3-year Follow-up Study in Patients Previously Treated With TMC435-Containing Regimen for the Treatment of Hepatitis C Virus Infection

Study Overview
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Brief Summary
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The purpose of this study is to investigate durability of SVR in chronic HCV patients who achieved SVR in the previous study with TMC435-containing regimen and time for resistance associated mutations to return to baseline in chronic HCV patients who did not achieve SVR in the previous study with TMC435-containing regimen.

Detailed Description
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This is a 3-year follow-up study in patients who completed the last post-therapy follow-up visit of the previous Phase IIb [NCT00882908, NCT00980330] or Phase III [NCT01289782, NCT01290679, NCT01281839] study in which they received TMC435, in combination with pegylated interferon and ribavirin, for the treatment of hepatitis C infection. The entire study duration for each patients will be approximately 36 months. The medical follow-up of the patients will be performed according to the local standard of care. This study will evaluate the levels of hepatitis C virus in the blood circulation, as well as safety and alpha-fetoprotein testing and the change in sequence of HCV NS3/4A region over time in patients with confirmed detectable HCV RNA at last post-therapy follow-up visit of the previous TMC435 study. In this study the development of liver disease progression will also be assessed. No medication will be administered in this study.

Official Title
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A Prospective 3-Year Follow-up Study in Subjects Previously Treated in a Phase IIb or Phase III Study With a TMC435-Containing Regimen for the Treatment of Hepatitis C Virus (HCV) Infection

Conditions
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Hepatitis C

Intervention / Treatment
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* Drug: No treatment


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Have previously participated in a Phase IIb or Phase III study Must have received at least one dose of TMC435 in that study Has completed the last post-therapy follow-up visit of the previous (LPVPS) study Exclusion Criteria: Must be currently enrolled or plan to enroll in another study with an investigational drug or invasive investigational medical device Have received antiviral or immunomodulating treatment, including therapeutic vaccines, for hepatitis C virus (HCV) between LPVPS and the screening visit of present study

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Other
Allocation: Non-Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Other: Group 1: TMC 435 - Patients With SVR at LPVPS<br>Patients with sustained virologic response (SVR) who completed last post-therapy follow-up visit of the previous study (LPVPS) [Phase IIb or Phase III] in which they received a TMC435-containing regimen for the treatment of HCV infection. | Drug: No treatment<br>* No treatment was given to patients during this study as this is a follow-up study of previous Phase IIb or Phase III in which they received a TMC435-containing regimen.<br>|
| Other: Group 2: TMC 435 - Patients With No SVR at LPVPS<br>Patients with no sustained virologic response (SVR) who completed last post-therapy follow-up visit of the previous study (LPVPS) [Phase IIb or Phase III] in which they received a TMC435-containing regimen for the treatment of HCV infection. | Drug: No treatment<br>* No treatment was given to patients during this study as this is a follow-up study of previous Phase IIb or Phase III in which they received a TMC435-containing regimen.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Percentage of Participants Maintaining SVR at the Last Available Visit | The SVR rate is the proportion (%) of participants with HCV RNA less than (<) 25 International Units/milliliter (IU/mL). | Last Available Visit (Month 36 for subjects completing the study) | 
| Overall Percentage of Participants With Change in Sequence of HCV NS3/4A Region Over Time in Participants With Confirmed Detectable HCV RNA at the Last Visit of the Previous Study | Sequencing was performed to assess changes in the sequence of the HCV NS3/4A protein region over time in participants with no SVR at LPVPS (ie confirmed detectable HCV RNA at the last visit of the previous study). EOS defined as last available sequencing sample. AEM and NEM represents any emerging mutation and no emerging mutation at time of failure of the previous study. | Baseline and Month 36 | 
| Percentage of Participants With Change in Sequence of HCV NS3/4A Region Over Time in Participants With Confirmed Detectable HCV RNA (With Q80K at Baseline) at the Last Visit of the Previous Study | Sequencing was performed to assess changes in the sequence of the HCV NS3/4A protein region over time in participants with no SVR at LPVPS (ie confirmed detectable HCV RNA at the last visit of the previous study). EOS defined as last available sequencing sample. AEM and NEM represents any emerging mutation and no emerging mutation at time of failure of the previous study. | Baseline and Month 36 | 
| Percentage of Participants With Change in Sequence of HCV NS3/4A Region Over Time in Participants With Confirmed Detectable HCV RNA (Without Q80K at Baseline) at the Last Visit of the Previous Study | Sequencing was performed to assess changes in the sequence of the HCV NS3/4A protein region over time in participants with no SVR at LPVPS (ie confirmed detectable HCV RNA at the last visit of the previous study). EOS defined as last available sequencing sample. AEM and NEM represents any emerging mutation and no emerging mutation at time of failure of the previous study. | Baseline and Month 36 | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Percentage of Participants With Late Viral Relapse | Relapse at any time after the LPVPS until the last individual visit of this study. All participants maintained SVR until the last available visit. No late viral relapse was therefore observed. | End of study (at month 36) | 
| Number of Participants With Adverse Events (AEs) as a Measure of Safety and Tolerability |  | End of study (at month 36) | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Hepatitis C, Hepatitis, TMC435, Liver disease, Virus Infection