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Updated: Jun 20, 2026
A Protocol for Analyzing Hepatitis C Virus Replication
Published on: June 26, 2014
Acute hepatitis C: analysis of a 126-case prospective, multicenter cohort
Thierry Morin1, Alexandre Pariente, Pierre Lahmek
1Centre Hospitalier de Bigorre, 65013 Tarbes, France. tmorin@ch-tarbes-vic.fr
Insights
Acute hepatitis C (AHC) is primarily transmitted through drug use and sexual contact. A three-month observation period can help avoid unnecessary treatment for many patients with AHC.
Area of Science:
- Hepatology
- Infectious Diseases
- Epidemiology
Background:
- Acute hepatitis C (AHC) is a significant public health concern.
- Understanding the epidemiology and transmission patterns of AHC is crucial for effective prevention and management.
- Previous studies have provided insights, but large-scale, prospective data from diverse populations remain valuable.
Purpose of the Study:
- To analyze the epidemiology, transmission modes, clinical course, and outcomes of a large cohort of patients diagnosed with acute hepatitis C in France.
- To identify factors associated with spontaneous viral clearance in AHC.
- To evaluate the effectiveness of antiviral treatments for AHC.
Main Methods:
- A prospective, multicenter, observational study was conducted.
- 126 patients with AHC were enrolled between 1999 and 2007.
- Data on demographics, transmission risk factors, clinical presentation, viral clearance, and treatment outcomes were collected.
Main Results:
- Drug use (38%) and sexual contact (21%) were the predominant suspected transmission routes for hepatitis C virus (HCV).
- Spontaneous viral clearance occurred in 40% of untreated patients observed for 3 months; jaundice and nosocomial/occupational transmission predicted clearance.
- Antiviral therapy, particularly 24 weeks of pegylated interferon-alpha alone, demonstrated high efficacy (74% sustained viral response in HCV monoinfected patients).
Conclusions:
- Acute hepatitis C is relatively rare, with drug use and sexual contact being the primary modes of transmission.
- A 3-month observation period post-diagnosis can prevent unnecessary treatment in approximately 40% of patients.
- Antiviral treatments are highly effective, with a 24-week course of pegylated interferon-alpha alone representing a favorable therapeutic option.
Objectives:
To analyze the data (epidemiology, mode of transmission, course, and outcome) of a large series of patients with acute hepatitis C (AHC) in France.
Methods:
Prospective multicenter register, observational study.
Results:
A cohort of 126 patients with AHC was prospectively enrolled between 1999 and 2007. Fifteen (12%) were HIV coinfected. Suspected modes of hepatitis C virus transmission were drug use (38%), sexual contact (21%), nosocomial transmission (18%), and occupational exposure (12%). For 40% of the patients, AHC was revealed by jaundice. Spontaneous viral clearance occurred in 40% of the 72 patients observed for 3 months without treatment. Only jaundice and nosocomial/occupational transmission were predictive of spontaneous viral clearance. Ninety patients were treated with standard or pegylated interferon-alpha alone (58%) or in combination with ribavirin (42%), for 24 weeks or less in 90%. In intention-to-treat, a sustained viral response was obtained in 58 of 78 (74%) hepatitis C virus monoinfected patients [19 of 22 (86%) with 24 weeks of pegylated interferon-alpha alone], but only six of 12 (50%) of HIV coinfected patients.
Conclusion:
AHC remains rare, and drug and sexual transmission are predominant. A 3-month follow-up after diagnosis avoids treatment for four out of 10 patients. Antiviral treatment is highly effective, 24 weeks of pegylated interferon-alpha alone being a good option.
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