Tenofovir Is Safe and Effective for Treating Hepatitis B in Adolescents

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Teenagers with chronic hepatitis B virus (HBV) infection responded well to 2 years of treatment with tenofovir (Viread) in the first study of the drug in this population, researchers reported in the August 27, 2012, advance online edition of Hepatology.

Tenofovir disoproxil fumarate has been shown to be highly effective for suppression of HBV in chronically infected adults, but adolescents have been an understudied population.

Karen Murray from Seattle Children's and University of Washington School of Medicine and colleagues conducted a double-blind, placebo-controlled trial that included 106 adolescents, age 12 to 18 years, with chronic hepatitis B. Most (91%) were hepatitis B "e" antigen (HBeAg) positive and 85% had previously been treated for hepatitis B.

Participants were randomly assigned (1:1) to receive 300 mg tenofovir DF or placebo once-daily for 72 weeks. The primary endpoint was virological response at the end of treatment, defined as HBV DNA < 400 copies/mL

Results

Based on these findings, the study authors concluded, "Tenofovir DF therapy in HBV-infected adolescents was well tolerated and highly effective at suppressing HBV DNA and normalizing ALT values in both treatment-naive adolescents and those with prior exposure to HBV therapy."

The finding that tenofovir use was not associated with bone loss is reassuring, as this known potential adverse effect of the drug may be particularly detrimental in growing adolescents.

9/26/12

Reference

KF Murray, L Szenborn, J Wysocki, et al. Randomized, placebo-controlled trial of tenofovir disoproxil fumarate in adolescents with chronic hepatitis B. Hepatology. August 27, 2012 (Epub ahead of print).