FTC safe and effective as a hepatitis B treatment in HIV/HBV coinfected patients

This article is more than 18 years old. Click here for more recent articles on this topic

The nucleoside analogue FTC (emtricitabine), which was recently licensed in the US for the treatment of HIV as part of HAART, is safe and effective as a treatment for hepatitis B in HIV and hepatitis B virus coinfected patients, according to data presented by French investigators to the Second International AIDS Society Conference on HIV Pathogenesis and Treatment in Paris on July 16th.

Earlier studies have shown that FTC can achieve a reduction of approximately three log10 in hepatitis B monoinfected patients, and investigators studied the results of three studies using FTC in HIV-positive patients.

Three studies compared FTC to d4T in combination with 3TC and efavirenz; FTC with 3TC in combination with d4T and efavirenz, and examined the safety and efficacy of FTC when used with d4T and either the investigational NNRTI emivirine or abacavir.

Glossary

deoxyribonucleic acid (DNA)

The material in the nucleus of a cell where genetic information is stored.

hepatitis B virus (HBV)

The hepatitis B virus can be spread through sexual contact, sharing of contaminated needles and syringes, needlestick injuries and during childbirth. Hepatitis B infection may be either short-lived and rapidly cleared in less than six months by the immune system (acute infection) or lifelong (chronic). The infection can lead to serious illnesses such as cirrhosis and liver cancer. A vaccine is available to prevent the infection.

pathogenesis

The origin and step-by-step development of disease.

nucleoside

A precursor to a building block of DNA or RNA. Nucleosides must be chemically changed into nucleotides before they can be used to make DNA or RNA. 

control group

A group of participants in a trial who receive standard treatment, or no treatment at all, rather than the experimental treatment which is being tested. Also known as a control arm.

These studies included 52 hepatitis B antigen-positive patients, and data on the 22 patients with detectable hepatitis B DNA at baseline. Treatment with FTC resulted in a reduction of hepatitis B DNA of 2.75 log10 after 48 weeks, with 56% having undetectable hepatitis B DNA. The d4T control group experienced an increase in hepatitis B DNA of 0.2 log10 (p<0.009 compared to FTC patients).

Equal numbers of FTC and control patients (33%) experienced severe or very severe side effects, and 23% discontinued in both arms because of adverse-events.

The investigators concluded that FTC was a safe and effective treatment for hepatitis B in HIV-positive patients.

References

Raffi F. et al.Anti-HBV activity of emtricitabine (FTC) in patients co-infected with HIV and hepatitis B virus. Antiretroviral Therapy 8 (suppl.1), abstract 215, 236, 2003.