A Phase 2 interventional study of Peginterferon alfa-2a and Ribavirin in Chronic Hepatitis C, sponsored by National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK). Completed at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2013-07-05.
Sponsored by National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) · Phase 2, Interventional, and Treatment
This study will examine the effectiveness of S-adenosyl methionine (SAMe) in combination with peginterferon and ribavirin for treating hepatitis C virus. One out of three patients with hepatitis C develops cirrhosis of the liver, which can lead to liver failure or liver cancer. SAMe is a nutritional supplement that is made naturally in all cells of the body and acts to improve how the body handles stress. In laboratory experiments with liver cells, SAMe decreases the injury caused by liver toxins and improves the ability of interferon to block hepatitis C virus.
Patients 18 years of age and older with hepatitis C infection who did not respond successfully to prior treatment with interferon and ribavirin or peginterferon and ribavirin may be eligible for this study.
Participants receive the following treatment:
Participants have a thorough physical evaluation before beginning treatment and again at the study's end. After starting treatment, patients return for clinic visits and blood tests weekly for the first several weeks, then less frequently (at 2-week, then 4-week and 8-week intervals until up to 72 weeks) to monitor symptoms, drug side effects, hepatitis C virus levels, liver enzyme levels and immune responses to hepatitis C.
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S-adenosyl methionine (SAMe) is a nutritional supplement which is available as an over-the-counter formula. It is a naturally occurring, modified amino acid that is produced in virtually all cells and participates in many biochemical pathways as a major methyl donor and may play a role in intracellular interferon signaling.
This study will assess the effects of SAMe on antiviral responses to peginterferon and ribavirin in patients with chronic hepatitis C, genotype 1, who have failed to respond to a previous course of therapy. After screening evaluation, patients will receive a first course of 2 weeks of peginterferon alfa-2a (180 micrograms weekly) and ribavirin (1000-1200 mg daily) during which symptoms, routine laboratory tests, HCV RNA levels, natural killer (NK) cell activity, and lymphocyte interferon-signaling responses will be monitored. After a 4-week washout period, patients will start SAMe (800 mg twice daily) for 2 weeks and then begin a second course of peginterferon and ribavirin in the same doses with similar monitoring. Therapy will be continued for at least 12 weeks, and patients with an early viral response will continue for a full 48 weeks. The primary criterion for efficacy of SAMe will be improved HCV kinetic responses comparing the first and second courses of peginterferon and ribavirin. Secondary endpoints will be improvement in NK cell activity and intracellular interferon signaling.
This is a pilot study to determine whether SAMe improves responses to peginterferon therapy in terms of intracellular interferon signaling, innate immune responses, and decline in viral levels.
2,709 studies on the registry are indexed under Hepatitis A; 142 are open to participants now.
This study's enrollment of 24 is below the median of 100 across 1,886 interventional studies indexed under Hepatitis A.
Browse Hepatitis A studies →National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) is the lead sponsor of 529 studies on the registry; 54 are open to participants now.
Of its 79 completed or terminated interventional studies of FDA-regulated products, 50 (63%) have results posted.
Counted across the registry records on this site, refreshed daily.
EXCLUSION CRITERIA
Drug: Peginterferon alfa-2a · Drug: Ribavirin · Drug: S-adenosyl methionine for Chronic Liver Disease
Improvement in Viral Kinetics During the First 2 Weeks of Therapy
Improvement of slopes of decline in hepatitis C virus Ribonucleic acid in second course compared with first course in days 7 to 14 of therapy
Time frame: Days 7 to 14 of therapy
2-log Decline in HCV RNA by Week 12 (Early Virological Response) and Sustained Eradication of HCV RNA (Sustained Virological Response).
2-log decline in HCV RNA by week 12 (early virological response) and sustained eradication of HCV RNA (sustained virological response).
Time frame: 12 weeks from start of therapy
Twenty-four patients were enrolled at National Institutes of Health Clinic Center between October 2007 and April 2009.
| Milestone | Hepatitis C Treated With Peginterferon and Ribavirin |
|---|---|
| Started | 24 |
| Completed | 20 |
| Not completed | 4 |
| Withdrew: Adverse event | 2 |
| Withdrew: Withdrawal by subject | 1 |
| Withdrew: Protocol violation | 1 |
Improvement of slopes of decline in hepatitis C virus Ribonucleic acid in second course compared with first course in days 7 to 14 of therapy
| participants | Hepatitis C Treated With Peginterferon and Ribavirin |
|---|---|
| Improvement in Viral Kinetics During the First 2 Weeks of Therapy | 14 |
2-log decline in HCV RNA by week 12 (early virological response) and sustained eradication of HCV RNA (sustained virological response).
| participants | Hepatitis C Treated With Peginterferon and Ribavirin |
|---|---|
| 2-log Decline in HCV RNA by Week 12 (Early Virological Response) and Sustained Eradication of HCV RNA (Sustained Virological Response). | 11 |
Non-serious events are listed at a 1% frequency threshold.
| Group | Deaths | Serious | Other |
|---|---|---|---|
| Hepatitis C Treated With Peginterferon and Ribavirin | — | 0/24 (0%) | 1/24 (4.2%) |
| Event | Hepatitis C Treated With Peginterferon and Ribavirin |
|---|---|
| Rash attributed to ribavirinSkin and subcutaneous tissue disorders | 1/24 |
| Benzodiazepine abuseGeneral disorders | 1/24 |
| Age Continuous(year) | Hepatitis C Treated With Peginterferon and Ribavirin |
|---|---|
| Median | 52.5 (41 to 65) |
| Sex: Female, Male(Participants) | Hepatitis C Treated With Peginterferon and Ribavirin |
|---|---|
| Female | 8 |
| Male | 16 |
| Race/Ethnicity, Customized(participants) | Hepatitis C Treated With Peginterferon and Ribavirin |
|---|---|
| Hispanic | 1 |
| Black | 2 |
| White | 21 |
| Body Mass Index(kg/m^2) | Hepatitis C Treated With Peginterferon and Ribavirin |
|---|---|
| Mean | 27.2 ± 3.74 |
| Ishak Fibrosis(Units on a scale) | Hepatitis C Treated With Peginterferon and Ribavirin |
|---|---|
| Median | 2 (0 to 6) |
| Cirrhosis(participants) | Hepatitis C Treated With Peginterferon and Ribavirin |
|---|---|
| Cirrhosis | 5 |
| Non-Cirrhosis | 19 |
| Previous Therapy(participants) | Hepatitis C Treated With Peginterferon and Ribavirin |
|---|---|
| Interferon/ribavirin | 3 |
| Peginterferon/ribavirin | 21 |
| Baseline HCV RNA Level(log10 (IU/mL)) | Hepatitis C Treated With Peginterferon and Ribavirin |
|---|---|
| Mean | 6.3 ± 0.6 |
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National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)