Review article: Chronic hepatitis B - Anti-viral or immunomodulatory therapy?
March 2011
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Background First-line treatment options for chronic hepatitis B (CHB) consist of nucleos(t)ide analogues with a high barrier to resistance (entecavir and tenofovir) or the immunomodulatory agent peginterferon (PEG-IFN). The optimal choice for individual patients remains controversial. Aim To review treatment options for CHB, with a focus on deciding between prolonged nucleos(t)ide analogue therapy or a finite course of PEG-IFN. Methods A comprehensive literature search was undertaken. Results Long-lasting, treatment-maintained suppression of hepatitis B virus (HBV) DNA without resistance is achievable in most patients by entecavir or tenofovir. A sustained off-treatment response is, however, unlikely and long-term therapy must be anticipated. PEG-IFN offers a higher rate of sustained response in a subgroup of patients, but is frequently complicated by side effects. Pre-treatment predictors of response, including HBV genotype, alanine aminotransferase and HBV DNA levels, aid in selecting patients for PEG-IFN therapy. Furthermore, on-treatment markers such as quantitative hepatitis B surface antigen may be applied to identify nonresponders early during the PEG-IFN treatment course, thereby preventing unnecessary treatment. Conclusions Both nucleos(t)ide analogues and PEG-IFN can be prescribed as first-line treatment options for CHB. However, PEG-IFN should only be considered for patients with a high chance of response based on pre-treatment and on-treatment factors.
- human
- priority journal
- genotype
- nephrotoxicity
- lamivudine
- tenofovir
- antiviral resistance
- virus load
- virus mutation
- medical decision making
- peginterferon
- review
- Hepatitis B virus
- adefovir
- alanine aminotransferase blood level
- antiviral therapy
- alanine aminotransferase
- drug withdrawal
- hepatitis B
- hepatitis B(e) antigen
- seroconversion
- treatment duration
- treatment response
- virus DNA
- placebo
- neutropenia
- drug tolerability
- fatigue
- prognosis
- immunomodulation
- drug efficacy
- pathophysiology
- agitation
- anorexia
- bone marrow suppression
- depression
- entecavir
- flu like syndrome
- hepatitis B surface antigen
- hepatitis
- injection site reaction
- myalgia
- patient selection
- peginterferon alpha2a
- peginterferon alpha2b
- ribavirin
- side effect
- telbivudine
- thrombocytopenia
- thyroid disease
- unspecified side effect
- drug safety
- infection
- long term care
- bleeding
- drug induced headache
- risk benefit analysis
- medical literature
- drug approval
- drug potency
- antiviral activity
- drug indication
- eradication therapy
- nucleotide derivative
- tenofovir disoproxil