A Study of PEGASYS (Peginterferon Alfa-2a (40KD)) Plus COPEGUS (Ribavirin) With or Without Pioglitazone in Treatment-Naive Patients With Chronic Hepatitis C and Insulin Resistance.

This study has been completed.
Sponsor:
Information provided by (Responsible Party):
Hoffmann-La Roche
ClinicalTrials.gov Identifier:
NCT00545233
First received: October 16, 2007
Last updated: April 10, 2012
Last verified: April 2012
  Purpose

This 2 arm study will assess the efficacy and safety of PEGASYS plus COPEGUS, with or without concomitant pioglitazone, on hepatitis C virus titers in treatment-naive patients with genotype 1 chronic hepatitis C, and insulin resistance. Patients will be randomized to receive either a)PEGASYS 180 micrograms/week + Copegus 1000-1600 mg/day (according to body weight) for 48 weeks or b)16 weeks of pioglitazone (30 mg daily for 8 weeks, then 45 mg daily for 8 weeks), followed by PEGASYS 180 micrograms/week + Copegus 1000-1600 mg/day + pioglitazone 45 mg daily for 48 weeks. The anticipated time on study treatment is 1-2 years, and the target sample size is 100-500 individuals.


Condition Intervention Phase
Hepatitis C, Chronic
Drug: peginterferon alfa-2a [Pegasys]
Drug: ribavirin [Copegus]
Drug: Pioglitazone
Phase 4

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: A Randomized, Open-label Study of the Effect of PEGASYS ® Plus COPEGUS® With or Without Concomitant Pioglitazone (Actos®) on Early Viral Kinetics in Treatment-naive Patients With Chronic Hepatitis C, Genotype-1, and Insulin Resistance

Resource links provided by NLM:


Further study details as provided by Hoffmann-La Roche:

Primary Outcome Measures:
  • Change From Initiation of Pegasys Plus Copegus in log10 Hepatitis C Virus Ribonucleic Acid (HCV RNA) Viral Load to Week 12 of Anti-HCV Therapy [ Time Frame: Initiation of Pegasys plus Copegus, Week 12 of anti-HCV treatment ] [ Designated as safety issue: No ]
    Serum samples were collected for HCV RNA. The change from initiation of Pegasys plus Copegus to Week 12 in HCV RNA titers were calculated. Randomization for the with Pioglitazone arm occurred prior to the 16 week run-in period and randomization for the without Pioglitazone arm occurred prior to the start of anti-HCV treatment.


Secondary Outcome Measures:
  • Change From Initiation of Pegasys Plus Copegus in log10 HCV RNA Viral Load to Week 24 and Week 48 of Anti-HCV Therapy [ Time Frame: Initiation of Pegasys Plus Copegus, Week 24 and Week 48 of anti-HCV therapy ] [ Designated as safety issue: No ]
    Serum samples were collected for HCV RNA. The change from Initiation of Pegasys Plus Copegus to Week 24 and Week 48 in HCV RNA titers were calculated. Randomization for the with Pioglitazone arm occurred prior to the 16 week run-in period and randomization for the without Pioglitazone arm occurred prior to the start of anti-HCV treatment.

  • Percentage of Participants Achieving Virologic Response [ Time Frame: Weeks 4, 12, 24, 48, 60, 72 ] [ Designated as safety issue: No ]
    Virologic response was defined as undetectable HCV RNA < 28 IU/mL. Patients with missing HCV RNA values are considered as non-responders.

  • Percentage of Participants With a ≥ 2 log10 Decrease in HCV RNA From Initiation of Pegasys Plus Copegus to Weeks 4, 12, 24, 48, 60, 72 [ Time Frame: Initiation of Pegasys plus Copegus, Weeks 4, 12, 24, 48, 60, 72 ] [ Designated as safety issue: No ]
    Serum samples were collected for HCV RNA. The percentage of participants with a ≥ 2 log10 decrease in HCV RNA from initiation of Pegasys plus Copegus to time point was calculated.

  • Percentage of Participants With a Virological Relapse at Week 72 (24 Weeks After the End of Anti-HCV Treatment) [ Time Frame: Week 72 ] [ Designated as safety issue: No ]
    Virologic relapse was defined as the reappearance of HCV-RNA in serum after PEG-INF alpha 2a therapy is discontinued in a patient who was HCV-RNA undetectable at the completion of anti-HCV therapy.

  • Percentage of Participants With a Confirmed Virological Breakthrough up to 48 Weeks [ Time Frame: Up to 48 Weeks ] [ Designated as safety issue: No ]
    Virological breakthrough is a detectable HCV RNA at any time during anti-HCV treatment up to Week 48 after the attainment of undetectable HCV RNA.

  • Percentage of Nonresponders During the 48 Week Anti-HCV Treatment Period [ Time Frame: Up to 48 Weeks ] [ Designated as safety issue: No ]
    Nonresponders are defined as patients who did not achieve undetectable HCV RNA during anti-HCV treatment

  • Change in Log10 HCV RNA Viral Load at Assessments From Randomization to 16 Weeks of Pioglitazone Pretreatment Run-In Period for the Pioglitazone Arm Only [ Time Frame: Randomization (Week-16),Weeks -12, -8, -4 and 0 ] [ Designated as safety issue: No ]
    Serum HCV RNA was collected at randomization and during the pioglitazone run-in period at various time points for the with pioglitazone arm only. The change from randomization to each of these time points was calculated.

  • Change From Baseline in Fasting Plasma Glucose Levels at Each Time Point Assessed [ Time Frame: Baseline, Weeks 4, 8,12,16,20,24,28,32,36,40,44,48,60,72 ] [ Designated as safety issue: No ]

    Blood was collected for plasma fasting glucose levels at various time points throughout the study and was used as a measure of glycemic control (monitoring the ability of the patient to maintain normal blood sugar levels).

    Baseline for the with pioglitazone arm occurred prior to the start of 16 week run-in period and for the without pioglitazone arm prior to the start of anti-HCV therapy. The change from baseline to Weeks 4 thru 72 after the initiation of anti-HCV therapy is calculated.


  • Change From Baseline in Fasting Insulin Levels at Each Time Point Assessed. [ Time Frame: Baseline, Weeks 4, 8,12,16,20,24,28,32,36,40,44,48,60,72 ] [ Designated as safety issue: No ]

    Blood was collected for fasting insulin levels at various time points throughout the study and was used as a measure of glycemic control (monitoring the ability of the patient to maintain normal blood sugar levels).

    Baseline for the with pioglitazone arm occurred prior to the start of 16 week run-in period and for the without pioglitazone arm prior to the start of anti-HCV therapy. The change from baseline to Weeks 4 thru 72 after the initiation of anti-HCV therapy is calculated.


  • Change From Baseline in Fasting Hemoglobin A1C (HbA1c) Concentrations at Each Time Point Assessed [ Time Frame: Baseline, Weeks 4,8,12,16,20,24,28,32,36,40,44,48,60,72 ] [ Designated as safety issue: No ]

    Blood was collected for a fasting Hemoglobin A1C level at various time points throughout the study and was used as a measure of glycemic control (monitoring the ability of the patient to maintain normal blood sugar levels).

    Baseline for the with pioglitazone arm occurred prior to the start of 16 week run-in period and for the without pioglitazone arm prior to the start of anti-HCV therapy. The change from baseline to Weeks 4 thru 72 after the initiation of anti-HCV therapy is calculated.


  • Change From Baseline in Homeostasis Model Assessment (HOMA) Scores at Each Time Point Assessed [ Time Frame: Baseline, Weeks 4,8,12,16,20,24,28,32,36,40,44,48,60,72 ] [ Designated as safety issue: No ]

    Insulin resistance (IR) is calculated using the following formula:

    HOMA score = (fasting glucose in mg/dL × fasting insulin in μIU/mL) / 405.

    Baseline for "with pioglitazone" arm occurred prior to the start of 16 week run-in period and for "without pioglitazone" arm prior to the start of anti-HCV therapy. The change from baseline to Weeks 4 thru 72 after the start of anti-HCV therapy is calculated.

    A normal patient can have a HOMA score up to 3. A patient with a score of >3 is definitely IR. Patients scoring 2-3 can be IR but other factors may be causing this without being IR.


  • Change From Baseline in Serum Triglyceride Concentrations at Each Time-point Assessed [ Time Frame: Baseline, Weeks 4, 8,12,16,20,24,28,32,36,40,44,48,60, 72 ] [ Designated as safety issue: No ]

    Blood was collected and assayed for fasting serum triglyceride levels at various time points throughout the study and was used as an indicator of lipid control.

    Baseline for the with pioglitazone arm occurred prior to the start of 16 week run-in period and for the without pioglitazone arm prior to the start of anti-HCV therapy. The change from baseline to Weeks 4 thru 72 after the initiation of anti-HCV therapy is calculated.


  • Change From Baseline in Total Cholesterol Levels at Each Time-point Assessed [ Time Frame: Baseline, Weeks 4,8,12,16,20,24,28,32,36,40,44,48,60,72 ] [ Designated as safety issue: No ]

    Blood was collected and assayed for fasting serum cholesterol levels at various time points throughout the study and was used as an indicator of lipid control.

    Baseline for the with pioglitazone arm occurred prior to the start of 16 week run-in period and for the without pioglitazone arm prior to the start of anti-HCV therapy. The change from baseline to Weeks 4 thru 72 after the initiation of anti-HCV therapy is calculated.


  • Change From Baseline in Low-density Lipoprotein (LDL-cholesterol) Levels at Each Time-point Assessed [ Time Frame: Baseline, Weeks 4,8,12,16,20,24,28,32,36,40,44,48,60,72 ] [ Designated as safety issue: No ]

    Blood was collected and assayed for fasting serum low-density lipoprotein (LDL-cholesterol) levels at various time points throughout the study and was used as an indicator of lipid control.

    Baseline for the with pioglitazone arm occurred prior to the start of 16 week run-in period and for the without pioglitazone arm prior to the start of anti-HCV therapy. The change from baseline to Weeks 4 thru 72 after the initiation of anti-HCV therapy is calculated.


  • Change From Baseline in High-density Lipoprotein (HDL-cholesterol) Levels at Each Time-point Assessed [ Time Frame: Baseline, Weeks 4,8,12,16,20,24,28,32,36,40,44,48,60,72 ] [ Designated as safety issue: No ]

    Blood was collected and assayed for fasting high-density lipoprotein (HDL-cholesterol) levels at various time points throughout the study and was used as an indicator of lipid control.

    Baseline for the with pioglitazone arm occurred prior to the start of 16 week run-in period and for the without pioglitazone arm prior to the start of anti-HCV therapy. The change from baseline to Weeks 4 thru 72 after the initiation of anti-HCV therapy is calculated.


  • Change From Baseline in Tumor Necrosis Factor Alpha (TNF-α) at Each Time Point Assessed [ Time Frame: Baseline, Weeks 4, 8,12,16,20,24,28,32,36,40,44,48,60,72 ] [ Designated as safety issue: No ]

    Blood was collected for tumor necrosis factor alpha at various time points throughout the study and was used as a measure of insulin resistance (the inability of insulin to control blood sugar levels).

    Baseline for the with pioglitazone arm occurred prior to the start of 16 week run-in period and for the without pioglitazone arm prior to the start of anti-HCV therapy. The change from baseline to Weeks 4 thru 72 after the initiation of anti-HCV therapy is calculated.


  • Change From Baseline in Transforming Growth Factor Beta (TGF-β) Levels at Each Time Point Assessed [ Time Frame: Baseline, Weeks 4, 8,12,16,20,24,28,32,36,40,44,48,60,72 ] [ Designated as safety issue: No ]

    Blood was collected for Transforming Growth Factor beta at various time points throughout the study and was used as a measure of insulin resistance (the inability of insulin to control blood sugar levels).

    Baseline for the with pioglitazone arm occurred prior to the start of 16 week run-in period and for the without pioglitazone arm prior to the start of anti-HCV therapy. The change from baseline to Weeks 4 thru 72 after the initiation of anti-HCV therapy is calculated.


  • Change From Baseline in Adiponectin Levels at Each Time Point Assessed [ Time Frame: Baseline, Weeks 4, 8,12,16,20,24,28,32,36,40,44,48,60,72 ] [ Designated as safety issue: No ]

    Blood was collected for adiponectin at various time points throughout the study and was used as a measure of insulin resistance (the inability of insulin to control blood sugar levels).

    Baseline for the with pioglitazone arm occurred prior to the start of 16 week run-in period and for the without pioglitazone arm prior to the start of anti-HCV therapy. The change from baseline to Weeks 4 thru 72 after the initiation of anti-HCV therapy is calculated.


  • Change From Baseline in Leptin Levels at Each Time Point Assessed [ Time Frame: Baseline, Weeks 4, 8,12,16,20,24,28,32,36,40,44,48,60,72 ] [ Designated as safety issue: No ]

    Blood was collected for leptin at various time points throughout the study and was used as a measure of insulin resistance (the inability of insulin to control blood sugar levels).

    Baseline for the with pioglitazone arm occurred prior to the start of 16 week run-in period and for the without pioglitazone arm prior to the start of anti-HCV therapy. The change from baseline to Weeks 4 thru 72 after the initiation of anti-HCV therapy is calculated.


  • Change From Baseline in Free Fatty Acid Levels at Each Time Point Assessed [ Time Frame: Baseline, Weeks 4, 8,12,16,20,24,28,32,36,40,44,48,60,72 ] [ Designated as safety issue: No ]

    Blood was collected for free fatty acids at various time points throughout the study and was used as a measure of insulin resistance (the inability of insulin to control blood sugar levels).

    Baseline for the with pioglitazone arm occurred prior to the start of 16 week run-in period and for the without pioglitazone arm prior to the start of anti-HCV therapy. The change from baseline to Weeks 4 thru 72 after the initiation of anti-HCV therapy is calculated.


  • Percentage of Participants With Beck Depression Inventory Fast Screen (BDI-FS) Score ≥ 4 at Each Time Point Assessed [ Time Frame: Weeks 4, 8,12,16,20,24,28,32,36,40,44,48,60,72 ] [ Designated as safety issue: No ]
    The BDI-FS consisted of seven areas with four statements (labeled 0, 1, 2, and 3) offered to describe the area of interest, with 0 indicating no effect and 3 indicating the worst effect. The individual area scores were summed to provide a total score. The degree of depression was assessed with 0 to 3 indicating minimal depression, 4 to 8 mild depression, 9 to 12 moderate depression and 13 to 21 severe depression.


Enrollment: 155
Study Start Date: January 2008
Study Completion Date: December 2010
Primary Completion Date: December 2010 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: PEG-INF alpha-2a + ribavirin+ pioglitazone
Participants received pioglitazone in a 16 week run-in period (30 mg per day orally for 8 weeks followed by 45 mg per day orally for 8 weeks). Participants then received piogliatzone 45 mg daily orally plus 18 μg of Peginterferon Alfa-2a (PEG-INF alpha-2a) subcutaneous (sc) once a week plus ribavirin (1000 - 1600 mg/day orally as a split dose in the morning and the evening based on the participant's body weight) for 48 weeks in the anti-HCV treatment phase. Participants received 45 mg of pioglitazone per day orally in the 24 week follow-up period.
Drug: peginterferon alfa-2a [Pegasys]
180 micrograms subcutaneous weekly for 48 weeks
Other Name: Pegasys
Drug: ribavirin [Copegus]
1000-1600 mg day orally for 48 weeks.
Other Name: Copegus
Drug: Pioglitazone
30 mg daily for 8 weeks increasing to 45 mg daily for 64 weeks.
Other Name: Actos
Active Comparator: PEG-INF alpha-2a + ribavirin
Participants received 18 μg of Peginterferon Alfa-2a (PEG-INF alpha-2a) subcutaneous (sc) once a week plus ribavirin (1000 - 1600 mg/day orally as a split dose in the morning and the evening based on the participant's body weight) for 48 weeks in the anti-HCV treatment phase followed by a treatment free 24 week follow-up period.
Drug: peginterferon alfa-2a [Pegasys]
180 micrograms subcutaneous weekly for 48 weeks
Other Name: Pegasys
Drug: ribavirin [Copegus]
1000-1600 mg day orally for 48 weeks.
Other Name: Copegus

  Eligibility

Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • adult patients, >=18 years of age;
  • chronic hepatitis C, genotype 1;
  • insulin resistance.

Exclusion Criteria:

  • other forms of liver disease;
  • cirrhosis;
  • previous treatment for chronic hepatitis C;
  • insulin treatment during prior 2 weeks;
  • type 1 diabetes.
  Contacts and Locations
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, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT00545233

  Show 66 Study Locations
Sponsors and Collaborators
Hoffmann-La Roche
Investigators
Study Director: Clinical Trials Hoffmann-La Roche
  More Information

No publications provided

Responsible Party: Hoffmann-La Roche
ClinicalTrials.gov Identifier: NCT00545233     History of Changes
Other Study ID Numbers: ML21301
Study First Received: October 16, 2007
Results First Received: February 8, 2012
Last Updated: April 10, 2012
Health Authority: United States: Food and Drug Administration

Additional relevant MeSH terms:
Hepatitis
Hepatitis A
Hepatitis, Chronic
Hepatitis C
Insulin Resistance
Hepatitis C, Chronic
Liver Diseases
Digestive System Diseases
Hepatitis, Viral, Human
Virus Diseases
Enterovirus Infections
Picornaviridae Infections
RNA Virus Infections
Flaviviridae Infections
Hyperinsulinism
Glucose Metabolism Disorders
Metabolic Diseases
Ribavirin
Peginterferon alfa-2a
Interferon-alpha
Pioglitazone
Antimetabolites
Molecular Mechanisms of Pharmacological Action
Pharmacologic Actions
Antiviral Agents
Anti-Infective Agents
Therapeutic Uses
Hypoglycemic Agents
Physiological Effects of Drugs
Immunologic Factors

ClinicalTrials.gov processed this record on August 21, 2014