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Published on: February 1, 2017
Interferon treatment for chronic hepatitis B: enhanced response in children 5 years old or younger
Gregory E Kobak1, Todd MacKenzie, Ronald J Sokol
1Pediatric Liver Center and Section of Pediatric Gastroenterology, University of Colorado Health Sciences Center, Denver, CO, USA.
Insights
Younger children with chronic hepatitis B (HBV) show a better response to interferon treatment. This study indicates that age is a significant factor in treatment effectiveness for pediatric HBV patients.
Area of Science:
- Hepatology
- Pediatric Gastroenterology
- Virology
Background:
- Chronic hepatitis B (HBV) infection is a significant global health concern in children.
- Effective antiviral therapies are crucial for managing pediatric chronic HBV.
- Interferon therapy has been used, but its efficacy in different pediatric age groups requires further investigation.
Purpose of the Study:
- To evaluate the effectiveness of interferon-alpha2b in children with chronic hepatitis B.
- To determine if younger children (< or =5 years) exhibit an improved response to interferon therapy compared to older children.
- To identify factors influencing treatment response in pediatric HBV patients.
Main Methods:
- A retrospective chart review was conducted on 22 pediatric patients diagnosed with chronic hepatitis B.
- Patients were treated with interferon-alpha2b, with ages ranging from 17 months to 17 years.
- Treatment response was assessed based on serological markers (HBeAg, Anti-HBe, HBsAg, Anti-HBs), HBV DNA levels, and alanine aminotransferase/aspartate aminotransferase (ALT/AST) normalization.
Main Results:
- Overall, 48% of patients responded to interferon treatment, defined by serological and biochemical normalization at 6 months post-treatment.
- A significantly higher response rate was observed in children aged 5 years or younger (78%) compared to those older than 5 years (23%).
- Younger age at the time of treatment initiation was strongly associated with a better treatment response (P =.005).
Conclusions:
- Interferon therapy demonstrates potentially greater efficacy in younger children with chronic hepatitis B.
- Age is a critical factor to consider when determining the optimal treatment strategy for pediatric HBV.
- Further prospective studies are warranted to confirm these findings and optimize interferon treatment protocols for children.
Objective:
To test the hypothesis that there is an improved response to interferon in children with chronic hepatitis B (HBV) who are < or =5 years of age.
Study Design:
Retrospective chart review of 22 consecutive children with chronic HBV (ages 17 months to 17 years; median, 83.9 months; 14 male, 8 female) treated with interferon-alpha2b.
Results:
Ten patients (48%) responded to treatment [HBeAg (-), Anti-HBe (+), HBV DNA (-), HBsAg (+) and normal alanine aminotransferase/aspartate aminotransferase (ALT/AST) at 6 months after treatment], and 5 seroconverted HBsAg [above plus HBsAg negative and anti-HBs (+)]. Seven of 9 patients (78%) < or =5 years of age responded (5 cleared HBsAg). Three of 13 patients (23%) >5 years of age responded. Patient age at treatment was significantly lower in responders (63 +/- 70 months) versus nonresponders (104 +/- 55 months, P =.005). AST, ALT, and HBV DNA at the start of treatment were not different between responders and nonresponders or between patients < or =5 and >5 years old.
Conclusions:
Interferon treatment may be more effective in younger children with chronic hepatitis B.
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