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Patients with HCV genotype 6 infection who have a rapid virological response to treatment are randomised to either 24 or 48 weeks HCV treatment. Our hypothesis is that there is no important difference in effect between the two treatment effect.
High rate of infection of Hepatitis C Virus(HCV) Genotype 6 was recently confirmed in Southern China. Recent study implied chronic hepatitis C genotype 6 responds better to the 48-week treatment with pegylated interferon and ribavirin than genotype 1. Approximately 75.7% obtain sustained virological response (HCV RNA undetectable 24 weeks after treatment) to this approach. However, the treatment is associated with many and sometimes serious side effects. In addition, the treatment is costly also in economical terms. Shorter treatment for chronic hepatitis C genotype 6 is necessary to be assessed.
In this randomised,open label,multicenter phase 3 trial with active controls patients are treated with pegylated interferon alfa 2a (180ug/week)and ribavirin(800-1200mg based on weight)for 4 weeks. Those who are HCV RNA negative at week 4 (<50 IU; Cobas Amplicor Monitor Test, Roche Diagnostic) are defined as rapid virological responders and randomised to either an additional 20 or 44 weeks combination treatment. Patients who are HCV RNA positive are all treated for 44 more weeks. The endpoint is sustained virological response defined as undetectable HCV RNA 24 weeks after end of treatment.
Our hypothesis is that there is no important difference in the effect in the two groups.
This is a non-inferiority trial. The smallest difference considered to be clinically important is 15%. Thus to state "non-inferiority" the 95% confidence interval of the observed difference between the groups shall not overlap 10%. Both intention to treat and and per protocol analyses will be published. Conclusion will be conservative and based on the analysis who detect the biggest difference.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| 24-Week treatment group | Experimental | Genotype 6 chronic hepatitis C patients with rapid virological response(undetectable HCV RNA at weeks 4) in this group will be treated with Peginterferon alfa-2a plus ribavirin for an additional 20 weeks |
|
| 48-Week treatment group | Active Comparator | Genotype 6 chronic hepatitis C patients with rapid virological response(undetectable HCV RNA at weeks 4) in this group will be treated with Peginterferon alfa-2a plus ribavirin for an additional 44 weeks |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Peginterferon alfa2a | Drug | patients receive a dose of 180 µg of PEGASYS once a week for 24 weeks |
|
| Measure | Description | Time Frame |
|---|---|---|
| Sustained virological response (SVR) | Undetectable HCVRNA in serum(<15IU/ml) 24 weeks after the end of treatment | 24 weeks after the end of treatment |
| Measure | Description | Time Frame |
|---|---|---|
| Change in health related quality as measured by short from 36 (SF-36) from baseline to 24 weeks after the end of treatment | 24 weeks after the end of treatment | |
| Sick leave in patients treated for 24 or 48 weeks treatment | 48 weeks |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Gao Zhiliang, Doctor | The Third Affliated Hospital of Sun Yat-sen University | Study Chair |
| Zhao Zhixin, Doctor | The Third Affliated Hospital of Sun Yat-sen University | Study Director |
| Zhang Xiaohong, Doctor | The Third Affliated Hospital of Sun Yat-sen University | Principal Investigator |
| Xu Min, Doctor | The Eighth People's Hospital of Guangzhou | Principal Investigator |
| Wei min, Doctor | Zhongshan second people's hospital | Principal Investigator |
| Huang mingshou, Bachelor | Panyu People's Hospital | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| The Eighth People's Hospital of Guangzhou | Guangzhou | Guangdong | 510060 | China | ||
| The Third Affliated Hospital of Sun Yat-sen University |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 26509605 | Derived | Cai Q, Zhang X, Lin C, Shao X, Guan Y, Deng H, Wei M, Huang M, Ren Z, Lu L, Mei Y, Xu M, Zhu J, Shi H, Lin G, Liu Y, Hu F, Luo Q, Lan Y, Guo F, Zhao Z, Gao Z. 24 versus 48 Weeks of Peginterferon Plus Ribavirin in Hepatitis C Virus Genotype 6 Chronically Infected Patients with a Rapid Virological Response: A Non-Inferiority Randomized Controlled Trial. PLoS One. 2015 Oct 28;10(10):e0140853. doi: 10.1371/journal.pone.0140853. eCollection 2015. |
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| Ribavirin | Drug | patients receive a dose 800 to 1200 mg of ribavirin once a day(according to weight) for 24 weeks |
|
| Peginterferon alfa2a | Drug | patients receive a dose of 180 µg of PEGASYS once a week for 48 weeks |
|
| Ribavirin | Drug | patients receive a dose 800 to 1200 mg of ribavirin once a day(according to weight) for 48 weeks |
|
| Guangzhou |
| Guangdong |
| 510630 |
| China |
| Panyu People's Hospital | Guangzhou | Guangdong | China |
| Zhongshan second people's hospital | Zhongshan | Guangdong | China |
| ID | Term |
|---|---|
| D019698 | Hepatitis C, Chronic |
| ID | Term |
|---|---|
| D006526 | Hepatitis C |
| D000086982 | Blood-Borne Infections |
| D003141 | Communicable Diseases |
| D007239 | Infections |
| D006525 | Hepatitis, Viral, Human |
| D014777 | Virus Diseases |
| D018178 | Flaviviridae Infections |
| D012327 | RNA Virus Infections |
| D006521 | Hepatitis, Chronic |
| D006505 | Hepatitis |
| D008107 | Liver Diseases |
| D004066 | Digestive System Diseases |
| D002908 | Chronic Disease |
| D020969 | Disease Attributes |
| D010335 | Pathologic Processes |
| D013568 | Pathological Conditions, Signs and Symptoms |
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| ID | Term |
|---|---|
| C100416 | peginterferon alfa-2a |
| D012254 | Ribavirin |
| ID | Term |
|---|---|
| D012263 | Ribonucleosides |
| D009705 | Nucleosides |
| D009706 | Nucleic Acids, Nucleotides, and Nucleosides |
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