One year of lamivudine therapy for Portuguese patients with chronic hepatitis B

• Type: Article in International Scientific Journal
• Date: 2003

Authors

Areias, J (Author) Other; Calinas, F (Author) Other; Porto, A (Author) Other; Carvalho, A (Author) Other; Freitas, D (Author) Other; Macedo G (Author) Other; Noronha, R (Author) Other; Cotter, J (Author) Other; Melico Silvestre, A (Author) Other; Peixe, R (Author) Other; Pratas, J (Author) Other; Barrote, D (Author) Other; Teixeira, R (Author) Other; Augusto, F (Author) Other; Carrilho, I (Author) Other; Campante, F (Author) Other; Velosa, J (Author) Other; Carvalho, L (Author) Other; Duarte, MA (Author) Other; Guerreiro, H (Author) Other; Pires, C (Author) Other; Silva, A (Author) Other; Cotrim, I (Author) Other; Guedes, F (Author) Other; Tome, L (Author) Other; Marcelino, M (Author) Other; Goncalves, C (Author) Other; Ferreira, E (Author) Other; Matos, L (Author) Other; Peixe, P (Author) Other; Esteves, J (Author) Other; Valente, T (Author) Other; Simoes, C (Author) Other; Marinho, C (Author) Other; Jasmins, L (Author) Other; Vieira, MJ (Author) Other; Marinho, R (Author) Other; Matos, P (Author) Other; Estevens, J (Author) Other; Carrasquinho, J (Author) Other; Salcedo, G (Author) Other; Parada, P (Author) Other; Teixeira, C (Author) Other

Journal

Title: Clinical Drug Investigation

Vol. 23

Pages: 339-346

ISSN: 1173-2563

Publisher: Springer Nature

Indexing

ISI Web of Knowledge - 1 Citation

Scopus - 1 Citation

Other information

Authenticus ID: P-000-JB5

DOI: 10.2165/00044011-200323050-00004

Abstract (EN): Objective: To assess the efficacy of lamivudine treatment on hepatitis B e antigen (HBeAg) and/or hepatitis B surface antigen (HBsAg) seroconversion, on other virological and serological markers of response including hepatitis B virus (HBV) DNA and serum aminotransferases, and the safety of lamivudine treatment in hepatitis B patients. Patients: This phase III open-label study evaluated the virological and biochemical response to lamivudine in 70 Portuguese patients with HBeAg positive chronic hepatitis B. Patients were treated with lamivudine 100mg once daily for 12 months. Methods: Antiviral activity was assessed by measuring alanine aminotransferase (ALT)/aspartate aminotransferase (AST) levels at all protocol visits, and hepatitis B serology and HBV DNA were performed at baseline and at month 12 visits. Evaluation of safety and tolerance was based on clinical adverse events and laboratory analyses. Results: The primary endpoint was virological response at month 12, defined as loss of detectable HBeAg from serum with a reduction of HBV DNA to undetectable levels, and this was observed in 19/69 (27.5%) of patients. Almost half of the patients were HBV DNA negative by this time. Mean ALT values decreased steadily during treatment and by 12 months 61% of patients had values within the normal range. HBeAg seroconversion (HBeAg negative, HBeAb positive) was achieved in 27.9% of patients by 12 months, although all patients remained HBsAg positive. Conclusion: Lamivudine was well tolerated and the incidence of adverse events, was similar to those reported in previous studies. Lamivudine treatment resulted in virological and biochemical improvements in HBeAg positive chronic hepatitis B patients, with HBeAg seroconversion in one-third of patients.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8