for HCC or other suspected malignancy
  • is currently or has participated (within past 30 days) in a study with an investigational compound
  • has clinically-relevant drug or alcohol abuse within the past 12 months of screening
  • is a female and is pregnant or breast-feeding
  • is a male whose female partner is/are pregnant
  • has any of the following:
  • organ transplants
  • poor venous access
  • history of gastric surgery or malabsorption disorder
  • current or history of clinically significant cardiac abnormalities or dysfunction
  • chronic pulmonary disease
  • hemoglobinopathy
  • history of hospitalization within 3 months prior to enrollment
  • medical or surgical condition that may result in need for hospitalization during the course of the study
  • any condition requiring, or likely to require, chronic systemic administration of corticosteroids, tumor necrosis factor (TNF) antagonists, or other immunosuppresant drugs during the course of the study
  • any condition, prestudy laboratory or ECG abnormality, or history of any illness, which could confound results of the study or pose additional risks in administering study drugs in the opinion of the investigator
  • has a life-threatening serious AE (SAE) during the screening period
  • has evidence of history of chronic hepatitis not caused by HCV

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

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
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.
Experimental: Arm 1: HCV GT3 TN EBG/GZR+SOF+RBV 8 Weeks
TN HCV GT3 participants will take 1 fixed-dose combination (FDC) tablet containing EBR 50 mg+GZR 100 mg and 1 tablet containing SOF 400 mg once-daily (q.d.) with RBV (200 mg capsules; weight-based dosing) twice-daily (b.i.d.) for 8 weeks.
Drug: Grazoprevir
GZR 100 mg is a component of the MK-5172A FDC tablet (also containing EBR 50 mg) and was taken q.d. by mouth in the morning.
Other Names:
  • MK-5172
Drug: Elbasvir
EBR 50 mg is a component of the MK-5172A FDC tablet (also containing GZR 100 mg) and was taken q.d. by mouth in the morning.
Other Names:
  • MK-8742
Drug: Ribavirin
RBV 200 mg capsules taken b.i.d. (morning and evening) by mouth at a total daily dose ranging from 800 mg to 1400 mg (total daily dose was based on participant body weight).
Other Names:
  • Rebetol®
Drug: Sofosbuvir
SOF 400 mg tablet taken q.d. by mouth in the morning with food.
Other Names:
  • Sovaldi®, Harvoni®
Experimental: Arm 2: HCV GT3 TN EBG/GZR+SOF 12 Weeks
TN HCV GT3 participants will take 1 FDC tablet containing EBR 50 mg+GZR 100 mg and 1 tablet containing SOF 400 mg q.d. for 12 weeks.
Drug: Grazoprevir
GZR 100 mg is a component of the MK-5172A FDC tablet (also containing EBR 50 mg) and was taken q.d. by mouth in the morning.
Other Names:
  • MK-5172
Drug: Elbasvir
EBR 50 mg is a component of the MK-5172A FDC tablet (also containing GZR 100 mg) and was taken q.d. by mouth in the morning.
Other Names:
  • MK-8742
Drug: Sofosbuvir
SOF 400 mg tablet taken q.d. by mouth in the morning with food.
Other Names:
  • Sovaldi®, Harvoni®
Experimental: Arm 3: HCV GT3 TE EBG/GZR+SOF 12 Weeks
TE HCV GT3 participants will take 1 FDC tablet containing EBR 50 mg+GZR 100 mg and 1 tablet containing SOF 400 mg q.d. for 12 weeks.
Drug: Grazoprevir
GZR 100 mg is a component of the MK-5172A FDC tablet (also containing EBR 50 mg) and was taken q.d. by mouth in the morning.
Other Names:
  • MK-5172
Drug: Elbasvir
EBR 50 mg is a component of the MK-5172A FDC tablet (also containing GZR 100 mg) and was taken q.d. by mouth in the morning.
Other Names:
  • MK-8742
Drug: Sofosbuvir
SOF 400 mg tablet taken q.d. by mouth in the morning with food.
Other Names:
  • Sovaldi®, Harvoni®
Experimental: Arm 4: HCV GT3 TE EBG/GZR+SOF+RBV 12 Weeks
TE HCV GT3 participants will take 1 FDC tablet containing EBR 50 mg+GZR 100 mg and 1 tablet containing SOF 400 mg q.d. with RBV (200 mg capsules; weight-based dosing) b.i.d. for 12 weeks.
Drug: Grazoprevir
GZR 100 mg is a component of the MK-5172A FDC tablet (also containing EBR 50 mg) and was taken q.d. by mouth in the morning.
Other Names:
  • MK-5172
Drug: Elbasvir
EBR 50 mg is a component of the MK-5172A FDC tablet (also containing GZR 100 mg) and was taken q.d. by mouth in the morning.
Other Names:
  • MK-8742
Drug: Ribavirin
RBV 200 mg capsules taken b.i.d. (morning and evening) by mouth at a total daily dose ranging from 800 mg to 1400 mg (total daily dose was based on participant body weight).
Other Names:
  • Rebetol®
Drug: Sofosbuvir
SOF 400 mg tablet taken q.d. by mouth in the morning with food.
Other Names:
  • Sovaldi®, Harvoni®
Experimental: Arm 5: HCV GT3 TE EBG/GZR+SOF 16 Weeks
TE HCV GT3 participants will take 1 FDC tablet containing EBR 50 mg+GZR 100 mg and 1 tablet containing SOF 400 mg q.d. for 16 weeks.
Drug: Grazoprevir
GZR 100 mg is a component of the MK-5172A FDC tablet (also containing EBR 50 mg) and was taken q.d. by mouth in the morning.
Other Names:
  • MK-5172
Drug: Elbasvir
EBR 50 mg is a component of the MK-5172A FDC tablet (also containing GZR 100 mg) and was taken q.d. by mouth in the morning.
Other Names:
  • MK-8742
Drug: Sofosbuvir
SOF 400 mg tablet taken q.d. by mouth in the morning with food.
Other Names:
  • Sovaldi®, Harvoni®

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
Percentage of Participants Achieving SVR12 (Sustained Virologic Response 12 Weeks After the End of All Study Therapy)
Time Frame: Up to Week 28
The percentage of participants achieving SVR12 (i.e., HCV ribnonucleic acid [RNA] < Lower Limit of Quantification [LLOQ] 12 weeks after completing study treatment) was determined. Plasma HCV RNA levels were determined with the COBAS™ AmpliPrep/COBAS™ Taqman™ HCV Test, v2.0 ® assay, which has a LLOQ of 15 IU/mL.
Up to Week 28
Percentage of Participants Experiencing an Adverse Event (AE)
Time Frame: Up to 18 weeks (up to 2 weeks after completion of study treatment)
An AE is defined as any untoward medical occurrence in a participant administered a pharmaceutical product and which does not necessarily have to have a causal relationship with this treatment.
Up to 18 weeks (up to 2 weeks after completion of study treatment)
Percentage of Participants Discontinuing From Study Therapy Due to an AE
Time Frame: Up to 16 weeks
An AE is defined as any untoward medical occurrence in a participant administered a pharmaceutical product and which does not necessarily have to have a causal relationship with this treatment.
Up to 16 weeks

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
Percentage of Participants Achieving SVR24 (Sustained Virologic Response 24 Weeks After the End of All Study Therapy)
Time Frame: Up to Week 40
The percentage of participants achieving SVR24 (i.e., HCV RNA < LLOQ 24 weeks after completing study treatment) was determined. Plasma HCV RNA levels were determined with the COBAS™ AmpliPrep/COBAS™ Taqman™ HCV Test, v2.0 ® assay, which has a LLOQ of 15 IU/mL.
Up to Week 40

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.
Merck Sharp & Dohme LLC

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.

General Publications

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.
January 5, 2016

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.
October 18, 2016

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.
January 6, 2017

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).
November 9, 2015

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.
November 9, 2015

First Posted (Estimate)

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.
November 10, 2015

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.
August 13, 2019

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.
August 5, 2019

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.
August 1, 2019

More Information

Terms related to this study

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.
  • 5172-083
  • 2015-003187-37 (EudraCT Number)
  • MK-5172-083 (Other Identifier: Merck Protocol Number)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

http://engagezone.msd.com/doc/ProcedureAccessClinicalTrialData.pdf

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.

Yes

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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