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Ten‐Year Follow‐Up After 96 Weeks Treatment With Peginterferon Plus Tenofovir in Hepatitis D (HIDIT‐II): Improved Clinical Outcome After Combination Therapy
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Ten‐Year Follow‐Up After 96 Weeks Treatment With Peginterferon Plus Tenofovir in Hepatitis D (HIDIT‐II): Improved Clinical Outcome After Combination Therapy
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Journal Article
Ten‐Year Follow‐Up After 96 Weeks Treatment With Peginterferon Plus Tenofovir in Hepatitis D (HIDIT‐II): Improved Clinical Outcome After Combination Therapy
2026
Overview
Chronic delta hepatitis represents a major health burden. Until recently, pegylated interferon-alfa-2a (PEG-IFNα) therapy was the only treatment option for patients infected with hepatitis D virus (HDV). The aim of this study was to evaluate 10-year long-term clinical and virological outcomes after 96 weeks of treatment with PEG-IFNα with or without tenofovir disoproxil fumarate (TDF).
We conducted a retrospective follow-up study of the Hep-Net-International-Delta-Hepatitis-Intervention-Study 2 (HIDIT-II trial). Patients had received 96 weeks of treatment with either PEG-IFNα-2a plus TDF or PEG-IFNα-2a alone. Patients were included if they had completed the 96-week treatment period and had at least one follow-up visit (PEG-IFNα-2a + TDF; n = 51, PEG-IFNα-2a alone; n = 56).
Patients who received PEG-IFNα-2a + TDF were younger (37 vs. 42 years) and no significant differences were observed in other baseline characteristics between the two treatment arms. A total of 26 patients (24%) developed one or more liver-related endpoints after a mean time of 8.4 years. The incidence of endpoints was significantly lower in the combination group (14% vs. 34%, p = 0.02). The development of liver-related endpoints was also associated with non-response to therapy (HDV RNA and HBsAg), elevated HBV DNA at week 72, and baseline age, cirrhosis, platelets, INR, AST, GGT, bilirubin and albumin according to the Cox regression model.
The long-term follow-up of this large randomised clinical trial demonstrates that combination therapy with TDF and virological response to PEG-IFNα-2a (undetectable HDV RNA and HBsAg loss) were associated with better clinical outcomes.
NCT00932971, EudraCT 2008-005560-13.
Subject
/ Antiviral Agents - administration & dosage
/ Antiviral Agents - therapeutic use
/ Drug Therapy, Combination - methods
/ Female
/ Hepatitis D, Chronic - drug therapy
/ Hepatitis D, Chronic - virology
/ Hepatitis Delta Virus - drug effects
/ Hepatitis Delta Virus - genetics
/ Hepatitis Delta Virus - isolation & purification
/ Humans
/ Interferon-alpha - administration & dosage
/ Interferon-alpha - therapeutic use
/ Male
/ Polyethylene Glycols - administration & dosage
/ Polyethylene Glycols - therapeutic use
/ Recombinant Proteins - administration & dosage
/ Recombinant Proteins - therapeutic use
/ Sustained Virologic Response
