Rationale: Bulevirtide (BLV) is the only approved hepatitis D treatment Methods: Cohort study conducted at 10 specialized clinics PEG-IFN was added in a response-guided approach Treatment response was assessed at 6-month intervals Response-guided bulevirtide PEG-IFN treatment: long-term outcomes observed in the nationwide Austrian hepatitis D cohort study Results: 61 patients were included HDV-RNA TND 2 was achieved by 32.8% 10 stopped BLV 1 but 3 relapsed 19 received add-on PEG-IFN resulting in a further decline of HDV-RNA and HBsAg
Schwarz et al. (2026) studied this question.