- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01258686
Clinical Study With Silymarin in the Patients With Chronic Hepatitis C Infection Who Failed Conventional Antiviral Therapy
November 22, 2013 updated by: Bukwang Pharmaceutical
A Double-blind Phase III Study With Silymarin in the Patients Infected With HCV Who Failed Conventional Antiviral Therapy
The purpose of this study is to determine the effectiveness of silymarin 700 mg thrice daily and assess the safety in patients with hepatitis C virus infection compared to a placebo.
Study Overview
Study Type
Interventional
Enrollment (Actual)
53
Phase
- Phase 3
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
-
-
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Seoul, Korea, Republic of
- Byung Chul, Yoo
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-
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
18 years and older (ADULT, OLDER_ADULT)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
- Age at least 18 years at screening.
- Serum HCV RNA above quantifiable level of detection after the end of previous therapy.
- ALT > 60 IU/L (i.e., approximately 1.5 X upper limit of normal) obtained during the screening period.
- Previous treatment with any interferon-based therapy but 1) without sustained virological response or 2) HCV RNA detected at the end of the treatment or 3) HCV RNA undetected during the treatment and detected after or 4) have partial response(HCV RNA < 2log10 but is not eradicated) or 5) have no response or 6) discontinuation due to side effect
- Negative urine pregnancy test (for women of childbearing potential). Females of childbearing potential must be using effective contraception during the study.
Exclusion Criteria:
- ALT ≥ 10*ULN(Upper Limit of Normal) at the screening
- Use of silymarin or other milk thistle preparations within 30 days prior to screening.
- Use of other antioxidants such as vitamin E, vitamin C, glutathione, alpha-tocopherol, or non-prescribed complementary alternative medications (including dietary supplements, megadose vitamins, herbal preparations, and special teas) within 30 days prior to screening. A multivitamin at standard doses will be allowed.
- Use of silymarin or other antioxidants or non-prescribed complementary alternative medications (as above) during the screening period or patient unwilling to refrain from taking these medications through completion of the study.
- Any antiviral therapy within 6 months prior to screening visit.
- Known allergy/sensitivity to milk thistle or its preparations.
- Evidence of poorly-controlled diabetes (defined as HbA1c > 8% in patients with diabetes).
- Use of warfarin, metronidazole or acetaminophen (greater than two grams per day) within 30 days of screening.
- Previous Radiology test(Ultrasonography, Computed tomography,Magnetic Resonance Imaging) or liver biopsy that demonstrated presence of moderate to severe steatosis or evidence of steatohepatitis.
- Positive test for anti-HIV or HBsAg within 5 years of screening.
- Average alcohol consumption of more than one drink or equivalent (>12 grams) per day or more than two (2) drinks on any one day over the 30 days prior to screening. Patients who met either criterion more than 30 days ago must have consumed a monthly average of 12 grams or less per day of alcohol for at least six months prior to screening.
- History of other chronic liver disease, including metabolic diseases, documented by appropriate test(s).
- Women with ongoing pregnancy or breast-feeding, or contemplating pregnancy.
- Serum creatinine level 2.0 mg/dL or greater at screening or CrCl ≤ 60cc/min, or currently on dialysis. The creatinine clearance (CrCl) will be calculated according to Cockcroft-Gault.
- Evidence of drug abuse within 6 months prior to screening or during the screening period.
- Evidence of decompensated liver disease defined as any of the following: serum albumin <3.2 g/dl, total bilirubin > 2.0 mg/dl, or PT/INR > 1.3 times normal at screening, or history or presence of ascites or encephalopathy, or bleeding from esophageal varices.
- History or other evidence of severe illness or any other conditions that would make the patient, in the opinion of the investigator, unsuitable for the study (such as poorly controlled psychiatric disease, coronary artery disease, or active gastrointestinal conditions that might interfere with drug absorption).
- History of immunologically mediated disease (e.g., inflammatory bowel disease, idiopathic thrombocytopenic purpura, lupus erythematosus, autoimmune hepatitis, autoimmune hemolytic anemia, severe psoriasis, rheumatoid arthritis) that could affect inflammatory biomarkers.
- History of solid organ or bone marrow transplantation.
- History of thyroid disease poorly controlled on prescribed medications.
- Use of oral steroids for more than 14 days within 30 days prior to screening.
- Participation in a research drug trial within 6 months of enrollment.
- Inability or unwillingness to provide informed consent or abide by the study protocol.
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: TREATMENT
- Allocation: RANDOMIZED
- Interventional Model: PARALLEL
- Masking: QUADRUPLE
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
PLACEBO_COMPARATOR: placebo
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Placebo 700mg thrice daily
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EXPERIMENTAL: silymarin, treatment
|
700mg thrice daily
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
The proportion of patient with serum ALT less than or equal to 40 IU/L or achieves at least 50% decline to less than 60 IU/L
Time Frame: at week 24
|
at week 24
|
Secondary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
the change from baseline in ALT and HCV RNA (log10)
Time Frame: 36 weeks
|
36 weeks
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Investigators
- Principal Investigator: Byung Chul Yoo, MD. PhD., Samsung Medical Center
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start
November 1, 2010
Primary Completion (ACTUAL)
November 1, 2012
Study Completion (ACTUAL)
August 1, 2013
Study Registration Dates
First Submitted
December 10, 2010
First Submitted That Met QC Criteria
December 10, 2010
First Posted (ESTIMATE)
December 13, 2010
Study Record Updates
Last Update Posted (ESTIMATE)
November 25, 2013
Last Update Submitted That Met QC Criteria
November 22, 2013
Last Verified
November 1, 2013
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Digestive System Diseases
- RNA Virus Infections
- Virus Diseases
- Infections
- Blood-Borne Infections
- Communicable Diseases
- Liver Diseases
- Flaviviridae Infections
- Hepatitis, Viral, Human
- Enterovirus Infections
- Picornaviridae Infections
- Hepatitis
- Hepatitis A
- Hepatitis C
- Physiological Effects of Drugs
- Molecular Mechanisms of Pharmacological Action
- Protective Agents
- Antioxidants
- Silymarin
Other Study ID Numbers
- BK SIL-C-301
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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