We are updating the design of this site. Learn more.
Show more
ClinicalTrials.gov Menu

Vitamin D as an add-on Therapy With Pegylated Interferon and Ribavirin for Chronic Hepatitis c

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified January 2014 by Hany Shehab, Cairo University.
Recruitment status was:  Active, not recruiting
ClinicalTrials.gov Identifier:
First Posted: August 2, 2012
Last Update Posted: January 29, 2014
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Information provided by (Responsible Party):
Hany Shehab, Cairo University
Chronic hepatitis C is endemic in Egypt with a high prevalence of the resistant genotype 4. Conventional standard of care treatment has modest response with only 50% sustained virologic response. Recent reports have suggested an augmented response with the addition of vitamin D. This is a prospective randomized trial to assess the effectiveness of adding vitamin D to standard of care for chronic hepatitis C genotype 4.

Condition Intervention Phase
Chronic Hepatitis c Drug: vitamin D +pegylated interferon + ribavirin Drug: pegylated interferon + ribavirin Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Vitamin D in Addition to Pegylated Interferon and Ribavirin Compared to Pegylated Interferon and Ribavirin Alone in the Treatment of Chronic Hepatitis C Genotype 4.

Resource links provided by NLM:

Further study details as provided by Hany Shehab, Cairo University:

Primary Outcome Measures:
  • Sustained virologic response [ Time Frame: 72 weeks ]
    Undetectable HCV-RNA 24 weeks after end of treatment.

Secondary Outcome Measures:
  • rapid virologic response [ Time Frame: 4 weeks ]
    undetectable HCV-RNA 4 weeks after commencement of treatment

  • End-of-treatment response [ Time Frame: 48 weeks ]
    undetectable HCV-RNA 48 weeks after commencement of treatment

  • Adverse events [ Time Frame: 72 weeks ]
    Adverse events that could be reasonably and temporally associated with administration of drugs

  • early virologic response [ Time Frame: 12 weeks ]

    Early virologic response: undetectable HCV-RNA 12 weeks after commencement of treatment.

    Partial early virologic response: decrease of more than 2login HCV-RNA.

    No early virologic response: increase, stationary or decreased less than 2log HCV-RNA.

Estimated Enrollment: 80
Study Start Date: May 2012
Estimated Study Completion Date: April 2014
Estimated Primary Completion Date: February 2014 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: Standard of care
Group A: comprises 40 treatment-naive chronic hepatitis c patients who will receive the standard of care treatment: peginterferon Alfa 2a 160 ug once weekly and weight-based ribavirin 1000 or 1200 mg/day (based on body weight < 75 kg or ≥ 75 kg, respectively) in divided doses for 48 weeks.
Drug: pegylated interferon + ribavirin
pegylated interferon 160ug once weekly Ribavirin (> 75kg:1200 mg, <75kg:1000mg daily)48 weeks
Experimental: Triple therapy
Group B: comprises 40 treatment-naive chronic HCV patients who will receive oral vitamin D 1mcg once daily plus peginterferon alfa-2a (160ug once weekly) and weight-based ribavirin 1000-1200 mg daily (based on body weight < 75 kg or ≥ 75 kg, respectively) in divided doses for 48 weeks.
Drug: vitamin D +pegylated interferon + ribavirin
Vitamin D: 1mcg once daily 48 weeks Pegylated interferon 160ug once weekly 48 weeks Ribavirin(> 75kg:1200 mg, <75kg:1000mg daily)48 weeks


Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

Ages Eligible for Study:   18 Years to 65 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Adult (male or female), 18 to 65 years of age, with chronic HCV infection
  • Liver biopsy showing chronic hepatitis with significant fibrosis using Ishak scoring system
  • Compensated liver disease; serum bilirubin < 1.5 mg/dl, INR no more than 1.5, serum albumin > 3.4, platelet count > 75,000 mm, and no evidence of hepatic decompensation (hepatic encephalopathy or ascites)
  • Acceptable hematological and biochemical indices (hemoglobin 12.5g/dl for men and 12 g/dl for women; neutrophil count 1500/mm3 or more and serum creatinine < 1.5 mg/dl
  • Patients must be serum hepatitis B surface antigen (HBsAg) negative
  • Negative Antinuclear Antibodies (ANA) or titer of < 1:160
  • Serum positive for anti-HCV antibodies and HCV-RNA
  • Abdominal Ultrasound obtained within 3 months prior to entry in the study
  • Electrocardiogram for men aged > 40 years and for women aged > 50 years
  • Normal fundus examination
  • Proper contraception measure throughout the course of treatment and six months later
  • Female patients must not breast feed during therapy

Exclusion Criteria:

  • Patients who previously received interferon
  • HgbA1c > 7.5 or history of diabetes mellitus
  • BMI > 34
  • Women who are pregnant or breast-feeding
  • Males whose female partners are either pregnant or of child-bearing potential or not using birth control and are sexually active
  • Other causes of liver disease including autoimmune hepatitis
  • Transplant recipients receiving immune suppression therapy
  • Screening tests positive for anti-HAV IgM Ab, HBsAg, anti-HBc IgM Ab or anti-HIV Ab
  • Decompensated cirrhosis, history of variceal bleeding, ascites, hepatic encephalopathy, CTP score > 6 or MELD score > 8
  • Absolute neutrophil count < 1500 cells/mm3; platelet count < 135,000 cells/mm3; hemoglobin < 12 g/dL for women and < 12.5 g/dL for men; or serum creatinine concentration ≥ 1.5 times ULN
  • Hypothyroidism or hyperthyroidism not effectively treated with medication
  • Alcohol consumption of > 40 grams per day or an alcohol use pattern that will interfere with the study
  • History or other clinical evidence of significant or unstable cardiac disease
  • History or other clinical evidence of chronic pulmonary disease associated with functional impairment
  • Serious or severe bacterial infection(s)
  • History of severe or uncontrolled psychiatric disease, including severe depression, history of suicidal ideation, suicidal attempts or psychosis requiring medication and/or hospitalization
  • History of uncontrolled severe seizure disorder
  • History of immunologically mediated disease requiring more than intermittent anti-inflammatory medications for management or that requires frequent or prolonged use of corticosteroids
  • Patients with clinically significant retinal abnormalities

    • Subjects receiving vitamin D for any other medical condition.
    • Subjects with significant active rheumatologic or orthopaedic conditions.
  Contacts and Locations
Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01655966

National Railway Hospital Center
Cairo, Egypt
Sponsors and Collaborators
Cairo University
Principal Investigator: Tamer Elbaz, MD Cairo University
Study Director: Hany Shehab, MD Cairo University
  More Information

Responsible Party: Hany Shehab, Dr, Cairo University
ClinicalTrials.gov Identifier: NCT01655966     History of Changes
Other Study ID Numbers: RAIL002
First Submitted: July 31, 2012
First Posted: August 2, 2012
Last Update Posted: January 29, 2014
Last Verified: January 2014

Keywords provided by Hany Shehab, Cairo University:
chronic hepatitis c
vitamin d

Additional relevant MeSH terms:
Hepatitis A
Hepatitis C
Hepatitis, Chronic
Hepatitis C, Chronic
Liver Diseases
Digestive System Diseases
Hepatitis, Viral, Human
Virus Diseases
Enterovirus Infections
Picornaviridae Infections
RNA Virus Infections
Flaviviridae Infections
Vitamin D
Peginterferon alfa-2a
Growth Substances
Physiological Effects of Drugs
Bone Density Conservation Agents
Antineoplastic Agents
Antiviral Agents
Anti-Infective Agents
Molecular Mechanisms of Pharmacological Action