alexa Long-term benefit of interferon alpha therapy of chronic hepatitis D: regression of advanced hepatic fibrosis
Infectious Diseases

Infectious Diseases

Journal of Infectious Diseases & Therapy

Author(s): Patrizia Farci, Tania Roskams, Luchino Chessa, Giovanna Peddis, Anna Paola Mazzoleni

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BACKGROUND & AIMS: Little is known about the long-term effects of interferon alpha on clinical outcome and survival of patients with chronic hepatitis D.

METHODS: Thirty-six patients with chronic hepatitis D who participated in a randomized controlled trial of a 48-week course of high (9 million units) or low (3 million units) doses of interferon alpha or no treatment were followed for an additional 2 to 14 years.

RESULTS: Long-term survival was significantly longer in the high-dose group than in untreated controls (P = 0.003) or in the low-dose group (P = 0.019) but did not differ between patients treated with 3 million units and controls. Among surviving patients at 12 years of follow-up, a biochemical response was present in 7 of 12 treated with 9 million units, in 2 of 4 who received 3 million units, and in none of 3 controls. Long-term alanine aminotransferase (ALT) normalization correlated with improved hepatic function and loss of IgM antibody to hepatitis delta antigen (anti-HD). Patients in the high-dose group had a sustained decrease in HDV replication (P = 0.008), leading to clearance of HDV RNA and, eventually, hepatitis B virus (HBV) in some patients, as well as a dramatic improvement in liver histology with respect to activity grade (P = 0.0004) and fibrosis stage (P = 0.007). Strikingly, we documented an absence of fibrosis in the final biopsy of 4 patients with a long-term biochemical response and an initial diagnosis of active cirrhosis.

CONCLUSIONS: High doses of interferon alpha-2a significantly improved the long-term clinical outcome and survival of patients with chronic hepatitis D, even though the majority had active cirrhosis before the onset of therapy.

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This article was published in Gastroenterology and referenced in Journal of Infectious Diseases & Therapy

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