An Observational Cohort Study of Clinical Outcomes After Antiviral Treatment of Chronic Hepatitis C

Study Overview
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Brief Summary
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This study is a two-way, non-interventional long-term dynamic follow-up clinical observational cohort study. In the Second Division of Liver Diseases, Beijing Ditan Hospital, Capital Medical University, chronic hepatitis C patients who were treated with interferon combined with ribavirin (PR) antiviral therapy (PR treatment for 6 months or more) and / or direct acting antivirals (DAAs ), and the baseline, antiviral treatment and discontinuation follow-up data of patients before antiviral treatment were collected, and follow-up observations of patients were carried out for every 3-6 months. The clinical data such as clinical biochemistry, HCV RNA and serological indicators (anti-HCV), AFP, and liver imaging (liver ultrasound) were collected during the study period. The virological response and clinical outcomes of chronic hepatitis C antiviral therapy were observed for at least 144 weeks. The incidence of liver cancer and decompensated liver cirrhosis after discontinuation of the drug was the main evaluation index. The aim is to explore long-term virological response and clinical outcomes, and elucidate its influencing factors.

Detailed Description
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This study is a two-way, non-interventional long-term dynamic follow-up clinical observational cohort study. Enrolled in the Second Division of Liver Diseases, Beijing Ditan Hospital, Capital Medical University, via interferon combined with ribavirin (PR) antiviral therapy (PR treatment for 6 months or more) and / or direct acting antivirals (DAAs ) For patients with chronic hepatitis C treated, collect baseline, antiviral treatment and discontinuation follow-up data of patients before antiviral treatment, and follow-up observations of patients enrolled every 3-6 months. Collect clinical data such as clinical biochemistry, HCV RNA and serological indicators (anti-HCV), AFP, and liver imaging (liver ultrasound) during the study period. The virological response and clinical outcomes of chronic hepatitis C antiviral therapy were observed for at least 144 weeks. The incidence of liver cancer and decompensated liver cirrhosis after discontinuation of the drug was the main evaluation index. The aim is to explore long-term virological response and clinical outcomes, and elucidate its influencing factors.

Official Title
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An Observational Cohort Study of Clinical Outcomes After Antiviral Treatment of Chronic Hepatitis C Patients

Conditions
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Chronic Hepatitis C

Intervention / Treatment
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* Drug: interferon combined with ribavirin (PR) antiviral therapy
* Drug: direct antiviral drugs (DAAs)


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Ages 18 to 75; Unlimited gender; Patients with chronic hepatitis C treated with interferon combined with ribavirin (PR) antiviral therapy (PR therapy for 6 months or more) and / or direct antiviral drugs (DAAs). All patients with chronic hepatitis C met the diagnostic criteria of the Chinese Guidelines for the Prevention and Treatment of Chronic Hepatitis C (2015) No hormones and / or immunosuppressants and other hepatoprotective drugs; Sign a written informed consent. Exclusion Criteria: Combined with other hepatitis virus (HBV, HDV) infections; Immune liver disease; HIV infection; long-term alcohol and / or other liver damage drugs; mental illness; Evidence of liver tumor (liver cancer or AFP> 100 ng / ml); Decompensated cirrhosis; Those who have serious heart, brain, lung, kidney and other system diseases that cannot participate in long-term follow-up; There are hormones and / or immunosuppressants and other hepatoprotective drugs.

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 75 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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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| interferon combined with ribavirin (PR) antiviral therapy<br>Patients with chronic hepatitis C treated with interferon combined with ribavirin (PR) antiviral therapy (PR therapy greater than or equal to 6 months) | Drug: interferon combined with ribavirin (PR) antiviral therapy<br>* Patients with chronic hepatitis C treated with interferon combined with ribavirin (PR) antiviral therapy (PR therapy greater than or equal to 6 months)<br>|
| direct antiviral drugs (DAAs)<br>Patients with chronic hepatitis C treated with direct antiviral drugs (DAAs) | Drug: direct antiviral drugs (DAAs)<br>* Patients with chronic hepatitis C treated with direct antiviral drugs (DAAs)<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Incidence of liver cancer | Incidence of liver cancer after chronic hepatitis C antiviral treatment | 144 weeks after withdrawal | 
| Incidence of decompensated cirrhosis | Incidence of decompensated cirrhosis after chronic hepatitis C antiviral treatment | 144 weeks after withdrawal | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Rate of sustained virological response or relapse | Rate of sustained virological response or relapse after antiviral treatment of chronic hepatitis C | 144 weeks after withdrawal | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Chronic hepatitis C, Interferon, Ribavirin, Clinical outcome