E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Hepatitis C Virus Infection (HCV) |
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E.1.1.1 | Medical condition in easily understood language |
Hepatitis C Virus Infection |
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E.1.1.2 | Therapeutic area | Diseases [C] - Virus Diseases [C02] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 19.0 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10019744 |
E.1.2 | Term | Hepatitis C |
E.1.2 | System Organ Class | 10021881 - Infections and infestations |
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E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
1. Evaluate the durability of SVR in subjects who remained HCV RNA<LLoQ throughout the follow-up period of the treatment protocol and did not start any new HCV therapy between the end of the previous protocol and entry in this study
• All subjects (except subjects PN 052) with HCV RNA<LLoQ will be discontinued after the next scheduled visit. PN 052 subjects will remain for a duration of 5 years as introduced in AM02. Data collected up to a subject’s last visit will be assessed for durability. After AM03 approval, no additional subjects achieving SVR will enroll
2. Evaluate the presence of antiviral resistance, NS3/4A, NS5A and/or NS5B, (as appropriate) and determine if there is a reversion to a wild-type pattern within the 3 years (all protocols except PN 052) or 5 years timeframe for PN 052 of this long-term follow-up study
• Subjects enrolling with quantifiable HCV RNA after having failed therapy will be followed for 3 years or 5 years (PN 052)
3. Evaluate the long-term safety |
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E.2.2 | Secondary objectives of the trial |
1. To assess liver function using the MELD and/or Child-Pugh scores for all subjects
2. To assess chronic kidney disease (CKD) status by assessing change in eGFR in patients from parent PN 052
3. To assess complication of CKD by recording new onset diabetes, cryoglobulinemia, cardiovascular disease, and/or neurologic disorders (such as stroke) in patients from parent PN 052
4. To assess health outcomes by recording the occurrence of variceal bleeding, ascites, spontaneous bacterial peritonitis, encephalopathy, hepatorenal syndrome, hepatocellular carcinoma, liver/kidney transplantation, graft rejection in patient who have undergone liver/kidney transplantation |
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E.2.3 | Trial contains a sub-study | Yes |
E.2.3.1 | Full title, date and version of each sub-study and their related objectives |
Merck will conduct Future Biomedical Research on DNA (blood) specimens collected during this clinical trial. Such research is for biomarker testing to address emergent questions not described elsewhere in the protocol (as part of the main trial) and will only be conducted on specimens from appropriately consented subjects. The objective of collecting specimens for Future Biomedical Research is to explore and identify biomarkers that inform the scientific understanding of diseases and/or their therapeutic treatments. The overarching goal is to use such information to develop safer, more effective drugs, and/or to ensure that subjects receive the correct dose of the correct drug at the correct time. |
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E.3 | Principal inclusion criteria |
1. Study subjects who previously participated in a HCV treatment protocol that includes MK-5172 in the treatment regimen.
2. Subject must enroll (Visit 1) within three months of the last study visit (e.g. follow-up week 24) of their previous protocol in which they received an MK-5172 containing regimen.
Prior to Amendment 03, if a patient in a treatment protocol received extended follow-up (> or = 1 year) in the original protocol, they may enroll in this study at the final visit of the previous protocol.
3. Subject must be > or = 18 years of age and willing to give written informed consent.
4. Subjects who have consented for the trial, may also provide consent for Future Biomedical Research. However, the subject may participate in the main trial without participating in Future Biomedical Research.
5. For Amendment 03: Subjects must have received a MK-5172 containing regimen in a prior trial and have been identified as having failed therapy in that study.
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E.4 | Principal exclusion criteria |
1. In the opinion of the investigator, if a subject is mentally or legally incapacitated at entry, the subject may be excluded.
2. The subject has received HCV therapy after completion of the protocol defined MK-5172 treatment trial regimen and before or after entry into PN 017.
3. For Amendment 03: Subjects who fail therapy due to re-infection are excluded.
4. For Amendment 03: Subjects who fail therapy and receive retreatment with HCV therapy are excluded, except in the case where they were re-treated in a Merck-sponsored protocol. |
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E.5 End points |
E.5.1 | Primary end point(s) |
A primary efficacy endpoint is the durability of long-term SVR which will be evaluated based upon the time to viral relapse. Viral relapse is defined as any subject who has confirmed HCV RNA > or = LLoQ and was previously <LLoQ at end of follow-up in previous trial. Relapse would be indicated so long as this was the same genotype of the virus seen in the parent protocol (eg. not a new infection or re-infection). Time to relapse is defined as the time from last dose of study therapy taken in previous trial until the date where HCV RNA is > or = LLoQ. The percentage of subjects who remain HCV RNA < LLoQ during the course of this study will also be estimated.
In subjects with HCV RNA > or = 1000 IU/mL at entry or during the study period, HCV sequence analysis will be performed to evaluate the presence of RAVs and the persistence of RAVs over time.
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
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E.5.2 | Secondary end point(s) |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | No |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | Yes |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | No |
E.7.3 | Therapeutic confirmatory (Phase III) | Yes |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | No |
E.8.1.1 | Randomised | No |
E.8.1.2 | Open | No |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | Yes |
E.8.1.7.1 | Other trial design description |
Long term follow-up study; no therapy is being provided. |
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E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | No |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 1 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 109 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | Yes |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned |
Argentina |
Australia |
Canada |
France |
Germany |
Israel |
Italy |
New Zealand |
United States |
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E.8.7 | Trial has a data monitoring committee | No |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | |
E.8.9.1 | In the Member State concerned months | 7 |
E.8.9.1 | In the Member State concerned days | |
E.8.9.2 | In all countries concerned by the trial years | 7 |
E.8.9.2 | In all countries concerned by the trial months | 7 |
E.8.9.2 | In all countries concerned by the trial days | 16 |