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A Phase III Randomized Clinical Trial to Study the Efficacy and Safety of the Combination Regimen of MK-5172/MK-8742 in Treatment-Naïve Subjects with Chronic HCV GT1, GT4, and GT6 Infection who are on Opiate Substitution Therapy.

Phase 3
Completed
Conditions
Chronic Hepatitis C
10047438
Registration Number
NL-OMON42051
Lead Sponsor
Merck Sharp & Dohme (MSD)
Brief Summary

Not available

Detailed Description

Not available

Recruitment & Eligibility

Status
Completed
Sex
Not specified
Target Recruitment
4
Inclusion Criteria

Part A:
*You are greater than or equal to 18 years of age.;*You have chronic genotype 1, 4, or 6 Hepatitis C virus. ;*You must be on opiate substitution therapy (OST), have kept at least 80% of scheduled appointments while on OST, and not missed any scheduled appointments between screening and study entry;*You have had a liver biopsy, Fibroscan, or Fibrotest to check for cirrhosis or no cirrhosis. ;*You are treatment naïve to all HCV treatment ;*You may be co-infected with HIV;Part B:
- have received at least one dose of MK-5172 in combination with MK-8742 as detailed in
Part A.
- understand the study procedures, alternative treatments available, risks involved with the
study, and voluntarily agrees to participate by giving written informed consent.

Exclusion Criteria

Deel A:
*You have signs of decompensated liver disease.;*You are coinfected with Hepatitis B virus.;*You have signs of hepatocellular carcinoma or history of malignancy.;*You are taking or plan to take any medication not allowed for this study. ;*You have a history of, or signs of, chronic hepatitis not caused by hepatitis C virus.;*You have an exclusionary laboratory value;*If you have HIV, you use HIV drugs other than a dual NNRTI backbone of tenofovir or abacavir and either emtricitabine or lamivudine PLUS raltegravir [or dolutegravir or rilpivine];*You have a history of opportunistic infection in the preceding 6 months prior to screening.;Part B:
- is mentally or legally incapacitated, has significant emotional problems at the time of
pre-study screening visit or expected during the conduct of the study or has a history
of a clinically significant psychiatric disorder which, in the opinion of the
investigator, would interfere with the study procedures.
- The subject has a medical condition or personal circumstance which, in the opinion of
the investigator and/or Sponsor, places the subject at unnecessary risk through
continued participation in the trial or does not allow the subject to adhere to the
requirements of the protocol.

Study & Design

Study Type
Interventional
Study Design
Not specified
Primary Outcome Measures
NameTimeMethod
<p>Efficacy outcome: plasma HCV RNA level following SVR12<br /><br><br /><br>Safety outcome: The safety and tolerability of MK-5172 in combination with<br /><br>MK-8742 are assessed by a clinical evaluation of adverse events and inspection<br /><br>of other study param eters including vital signs, physical examinations, etc.<br /><br><br /><br>PK outcome: C(2hr) en C(through)</p><br>
Secondary Outcome Measures
NameTimeMethod
<p>Part A: Efficacy outcome: plasma HCV RNA level following SVR4 and SVR24<br /><br>Part B: primary measurement is plasma HCV RNA, collected every 6<br /><br>months to evaluate long term durability of SVR and incidence of<br /><br>reinfection in subjects with detectable HCV RNA.</p><br>
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