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Study Results
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Long Term Interferon for Patients Who Did Not Clear Hepatitis C Virus With Standard Treatment (HALT-C)
This study is ongoing, but not recruiting participants.
Study NCT00006164   Information provided by National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
First Received: August 8, 2000   Last Updated: September 3, 2009   History of Changes
Study Type: Interventional
Study Design: Randomized, Open Label, Parallel Assignment
Conditions: Chronic Hepatitis C
Cirrhosis, Liver
Fibrosis, Liver
Hepatic Cirrhosis
Interventions: Drug: Peginterferon alfa-2a + Ribavirin
Drug: Peginterferon alfa-2a

  Participant Flow
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Recruitment Details
Key information relevant to the recruitment process for the overall study, such as dates of the recruitment period and locations
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Pre-Assignment Details
Significant events and approaches for the overall study following participant enrollment, but prior to group assignment
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Reporting Groups
  Description
Peginterferon Alfa-2a 90 Mcg/Week Treatment with Peginterferon alfa-2a 90 mcg administered once weekly for an additional 42 months
Standard of Care Followup Stop any peginterferon alfa-2a/ribavirin therapy and followed prospectively for an additional 42 months without treatment

Participant Flow:   Overall Study
  Peginterferon Alfa-2a 90 Mcg/Week Standard of Care Followup
STARTED   517     533  
COMPLETED   447[1]   452[2]
NOT COMPLETED   70     81  
      Withdrew or lost to follow-up               70                 81  
[1] 70 Withdrew or were lost to followup; 158 Discontinued peginterferon but were followed
[2] 81 Withdrew or were lost to followup; 9 took peginterferon outside of protocol



  Baseline Characteristics
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Reporting Groups
  Description
Peginterferon Alfa-2a 90 Mcg/Week Treatment with Peginterferon alfa-2a 90 mcg administered once weekly for an additional 42 months
Standard of Care Followup Stop any peginterferon alfa-2a/ribavirin therapy and followed prospectively for an additional 42 months without treatment

Baseline Measures
  Peginterferon Alfa-2a 90 Mcg/Week Standard of Care Followup Total
Number of Participants  
[units: participants]
517 533 1050
Age  
[units: participants]
     
<=18 years 0 0 0
Between 18 and 65 years 489 511 1000
>=65 years 28 22 50
Age  
[units: years]
Mean ± Standard Deviation
51.1 ± 7.3 50.1 ± 7.0 50.6 ± 7.2
Gender  
[units: participants]
     
Female 155 150 305
Male 362 383 745
Region of Enrollment  
[units: participants]
     
United States 517 533 1050



  Outcome Measures
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1.  Primary:   Progression of Liver Disease as Indicated by Death, Hepatic Decompensation, Hepatocellular Carcinoma, or for Patients With Noncirrhotic Fibrosis at Baseline, an Increase in the Ishak Hepatic Fibrosis Score of 2 or More Points   [ 1400 days (3.85 years) post randomization ]

2.  Primary:   Increase in Ishak Fibrosis Score by 2 Points or More at 2 or 4 Year Biopsies   [ 1400 days (3.85 years) post randomization ]

3.  Primary:   Death From Any Cause   [ 1400 days (3.85 years) post randomization ]

4.  Primary:   Development of Hepatocellular Carcinoma (HCC)   [ 1400 days (3.85 years) post randomization ]

5.  Primary:   Child-Turcotte-Pugh (CTP) Score of 7 or Higher at Two Consecutive Study Visits   [ 1400 days (3.85 years) post randomization ]

6.  Primary:   Variceal Hemorrhage   [ 1400 days (3.85 years) post randomization ]

7.  Primary:   Ascites   [ 1400 days (3.85 years) post randomization ]

8.  Primary:   Spontaneous Bacterial Peritonitis   [ 1400 days (3.85 years) post randomization ]

9.  Primary:   Hepatic Encephalopathy   [ 1400 days (3.85 years) post randomization ]

10.  Secondary:   Serious Adverse Events   [ 1400 days (3.85 years) post randomization ]


  Serious Adverse Events
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  Other Adverse Events
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