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Treatment of chronic HCV infection in special populations
John Hoefs1, Vikramjit S Aulakh
1Division of Gastroenterology and Hepatology, H.H. Chao Comprehensive Digestive Disease Center UCI Medical Center, Orange, CA, USA.
Insights
Standard chronic hepatitis C treatment (pegylated interferon and ribavirin) cures over 50% of patients. Viral kinetics analysis can personalize treatment for non-responders and specific populations.
Area of Science:
- Hepatology
- Virology
- Pharmacology
Background:
- Chronic hepatitis C treatment relies on pegylated interferon and ribavirin.
- Initial treatment achieves viral cure in over 50% of naive patients.
- Certain populations (African Americans, immune-suppressed, obese, cirrhotic) show reduced treatment response.
Purpose of the Study:
- To discuss viral kinetics in chronic hepatitis C treatment response.
- To explore strategies for optimizing treatment in specific patient groups.
- To address the management of treatment non-responders.
Main Methods:
- Analysis of viral kinetics during treatment.
- Review of treatment strategies for difficult-to-treat populations.
- Examination of non-responder treatment protocols.
Main Results:
- Viral kinetics can predict treatment response or non-response.
- Specific patient groups exhibit lower response rates to standard therapy.
- Treatment modification based on early viral kinetics is feasible.
Conclusions:
- Viral kinetics offer insights into treatment effectiveness for chronic hepatitis C.
- Personalized treatment adjustments can improve outcomes in non-responders.
- Optimized strategies are needed for specific populations with lower response rates.
Abstract:
The mainstay of treatment of chronic hepatitis C is pegylated interferon combined with ribavirin and more than 50% of naïve patients will have viral cure with either 6 months (genotypes 2 and 3) or 12 months (genotypes 1,4, and 6) with the initial treatment. However, populations have been defined that respond less well to routine treatment including African Americans, immune suppressed populations, obese patients and cirrhotic patients. These types of patients are enriched in groups of patients who are non-responders to treatment. This article discusses viral kinetics that may impact treatment response, strategies to maximize treatment effectiveness in these populations and the treatment of non-responders in general. Early viral kinetics can be used to define response or non-response and these results can be used to modify subsequent treatment length and dose.
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Assessment:
Pulmonary Tuberculosis I
Causative Organism
The primary infectious agent causing tuberculosis is Mycobacterium tuberculosis, a slow-growing, acid-fast, aerobic rod that exhibits sensitivity to heat and ultraviolet light. Instances of Mycobacterium bovis and Mycobacterium avium contributing to the development of TB infection are rare.
Mode of...
