Safety and Pharmacokinetics of MK-7680 in Participants With Hepatitis C (MK-7680-003)

July 24, 2015 updated by: Merck Sharp & Dohme LLC

A Multiple Dose Study to Evaluate Safety, Pharmacokinetics, and Pharmacodynamics of MK-7680 in Patients With Hepatitis C Infection

This is a two-part dose-finding trial of MK-7680 in participants with Hepatitis C Virus (HCV) infection of genotype (GT)1 (Part I) and GT3 (Part 2). The primary hypothesis is that daily administration of a safe and well tolerated dose of MK-7680 will produce a decrease in HCV viral load.

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

Parts 1 and 2 will each consist of 4 panels. In the first panel, a 200 mg dose of MK-7680 will be administered. In each of the following 3 panels, higher or lower doses of MK-7680 will be administered. Each panel will only begin once the safety and tolerability data from the preceding panel have been evaluated.

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.
13

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:

  • Is in good health except for HCV infection
  • Is male or is a female of non-childbearing potential
  • Clinical diagnosis of HCV GT1 or GT3 with no evidence of mixed-GT or non-typeable infection

Exclusion Criteria:

  • Has a history of clinically significant and not stably controlled endocrine, gastrointestinal, cardiovascular, hematological, hepatic (excepting HCV infection), immunological, renal, respiratory, genitourinary, or major neurological abnormality or disease
  • Has a history of cancer
  • Has a history of significant multiple and/or severe allergies
  • Is positive for hepatitis B or human immunodeficiency virus
  • Has had major surgery, donated or lost 1 unit (500 mL) of blood within 4 weeks prior to screening
  • Consumes more than 2 alcoholic beverages per day or is currently a regular user of any illicit drug(s) or has a history of alcohol/drug abuse within 12 months prior to screening
  • Has chronic hepatitis not caused by HCV (e.g., nonalcoholic steatohepatitis [NASH])
  • Has clinical or laboratory evidence of advanced or decompensated liver disease, or evidence of bridging or higher grade fibrosis

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: Non-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: GT1 Participants
Participants take MK-7680 capsules by mouth once daily (QD) for 7 days. The starting dose will be 200 mg and the dose will be adjusted in successive panels of participants based on analysis of results of the previous panel.
Drug: MK-7680
MK-7680 10 mg and 100 mg capsules
Experimental: GT3 Participants
Participants take MK-7680 capsules by mouth QD for 7 days. The starting dose will be 200 mg and the dose will be adjusted in successive panels of participants based on analysis of results of the previous panel.
Drug: MK-7680
MK-7680 10 mg and 100 mg capsules

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
Time Frame
Change from baseline in HCV viral load
Time Frame: Day 1: predose, 2, 4, 8, 12, and 24 hours postdose; Days 3, 4, 5, and 6: predose; and Day 7: predose, 4, 12, 24, and 48 hours postdose
Day 1: predose, 2, 4, 8, 12, and 24 hours postdose; Days 3, 4, 5, and 6: predose; and Day 7: predose, 4, 12, 24, and 48 hours postdose
Number of participants experiencing an adverse event (AE)
Time Frame: Up to 21 days
Up to 21 days
Number of participants discontinuing from study therapy due to AEs
Time Frame: Up to 7 days
Up to 7 days

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

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.
December 1, 2014

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.
February 1, 2015

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.
April 1, 2015

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).
October 16, 2014

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.
October 16, 2014

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.
October 20, 2014

Study Record Updates

Last Update Posted (Estimate)

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.
July 27, 2015

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.
July 24, 2015

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.
July 1, 2015

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.
  • 7680-003
  • 2014-003674-16 (EudraCT Number)

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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