Lung-Yi Mak1,2, Danny Ka-Ho Wong1,2, Ka-Shing Cheung1,3, Wai-Kay Seto1,2, James Fung1,2, Man-Fung Yuen4,5. 1. Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Pokfulam Road 102,, Pok Fu Lam, Hong Kong. 2. State Key Laboratory of Liver Research, The University of Hong Kong, Pok Fu Lam, Hong Kong. 3. Department of Medicine, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China. 4. Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Pokfulam Road 102,, Pok Fu Lam, Hong Kong. mfyuen@hku.hk. 5. State Key Laboratory of Liver Research, The University of Hong Kong, Pok Fu Lam, Hong Kong. mfyuen@hku.hk.
Abstract
BACKGROUND: Serum hepatitis B core-related antigen (HBcrAg) is a potential surrogate marker for intra-hepatic covalently-closed circular DNA in chronic hepatitis B (CHB). We aimed to study the profiles of serum HBcrAg in CHB patients treated with first-line nucleos(t)ide analogues (NA): entecavir (ETV), tenofovir disoproxil fumarate (TDF) or tenofovir alafenamide (TAF). METHOD: Serum HBcrAg was measured in 120 treatment-naïve CHB patients receiving one of the 3 NAs (ETV: TDF: TAF = 60: 26: 34) using the Lumipulse G HBcrAg assay in a Lumipulse G1200 analyzer (Fujirebio Inc, Toyko, Japan). Serum HBcrAg levels were measured at week 0, week 48 and week 96 of NA therapy. RESULTS: Among the 120 patients, 67 (55.8%) were hepatitis B e antigen (HBeAg) positive. Both tenofovir and ETV led to significantly lower serum HBcrAg at week 48 and week 96 compared to week 0. There were no significant differences for the magnitude of median HBcrAg decline at week 96 between tenofovir and ETV in HBeAg-positive (2.28 vs. 1.65 log U/mL, p > 0.05) and HBeAg-negative (0.83 vs. 0.54 log U/mL, p > 0.05) patients. TDF and TAF produced no significant differences in the magnitude of median HBcrAg decline at week 96 (HBeAg-positive: 2.63 vs. 1.83, respectively; HBeAg-negative: 1.04 vs. 0.40, respectively; both p > 0.05). CONCLUSION: Magnitude of reduction of HBcrAg levels after 2-year first-line treatment did not differ statistically among the current first-line NAs, although HBcrAg reduction was numerically greater in tenofovir-treated group. More long-term studies are essential to determine whether tenofovir exerts a more pronounced effect on HBcrAg.
BACKGROUND: Serum hepatitis B core-related antigen (HBcrAg) is a potential surrogate marker for intra-hepatic covalently-closed circular DNA in chronic hepatitis B (CHB). We aimed to study the profiles of serum HBcrAg in CHB patients treated with first-line nucleos(t)ide analogues (NA): entecavir (ETV), tenofovir disoproxil fumarate (TDF) or tenofovir alafenamide (TAF). METHOD: Serum HBcrAg was measured in 120 treatment-naïve CHB patients receiving one of the 3 NAs (ETV: TDF: TAF = 60: 26: 34) using the Lumipulse G HBcrAg assay in a Lumipulse G1200 analyzer (Fujirebio Inc, Toyko, Japan). Serum HBcrAg levels were measured at week 0, week 48 and week 96 of NA therapy. RESULTS: Among the 120 patients, 67 (55.8%) were hepatitis B e antigen (HBeAg) positive. Both tenofovir and ETV led to significantly lower serum HBcrAg at week 48 and week 96 compared to week 0. There were no significant differences for the magnitude of median HBcrAg decline at week 96 between tenofovir and ETV in HBeAg-positive (2.28 vs. 1.65 log U/mL, p > 0.05) and HBeAg-negative (0.83 vs. 0.54 log U/mL, p > 0.05) patients. TDF and TAF produced no significant differences in the magnitude of median HBcrAg decline at week 96 (HBeAg-positive: 2.63 vs. 1.83, respectively; HBeAg-negative: 1.04 vs. 0.40, respectively; both p > 0.05). CONCLUSION: Magnitude of reduction of HBcrAg levels after 2-year first-line treatment did not differ statistically among the current first-line NAs, although HBcrAg reduction was numerically greater in tenofovir-treated group. More long-term studies are essential to determine whether tenofovir exerts a more pronounced effect on HBcrAg.
Authors: Patrick Marcellin; Edward Gane; Maria Buti; Nezam Afdhal; William Sievert; Ira M Jacobson; Mary Kay Washington; George Germanidis; John F Flaherty; Raul Aguilar Schall; Jeffrey D Bornstein; Kathryn M Kitrinos; G Mani Subramanian; John G McHutchison; E Jenny Heathcote Journal: Lancet Date: 2012-12-10 Impact factor: 79.321
Authors: Iman Waheed Khan; Mati Ullah Dad Ullah; Mina Choudhry; Mukarram Jamat Ali; Muhammad Ashar Ali; Sam L K Lam; Pir Ahmad Shah; Satinder Pal Kaur; Daryl T Y Lau Journal: Microorganisms Date: 2021-12-17