The purpose of this study is to determine whether lozenges of interferon-alpha that are dissolved in the mouth can prevent relapse in patients with hepatitis C virus infection who had a complete virologic response after receiving a combination of injected interferon-alpha and oral ribavirin.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
169
500 IU lozenges of natural human interferon-alpha for oral dissolution given once or three times per day for 24 weeks
200 mg matching placebo lozenges
Dalin Buddhist Tzu Chi General Hospital
Dalin, Chiayi County, Taiwan
Kaohsiung Chang Gung Memorial Hospital
Niaosong, Kaosiung County, Taiwan
Show-Chwan Memorial Hospital
Changhua, Taiwan
Chiayi Chang Gung Memorial Hospital
Chiayi City, Taiwan
Relapse Rate
Percentage of participants with a positive seum HCV RNA level at any post-baseline evaluation Serum HCV RNA was tested using a commercially available real-time polymerase-chain-reaction (PCR) assay kit (Roche Cobas TaqMan HCV assay kit) with a limit of detection of 15 IU/ml.
Time frame: 48 weeks
Sustained Virologic Response Rate
Percentage of participants who remained HCV RNA negative throughout the study
Time frame: 48 weeks
Normalization of ALT
Percentage of participants with a normal serum ALT level at the end of the study
Time frame: 48 weeks
Change in Serum HCV RNA Concentration
Change in serum HCV RNA concentration (log10 IU) from baseline to week 48
Time frame: 48 weeks
Change in Serum ALT
Change in Serum ALT concentration from baseline to week 48
Time frame: 48 weeks
Change in Social Functioning
Change in the Social Functioning domain of the SF-36 quality-of-life questionnaire from baseline to week 48 Social Functioning (SF) scores range from 0-100, with lower scores indicating that health/emotional problems have had a greater negative impact on social activities, compared to higher scores. SF scores are calculated using a proprietary algorithm based on responses to questions #6 and #10 on the SF-36, which are 5-point likert scales about the extent to which, and the amount of time with which physical or emotional problems have interfered with social activities.
Time frame: 48 weeks
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.
Chiayi Christian Hospital
Chiayi City, Taiwan
Keelung Chang Gung Memorial Hospital
Keelung, Taiwan
China Medical University Hospital
Taichung, Taiwan
Chang Gung Memorial Hospital
Taipei, Taiwan
Taipei Veterans General Hospital
Taipei, Taiwan
Change in Fibrotest Score
Change in fibrotest score from baseline to week 48
Time frame: 48 weeks