| E.1 Medical condition or disease under investigation |
| E.1.1 | Medical condition(s) being investigated |
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| E.1.1.1 | Medical condition in easily understood language |
| A viral infection affecting the liver |
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| E.1.1.2 | Therapeutic area | Diseases [C] - Virus Diseases [C02] |
| MedDRA Classification |
| 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 |
| The main aims of the study are to evaluate the safety and effectiveness of the study drug MK-5172/ MK-8472 (MK-5172A) at reducing the level of detectable genetic material specific to hepatitis C virus (HCV RNA) present in the blood. Success of the treatment will be based on the levels of HCV RNA in the blood 12 weeks after the end of treatment. |
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| E.2.2 | Secondary objectives of the trial |
| •To evaluate the effectiveness of MK-5172/MK-8742 by measuring the levels of HCV RNA in the blood 24 weeks after the end of treatment. |
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| E.2.3 | Trial contains a sub-study | No |
| E.3 | Principal inclusion criteria |
1.≥18 years of age on day of signing informed consent. 2.HCV RNA (≥ 10,000 IU/mL in peripheral blood) at the time of screening. 3.documented chronic HCV GT1, GT4 and/or GT6 4.HCV treatment status that is one of the following: HCV Treatment Naïve or HCV Treatment experienced (non DAA treatment) 5.have a diagnosis of Sickle Cell (SS) Disease, β-Thalassemia or Hemophilia A or B or Von Willebrand disease |
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| E.4 | Principal exclusion criteria |
1. Evidence of decompensated liver disease. 2. Coinfection with hepatitis B virus (e.g. HBsAg positive). 3. Prior treatment (defined as 1 dose or more) with direct acting antivirals (DAA) therapy. 4. History of malignancy ≤5 years 5. Evidence of hepatocellular carcinoma (HCC) 6. Has a condition or prestudy laboratory abnormality or history of any illness which might confound the results of the study or pose additional risk to the patient 7. History of chronic hepatitis not caused by HCV, 8. Exclusionary laboratory values
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| E.5 End points |
| E.5.1 | Primary end point(s) |
•The primary efficacy endpoint will be the SVR12 rate of the subjects in the immediate treatment arm. •The primary PK endpoints for MK-5172 and MK-8742 are C2hr and Ctrough. Additional PK parameters such as AUC0-24 may be calculated using population pharmacokinetic modeling approaches.
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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) |
| •The secondary efficacy endpoint is the SVR24 rate of the subjects in the immediate treatment arm. |
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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 | Yes |
| E.6.7 | Pharmacodynamic | Yes |
| 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 | Yes |
| E.8.1.1 | Randomised | Yes |
| E.8.1.2 | Open | No |
| E.8.1.3 | Single blind | No |
| E.8.1.4 | Double blind | Yes |
| E.8.1.5 | Parallel group | No |
| E.8.1.6 | Cross over | No |
| E.8.1.7 | Other | No |
| E.8.2 | Comparator of controlled trial |
| E.8.2.1 | Other medicinal product(s) | No |
| E.8.2.2 | Placebo | Yes |
| E.8.2.3 | Other | No |
| E.8.2.4 | Number of treatment arms in the trial | 2 |
| 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 | 2 |
| E.8.5 | The trial involves multiple Member States | Yes |
| E.8.5.1 | Number of sites anticipated in the EEA | 15 |
| 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 |
| Australia |
| Canada |
| Israel |
| New Zealand |
| United States |
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| E.8.7 | Trial has a data monitoring committee | Yes |
| 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 | 1 |
| E.8.9.1 | In the Member State concerned months | 7 |
| E.8.9.1 | In the Member State concerned days | 6 |
| E.8.9.2 | In all countries concerned by the trial months | 18 |