Peginterferon Dose Evaluations for Previously Untreated Subjects With Chronic Hepatitis C Infected With Genotype 1 (Study P03471)
Status and phase
Conditions
Treatments
Details and patient eligibility
About
The objective is to compare the safety and efficacy of the following three treatment regimens in previously untreated adult subjects with chronic hepatitis C infected with Genotype 1: (1) PegIntron 1.5 µg/kg/wk in combination with weight based REBETOL (800-1400 mg/day); (2) PegIntron 1µg/kg/wk in combination with weight based REBETOL (800-1400 mg/day); and (3) PEGASYS 180 µg/wk plus COPEGUS 1000-1200 mg/day.
Full description
PegIntron Dose will be administered once weekly subcutaneously on the same day of the week:
Screening 2 Weight 40-50 kg Volume to Inject (mL) 0.22; Screening 2 Weight 51-60 kg Volume to Inject (mL) 0.28; Screening 2 Weight 61-75 kg Volume to Inject (mL) 0.33; Screening 2 Weight 76-85 kg Volume to Inject (mL) 0.41; Screening 2 Weight 86-104 kg Volume to Inject (mL) 0.48; Screening 2 Weight 105-125 kg Volume to Inject (mL) 0.58 from two vials
REBETOL Dosage (for Use With PegIntron):
Screening 2 Weight 40-65 kg Daily Dose 800 mg; Screening 2 Weight >65-85 kg Daily Dose 1000 mg; Screening 2 Weight >85-105 kg Daily Dose 1200 mg; Screening 2 Weight >105-125 kg Daily Dose 1400 mg
The PEGASYS dose of 1 mL (180 µg) will be administered once weekly subcutaneously on the same day of the week
COPEGUS Dosage (for Use With PEGASYS):
Screening 2 Weight <75 kg Daily Dose 1000 mg; Screening 2 Weight > or = 75 kg Daily Dose 1200mg
NOTE: Double Blind for PegIntron; Open Label for REBETOL, PEGASYS and COPEGUS
NOTE: REBETOL is the Schering-Plough brand name for ribavirin. COPEGUS is the Hoffman-La Roche brand name for ribavirin.
Enrollment
Sex
Ages
Volunteers
Inclusion criteria
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Previously untreated adults with chronic hepatitis C (hepatitis C virus ribonucleic acid [HCV RNA] quantitative polymerase chain reaction [qPCR] plasma positive)
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Individuals with HCV genotype 1 (mixed 1a/1b is acceptable)
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Compensated liver disease
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Pretreatment liver biopsy slides available
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Adults aged 18-70
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Individuals weighing 88-275 pounds (40-125 kg)
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Free from substance abuse for past 2 years
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Those suffering from diabetes and/or hypertension must have normal eye exams and retinal photographs (these will be done as part of the study before hepatitis C treatment is given)
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Patients and partners of patients willing to use adequate contraception during the course of the study
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Hematology laboratory results of:
- Hemoglobin (HGB) ≥ 12 g/dL for females or ≥ 13g/dL for males
- White Blood Cell Count (WBC) ≥ 3,000/mm^3
- Neutrophils ≥ 1,500/mm^3
- Platelets ≥ 80,000/mm^3
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Chemistry laboratory results of:
- Normal Thyroid Stimulating Hormone (TSH), albumin, creatinine, and direct bilirubin
- Antinuclear antibody (ANA) ≤ 1:320
- Fasting Glucose 70-140 mg/dL Note: If glucose levels are between 116-140 mg/dL or an individual has diabetes, glycosylated hemoglobin [HbA1C] must be ≤ 8.5%
Exclusion criteria
- Previous hepatitis C treatment
- Pregnant women or partners of pregnant women
- Patients or partners of patients who intend to become pregnant any time during the 48 weeks
- Women who are breastfeeding
- Individuals with liver disease not caused by hepatitis C
- Individuals infected with the hepatitis B virus and/or human immunodeficiency virus (HIV)
- Patients with a history of liver cancer (hepatocellular carcinoma)
- Known blood disorders such as hemoglobinopathy, coagulopathy, or glucose-6-phosphate dehydrogenase [G6PD] deficiency
- Body organ transplant
- Any known or suspected cancer within the past 5 years
- Individuals who currently use epoetin [EPO], granulocyte colony stimulating factor [G-CSF] and/or granulocyte monocyte colony stimulating factor [GM-CSF]
- Those having a history of or active clinical gout
- Individuals who have chronic pulmonary disease
- Individuals who have a medical condition that would likely require systemic steroids
- Those with a history of central nervous system (CNS trauma) or seizure disorders
- Current or previous use of lithium or antipsychotic drugs
- Individuals who currently have or show signs of moderate to severe depression or history of significant psychiatric disorders
- Patients with clinically significant electrocardiogram (ECG) abnormalities
- Individuals with serious heart problems such as those who have had a heart attack, uncontrolled high blood pressure, or other heart problems
- Patients that weigh > 231-275 pounds (105-125 kg) AND have a body mass index (BMI) > 30 AND have 3 or more of the risk factors below: (a) Strong family history of coronary heart disease (CHD) which includes 2 or more first-degree relatives with CHD or family history of early CHD at age < 55 for male relatives or < 65 for female relatives (b) Individuals with abnormal total cholesterol and/or sub fractions (uncontrolled hypercholesterolemia) (c) Diabetes (d) Hypertension (e) Smoking
Trial design
Primary purpose
Allocation
Interventional model
Masking
4,469 participants in 3 patient groups
Trial contacts and locations
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Data sourced from clinicaltrials.gov
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