E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Chronic Hepatitis C virus infection |
|
E.1.1.1 | Medical condition in easily understood language |
|
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 | 10008912 |
E.1.2 | Term | Chronic hepatitis C |
E.1.2 | System Organ Class | 10021881 - Infections and infestations |
|
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 | 10019754 |
E.1.2 | Term | Hepatitis cholestatic |
E.1.2 | System Organ Class | 10019805 - Hepatobiliary disorders |
|
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 |
To evaluate the efficacy of study treatment with sofosbuvir (SOF)/velpatasvir (VEL) FDC for 12 weeks as measured by the proportion of subjects with sustained virologic response 12 weeks after cessation of study treatment regimen (SVR12)
To evaluate the safety and tolerability of the study treatment regimen |
|
E.2.2 | Secondary objectives of the trial |
To determine the proportion of subjects who attain SVR at 4 weeks after cessation of the study treatment regimen (SVR4)
To evaluate the kinetics of circulating HCV RNA during study treatment and after cessation of study treatment regimen
To evaluate the emergence of viral resistance to SOF and VEL during study treatment and after cessation of study treatment regimen
|
|
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 |
Pharmacogenomics (PG) Substudy In consenting participants, blood samples will be drawn at Baseline or during the study for pharmacogenomics research. |
|
E.3 | Principal inclusion criteria |
1) Willing and able to provide written informed consent 2) Males and females, age ≥ 18 years old 3) Chronic HCV infection (≥6 months) documented pretransplantation by prior medical history or liver biopsy 4) HCV RNA ≥ 104 IU/mL at screening 5) No clinical signs of rejection for 3 months prior to the Screening visit 6) Primary or secondary (re-transplant), liver alone or liver and kidney transplant recipient from deceased or living donor (regardless of the HCV status of the liver donor) 7) Liver transplant ≥ 3 months prior to screening 8) A body mass index (BMI) of ≥ 18 kg/m2 9) Subjects must have a determination of treatment experience (see protocol for details). 10) Subjects must have appropriate testing for determination of cirrhosis status (see protocol for details). 11) Liver imaging within 6 months of Baseline/Day 1 is required in cirrhotic subjects only to exclude hepatocellular carcinoma (HCC) 12) A negative serum pregnancy test is required for female subjects (unless permanently sterile or greater than two years post-menopausal) 13) Male subjects and female subjects of childbearing potential who engage in heterosexual intercourse must agree to use protocol specified method(s) of contraception 14) Lactating females must agree to discontinue nursing before the study drug is administered 15) Subject must be able to comply with the dosing instructions for study drug administration and able to complete the study schedule of assessments |
|
E.4 | Principal exclusion criteria |
1) Multi-organ transplant that includes heart or lung recipient (patients who have their liver transplant as part of a liver-kidney dual transplant are eligible to enroll) 2) Subjects with de novo or recurrent Hepatocellular Carcinoma (HCC) posttransplant 3) Current use of corticosteroids at any dose >5mg of prednisone/day (or equivalent dose of corticosteroid) 4) Child-Pugh-Turcotte (CPT) Score >7 at Screening 5) Recipient of ABO incompatible organ 6) Histological evidence of unresolved rejection 7) Infection with hepatitis B virus (HBV) or human immunodeficiency virus (HIV) at Screening 8) Current, uncontrolled ascites, variceal hemorrhage, hepatic encephalopathy, hepatorenal syndrome, hepatopulmonary syndrome, or other signs of decompensated cirrhosis 9) Serum creatinine >2.5x upper limit of normal (ULN) or stage 4 chronic kidney disease (CrCl<30ml/min) 10) Screening ECG with clinically significant abnormalities 11) Subjects with the laboratory results (as defined in the protocol) at Screening are excluded unless enrollment is approved by the sponsor medical monitor 12) Use of GM-CSF, epoetin alfa or other therapeutic agents within 2 weeks of Screening 13) History of other clinically relevant chronic liver disease (e.g., hemochromatosis, autoimmune hepatitis, Wilson’s disease, α-1-antitrypsin deficiency, alcoholic liver disease, non-alcoholic steatohepatitis, or toxin exposure) 14) Recent (within 4 weeks of Screening) episode or infection requiring systemic antibiotics 15) Use or planned use of T-cell depleting/masking antibodies, systemic antineoplastic agents, cyclosporine >300mg/day,or use of any prohibited medications listed in Section 5.4 within 28 days of the Baseline/Day 1 visit 16) Prior exposure to any HCV NS5A inhibitor 17) History or current evidence of immunologic disorder, hemoglobinopathy, pulmonary or cardiac disease, porphyria, seizure disorder, poorly controlled diabetes, pancreatitis with elevated lipase, cancer, or a history of malignancy (with exception of certain resolved skin cancers or pre-transplant hepatocellular carcinoma; patients who received liver transplants for hepatocellular carcinoma must be 5 years post-transplant with no evidence of recurrence at Screening) that in the opinion of the investigator makes the subject unsuitable for the study 18) Treatment for HCV infection with experimental or approved regimens within 3 months of Baseline/Day 1. 19) Participation in a clinical study with an investigational drug, or biologic within 3 months prior to Baseline/Day 1 20) Clinically relevant alcohol or drug abuse within 12 months of Screening. A positive drug screen will exclude subjects unless it can be explained by prescribed medications; the diagnosis and prescription must be approved by the investigator 21) History or difficulty with blood collection and/or poor venous access for the purposes of phlebotomy 22) Known hypersensitivity to SOF (and the metabolites), and/or VEL |
|
E.5 End points |
E.5.1 | Primary end point(s) |
The primary efficacy endpoint is SVR12 (HCV RNA < LLOQ 12 weeks after cessation of study treatment regimen) in the Full Analysis Set (FAS).
The primary safety endpoint is any AE that led to permanent discontinuation of study drug. |
|
E.5.1.1 | Timepoint(s) of evaluation of this end point |
The safety and tolerability endpoints are evaluated during the course of treatment. The efficacy endpoint is evaluated 12 weeks after discontinuation of therapy. |
|
E.5.2 | Secondary end point(s) |
The secondary efficacy endpoints include the proportion of subjects who attain sustained virologic response at 4 weeks after cessation of the study treatment regimen (SVR4); the proportion of subjects who have HCV RNA < LLOQ by visit while on study treatment; absolute and change from baseline/Day 1 in HCV RNA through Week 12; and the proportion of subjects with virologic failure. |
|
E.5.2.1 | Timepoint(s) of evaluation of this end point |
The efficacy endpoints are evaluated 4 weeks after discontinuation of therapy. The other endpoints are evaluated during the course of treatment. |
|
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 | 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) | Yes |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
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 | Yes |
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 | No |
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.8.2.4 | Number of treatment arms in the trial | 1 |
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 | 6 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 17 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | No |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
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
|
|
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 | 1 |
E.8.9.1 | In the Member State concerned days | 0 |
E.8.9.2 | In all countries concerned by the trial years | 1 |
E.8.9.2 | In all countries concerned by the trial months | 1 |
E.8.9.2 | In all countries concerned by the trial days | 0 |