A Multiple Dose Study of Grazoprevir (MK-5172) in Hepatitis C-Infected Participants (MK-5172-010)

August 16, 2018 updated by: Merck Sharp & Dohme LLC

A Multiple Dose Study to Evaluate Pharmacokinetics and Hepatitis C Virus RNA Dynamics Following Administration of MK-5172 in Hepatitis C Infected Patients

The goal of this study was to compare hepatic pharmacokinetics (PK) derived from liver tissue to plasma PK after administration of grazoprevir (MK-5172) to participants with chronic hepatitis C virus (HCV) infection. Participants will be randomized to one of four different liver ultrasound-guided Fine Needle Aspirate (FNA) schedules (at 4-, 8-, 24-, or 72-hours after the Day 7 dose).

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.
4

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 1

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 to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion criteria:

  • has a Body Mass Index (BMI) ≥18.5 kg/m² and ≤36.0 kg/m²
  • has chronic compensated, genotype 1 HCV infection
  • has no cirrhosis of the liver as confirmed by FibroSure®/Fibro Test® and/or local country procedure (e.g. transient elastography/Fibroscan)
  • does not require anticoagulants, nonsteroidal anti-inflammatory agents, and aspirin for at least fourteen (14) days preceding the initial liver biopsy and continuing throughout the entire study
  • if is a female participant of reproductive potential, is willing to use 2 medically acceptable forms of contraception for 2 weeks prior to start of treatment through 2 weeks after last study treatment
  • if is a male participant with a partner(s) of reproductive potential, is willing to use 2 medically acceptable forms of contraception from first dose to 90 days after last dose

Exclusion criteria:

  • has a history of stroke, chronic seizures, or major neurological disorder
  • has received previous treatment with a direct-acting antiviral (DAA)
  • has evidence of high grade bridging fibrosis from prior liver biopsy within 3 years of study entry
  • has evidence or history of chronic hepatitis not caused by HCV infection including but not limited to non-HCV viral hepatitis, nonalcoholic steatohepatitis (NASH), drug-induced hepatitis, or autoimmune hepatitis
  • has clinical or laboratory evidence of cirrhosis or other advanced liver disease
  • has decompensated liver disease as indicated by a history of ascites, hepatic encephalopathy, or bleeding esophageal varices
  • has been diagnosed with, or suspected of having, hepatocellular carcinoma (HCC)
  • has clinically significant abnormality on an electrocardiogram (ECG)
  • is co-infected with human immunodeficiency virus (HIV)
  • is positive for Hepatitis B surface antigen (HBsAg) or other evidence of active Hepatitis B infection
  • has a history of gastric bypass surgery, bowel resection or other disorder that may interfere with absorption
  • has a history of clinically significant uncontrolled endocrine, gastrointestinal, cardiovascular, hematological, immunological, renal, respiratory, or genitourinary abnormalities or diseases
  • has clinically significant neoplastic disease
  • uses alcohol to excess, defined as greater than 3 glasses of alcoholic beverages (1 glass is approximately equivalent to: beer [354 mL], wine [118 mL], or distilled spirits [29.5 mL]) per day
  • is a current regular user (including use of any illicit drugs) or history of drug (including alcohol) abuse within the last 3 months
  • has undergone surgery, donation of 1 unit of blood (approximately 500 mL) or participation in another investigational study within a period of 4 weeks prior to the screening visit
  • has a history of multiple and/or severe allergies, or anaphylactic reaction or intolerability to prescription or nonprescription drugs or food
  • is pregnant or lactating
  • is expecting to donate eggs or sperm

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: N/A
  • Interventional Model: Single Group 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: Grazoprevir 100 mg
Participants received GZR 100 mg once daily (q.d.) for 7 days. Liver FNA was performed on Day 7.
Drug: Grazoprevir
GZR 100 mg tablet by mouth q.d. for 7 days.
Other Names:
  • MK-5172

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
Estimated Area Under the Liver Concentration-time Curve for 24 Hours Post-dose (AUC[H]0-24hr) of Grazoprevir
Time Frame: 4, 8, and 24 hours post-dose on Day 7
Each participant was assigned to undergo Fine Needle Aspiration (FNA) to obtain liver tissue at different time points. Specifically, one participant underwent FNA at 4 hr post-dose only, another participant underwent FNA at 8 hr post-dose only, and a third participant underwent FNA at 24 hr post-dose only. (The fourth participant underwent FNA at 72 hr post-dose and therefore was not included in the calculation of AUC0-24hr.) Therefore, in calculating AUC0-24hr, there were only 3 data points: 1 data point at 4 hr post-dose, 1 data point at 8 hr post-dose, and 1 data point at 24 hr post-dose. The model assumed that drug concentration was at steady-state, and that the concentration at 24 hr post-dose was equal to the concentration at 0 hr post-dose.
4, 8, and 24 hours post-dose on Day 7
Hepatic Concentration of GZR (C[H]Xhr)
Time Frame: 4, 8, 24, and 72 hours post-dose on Day 7
C(H)Xhr of GZR was expressed as liver concentration (μmol GZR/L liver) using the concentration of the extracted liver sample (mass of the liver biopsy/0.2 mL solvent), and assuming that liver has the specific gravity of water (1 g/mL). The arithmetic mean C(H)Xhr concentration is based on the means of 4 FNA passes per participant in all 4 participants.
4, 8, 24, and 72 hours post-dose on Day 7
Apparent Terminal Hepatic Half-life (t[H]½ ) of GZR
Time Frame: 4, 8, 24, and 72 hours post-dose on Day 7
t(H)1/2 is a measure of the time required for the maximum post-dose liver concentration of GZR to decrease by 50%.
4, 8, 24, and 72 hours post-dose on Day 7

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
Plasma AUC[0-24 hr] of GZR
Time Frame: Pre-dose and 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 16, 24, 48 and 72 hours post-dose on Day 7
AUC0-24hr is a measure of the mean concentration of drug in plasma after dosing to 24 hours post-dose.
Pre-dose and 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 16, 24, 48 and 72 hours post-dose on Day 7
Maximum Plasma Concentration (Cmax) of GZR
Time Frame: Pre-dose and 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 16, 24, 48 and 72 hours post-dose on Day 7
Cmax is a measure of the maximum plasma concentration post-dose.
Pre-dose and 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 16, 24, 48 and 72 hours post-dose on Day 7
Lowest Plasma Concentration (Ctrough) of GZR
Time Frame: Pre-dose and 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 16, 24, 48 and 72 hours post-dose on Day 7
Ctrough is a measure of drug concentration 24 hours post-dose.
Pre-dose and 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 16, 24, 48 and 72 hours post-dose on Day 7
Time to Maximum Plasma Concentration (Tmax) of GZR
Time Frame: Pre-dose and 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 16, 24, 48 and 72 hours post-dose on Day 7
Tmax is a measure of time to reach maximum post-dose plasma drug concentration.
Pre-dose and 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 16, 24, 48 and 72 hours post-dose on Day 7
Plasma t½ of GZR
Time Frame: Pre-dose and 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 16, 24, 48 and 72 hours post-dose on Day 7
t1/2 is a measure of time for the maximum plasma concentration of GZR to decrease by 50%.
Pre-dose and 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 16, 24, 48 and 72 hours post-dose on Day 7

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

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.
October 1, 2013

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.
July 31, 2014

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.
July 31, 2014

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).
February 17, 2012

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.
February 17, 2012

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.
February 23, 2012

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.
September 14, 2018

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 16, 2018

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, 2018

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.
  • 5172-010
  • 2011-000435-83 (EudraCT Number)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

https://www.merck.com/clinical-trials/pdf/ProcedureAccessClinicalTrialData.pdf

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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