Daily-Dose Consensus Interferon and Ribavirin: Efficacy of Combined Therapy

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. Identifier: NCT00086541
Recruitment Status : Completed
First Posted : July 7, 2004
Last Update Posted : May 7, 2007
Information provided by:
Valeant Pharmaceuticals International, Inc.

July 2, 2004
July 7, 2004
May 7, 2007
June 2004
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Evaluate sustained virologic response (SVR) rate of daily Infergen at two dose levels plus ribavirin and no treatment in chronically HCV-infected patients who are nonresponders to previous pegylated interferon alfa plus ribavirin therapy.
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Complete list of historical versions of study NCT00086541 on Archive Site
Evaluate safety & tolerability of therapy detailed in primary objective, and proportion of patients with (a) undetectable plasma HCV RNA levels at weeks 24 & 48 (b) abnormal baseline serum ALT levels that are normal at week 24, week 48 and weeks 48 & 72.
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Daily-Dose Consensus Interferon and Ribavirin: Efficacy of Combined Therapy
A Phase 3, Randomized, Open-Label Study of the Safety and Efficacy of Two Dose Levels of Interferon Alfacon-1 (Infergen, CIFN) Plus Ribavirin Administered Daily for 48 Weeks Versus No Treatment in Hepatitis C Infected Patients Who Are Nonresponders to Previous Pegylated Interferon Alfa Plus Ribavirin Therapy

This Phase 3 clinical study is designed to evaluate the safety, tolerability, and efficacy of two dose levels of Infergen (interferon alfacon-1, CIFN) plus Ribavirin administered daily for 48 weeks and no treatment in patients chronically infected with hepatitis C who are nonresponders to previous pegylated interferon alfa plus ribavirin therapy.

Patients are randomized 1:1:1 to receive Interferon Alfacon-1 (9 or 15 µg) + Ribavirin (both administered daily) or no treatment for up to 48 weeks.

The protocol and informed consent form that will be used must be approved by the Investigator’s Institutional Review Board (IRB)/Independent Ethics Committee (IEC) before the study is initiated.

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Phase 3
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Chronic Hepatitis C
Drug: Daily Infergen (Interferon Alfacon-1, CIFN) (9 or 15 µg) + Ribavirin (1000-1200 mg, based on body weight) PO Daily for up to 48 wks
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*   Includes publications given by the data provider as well as publications identified by Identifier (NCT Number) in Medline.
January 2007
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(Abbreviated due to space constraints.)

Inclusion Criteria:

  1. Signed informed consent form
  2. Male or female 18 yrs. of age or older
  3. Chronic HCV infection based on documented history of positive serum anti-HCV antibody test and/or detectable levels of HCV RNA
  4. Documented virologic nonresponse to past treatment with PEGASYS plus ribavirin or PEG-Intron plus ribavirin
  5. Previously treated w/either of the following starting doses of pegylated interferon alpha:

    1. ≥ 1.5 µg/kg/week PEG-Intron or dose consistent with the package insert or,
    2. ≥ 180 µg/week PEGASYS
  6. Detectable plasma HCV RNA level at screening visit
  7. Liver biopsy histologically documenting chronic liver disease consistent with chronic HCV infection
  8. All patients and all potentially fertile sexual partners of patients must use 2 reliable forms of effective contraception during the study & for 6 months after cessation of the study drugs

Exclusion Criteria:

  1. Any history of decompensated liver disease
  2. Any of a variety of laboratory abnormalities assessed through blood sample at screening
  3. Patients who prematurely discontinued, interrupted, or reduced the dose of their previous pegylated interferon alpha-based combination therapy due to noncompliance or safety and/or tolerability issues
  4. Patients who had undetectable HCV RNA levels during prior pegylated interferon alfa plus ribavirin treatment but who relapsed during follow-up
  5. Significant depression in the last 2 years
  6. Patients treated for HCV infection within 3 months before screening (w/the exclusion of over-the-counter therapies)
  7. Patients who have been on any experimental protocol or therapy within 28 days before screening
  8. Use of colony-stimulating factor agents or other therapeutic agents that might artificially elevate laboratory parameters within 3 months before screening
  9. Known human immunodeficiency virus (HIV) infection or positive HIV antibody test at screening
  10. Chronic hepatitis B infection or positive hepatitis B surface antigen (HBsAg) at screening
  11. New onset diabetes
  12. Unstable or uncontrolled thyroid disease
  13. Presence or history of non-HCV chronic liver disease
  14. History of unstable or deteriorating cardiac or cerebrovascular disease within 6 months before Screening
  15. Current or history of neurologic disorder within the last 2 years
  16. History of seizures within the past 5 years
  17. History of hemoglobinopathies
  18. History of malignancy within the last 5 years with the exception of localized basal or squamous cell carcinoma & fully resected, localized malignancy not requiring active treatment & with no evidence of recurrence
  19. A disease known to cause significant alteration in immunologic function including hematologic malignancy, sarcoidosis or autoimmune disorder
  20. History or evidence of retinopathy
  21. History of major organ transplantation with an existing functional graft
  22. Concurrent therapy with immunosuppressive drugs or cytotoxic agents
  23. Alcohol and/or drug abuse w/in the past year, that in the opinion of the Investigator or the Sponsor may negatively affect patient compliance
  24. Pregnant or lactating women
  25. Male partners of women who are pregnant
  26. Known sensitivity to Infergen or IFN-α or to E. coli-derived products
  27. Patients who, in the opinion of the Investigator or the Sponsor, are not suitable candidates for enrollment or who would not comply w/the requirements of the study
  28. Patients who have not responded to a course of daily Infergen (9 or 15 µg) with or without ribavirin or who have relapsed after a course of daily Infergen (9 or 15 µg).
Sexes Eligible for Study: All
18 Years and older   (Adult, Senior)
Contact information is only displayed when the study is recruiting subjects
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United States
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Valeant Pharmaceuticals International, Inc.
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Valeant Pharmaceuticals International, Inc.
May 2007

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP