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| 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
| Key information relevant to the recruitment process for the overall study, such as dates of the recruitment period and locations |
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| Significant events and approaches for the overall study following participant enrollment, but prior to group assignment |
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| 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 |
| 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
| 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 |
| Peginterferon Alfa-2a 90 Mcg/Week | Standard of Care Followup | Total | |
|---|---|---|---|
|
Number of Participants [units: participants] |
517 | 533 | 1050 |
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Age [units: participants] |
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| <=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] |
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| Female | 155 | 150 | 305 |
| Male | 362 | 383 | 745 |
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Region of Enrollment [units: participants] |
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| United States | 517 | 533 | 1050 |
Outcome Measures
| 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 ] |
Hide Outcome Measure 2| Measure Type | Primary |
|---|---|
| Measure Title | Increase in Ishak Fibrosis Score by 2 Points or More at 2 or 4 Year Biopsies |
| Measure Description | For patients with noncirrhotic fibrosis at baseline, an increase in Ishak hepatic fibrosis score (range 0-6, higher score indicates greater fibrosis) of at least 2 points by assessment of a liver-biopsy specimen obtained during the study (collected at Year 2 and Year 4 biopsies, 1.5 and 3.5 years after randomization) |
| Time Frame | 1400 days (3.85 years) post randomization |
| Safety Issue | No |
| Explanation of how the number of participants for analysis was determined. Includes whether analysis was per protocol, intention to treat, or another method. Also provides relevant details such as imputation technique, as appropriate. |
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| No text entered. |
| 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 |
| Peginterferon Alfa-2a 90 Mcg/Week | Standard of Care Followup | |
|---|---|---|
|
Number of Participants Analyzed
[units: participants] |
447 | 452 |
|
Increase in Ishak Fibrosis Score by 2 Points or More at 2 or 4 Year Biopsies
[units: participants] |
64 | 70 |
| 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 ] |
More Information
| Principal Investigators are NOT employed by the organization sponsoring the study. |
| There is NOT an agreement between Principal Investigators and the Sponsor (or its agents) that restricts the PI's rights to discuss or publish trial results after the trial is completed. |
| Limitations of the study, such as early termination leading to small numbers of participants analyzed and technical problems with measurement leading to unreliable or uninterpretable data |
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| Responsible Party: | National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) ( James E. Everhart, MD, MPH, Project Officer ) |
| Study ID Numbers: | HALT C, N01-DK-9-2328, N01-DK-9-2328, N01-DK-9-2323, N01-DK-9-2324, N01-DK-2325, N01-DK-9-2326, N01-DK-9-2321, N01-DK-9-2327, N01-DK-9-2319, N01-9-2318, N01-DK-9-2320, N01-DK-9-2322 |
| Study First Received: | August 8, 2000 |
| Results First Received: | June 9, 2009 |
| Last Updated: | September 3, 2009 |
| ClinicalTrials.gov Identifier: | NCT00006164 History of Changes |
| Health Authority: | United States: Food and Drug Administration |